Last Updated： Aggregation Period:Mar 18, 2026～Apr 14, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Mar 18, 2026～Apr 14, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Mar 18, 2026～Apr 14, 2026
This ranking is based on the number of page views on our site.
631～660 item / All 851 items
Contributing to space-saving of the substrate mounting bottom area!
We can accommodate everything from pulse transformers to main transformers, as well as general-purpose items like smooth choke coils! With 55 years of experience, we respond to detailed needs such as core shapes with our accumulated know-how and winding technology. *For more details, please refer to the PDF materials or feel free to contact us.
The insulation grade is Type A, and the electrical characteristics comply with JIS standards! This is a compact power transformer that can also be mounted in a P band.
Introducing the small power transformers handled by Takachiho Electric. They are lightweight and easy to mount on a circuit board with fixed pins. They can support high voltage ratings with primary and secondary separated windings. Our company responds quickly from quotation to delivery. We can accommodate production even in small lots, so please feel free to contact us. 【Features】 ■ Compact and lightweight with fixed pins for easy circuit board mounting ■ P-band mounting is also possible ■ High voltage ratings can be supported with primary and secondary separated windings ■ Insulation grade is Class A, and electrical characteristics comply with JIS standards ■ Core shape is EI type *For more details, please refer to the PDF document or feel free to contact us.
For semiconductor manufacturing equipment and industrial machinery! Environmentally friendly products that comply with the RoHS directive.
Introducing the three-phase power transformer with a housing handled by Takachiho Electric. The shape is compact and slim for storage. As options, we can accommodate thermal protection elements, inrush current prevention circuits, waterproofing, vibration resistance, and more. Our company responds quickly from quotation to delivery. We can also handle production from small lots, so please feel free to contact us. 【Features】 ■ Compact ■ Slim storage type ■ Quick response from quotation to delivery ■ Production available from small lots ■ Environmentally friendly product compliant with RoHS directives ■ Compatible with ULB type insulation systems *For more details, please refer to the PDF materials or feel free to contact us.
Preventing the influence of external magnetic fields and noise generated internally! We can accommodate production even in small lots.
We would like to introduce a low-frequency transformer suitable for low-level input converters handled by Takachiho Electric. The structure features a magnetic shield made of permalloy, which prevents the influence of external magnetic fields and noise generated internally. Our company responds quickly from quotation to delivery. We can accommodate production even in small lots, so please feel free to contact us. 【Features】 ■ Ideal for low-level input converters and similar applications ■ Structure includes a magnetic shield made of permalloy ■ Prevents the influence of external magnetic fields and internal noise ■ Quick response from quotation to delivery ■ Production possible even in small lots *For more details, please refer to the PDF document or feel free to contact us.
ULB type insulation system compatible! It prevents the influence of external magnetic fields and noise generated internally.
We introduce low-frequency transformers suitable for input transformers of choppers handled by Takachiho Electric. The structure features a magnetic shield made of permalloy, which prevents the influence of external magnetic fields and noise generated internally. Our company responds quickly from quotation to delivery. We can accommodate production even for small lots, so please feel free to contact us. 【Features】 ■ Well-suited for input transformers of choppers ■ Structure includes a magnetic shield made of permalloy ■ Prevents the influence of external magnetic fields and internal noise ■ Quick response from quotation to delivery ■ Production possible even for small lots *For more details, please refer to the PDF document or feel free to contact us.
Widely used in input transformers and similar devices operating at low levels! It also prevents noise generated internally.
We would like to introduce the TK type low-frequency transformer handled by Takachiho Electric. The structure is housed in a case with a square lid, featuring a magnetic shield made of materials such as permalloy to minimize the influence of external magnetic fields. It also prevents noise generated internally. Our company responds quickly from quotation to delivery. We can accommodate production even in small lots, so please feel free to contact us. 【Features】 ■ Widely used for input transformers and similar devices that operate at low levels ■ Fixed with screw type ■ Impedance at 1kHz 1V DC=0 within ±20% ■ Dielectric strength ACV for 1 minute ■ Insulation resistance DC100V over 100MΩ *For more details, please refer to the PDF document or feel free to contact us.
We handle a wide range of world-class electronic devices!
NT Sales Corporation provides world-class electronic devices by leveraging a global procurement network. As a specialized trading company in electronics, we deliver "solutions needed on-site." We offer a wide range of products, focusing on system solutions such as battery charge and discharge testing systems and constant humidity and temperature chambers, as well as device solutions. Please feel free to contact us with your inquiries. 【Main Products】 Transformers, coils, reactors, current sensors, various sensors, capacitors, resistors, relays, piezoelectric ceramics, piezoelectric actuators, memory alloys, permalloy, ferrite cores, dust cores, magnets, USB connectors, pin headers, die-cast parts, heat sinks, custom power supplies, circuit board assemblies, etc. *For more details, please refer to our catalog or feel free to contact us.
