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Specifications
Type:
Fuse Resistor
Resistance:
51Ω
Voltage-Supply(Max):
250V
Power(Watts):
1W
Temperature Coefficient:
±300ppm/℃
Tolerance:
±5%
Mfr. Part #:
RFB01J51R0A520SC
Package:
Through Hole,D4.3xL11mm
Key Attributes
Model Number:
RFB01J51R0A520SC
Product Description
Product Overview
This document details a range of resistors manufactured by Futaba Electric Co., Ltd. (Taiwan). The product line includes various types of resistors such as 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, Power Wire Wound Resistors, Zero Ohm Resistors, Low Resistance Resistors, Power Chip Resistors, Metal Plate Cement Resistors, and High Pulse Wire Wound Resistors. These components are designed for a wide array of electronic applications, emphasizing reliability, safety features like flameproof coatings, and compliance with international standards such as RoHS.
Product Attributes
- Brand: Futaba
- Origin: Taiwan (Manufacturing facilities also in China)
- 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.
- Safety Features: Flameproof and insulating coatings (UL94 V-0), non-flammable silicon-base.
- Environmental Compliance: EU-RoHS compliant, Lead-Free products implemented (2003), Halogen-Free products implemented (2008).
Technical Specifications
| Product Type | Model Series | Key Features | Reference Standards | Available Power Ratings | Resistance Range | Tolerance | Temperature Coefficient | Max. Working Voltage | Max. Overload Voltage | Dielectric Withstanding Voltage | Dimensions (mm) | Packaging Options |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Metal Oxide Film Resistor | RSU, RSS, RSP | Flameproof, insulating, small size, high reliability, low surface temperature rise. | JIS C 5201-1 | 1/4W to 3W | 0.1 to 910K | 1%, 2%, 5% | 100ppm/C, 200ppm/C, 350ppm/C | 250V to 500V | 500V to 1000V | 250V to 500V | L: 6.0 to 25, L1: 7 to 28, D: 2.4 to 8.5, d: 0.6 to 8.5 | Taping/Ammo, Forming/Bulk pack |
| Fixed Metal Film Resistor | RNU, RNS | High precision, low T.C.R., excellent long-term stability, suitable for automatic insertion. | JIS C 5201-1 | 1/8W to 3W | 10 to 1M | 1%, 2%, 5% | 100ppm/C | 200V to 350V | 400V to 700V | 300V to 500V | L: 3.5 to 16, L1: 5 to 18, D: 1.7 to 5.5, d: 0.45 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| Metal Film Precision Resistor | RPU, RPS | High precision, low T.C.R., resistance tolerance 0.01%, excellent long-term stability. | JIS C 5201-1 | 1/8W to 2W | 10 to 100K | 0.01%, 0.02%, 0.05%, 0.1%, 0.5%, 1%, 2%, 5% | 100ppm/C | 200V to 350V | 250V to 700V | 300V to 700V | L: 3.5 to 16, L1: 5 to 18, D: 1.7 to 5.5, d: 0.45 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| Metal Glaze Resistor | RMU, RMS, RMH | Flameproof and insulating coating (UL94 V-0), suitable for high voltage applications. | JIS C 5201-1, UL 1676 & c-UL, EN 60065 | 1/6W to 2W | 10 to 100M | 1%, 2%, 5% | 100ppm/C, 200ppm/C | 160V to 350V | N/A | 700V to 10000V | L: 3.3 to 16, L1: 4 to 18, D: 1.8 to 5.5, d: 0.45 