Non-flammable carbon film fixed resistor "RDF/RDMF"
Non-flammable carbon film fixed resistor
【Flame Retardant UL94V-0 Compliant】RDF/RDMF Series Non-combustible Carbon Film Fixed Resistors | Balancing Equipment Safety Measures and Cost Performance
The "RDF/RDMF series" is a carbon film fixed resistor that uses a non-combustible exterior coating compliant with the flame retardant grade UL94V-0. Even in the event of overload or abnormal heating, the coating itself is difficult to ignite or glow, thereby reducing the risk of fire inside the equipment and the spread of damage to surrounding components. 【Features of RD/RDM】 • 【Flame Retardant UL94V-0 Compliant Exterior Coating】 The use of non-combustible and flame-retardant paint on the exterior reduces the risk of ignition and glowing during abnormal overheating, ensuring high safety. • 【Compact Lineup for High-Density Mounting】 In addition to standard products (RDF), a compact version (RDMF) that achieves downsizing with equivalent power is available. • 【Compliance with Environmental Regulations】 Specifications compliant with the RoHS directive, considering environmentally harmful substances. • 【Support for Various Mounting Styles】 Compatible with axial and radial taping, as well as various forming methods (kinking, vertical, horizontal, etc.), to streamline PCB insertion. • 【Wide Range of Rated Power and Resistance Values】 Rated power from 0.166W to 0.5W and resistance values from 1Ω to 5.1MΩ, suitable for various power and control circuits. *Requests for catalogs and specifications can be accessed via the URL below.
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basic information
Specifications / Specs Exterior flame resistance: Grade UL94V-0 compliant Rated power: 0.166W to 0.5W Maximum operating voltage: 200V to 350V Maximum overload voltage: 400V to 700V Resistance value range: 1 Ω to 5.1M Ω (E24 series) Resistance value tolerance: ±2% (G), ±5% (J) Dimensions: (L: Length) 3.2 +0.2/-0.0 mm to 8.5 ±0.5 mm Dimensions: (D: Diameter) 1.85 ±0.2 mm to 2.8 ±0.3 mm Lead wire diameter (ϕd): 0.45 ±0.05 mm to 0.7 ±0.05 mm Exterior color: Green (non-flammable coating) *Catalog requests, specification sheet downloads, and evaluation sample requests can be accessed via the URL above.
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Applications/Examples of results
It is mainly used in various power supply circuits and power control boards where high safety and combustion prevention are strongly required. • Power supply and power conversion equipment o Control circuits and bias circuits for the primary and secondary sides of switching power supplies o Control boards and protection-related circuits for AC adapters o Signal processing and voltage setting sections of inverter circuits • Industrial and FA control equipment o Industrial controllers, PLCs, and inverter control boards that require strict safety standards o Control power sections for various driving devices and actuators • Consumer and home appliances o Main power supply boards for various home appliances such as air conditioners, washing machines, and cooking appliances o Safety measures circuits for devices that are always powered on *Catalog requests, specification downloads, and evaluation sample requests can be accessed from the above URL.
Company information
Our company has developed as a specialized manufacturer of electronic parts, specifically resistors, in an environment overlooking the Central and Southern Alps. Since our establishment in 1960, we have upheld the management philosophy of "creating reliable, high-quality, valuable products to contribute to society," and based on our extensive experience and achievements, we manufacture and sell numerous excellent products: resistors. In the rapidly evolving electrical and electronics industry, we strive for continuous research and development, equipped with both "speed and flexibility" to adapt to the changing times.
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