Introducing a production support system that provides the optimal management environment!
This catalog is a comprehensive catalog of Extrance CS Co., Ltd., which primarily provides internet server hosting services. It includes various production support systems, such as a "simple verification system" that reads information with a handheld scanner during shipping operations and cross-references it with management information to achieve zero shipping errors, as well as applications that visualize the arrival status of trucks. We provide an optimal management environment based on our extensive track record, allowing you to choose a system that suits your needs. [Contents] ■ Overview of Production Support Systems ■ Production Support Systems *For more details, please refer to the catalog or feel free to contact us.
We offer handmade and handcrafted products!
At KDS Corporation, we specialize in small quantities of various custom-made products and manufacture the transformers you order by hand. We accept orders from standard specification products starting from one unit to custom products, prototypes, and mass-produced items, all offered at low prices and with short delivery times. If you have any inquiries regarding commercial frequency transformers, please feel free to contact us. 【Products We Handle】 ■ High Voltage Transformers ■ High Insulation Voltage Transformers ■ Single-phase Transformers ■ Three-phase Transformers ■ Single-phase Multi-winding Transformers, etc. *For more details, please download the PDF or feel free to contact us.
An eco-friendly single-phase insulated transformer that pursues cost reduction and miniaturization. Applicable standard JEC2200, insulation class B.F.H type transformer.
An eco-friendly transformer that pursues cost reduction and miniaturization. It performs voltage conversion from 200V to 100V and can construct a circuit where the primary and secondary are electrically insulated. It is optimal for general industrial control panels and general electrical construction work. By pursuing a compact and inexpensive single-phase isolation transformer, we reduce the weight of the transformer itself, thereby lowering the weight of the equipment and control panel and minimizing initial costs. = Applicable Standards = ■ Domestic Standards: JEC-2200, JISC6436, JISC5310, JISC61558, JEC-2210 standards ■ International Standards: Compliant with global safety standards, we maintain direct contact with certification bodies in various countries and conduct certification tests in-house. - European EN standard transformers, low voltage directive compliant transformers applicable standards 〇 IEC61558, EN61558 〇 IEC60076, EN60076 〇 Manufacturing range 30VA to 200kVA - UL standard transformers, CSA standard transformers applicable standards 〇 UL506, UL1561, UL5085, C22.2 〇 Manufacturing range 30VA to 200kVA ■ We manufacture in compliance with CE, UL, and CSA worldwide. ■ For specifications, dimensions, etc., please contact our technical department.
It is a single-phase isolation transformer designed based on EN61558 and IEC61558, classified as a "transformer without short-circuit protection circuit."
The HEC-240UL44 is a single-phase isolation transformer designed in accordance with EN61558 and IEC61558 under the European Low Voltage Directive. It is classified as a "transformer without short-circuit protection circuits" for isolation transformers and safety isolation transformers. CE marking is possible for various European countries, and a Technical Construction File (TCF) is included. In the UL certification, individual certification is adopted, and it has obtained UL5085 and CSA. File No. 204421 is standardly used as a power transformer for automotive equipment. ■ Insulation class: B.H. ■ Standards: EN61588 (IEC61558) / UL5085 / C22.2 ■ Capacity: 240VA ■ Voltage: 230, 220, -10, 0, +10 / 240 ~ 100. 0. 0 ■ Protection class: IP00 ■ Pollution degree: 3
Designed according to EN61558 and IEC61558 based on the European Low Voltage Directive, it is classified as a "transformer without short-circuit protection circuit."
This is a safety isolation transformer certified by TUV Rheinland (200/100V system). CE marking is possible for European countries, and a Technical Construction File (TCF) is attached. It adopts an insulation system according to UL1446 and has obtained structural certification under UL506/UL5085 and CSA. File No. E206262, E225331. ■ Insulation class: B.H. ■ Standards: EN61558 (IEC61558)/IEC60076/UL506/UL5085/UL1561/C22.2 ■ Model: HEC-xx-UL-yzw (xx and yzw will contain numbers or letters) ■ Capacity: 50VA~75kVA ■ Voltage: Primary side (P) below 600V (please specify your desired voltage) Secondary side (S) below 600V (please specify your desired voltage) ■ Protection class: IP00 ■ Pollution degree: 3
This is a slim, lightweight cost-performance model. It is designed based on the JEC-2200.