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| Surge Resistor | RVU, RVS | High resistance range (680K~3G), stable, long service life, withstands 10KV pulse, small temperature coefficient. | JIS C 5201-1 | 1/2W to 2W | 680K to 3G | 5% | 200ppm/C | 3500V to 10000V | 700V | N/A | L: 9 to 16, L1: 11 to 18, D: 3.3 to 5.5, d: 0.6 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| High Resistance Resistor | RRU, RRS | Resistance range 101M~3G, low T.C.R. (down to 50ppm), long load life and stability. | JIS C 5201-1 | 1/6W to 5W | 100M to 3G | 1%, 2%, 5% | 200ppm/C (50ppm/C available) | 500V to 15000V | 700V to 15000V | N/A | L: 3.3 to 25, L1: 4 to 28, D: 1.8 to 8.5, d: 0.45 to 0.5 | Taping/Ammo, Forming/Bulk pack |
| Fusible Resistor | RFU, RFS | Functions as a resistor normally, quick fusing under overload, flameproof coating. | JIS C 5201-1 | 1/6W to 2W | 0.1 to 1K | 5% | 350ppm/C | 100V to 350V | 150V to 500V | 200V to 300V | L: 3.3 to 16, L1: 4 to 18, D: 1.7 to 5.5, d: 0.45 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| Rated Current Fusible Resistor | RFA | Combines time delay performance with reliability, flameproof coating. | JIS C 5201-1 | N/A (Rated Current specified) | N/A (Resistance Range not specified) | 1%, 2%, 5% | 350ppm/C | N/A | N/A | 100V to 200V | L: 6.0 to 9.0, L1: 7 to 11, D: 2.4 to 3.0, d: 0.6 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| Heat Energy Surge Wire Wound Fusible Resistor | WFU, WFS | Reliable fusing behavior, stable performance, endurance to surge voltage, flameproof coating. | JIS C 5201-1 | S1/2W to 2W | 0.1 to 150 | 5% | 500ppm/C (1), 300ppm/C (>1) | 100V to 500V | 150V to 1000V | 100V to 1000V | L: 6.0 to 16, L1: 7 to 18, D: 2.4 to 5.5, d: 0.6 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| Non-Smoke Thermal Fuse Resistor | RFT | Safety design of non-flammability and insulation, can be produced according to customer's request. | JIS C 5201-1, UL 1412 | 3W to 10W | 0.1 to 1K | 1%, 2%, 5%, 10% | 350ppm/C | AC 250V | N/A | 1000V | Dimensions vary by power rating (e.g., H: 5 to 12, W: 20 to 35, P: 5 to 7) | Bulk pack |
| Anti-Burst Fusible Resistor | RFB, RFF | Safe fusing characteristics without bursting, reliable performance, endurance to surge voltage. | JIS C 5201-1, UL 1412 | 1/4W to 3W | 0.1 to 100 | 5% | 500ppm/C (1), 300ppm/C (>1) | 100V to 250V | 150V to 500V | 1500V to 2000V | L: 6.6 to 17, L1: 10 to 20, D: 3.6 to 7.0, d: 0.6 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| 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 | P1 (0.1W) to 10W | 0.05 to 15K | 1%, 2%, 5%, 10%, 20% | 500ppm/C (1), 300ppm/C (>1) | 250V to 500V | 500V to 1000V | 1000V to 1500V | L: 6.0 to 44MAX, L1: 7 to 46MAX, D: 2.4 to 8.5, d: 0.6 to 0.8 | Taping/Ammo, Forming/Bulk pack |
| Non-Inductive Resistor | NWU, NMU, NWS, NMS, NWP, NMP, NVU, NVS, NVP | Flameproof coating (UL94 V-0), small size, ultra-low inductance (<3H at 1KHz). | JIS C 5201-1 | P1 (0.1W) to 10W | NW (Wire): 2 to 12M; NM/NV (Film): 10 to 3G | 2%, 5%, 10% | 500ppm/C (1), 350ppm/C (300), 200ppm/C (>300) | 350V to 1500V | 500V to 10000V | N/A | L: 6.0 to 401, L1: 7 to 42, D: 2.4 to 8.5, d: 0.6 to 0.8 | Taping/Ammo pack |
