双信電機 List of Products and Services

Our company manufactures and sells noise control products for various fields, including industrial machinery, medical devices, mobile terminals, automobiles, and aerospace/industrial equipment. We also offer "noise measurement, diagnosis, and countermeasure services" based on the design technology cultivated through the manufacturing of noise filters, reactor cores, and AC capacitors. Based on the measurement and diagnosis results, we will propose appropriate countermeasure components and customizations. Please feel free to consult us regarding EMC testing for compliance and any concerns related to CE marking. 【Free Noise Control Consultation Available】 Target Equipment: General industrial equipment Consultation Period: Until July 31, 2025 Consultation Topics: - Regarding CE marking acquisition - Methods for noise control - Noise testing - Selection of noise filters - Customization of noise filters, etc. *For more details, please refer to the materials available for download in the catalog. Feel free to contact us as well.

• EMC countermeasure products

The "LC79P Series" is a large-capacity, low-loss type of film capacitor for smoothing applications. It has excellent capacitance accuracy, with minimal variation due to operating temperature, and the initial capacitance deviation is small, allowing for high-precision design. This product is not intended for use with pulse currents or pulse voltages; it is a capacitor specifically designed for smoothing circuit applications. 【Features】 - High ripple current tolerance per capacitance allows for miniaturization. - Unique safety mechanism from Soshin Electric prevents short-circuit mode. - Long lifespan due to the use of polypropylene film as the dielectric. - Low inductance due to the structure of the internal electrode plates. - The mounting shape of the case and terminals can be customized. *For more details, please download the PDF or feel free to contact us.

• Capacitor

We would like to introduce our zero-phase reactor core, the 'RC Series'. The "RC5000ZZ Series" features core sizes ranging from 38φ to 128φ. It has a structure that is less likely to damage wire insulation due to the use of a resin cover. The "RC5000Y Series" features core sizes ranging from 45φ to 200φ and achieves high attenuation by using Hi-μ material. 【Features of the RC5000ZZ Series】 ■ Core sizes ranging from 38φ to 128φ ■ Structure that is less likely to damage wire insulation due to the use of a resin cover ■ Strong against vibration due to integrated molding *For more details, please download the PDF or feel free to contact us.

• filter

The "NF-SVB series" is a noise filter for overseas neutral point grounded power supplies. The internal capacitors of the filter have an open failure mode, ensuring safety. We also offer the "NF3000C-SWA series," which includes a Y capacitor disconnection switch for voltage withstand testing. Additionally, it is compatible with SCCR (the product names with SCCR values are compatible). Circuit constants can be changed for optimization. 【Features】 ■ SCCR compatible products (product names with SCCR values are compatible) - Obtained in combination with circuit breakers - Can be used with any manufacturer's circuit breaker if it is a Listed certified product ■ High attenuation type for European power supplies ■ The internal capacitors of the filter have an open failure mode, ensuring safety *For more details, please download the PDF or feel free to contact us.

• filter

The "HF-SJB Series" is an AC noise filter for power generation and storage systems. It is designed for neutral-grounded power supplies. (In a neutral-grounded power supply, leakage current as described will not flow if there is no phase loss.) The "HF3000C-SJBW Series" is equipped with a Y-connection disconnection switch for withstand voltage testing measures. 【Features】 ■ Achieves 80% miniaturization compared to conventional products in the same class ■ Wide lineup ranging from 300 to 1600A ■ The HF3000C-SJBW Series includes a Y-connection disconnection switch for withstand voltage testing measures ■ Designed for neutral-grounded power supplies *For more details, please download the PDF or feel free to contact us.

• filter

The "HF-SJB Series" is a DC noise filter designed for power generation and storage systems. It achieves a 70% reduction in size compared to conventional products in the same class. The "HF2000E-SJBW Series" is equipped with a Y capacitor disconnection switch for withstand voltage testing. Please feel free to contact us if you have any inquiries. 【Features】 ■ Achieves a 70% reduction in size compared to conventional products in the same class ■ A wide lineup ranging from 300 to 1600A ■ The HF2000E-SJBW Series includes a Y capacitor disconnection switch for withstand voltage testing *For more details, please download the PDF or feel free to contact us.

• filter

The "HF-SZA series" is a space-saving book-type high attenuation noise filter that complies with SCCR standards. The terminal cover has a detachable structure, improving workability. Circuit constant changes for optimization are possible. The capacitors inside the filter have an open failure mode, providing peace of mind. Three series can be selected based on attenuation characteristics. 【Features】 ■ SCCR compliant - Obtained in combination with breakers - Can be used with any manufacturer's breaker if it is a Listed certified product ■ Low leakage current and high attenuation type for domestic power supply ■ The capacitors inside the filter have an open failure mode, providing peace of mind * For more details, please download the PDF or feel free to contact us.