It has the function of insulation and voltage boosting/reducing for single-phase circuits. Input and output can be connected not only through a terminal block but also through lead wires and connectors. The external shape is basically the same as WECA (vertical) / WECC (horizontal). ■Applicable standard: JEC-2200 ■Insulation class: B.H. ■Capacity: 100VA to 2.5kVA ■Voltage: Please specify the desired voltage for the primary side (P) Please specify the desired voltage for the secondary side (S) ● Explanation and precautions regarding inrush current ● WECC, WECA, and WT transformers use high-performance electromagnetic steel plates (0.2mm) and are designed with a significantly higher magnetic flux density compared to transformers using standard EI cores. On the other hand, the inrush current during excitation is larger, so when replacing with the current transformer, there is a possibility that the overcurrent protection device on the primary side may malfunction. If the protection device on the primary side is the same as the rated current, the likelihood of malfunction becomes very high, so it is necessary to either adopt a product designed to suppress inrush current or increase the rated interrupting current value of the protection device. Since measures against inrush current depend on the compatibility with the protection device, please contact our technical department for special designs and other inquiries.
A multi-shielded model with first and second shields. It is a high-performance noise-blocking converter that achieves higher attenuation than the CNS/LNS series.
JIS C 6436 or JEC-2200 compliant products (CE/UL compatible) Noise stopper transformers are designed to block external noise coming from outside the device and reduce the radiation noise generated by the device itself. From minor malfunctions caused by slight noise to serious issues. Tsuruta Electric's noise stopper transformers prevent noise intrusion in both common and normal modes, ensuring that the power line's sine wave output remains consistently clean. ■ Standards: JIS C 6436 / JEC-2200 ■ Model: MNS series ■ Capacity: 500VA to 3kVA ■ Voltage: 1φ 200/200 or 200/100 or 100/100 (Please consult us if you require a different voltage)
Tsuruta Electric's compact single-phase isolation transformers with band-type clamping show excellent cost performance.
The transformer can be manufactured in a compact size without a terminal board (lug terminals). Wiring dimensions can be reduced due to soldering, and the unit can be easily stored in a narrow box. ■Standard : JIS C 6436 ■Model: BA series ■Capacity: 1.5VA to 80VA ■Voltage: Primary (P), Secondary (S) Please specify your necessary voltage. ■Single-phase isolation transformers compliant with Japanese domestic standards Single-phase isolation transformers are basically designed in accordance with Japanese domestic standards JEC2200, JISC6364 and JISC5310. Terminal blocks, lead wires and connectors can be specified for input and output. The line-up ranges from compact, lightweight, and quick-delivery types to ones with large 50kVA capacities. ■Single-phase isolation transformers complying with overseas standards (Europe and USA) Single-phase isolation transformers with a basic design (EN standard) conforming to the EU Low Voltage Directive and with the CE marking attached, and single-phase isolation transformers conforming to the US NEC (NFPA 70/79) and with the UL marking attached are available. We also could provide necessary support for exports overseas.
We will introduce a variety of standard trans coils.
We offer transformers with a wide range of sizes and advantages in installation space, as well as coils with minimal leakage flux. You can choose from simple types suitable for areas without issues like dust, or semi-closed types that excel in all aspects, including low leakage flux and moisture resistance, according to your needs. 【Featured Products】 ■ TK Series (1.4VA to 30VA) ■ Trodile Series (100VA to 750VA) ■ OI Series (108VA to 800VA), etc. *For more details, please download the PDF or feel free to contact us.
We will solve the mismatch between the transistor amplifier and the speaker!
The "Impedance Matching Transformer" features excellent characteristics that are the culmination of 62 years of experience in winding technology for our communication transformers. This device is used by inserting it between a transistor amplifier and a speaker, connecting it to match the impedance. When the impedance of the transistor amplifier and the speaker is matched, significant effects can be achieved. 【Features】 ■ Increased volume ■ Enhanced bass ■ Smoother treble ■ Fully extracts the performance of the transistor amplifier ■ Smooths the waveform of digital amplifiers *For more details, please refer to the PDF materials or feel free to contact us.
Customization of output voltage is possible according to the target!
The "PA Series" is a high-voltage pulse output unit that integrates a DC power supply, amplifier, and high-voltage transformer. It allows for customization of the output voltage to suit the application, making it effective for generating plasma and ions. If you have any specific requests regarding custom outputs, please feel free to contact us. 【Features】 ■ Ideal for plasma and ion generation ■ Integration of DC power supply, amplifier, and high-voltage transformer ■ Low cost *For more details, please download the PDF or feel free to contact us.
