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 Watts. The coating material meets UL 94V-0 requirements, ensuring safety and reliability. Ideal for smart meters, renewable energy systems, industrial equipment, power supplies, chargers, lighting, instruments, gauges, and white goods, this series provides stable electrical characteristics and environmental resistance.
Product Attributes
- Product Series: W Series
- Type: Wirewound Power Resistor
- Certifications: RoHS compliant* (Directive 2015/863, Mar 31, 2015 and Annex)
- Coating Material: Meets UL 94V-0 requirements
- Lead Wire Material: Tin-plated copper wire
- Core Material: Low thermal resistant ceramic core
- Non-inductive version: Available upon request
Technical Specifications
| Specification | Details |
|---|---|
| Resistance Range | See Popular Resistance Values Table (Other E24 values available upon request) |
| Tolerance | 5 % |
| Operating Temperature | -55 C to +200 C |
| Temperature Coefficient | 300 ppm/C |
| Maximum Voltage | P*R |
| Short Time Overload (2.5x rated voltage for 5 sec) | R/R(2 % 0.05 ) |
| Solderability (245 3 C for 2.5 0.5 sec) | Over 95 % coverage |
| Resistance to Solder Heat (260 5 C for 10 1 sec) | R/R(1 % + 0.05 ) |
| Dielectric Strength (>500 Vrms for >1 min) | Pass |
| Insulation Resistance (>500 Vrms for >1 min) | >109 |
| Load Life Humidity (1.5 hrs ON, 0.5 hrs OFF for 1000 hrs at rated power, 40 2 C, 90-95%) | R/R (5 % + 0.05 ) |
| Load Life (1.5 hrs ON, 0.5 hrs OFF for 1000 hrs at rated power, 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 |
Dimensions (MM/INCHES)
| Model | L | D | W | T (DIA.) |
|---|---|---|---|---|
| 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) |
How to Order
W (Product Series) 3 (Power Rating) M (Pin Style) 22R0 (Resistance Code) J (Resistance Tolerance)
- Power Rating: 1, 2, 3, 5, 7, 9, 10 Watts
- Pin Style: M = Axial Miniaturized Version
- Resistance Code: R<100 ohms: R represents decimal point (e.g., 56R0 = 56 ohms); R100 ohms: First three digits are significant, fourth digit is number of zeros (e.g., 1500 = 150 ohms)
- Resistance Tolerance: J = 5 %
Legal Disclaimer
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 on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
2411041600_BOURNS-W5M22R0J_C6325990.pdf
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