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Specifications
Type:
Fuse Resistor
Resistance:
3.9Ω
Voltage-Supply(Max):
250V
Power(Watts):
500mW
Temperature Coefficient:
±350ppm/℃
Tolerance:
±5%
Mfr. Part #:
RFS12J3R90A520NH
Package:
Through Hole,D2.4xL6mm
Key Attributes
Model Number:
RFS12J3R90A520NH
Product Description
Product Overview
Futaba Electric Co., Ltd. (Taiwan) offers a comprehensive range of resistors, including Metal Oxide Film Resistors, Fixed Metal Film Resistors, Metal Film Precision Resistors, Metal Glaze Resistors, Surge Resistors, High Resistance Resistors, Fusible Resistors, Wire Wound Resistors, Ceramic Cased Resistors, Aluminum Cased Resistors, High Power Resistors, and Zero Ohm Resistors. These products are designed for high reliability, safety, and compliance with international standards such as RoHS. They find applications in various electronic circuits requiring precise resistance values, power handling capabilities, and protective functions.
Product Attributes
- Brand: Futaba
- Origin: Taiwan
- Certifications: ISO 9000:1994, ISO 9001:2000, ISO 9001:2004, ISO 14001:2004, TS 16949:2009, SONY Green Partner, UL, c-UL, EN 60065, SEMKO & CB
- Compliance: EU-RoHS, Lead-Free Products, Halogen-Free Products
Technical Specifications
| Product Type | Model Series | Key Features | Reference Standards | Construction |
|---|---|---|---|---|
| Metal Oxide Film Resistor | RSU, RSU, RSP | Flameproof and insulating coating (UL94 V-0), small size for high density, high reliability, good thermal stability, low surface temperature rise. | JIS C 5201-1 | Ceramic base, conductive film, helical cutting groove, insulation coat. |
| Fixed Metal Film Resistor | RNU, RNS | High precision, low T.C.R., excellent long-term stability, suitable for automatic insertion. | JIS C 5201-1 | Ceramic base, conductive film, helical cutting groove, insulation coat. |
| Metal Film Precision Resistor | RPU, RPS | High precision, low T.C.R., resistance tolerance 0.01%, excellent long-term stability. | JIS C 5201-1 | Ceramic base, conductive film, helical cutting groove, insulation coat. |
| Metal Glaze Resistor | RMU, RMS, RMH | Flameproof and insulating coating (UL94 V-0), suitable for discharge path applications. | JIS C 5201-1, UL 1676 & c-UL, EN 60065 | Ceramic base, metal glaze film, helical cutting groove, insulation coat. |
| Surge Resistor | RVU, RVS | High resistance range (680K~3G), stable, long service life, can withstand 10KV pulse impact, small temperature coefficient. | JIS C 5201-1 | Ceramic base, metal glaze film, helical cutting groove, insulation coat. |
| High Resistance Resistor | RRU, RRS | Resistance range 101M~3G, low T.C.R. (down to 50ppm), long-term stability, long service life. | JIS C 5201-1 | Ceramic base, metal glaze film, helical cutting groove, insulation coat. |
| Fusible Resistor | RFU, RFS | Flameproof and insulating coating (UL94 V-0), functions as a resistor in normal operation, quick fusing protects circuits from overload. | JIS C 5201-1 | Ceramic base, fusible film, helical cutting groove, insulation coat. |
| Rated Current Fusible Resistor | RFA | Flameproof and insulating coating (UL94 V-0), combines time delay performance with reliability, stable under rated current operation. | JIS C 5201-1 | Ceramic base, fusible film, helical cutting groove, insulation coat. |
| Heat Energy Surge Wire Wound Fusible Resistor | WFU, WFS | Provides high surge energy characteristics, accurate fusing performance, and high stability under rated power. | JIS C 5201-1 | Ceramic base, wire wound, insulation coat. |
| Non-Smoke Thermal Fuse Resistor | RFT | Compact type with safety design of non-flammability and insulation, can be produced according to customer requests. | JIS C 5201-1, UL 1412 | Ceramic case, resistor, thermal fuse, silicon cement. |
| Anti-Burst Fusible Resistor | RFB, RFF | Wire wound or film type, provides safe fusing characteristics without explosion, accurate fusing performance, durable high stability under rated power. | JIS C 5201-1, UL 1412 | Wire wound or film on ceramic base, insulation coat. |
| Wire Wound Resistor | RWU, RWS, RWP | Flameproof and insulating coating (UL94 V-0), small size for high density, stable long service life. | JIS C 5201-1, RWP1W Series UL1412 | Ceramic base, wire wound, insulation coat. |