OI Transformers are custom products of Musashino Tsukou, engaged in the design, manufacturing, and sales of various transformers and reactors.
By combining a rectangular-shaped core and a strip-shaped core, we have achieved a slim design with excellent leakage and temperature characteristics. It also has an advantage in installation space compared to the EI type. 【Products Available】 ■ Compact VA Series *For more details, please refer to the PDF document or feel free to contact us.
Our high-voltage transformer for X-ray generators has a proven track record as a special transformer made from original bobbins.
We have a proven track record of delivering various products, including dental equipment and pet X-ray devices, to many users.
![[Presenting Basic Knowledge Materials!] Collection of Basic Technical Materials on Transformers](https://image.mono.ipros.com/public/product/image/ca0/2000582174/IPROS84370949391700004152.png?w=280&h=280)
We are offering a technical document summarizing essential basic knowledge for considering transformers (voltage converters) for free!
This document introduces the basic technology of transformers. It explains the types of transformers, types of reactors, classification based on transformer structure, types of insulation for transformers, constituent materials of transformers, main types of transformers and their characteristics, and various inspection methods. For any inquiries regarding transformers, please contact Musashino Tsukou, which has been in business for 60 years. 【Contents (excerpt)】 ■ What is a transformer ■ Types ■ Principles ■ Classification based on transformer structure ■ Types of insulation for transformers *For more details, please refer to the PDF document or feel free to contact us.
Composed of two windings independent of the iron core! Here is an introduction to the principles of transformers!
I will introduce the principles of a transformer. A transformer consists of a core made of iron and two independent windings. The winding connected to the power source is called the primary winding, and the winding connected to the load is called the secondary winding. When an alternating voltage is applied to the primary winding (P), a current flows through it (referred to as the excitation current), which generates a magnetic flux within the core. This change in magnetic flux induces a voltage in the secondary winding (S), and the induced voltages V1 and V2 in the primary and secondary windings are determined by the ratio of the number of turns in the primary winding N1 to the number of turns in the secondary winding N2. When a voltage is applied to the primary winding, a voltage proportional to the number of turns is induced in the secondary winding, and by changing N1 and N2, the ratio of the primary voltage to the secondary voltage can be arbitrarily altered. *For more details, please refer to the PDF document or feel free to contact us.*
Introducing the structure of "external iron type transformers" and "internal iron type transformers"!
I will introduce the classification of transformers based on their structure. Transformers are constructed using a combination of a core and windings. "External core transformers (including wound core types)" have two or more magnetic circuits surrounding the windings. They have an appearance where the core is located outside the windings. "Internal core transformers" have a single magnetic circuit with windings arranged around it. They have an appearance where the core is located inside the windings. *For more details, please refer to the PDF document or feel free to contact us.
The temperature rise limit is defined by the insulating materials used! An introduction to the types of insulation for transformers.
Transformers are reliable and long-lasting devices, but prolonged use can lead to deterioration of the winding insulation and insulating materials due to temperature effects. They are also significantly affected by the ambient temperature in which they are used. To ensure safe long-term use, temperature rise limits are established based on the insulating materials used, and each type of insulation material has its own specified temperature rise limit. The maximum allowable temperature, under rated conditions, is the temperature rise limit of the insulation type plus the reference ambient temperature (40°C). When installed and used in control panels, it is generally necessary to consider that the internal temperature rise of the panel can be 5 to 10°C. *For more details, please refer to the PDF documentation or feel free to contact us.
![[Information] Main Types of Transformers and Their Characteristics](https://image.mono.ipros.com/public/product/image/035/2000585163/IPROS48813220284692201632.png?w=280&h=280)
Introduction to the main types and features of transformers, such as "cut core transformers" and "OI type transformers"!
This document introduces the main types and features of transformers. It includes standard and low-cost "cut core transformers," as well as "cut core type transformers," "OI type transformers," and "NCW type transformers." Please take a moment to read it. 【Featured Products】 ■ Cut core transformers (EI core, cut core, etc.) ■ Cut core type transformers ■ OI type transformers ■ NCW type transformers *For more details, please refer to the PDF document or feel free to contact us.
One-stop support from design to mass production! Technical information such as key material data and winding techniques (edgewise winding of rectangular wire, litz wire) is also included! Please take a moment to read it.
