Riedon™ products by Bourns Bourns Inc.

Aluminum-Housed Power Wirewound Resistors – UAL Series

This wirewound design from Riedon™ products by Bourns is designed for direct heatsink mounting with compound to give maximum performance in heated conditions

Image of Riedon's Aluminum-Housed Power Wirewound ResistorsThe robust UAL series from Riedon™ products by Bourns utilizes wirewound resistor technology in a large ceramic core molded into an extruded aluminum chassis-mount housing. The wirewound design maximizes pulse handling capability, while the aluminum housing provides superior heat conduction and resistance to very tough environmental conditions.

The UAL series is available in 7.5 W to 50 W sizes with low ±1% tolerances and resistances from 0.1 Ohms to 100 kOhms. Higher power ratings up to 300 W are available.

Applications
  • Industrial controls
  • Power supplies
  • Welding equipment
  • Motor controls and drives
  • Medical equipment
  • Audio applications

Aluminum-Housed Power Wirewound Resistors

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
RES CHAS MNT 7.5 OHM 1% 25WUAL25-7R5F8RES CHAS MNT 7.5 OHM 1% 25W2879 - Immediate$5.41View Details
RES CHAS MNT 100K OHM 1% 50WUAL50-100KF8RES CHAS MNT 100K OHM 1% 50W812 - Immediate$6.98View Details
RES CHAS MNT 200 OHM 1% 50WUAL50-200RF8RES CHAS MNT 200 OHM 1% 50W369 - Immediate$7.29View Details
RES CHAS MNT 33 OHM 1% 10WUAL10-33RF8RES CHAS MNT 33 OHM 1% 10W377 - Immediate$4.15View Details
RES CHAS MNT 300 OHM 1% 10WUAL10-300RF8RES CHAS MNT 300 OHM 1% 10W132 - Immediate$4.15View Details
RES CHAS MNT 2.5 OHM 1% 25WUAL25-2R5F8RES CHAS MNT 2.5 OHM 1% 25W463 - Immediate$4.46View Details
RES CHAS MNT 50 OHM 1% 10WUAL10-50RF8RES CHAS MNT 50 OHM 1% 10W462 - Immediate$4.81View Details
RES CHAS MNT 10K OHM 1% 10WUAL10-10KF8RES CHAS MNT 10K OHM 1% 10W448 - Immediate$4.81View Details
RES CHAS MNT 1K OHM 1% 10WUAL10-1KF8RES CHAS MNT 1K OHM 1% 10W427 - Immediate$4.81View Details
RES CHAS MNT 10 OHM 1% 10WUAL10-10RF8RES CHAS MNT 10 OHM 1% 10W393 - Immediate$4.81View Details
RES CHAS MNT 15 OHM 1% 10WUAL10-15RF8RES CHAS MNT 15 OHM 1% 10W341 - Immediate$4.81View Details
RES CHAS MNT 2K OHM 1% 10WUAL10-2KF8RES CHAS MNT 2K OHM 1% 10W208 - Immediate$4.81View Details
RES CHAS MNT 100 OHM 1% 10WUAL10-100RF8RES CHAS MNT 100 OHM 1% 10W179 - Immediate$4.81View Details
RES CHAS MNT 15K OHM 1% 10WUAL10-15KF8RES CHAS MNT 15K OHM 1% 10W382 - Immediate$4.82View Details
RES CHAS MNT 5K OHM 1% 50WUAL50-5KF8RES CHAS MNT 5K OHM 1% 50W1267 - Immediate$5.01View Details
RES CHAS MNT 2 OHM 1% 50WUAL50-2RF8RES CHAS MNT 2 OHM 1% 50W373 - Immediate$5.01View Details
RES CHAS MNT 0.1 OHM 1% 10WUAL10-0R1F8RES CHAS MNT 0.1 OHM 1% 10W445 - Immediate$5.29View Details
RES CHAS MNT 5K OHM 1% 25WUAL25-5KF8RES CHAS MNT 5K OHM 1% 25W966 - Immediate$5.41View Details
RES CHAS MNT 0.1 OHM 1% 25WUAL25-0R1F8RES CHAS MNT 0.1 OHM 1% 25W865 - Immediate$5.41View Details
RES CHAS MNT 0.5 OHM 1% 25WUAL25-0R5F8RES CHAS MNT 0.5 OHM 1% 25W705 - Immediate$5.41View Details
Updated: 2025-02-11
Published: 2013-07-15

Related Product Highlight

High-Pulse Wirewound Resistors The Riedon™ products by Bourns line of high-performance power resistors includes components with improved pulse and surge performance.

Related Articles and Blogs

Resistors and Color Codes: Big Boys Race Our Young Girls but Violet Generally Wins Learn the basics of resistors and how to determine resistor values using the electronic color code.
Power Rating is Just One Resistor Parameter to Consider This article looks at resistor characteristics and parameters and how these are affected by particular manufacturing technologies.

Related Product Training Modules

LED Lighting and Resistor Review LED operation and biasing requirements. The correct method of LED application considerations for selection are also discussed.