| Metal Plate Cement Resistor | MPC, MPH | Non-flammable, insulating, low resistance, resilient to surge current, non-inductive. | JIS C 5201-1 | 1W to 10W (MPC), 4W (MPH) | 0.01 to 3.3 (MPC), 0.1 to 33 (MPH) | 1%, 2%, 5%, 10% | 100ppm/C to 350ppm/C | 500V | N/A | N/A | Dimensions vary by model (e.g., A: 8.0 to 21, B: 10 to 26, C: 4 to 5, d: 0.6 to 0.8) | Bulk pack |
| Metal Plate Cement Resistor | MPM | Non-flammable, insulating, low resistance, resilient to surge current, suitable for current sensor applications, non-inductive. | JIS C 5201-1 | 4W to 7W | 0.005 to 100M | 1%, 5%, 10% | 25ppm/C to 350ppm/C | 500V | N/A | N/A | Dimensions vary by model (e.g., A: 18 to 32, B: 15, C: 2.0 to 3(MAX), d: 0.60) | Bulk pack |
| Metal Plate Cement Resistor | MPT, MPQ | Non-flammable, insulating, low resistance, resilient to surge current, non-inductive. | JIS C 5201-1 | 3W (MPT), 5W (MPQ) | 36 to 100M (MPT), 0.01 to 0.5 (MPQ) | 1%, 2%, 5%, 10% | 350ppm/C | 500V | N/A | N/A | Dimensions: MPT (L: 15, W: 13, h: 0.7), MPQ (L: 16, W: 16, h: 6.0) | Plate/Bulk pack |
| Cement Resistor | RGW, RGF | Non-flammable, insulating, low inductance available, stable long life. | JIS C 5201-1 | 1W to 40W | 0.1 to 330 (Film), 0.1 to 10K (Wire wound) | 1%, 2%, 5%, 10% | 600ppm/C (1), 350ppm/C (>1) | 150V to 1000V | 500V to 1500V | 1000V | Dimensions vary by power rating and type (e.g., L: 14 to 60, W: 6.5 to 14, H: 6.5 to 13.5, d: 0.6 to 0.8) | Bulk pack |
| High Insulation Cement Resistor | RGK | Non-flammable, insulating, low inductance available, stable long life. | JIS C 5201-1 | 4W to 17W | 0.01 to 82K | 1%, 2%, 5%, 10% | 350ppm/C | 1000V to 2000V | 2000V to 2000V | N/A | Dimensions vary by power rating (e.g., W: 6.8 to 9.5, H: 6.8 to 9.0, L: 25 to 75) | Bulk pack |
| Current Sensor Resistor | RGC | Non-flammable, insulating, low inductance available, stable long life. | JIS C 5201-1 | 1W to 20W | 1m to 100m | 1%, 2%, 5%, 10% | 20ppm/C to 100ppm/C | 2000V | N/A | N/A | Dimensions vary by power rating (e.g., L: 11.5 to 42, L1: 15 to 46, D: 4.3 to 10, d: 0.6 to 0.8) | Bulk pack |
| High Pulse Wire Wound Resistor | HVW | Anti-burst wire wound, acceptable pulse of 25KV discharge, high reliability. | JIS C 5201-1 | 1W to 5W | 10 to 390K | 5%, 10%, 20% | 300ppm/C | 300V to 550V | 600V to 1000V | 15KV to 25KV (Pulse Voltage) | L: 14 to 43, L1: 18 to 48, D: 5 to 7, d: 0.8 | Bulk pack |
| Aluminum Cased Power Resistor | GRR | High stability, strong construction, anti-surge to 20KV, customizable. | MIL-STD-202 Method 204 | 5W to 300W | 0.02 to 1G | 1%, 2%, 5%, 10% | 25ppm/C to 350ppm/C | 1000V to 1500V | N/A | Dimensions vary significantly by power rating (e.g., A: 11.5 to 150, B: 12.5 to 150, C: 15.5 to 150) | Strip (pcs) | |
| Flat Type Metal Clad Wire Wound Resistor | GHR | High power rating, ultra precision, customizable. | N/A | 60W to 500W | 0.05 to 10K | 5% | 350ppm/C | 500V to 1000V | 1500V/DC | Dimensions vary by power rating (e.g., L1: 70 to 310, L2: 80 to 310, W1: 70 to 310, W2: 70 to 310) | N/A | |