This catalog is a comprehensive catalog of products handled by Musashino Doko Co., Ltd. It includes a variety of items such as "power transformers," "control transformers for distribution boards," "reactors," and "switching transformers." We provide high-quality transformers backed by reliable technology, from design to mass production, all in a one-stop service. We invite you to read through it. *For those who wish, we will send the comprehensive catalog by mail, so please feel free to download it or contact us! [Contents] <Power Transformers> ■ Board-mounted transformers ■ Transformers for equipment installation ■ NCW transformers ■ OI transformers ■ Cut core transformers *For more details, please refer to the PDF materials or feel free to contact us.
![[Custom Order Example] Slim OI Transformer Compliant with DIN Standards](https://image.mono.ipros.com/public/product/image/fad/2000639780/IPROS44865872003910837159.png?w=280&h=280)
Customization requiring delicate processing! Introduction of a case where we manufactured a transformer that fits into the customer's product.
We would like to introduce an example of a slim OI transformer that complies with DIN standards. We received a request from a customer who wanted to adopt a power transformer that fits within a 1 DIN size but was struggling with the height limitations of existing slim transformers. In response, our company further customized the well-regarded OI transformer, known for its slim design under 100W, to create a transformer that fits the customer's product. By utilizing the dead space of the O-shaped iron core to draw out taps, we achieved a slim design and size reduction. 【Custom Product Specifications】 ■ Size and Dimensions: 73mm × 50mm × 35mm ■ Voltage Specifications: Primary Voltage 100–200V / Secondary Voltage 100–200V ■ Capacity: 8–156VA ■ Applicable Standards: JIS-C6436 ■ Insulation Type: Class E ■ Products Used: Measurement equipment, disaster prevention equipment *For more details, please refer to the PDF document or feel free to contact us.
We can provide high-precision prototypes with short delivery times through cross-adjustment by processing! This transformer can accommodate from EPC17 to large cores.
We would like to introduce a case of a flyback transformer with controlled inductance tolerance. In the development of switching power supplies, we received a request to reduce the inductance variation of the flyback transformer and to conduct early practical evaluations of the transformer. Typically, inductance adjustments are made using processed products from ferrite core manufacturers or space materials, but there are challenges regarding delivery times and accuracy. However, our company, which owns grinding processing equipment, has overcome these challenges and was able to provide prototypes in a short time. Additionally, this transformer can accommodate sizes from EPC17 to large cores. 【Custom Product Specifications】 ■ Size and Dimensions: EER9.5 to PQ100 ■ Applicable Standards: UL1446 ■ Insulation Type: Class B ■ Products Used: Industrial equipment, medical devices, measuring instruments *For more details, please refer to the PDF document or feel free to contact us.
We will support the introduction from the specification review and design stage!
We offer custom-made transformers and reactors. We support you from the specification consideration and design stage, and can respond to a wide variety of customer requests, including the application of international safety standards and the reproduction of other companies' off-the-shelf products. Please feel free to contact us with your requests. 【Features】 ■ Custom-made to match usage conditions and product specifications ■ Support from transformer selection and capacity calculation to implementation ■ Comprehensive support from design compliant with international safety standards to standard application ■ Proposals for reproduction and improvement of other companies' off-the-shelf products ■ Flexible response to small lot and prototype projects *For more details, please contact us.
We can address various challenges such as heat generation and loss measures in high-frequency skin effect, improving magnetic coupling efficiency, and provide one-stop support from design development to mass production!
"Are you having trouble selecting transformers or choke coils in the high-frequency range?" ◆ High heat generation and losses ◆ Low magnetic coupling, large leakage flux, and leakage inductance ◆ Unable to select the configuration of litz wire (stranded wire) ◆ Cannot achieve DC superimposition characteristics "Musashino Electric has various know-how to solve your problems!" ★ Measures against skin effect in the high-frequency range Suppression of current distribution distortion through subdivision of conductors using litz wire ★ Measures to improve magnetic coupling Significant improvement in magnetic coupling through our unique method of "sandwich winding" ★ Proposal for litz wire configuration Based on abundant experimental data, we propose an optimal balance of litz wire (wire diameter, number of twists, number of turns) in terms of efficiency vs. heat generation. ★ Proposal and grinding processing of magnetic materials suitable for the frequency range We propose magnetic materials with suitable high-frequency characteristics such as ferrite, dust, and amorphous materials. Achieve low tolerance inductance values through gap processing with our uniquely developed magnetic material grinding equipment. ◎ We design and develop custom transformers and choke coils suitable for various power conditioners and motor drive inverters that meet high-frequency high current requirements, overcoming various challenges!