• filter

The "NF-VZ series" is a space-saving, low-profile general-purpose noise filter. It is compliant with SCCR standards and can be used in combination with circuit breakers. Any manufacturer's circuit breaker can be used as long as it is a Listed certified product. It can be used in applications such as semiconductor manufacturing equipment, machine tools, general-purpose inverters, servos, power supply devices like CVCF, elevator power supplies, and factory power supplies. 【Features】 ■ SCCR compliant products (product names with SCCR values are compliant) ・Obtained in combination with circuit breakers ・Any manufacturer's circuit breaker can be used if it is a Listed certified product ■ Compact low-profile general-purpose type *For more details, please download the PDF or feel free to contact us.

• filter

The "NF-SVA/SVF Series" is a space-saving, book-shaped general-purpose noise filter. It contributes to effective space utilization in narrow installation areas and devices with high mounting density, as well as to miniaturization. Additionally, the structure without removable terminal covers improves workability. Circuit constant changes for optimization are possible. 【Features】 ■ SCCR-compliant products (products with SCCR values indicated are compliant) - Obtained in combination with breakers - Can be used with any manufacturer's breaker if it is a Listed certified product ■ Low leakage current type for domestic power supply ■ The internal capacitors of the filter have an open failure mode for safety *For more details, please download the PDF or feel free to contact us.

• filter

The "NF-Dx Series" is a compact, high-performance noise filter with overvoltage category III certification. It allows for the selection of series based on application and noise level within the same housing. We offer low leakage current types for domestic power supplies, high attenuation types for overseas neutral-grounded power supplies, saturation-resistant types, and wideband high attenuation types. Additionally, it can be used in applications such as semiconductor manufacturing equipment, machine tools, general-purpose inverters, and servos, as well as power supply devices like CVCF. 【Lineup】 ■ NF3000C-DxA Series: Low leakage current type for domestic power supplies ■ NF3000C-DxB Series: High attenuation type for overseas neutral-grounded power supplies ■ NF3000C-DxN Series: Saturation-resistant type ■ NF3000C-DxU Series: Wideband high attenuation type *For more details, please download the PDF or feel free to contact us.

• filter

The "HF-UP Series" is a compact, high-damping noise filter for single-phase two-wire systems. Products in the range of 5 to 30A can be positioned vertically. They can be used in semiconductor manufacturing equipment, machine tools, industrial robots, medical electronic devices, general-purpose inverters, CVCF power supplies, elevator power supplies, and factory power supplies. Please feel free to contact us when you need assistance. 【Features】 ■ High-damping type for single-phase power supply ■ Vertical positioning is possible for 5 to 30A models ■ The UPF series with improved low-frequency characteristics is also available *For more details, please download the PDF or feel free to contact us.

• filter

The "NF-UP Series" is a compact and versatile noise filter with a single-phase two-wire configuration. It can be used in semiconductor manufacturing equipment, machine tools, industrial robots, medical electronic devices, general-purpose inverters, power supply units such as CVCF, elevator power supplies, and factory power supplies. This product features a resin case type with a compact design. Please feel free to contact us when you need assistance. 【Product Lineup】 ■ General-purpose UP Series ■ High attenuation type: UPH Series ■ Low leakage current type: UPL Series ■ Low-frequency performance improvement type: UPF Series *For more details, please download the PDF or feel free to contact us.

• filter

The "LT-C Series with Circuit Disconnection Mechanism" is a surge absorber that achieves a compact design through the adoption of multi-terminal elements. Even if the SPD element deteriorates or fails, the ZnO circuit disconnection mechanism prevents the SPD main unit from smoking or catching fire (failure mode open). Additionally, the built-in ZnO (zinc oxide) element disconnection mechanism eliminates the need for traditional external fuses, contributing to space-saving. 【Features】 ■ Safe design (improved safety) and reduced lightning damage ■ Reliable lightning surge resistance ■ Compact design (effective use of space) ■ Compliance with safety standards *For more details, please download the PDF or feel free to contact us.

• filter

Introducing two types of noise filters that achieve both miniaturization and lightweight design while supporting high current: the 'HF3000C-Rx series' and 'NF3000C-VZ4 series.' Compared to our conventional products, these filters significantly reduce space requirements. They can handle a voltage of 480V and are capable of accommodating voltage fluctuations of 10% (up to a maximum of 528V). The VZ4 series features a low-profile design with a height of 110mm, meeting the demand for space-saving solutions. The Rx series achieves high attenuation performance and is scheduled to obtain safety standards and SCCR certification by December 2024. 【Features】 ■ Achieves significant miniaturization and lightweight design while maintaining equivalent performance to our conventional products. ■ Supports high voltage and can eliminate noise from power lines collectively. ■ Contributes to noise countermeasures in semiconductor manufacturing equipment, machine tools, and production facilities. *For more details, please refer to the materials available for download in PDF format. Feel free to contact us with any inquiries.

