Wirewound power resistor BOURNS W5M1200J with low thermal resistant ceramic core and RoHS compliance
Product Overview
The W Series Wirewound Power Resistor is designed for high-power applications, featuring a low thermal resistant ceramic core and E24 resistance values. These RoHS compliant resistors are available in a wide power range from 1 to 10 W, with a coating material that meets UL 94V-0 requirements. They are suitable for diverse applications including smart meters, renewable energy systems, industrial equipment, power supplies and chargers, lighting, instruments, gauges, and white goods.
Product Attributes
- Brand: Bourns
- Product Series: W Series
- Construction: Wirewound Power Resistor
- Core Material: Low thermal resistant ceramic core
- Lead Wire Material: Tin-plated copper wire
- Coating Material: Meets UL 94V-0 requirements
- Resistance Values: E24 series
- Compliance: RoHS compliant* (*RoHS Directive 2015/863, Mar 31, 2015 and Annex)
- 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, 40 2 C, 90 to 95 % Humidity. R/R (5 % + 0.05 ) |
| Load Life | 1000 hours at rated power, 1.5 hours ON, 0.5 hours OFF, 70 2 C. R/R(5 % + 0.05 ) |
Models & Packaging
| Model | Power Rating | Qty. per Box (Pcs.) | Min. Order Quantity (Pcs.) | Package Style |
|---|---|---|---|---|
| W1M | 1 Watt | 1,000 | 5,000 | Ammo Pack |
| W2M | 2 Watts | 500 | 2,000 | Ammo Pack |
| W3M | 3 Watts | 500 | 2,000 | Ammo Pack |
| W5M | 5 Watts | 500 | 2,000 | Ammo Pack |
| W7M | 7 Watts | 500 | 2,000 | Ammo Pack |
| W9M | 9 Watts | 25 / 200 | 2,000 | Bulk in Box |
| W10M | 10 Watts | 25 / 200 | 2,000 | Bulk in Box |
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.
Dimensions
| 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) |
How to Order
Format: W [Power Rating] [Pin Style] [Resistance Code] [Resistance Tolerance]
Example: W3M22R0J
- 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 %
Applications
- Smart meters
- Renewable energy
- Industrial
- Power supplies/chargers
- Lighting
- Instruments/gauges
- White goods
Additional Information
Specifications are subject to change without notice. Users should verify actual device performance in their specific applications.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.