| Non-Inductive Resistor | NWU, NMU, NWS, NMS, NWP, NMP, NVU, NVS, NVP | Flameproof and insulating coating (UL94 V-0), small size for high density, ultra-low inductance (<3H at 1KHz). | JIS C 5201-1 | Ceramic base, wire wound or conductive film, insulation coat. |
| Metal Plate Cement Resistor | MPC, MPH | Safety design of non-flammability and insulation, low resistance, resilient to surge current, non-inductive. | JIS C 5201-1 | Ceramic case, silicon cement, metal plate, insulation coat. |
| Metal Plate Cement Resistor | MPM | Safety design of non-flammability and insulation, low resistance, resilient to surge current, suitable for current sensor applications, non-inductive. | JIS C 5201-1 | Ceramic base, metal shell, plating layer, ceramic base, metal plate, marking, insulation coat. |
| Metal Plate Cement Resistor | MPT, MPQ | Safety design of non-flammability and insulation, low resistance, resilient to surge current, non-inductive. | JIS C 5201-1 | Silicon cement, metal plate, marking, insulation coat (MPT); Ceramic base, print impedance layer, lead wire, marking, ceramic case (MPQ). |
| Cement Resistor | RGW, RGF | Safety design of non-flammability and insulation, low inductance available, stable long life, can be produced according to customer requests. | JIS C 5201-1 | Ceramic case, wire wound/film, insulation coat. |
| High Insulation Cement Resistor | RGK | Safety design of non-flammability and insulation, low inductance available, stable long life, can be produced according to customer requests. | JIS C 5201-1 | Ceramic case, wire wound/film, insulation coat. |
| Current Sensor Resistor | RGC | Safety design of non-flammability and insulation, low inductance available, stable long life, can be produced according to customer requests. | JIS C 5201-1 | Ceramic base, wire wound, insulation coat. |
| High Pulse Wire Wound Resistor | HVW | Anti-burst wire wound type, high pulse safe usage, can withstand 25KV pulse impact, high reliability. | JIS C 5201-1 | Ceramic base, wire wound, ceramic tube, insulation coat. |
| Aluminum Cased Power Resistor | GR | High stability strong construction, anti-surge to 20KV, can be produced according to customer requests. | JIS C 5201-1 | Aluminum case, ceramic base, wire wound/film, silicon cement. |
| Flat Type Metal Clad Wire Wound Resistor | GH | High power rating, ultra precision, can be produced according to customer requests. Low inductance (1KHz: 3H). | JIS C 5201-1 | Insulation plate, wire wound, aluminum case, silicone rubber wire, ceramic base, insulation coat. |
| Square Shape Aluminum Shell Resistor | RA | High power rating, ultra precision, can be produced according to customer requests. Low inductance available. | JIS C 5201-1 | Insulation plate, wire wound, aluminum case, silicone rubber wire, ceramic tube, insulation coat. |
| Trapezoid Aluminum Shell Resistor | RAMH | High power rating, ultra precision, can be produced according to customer requests (size, power, inductance value). Low inductance available. | JIS C 5201-1 | Insulation plate, wire wound, aluminum case, silicone rubber wire, ceramic tube, insulation coat. |
| Power Wire Wound Resistor | RQ | Low inductance available, anti-burst wire wound type, high pulse safe usage, can withstand 25KV pulse impact, high reliability. | JIS C 5201-1 | Iron stand, ceramic washer, ceramic base, wire wound, insulation coat. |
| Coat-Insulated Zero Ohm Resistor | RZ (RZU, RZS, RZY, RZT) | Suitable for automatic insertion, excellent long-term stability. | JIS C 5201-1 | Ceramic base, iron core, insulation coat. |
| Low Resistance Resistor | ST | Small size and light weight, excellent soldering performance, can be produced according to customer requests. | JIS C 5201-1 | Resistive wire, solder coat, lead wire. |
| Low Resistance Resistor | LR | Small size and light weight, excellent soldering performance, can be produced according to customer requests. | JIS C 5201-1 | Resistive wire, solder coat. |
| Power Chip Resistor | MR | High stability film or metal plate resistance elements, low inductive (<50nH at 100K Hz), available in 20W, 30W, 35W, 50W. | MIL-STD-202 Method 204 | Aluminum alloy flange, alumina substrate, resistance material (RuO2 or metal plate), copper alloy lead terminal, molded resin, junction part. |
2410121236_Futaba-Elec-RFS12J3R90A520NH_C275003.pdf
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