• Other machine elements

Low inductance, absolute confidence in high frequency and large current! ■ Achieved low inductance through cultivated design know-how! ■ Miniaturization is possible due to high ripple current tolerance per capacitance ■ Our unique fuse pattern avoids short mode while achieving low heat generation at high currents (patent pending) ■ Using metallized polypropylene film as the dielectric, it has a longer lifespan compared to electrolytic capacitors * Customization is available. For more details, please refer to the PDF document or feel free to contact us.

• Capacitor

We offer on-site testing for CE marking certification and Korean KCs declaration. We conduct a wide range of investigations, diagnostics, and countermeasures for various types of noise interference, and we support noise countermeasures with our extensive know-how. EMC testing can be performed at your specified location. We welcome inquiries regarding noise issues, so please feel free to contact us when needed. 【Features】 ■ On-site testing (EMC testing at your specified location) is available ■ A wide range of investigations, diagnostics, and countermeasures for various noise interferences ■ On-site testing supported by a team of 7 *For more details, please refer to the related links or feel free to contact us.

• Other services

We would like to introduce the "SCCR-compliant noise filter" that we handle. In response to the demands of the North American market and the semiconductor market, we have a lineup of SCCR-certified products. We offer the book-type L2 stage standard model "HF3000C-SZA" and the L2 stage model "HF3000C-TZA," which supports vertical and horizontal mounting. Please feel free to contact us when you need assistance. 【Product Overview】 ■ SCCR-compliant in combination with circuit breakers "up to 30kA" To meet the SCCR value, it is necessary to select a Listed certified circuit breaker. ■ Obtained with various noise filters of CISPR11 Class A (general) / Class B (high attenuation) ■ No need for separate fuses (certification tests conducted with circuit breakers) *For more details, please refer to the related links or feel free to contact us.

• filter

We would like to introduce the "Hybrid Coupler" that we handle. We offer a diverse lineup of products such as HMD814D-HYB2150, HMD2700A-HYB0850, and HMD6708D-HYB2200. Thanks to our unique materials and structure, these couplers are compact yet support wide bandwidth and high power, making them suitable for base stations. Please feel free to contact us when you need assistance. 【Lineup (Excerpt)】 ■ Miniaturization through unique materials and structure ■ Wide bandwidth and low insertion loss characteristics ■ Suitable for distribution/synthesis of mid-power/high-power signals ■ Compatible with small cells to macro cells *For more details, please refer to the PDF document or feel free to contact us.

• Coupler

At the Asama Test Lab of Shōshin Electric, we have started a remote EMC measurement service. Using Microsoft TEAMS (or your preferred web conferencing system), our test engineers will handle everything from equipment setup to measurement while interacting through real-time video. We are equipped with a 10m large anechoic chamber and a shielded room, so please feel free to contact us when needed. 【Features】 - Utilizes Microsoft TEAMS - Compatible with your preferred web conferencing system - Interaction through real-time video - Support from equipment setup to measurement - Equipped with a 10m large anechoic chamber and a shielded room *For more details, please refer to the PDF document or feel free to contact us.

• EMC/Static electricity measuring equipment

We would like to introduce the "Noise Measurement, Diagnosis, and Countermeasures" provided by Shōshin Electric. At the "Asama Test Lab," we are equipped with a 10m method large electromagnetic wave anechoic chamber and a shielded room. On-site testing (EMC testing at the customer's location) is also possible. Additionally, in our "CE Marking Compliance Support Services," we also provide assistance with the Low Voltage Directive and Machinery Directive, in addition to the EMC Directive. Please feel free to contact us when you need our services. 【Emission Testing for Industrial Equipment, Information Processing Equipment, and Home Appliances】 <Testing Items> ■ Power Terminal Interference Voltage ■ Radiated Electric Field Strength ■ Noise Interference Power ■ Harmonic Current Interference ■ Voltage Fluctuation (Flicker) Interference (for rated current of 16A or less) *We plan to expand our on-site testing team to seven teams, allowing for speedy responses. *For more details, please refer to the PDF materials or feel free to contact us.