| Square Shape Aluminum Shell Resistor | RAR | High power rating, ultra precision, customizable. | N/A | 60W to 800W | 0.001 to 30K | 5% | 350ppm/C | 1000V | AC 1500V | Dimensions vary by power rating (e.g., L1: 50 to 560, L2: 75 to 600) | N/A | |
| Trapezoid Aluminum Shell Resistor | RAMH | High power rating, ultra precision, customizable (size, power, inductance). | N/A | 60W to 1000W | 0.001 to 30K | 5% | 350ppm/C | 1000V | AC 1500V | Dimensions vary by power rating (e.g., L1: 50 to 530, L2: 80 to 560, P: 62 to 542) | N/A | |
| Power Wire Wound Resistor | RQR | Fixed, non-inductive, adjustable types available, anti-burst wire wound, acceptable pulse of 25KV discharge, high reliability. | JIS C 5201-1 | 10W to 2000W | 1 to 500K | 5%, 10% | 350ppm/C | 750V to 1500V | N/A | N/A | Dimensions vary significantly by power rating (e.g., L: 45 to 650, D: 12 to 65) | N/A |
| Coated Insulated Zero Ohm Resistor | RZU, RZS, RZY, RZT | Automatic insertion applicable, excellent long-term stability, flameproof coating (RZU). | JIS C 5201-1 | 1/6W to 1/2W | <20m (RZU, RZY), <5m (RZT) | N/A | N/A | 300V to 500V | N/A | N/A | L: 3.3 to 9, L1: 4 to 11.1, D: 1.8 to 3.0, d: 0.45 to 0.6 | Taping/Ammo, Forming/Bulk pack |
| Low Resistance Resistor | STR | Small size, light weight, excellent soldering performance, customizable. | JIS C 5201-1 | N/A (Current Rating specified) | 1m to 300m | 1%, 3%, 5% | 50ppm/C to 300ppm/C | N/A | N/A | -55C to 150C | N/A | |
| Low Resistance Resistor | LRR | Small size, light weight, excellent soldering performance, customizable. | JIS C 5201-1 | N/A (Current Rating specified) | 3m to 200m | 1%, 2%, 3%, 5%, 10% | 50ppm/C to 200ppm/C | N/A | N/A | -55 to 200 | N/A | |
| Power Chip Resistor | MR | High stability film or metal plate resistance elements, low inductance (<50nH), available in 20W to 50W. | MIL-STD-202 Method 204 | 20W to 50W | 0.01 to 51K | 1%, 5% | 150ppm/C, 200ppm/C | 500V | N/A | N/A | Dimensions vary by power rating (e.g., A: 10.1 to 14.5, B: 15 to 15, C: 4.5 to 6.0) | Strip (pcs) |
Appendix: Forming and Taping Options
Detailed diagrams and dimensions for various forming styles (L, C, FA5, FB5, FC5, FD5, M, D, Y, YT, FT) and taping options (A52, A64, A73) are provided for different resistor series. Specific dimensions and suitability vary by resistor type and power rating.
Appendix: Resistance Tolerance / Basic Value E24 & E96
Information on resistance tolerance symbols (V, L, U, A, B, C, D, F, G, J, K, M) and significant figures for nominal resistance values (E12, E24, E96) is available.
Appendix: Resistor Loading Calculation and Surge Test Method
Methodologies for calculating energy for single pulses (capacitor energy, triangle wave, sine wave, rectangle wave), power rate, temperature effects, loading ratio (continuous and impulse), and surge test circuits are outlined.
2410121236_Futaba-Elec-RFB01J51R0A520SC_C275022.pdf
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