Product Overview
The W Series Wirewound Power Resistor is designed for robust performance in demanding applications. Featuring a low thermal resistant ceramic core and E24 resistance values, these RoHS compliant resistors offer a wide power range from 1 to 10 W. The coating material meets UL 94V-0 requirements, ensuring safety and reliability. Ideal for use in smart meters, renewable energy systems, industrial equipment, power supplies/chargers, lighting, instruments/gauges, and white goods.
Product Attributes
- Product Series: W Series
- Type: Wirewound Power Resistor
- Core Material: Low thermal resistant ceramic
- Lead Wire Material: Tin-plated copper wire
- Coating Material: Meets UL 94V-0 requirements
- Certifications: RoHS compliant*
- Resistance Values: E24 series
- Non-inductive version: Available upon request
Technical Specifications
| Specification | Details |
| Resistance Range | See Popular Resistance Values Table |
| Tolerance | 5 % |
| Operating Temperature | -55 C to +200 C |
| Temperature Coefficient | 300 ppm/C |
| Maximum Voltage | P*R |
| Short Time Overload | 2.5 times rated voltage, R/R(2 % 0.05 ) for 5 seconds |
| Solderability | 245 3 C for 2.5 0.5 seconds. Over 95 % coverage |
| Resistance to Solder Heat | 260 5 C for 10 1 seconds. R/R(1 % + 0.05 ) |
| Dielectric Strength | Test voltage >500 Vrms for >1 minute. Pass |
| Insulation Resistance | Test voltage >500 Vrms for 1 minute. >109 |
| Load Life (Humidity) | 1000 hours at rated power (1.5 hours ON, 0.5 hours OFF) at 40 2 C, 90 to 95 % RH. R/R (5 % + 0.05 ) |
| Load Life | 1000 hours at rated power (1.5 hours ON, 0.5 hours OFF) at 70 2 C. R/R(5 % + 0.05 ) |
Packaging Specifications
| Model | Style | Qty. per Box (Pcs.) | Min. Order Quantity (Pcs.) |
| W1M | Ammo Pack | 1,000 | 5,000 |
| W2M | Ammo Pack | 500 | 2,000 |
| W3M | Ammo Pack | 500 | 2,000 |
| W5M | Ammo Pack | 500 | 2,000 |
| W7M | Ammo Pack | 500 | 2,000 |
| W9M | Bulk in Box | 25 / 200 | 2,000 |
| W10M | Bulk in Box | 25 / 200 | 2,000 |
Popular Resistance Values
| Code | R Value | Code | R Value |
| 15R0 | 15 | 56R0 | 56 |
| 22R0 | 22 | 82R0 | 82 |
| 33R0 | 33 | 1000 | 100 |
| 39R0 | 39 | 1200 | 120 |
| 47R0 | 47 | 1500 | 150 |
Other E24 resistance values available upon request.
How to Order
Format: W 3 M 22R0 J
- Product Series: W
- Power Rating: 1, 2, 3, 5, 7, 9, 10 Watts
- Pin Style: M = Axial Miniaturized Version
- Resistance Code: e.g., 22R0 = 22 ; 1500 = 150
- Resistance Tolerance: J = 5 %
Dimensions (MM/INCHES)
| Model | L (mm/in) | D (mm/in) | W (mm/in) | T (DIA.) (mm/in) |
| W1M | 9.5 1.0 (.374 .039) | 3.0 1.0 (.118 .039) | 28.0 3.0 (1.102 .118) | 0.54 0.05 (.021 .002) |
| W2M | 11.5 1.0 (.453 .039) | 4.5 1.0 (.177 .039) | 28.0 3.0 (1.102 .118) | 0.70 0.05 (.028 .002) |
| W3M | 15.5 1.0 (.610 .039) | 5.5 1.0 (.217 .039) | 28.0 3.0 (1.102 .118) | 0.70 0.05 (.028 .002) |
| W5M | 17.5 1.0 (.689 .004) | 6.5 1.0 (.256 .039) | 28.0 3.0 (1.102 .118) | 0.75 0.05 (.030 .002) |
| W7M | 24.5 1.0 (.965 .039) | 8.5 1.0 (.335 .039) | 38.0 3.0 (1.496 .118) | 0.75 0.05 (.030 .002) |
| W9M | 39.5 1.0 (1.555 .039) | 8.5 1.0 (.335 .039) | 38.0 3.0 (1.496 .118) | 0.75 0.05 (.030 .002) |
| W10M | 52.5 1.0 (2.067 .039) | 8.5 1.0 (.335 .0039) | 38.0 3.0 (1.496 .118) | 0.75 0.05 (.030 .002) |
Important Information
* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
Specifications are subject to change without notice. Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
2411041600_BOURNS-W3M47R0J_C6000588.pdf
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Robust Wirewound Power Resistor Featuring E24 Resistance Values BOURNS W3M47R0J Ideal for Renewable Energy Systems Images
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