• Contract measurement

The "Noise Filter" we handle has a proven track record in various fields such as industrial equipment, communication equipment, and medical applications. It is compliant with RoHS. Designs tailored to customer specifications are also possible. In addition, we offer a wide range of products, including "Reactor Cores," which are effective for simple countermeasures against conducted and radiated noise, and "Surge Absorbers," which allow for easy maintenance by visually indicating the product replacement timing. 【Product Lineup (Excerpt)】 ■ Single-phase 2-wire type - Single coil: NF2000A-SUM, NF2000A-UP - Double coil: HF2000A-UP, HF2000A-UPF ■ Three-phase 3-wire type - Single coil: NF3000C-DxA, NF3000C-YXS - Double coil: HF3000C-YXS, HF3000C-SZL *For more details, please refer to the PDF document or feel free to contact us.

• filter

A wide lineup of film capacitors for power electronics that support high frequency and high current. ■ Capable of handling low capacitance (nF) to large capacitance (μF) ■ Usable up to high frequencies with a low inductance structure ■ Low loss with minimal self-heating ■ High ripple current tolerance per capacitance allows for miniaturization ■ Long lifespan due to the use of metallized polypropylene film as the dielectric <Snubber Capacitors> - Extensive market experience as a pioneer in snubber technology - High surge absorption performance and capability to handle large surge currents due to low inductance design <Resonant Capacitors> - Achieves low heat generation even at high frequencies with a unique low loss design - The decisive factor for adoption by various companies is "low heat generation!" <DC Intermediate Capacitors> - Achieves low capacitance (nF) to medium capacitance (μF) with a low inductance structure * Customization is available. For more details, please refer to the PDF document or feel free to contact us.

• Capacitor

We would like to introduce the "Layered Dielectric Filter" handled by Shōshin Electric. Thanks to our unique dielectric materials and laminated structure, it is compact and high-performance. We have a wide range of products available, including "HMD0108N," "HMD0109N," "MDR746F," "DBF81F001," and "DBF81F002." By combining our proprietary ceramic materials, printed lamination methods, and high-frequency circuit design technology, we provide solutions suitable for wireless communication systems. 【Product Lineup (Excerpt)】 ■HMD0108N ■HMD0109N ■HMD6130L ■HMD6131L ■HMD9116T *For more details, please refer to the PDF document or feel free to contact us.

• filter

The "thick film printed circuit boards" we handle utilize various technologies based on the properties of alumina ceramics, providing "heat resistance" and "high reliability" to meet customer needs. We comply with RoHS and lead-free standards, and can perform through-hole filling printing from Φ0.15mm. Additionally, we can achieve selective layouts based on conductor characteristics, focusing on bonding properties or migration resistance. 【Features】 ■ Capable of printing conductors made of silver-palladium, silver-platinum, silver, and copper, which excel in heat resistance. ■ Gold plating is available for terminal electrode solder joints, offering excellent migration resistance (high migration-resistant material). ■ Compliant with RoHS and lead-free standards. ■ Various resistors can be formed through printing methods. *For more details, please refer to the PDF document or feel free to contact us.

• Printed Circuit Board

We would like to introduce our "LC Filters / Semi-Coaxial Dielectric Filters." In the "Semi-Coaxial Dielectric Filter," we offer a lineup that includes the "RF Band Pass Filter," which achieves low loss and high attenuation, a "Delay Line" capable of up to 12ns of delay, and a "Variable Delay Line" with low loss and minimal phase change. Additionally, in the "LC Filter" category, we provide filters for communication and broadcasting video applications. 【Features】 ■ RF Band Pass Filter - Achieves low loss and high attenuation, customizable options available ■ Delay Line - Low loss, capable of up to 12ns of delay *For more details, please refer to the PDF document or feel free to contact us.

• filter

We would like to introduce the "Mica Capacitors" handled by Shōshin Electric. The "Chip Mica Capacitor" has a high Q factor, low ESR, and excellent high-frequency characteristics, making it suitable for high-frequency power supplies and power amplifiers in radio equipment. It boasts high reliability with a small temperature coefficient and minimal aging changes. Additionally, the "Dipped Mica Capacitor" is the standard product for general industrial mica capacitors, offering a wide variety of sizes and capacitance values.

• Capacitor

This document provides a detailed introduction to effective EMC emission countermeasures that do not fail. It clearly presents information using diagrams and tables, covering topics such as "representative standards," "selection of noise filters," and "wiring precautions." Please feel free to download and take a look. 【Contents】 ■EMC emission countermeasures ■Representative standards ■Countermeasures for power terminal interference voltage (conducted noise) (150k 30MHz) ■Key points for inverter noise countermeasures ■Selection of noise filters *For more details, please refer to the PDF document or feel free to contact us.

• EMC countermeasure products