Low Thermal Resistant Ceramic Core Wirewound Resistor BOURNS W1M47R0J for Power Supply Applications

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Product Description

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 resistors are RoHS compliant and offer a wide power range from 1 to 10 Watts. The coating material meets UL 94V-0 flammability requirements, ensuring safety in demanding environments. Ideal for use in smart meters, renewable energy systems, industrial controls, power supplies, chargers, lighting, instruments, gauges, and white goods.

Product Attributes

Brand: Bourns
Product Series: W Series
Core Material: Low thermal resistant ceramic
Lead Wire Material: Tin-plated copper wire
Coating Material: Meets UL 94V-0 requirements
Compliance: RoHS compliant*
Non-inductive version: Available upon request

Technical Specifications

Specification	Details
Resistance Range	See Popular Resistance Values Table (E24 values)
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 for 5 seconds. R/R(2 % 0.05 )
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.

Model 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

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: R<100 ohms: R represents decimal point (e.g., 56R0 = 56 ohms); R100 ohms: First three digits are significant, fourth digit represents number of zeros (e.g., 1500 = 150 ohms)
Resistance Tolerance: J = 5 %

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.