industrial wirewound resistors

Product catalog summary

Overview

This document provides a comprehensive selector guide for Vishay's complete welded construction silicone coated wirewound resistors. It highlights product features, technical specifications, applications, and contact information for global sales and technical support.

Key Features

Wide power ratings ranging from 3 W to 375 W.
Resistance range from 0.05 Ω to 645 kΩ.
Operational temperature range from -65 °C to +350 °C.
Complete welded construction ensuring durability.
High-temperature silicone coating for enhanced thermal performance.
Excellent overload capability and operational stability.
Availability of non-inductive resistor styles.

Product Families and Specifications

The document categorizes products primarily under Vishay Dale and Vishay Milwaukee brands, each with multiple resistor models differentiated by wattage, resistance range, tolerance, and temperature coefficient of resistance (TCR).

Vishay Dale Series

HL (Tubular and Flat): Power ratings from 11 W to 130 W, resistance ranges from 0.1 Ω to 380 kΩ, tolerances ±5% or ±10%, TCR values ±30 to ±90 ppm/°C.
HLM (Miniature Flat): Power ratings 10 W to 20 W, resistance up to 71 kΩ.
HLW (Leaded): Power ratings 3 W to 20 W, resistance up to 95 kΩ.
HLZ (Ribbed): Power ratings 35 W to 375 W, resistance from 0.05 Ω to 32 Ω, tighter tolerances including ±0% available.
HLT (Tapped): Power ratings 15 W to 225 W, resistance up to 622 kΩ.
HLA (Adjustable): Power ratings 12 W to 225 W, resistance from 1 Ω to 398 kΩ.

Vishay Milwaukee Series

rBsf: Power ratings 40 W to 2000 W, resistance from 0.01 Ω to 391 Ω, tolerances ±5% or ±10%, TCR from ±20 to ±400 ppm/°C.
rDsf: Power ratings 8 W to 1150 W, resistance from 0.06 Ω to 227 kΩ.
rBsa: Power ratings 90 W to 2000 W, resistance from 0.011 Ω to 380 Ω.
rDsa: Power ratings 12 W to 1150 W, resistance from 0.27 Ω to 131 kΩ.
oVsf and oVsa (Oval): Power ratings 30 W to 95 W, resistance ranges from 1.2 Ω to 171 kΩ.

Applications

The resistors are suitable for a wide range of industrial applications including:

Grid resistors
DC/DC converters
AC/DC inverters
High-voltage bleeders
Dynamic braking
Bias supplies
Motor speed controls
Voltage divider networks
Capacitor charging/discharging regulation
Filament and voltage dropping
Electrical loads
Crowbar circuits
Current shunts

Technical Support and Compliance

Technical inquiries for Vishay Dale products: [email protected]
Technical inquiries for Vishay Milwaukee products: [email protected]
Material categorization and compliance definitions available at Vishay website.
Products and document subject to change without notice; disclaimers apply as per Vishay documentation.

Global Contact Information

Vishay provides worldwide sales and support contacts including locations in the United States, Singapore, China, Japan, Germany, France, and the United Kingdom with phone and fax numbers listed for each region.

Summary

This selector guide serves as a detailed reference for engineers and purchasers to identify appropriate Vishay silicone coated wirewound resistors based on power rating, resistance, tolerance, and application needs. The document emphasizes product robustness, thermal stability, and broad application suitability in industrial environments.

Catalog excerpts

INDUSTRIAL WIREWOUND RESISTORS Silicone Coated Resistors - Complete Welded Construction Silicone Coated Wirewound Resistors A wide range of high power ratings (3 W to 375 W) A wide resistance range (0.05 Ω to 645 kΩ) Low-/high-temperature performance (- 65 °C to + 350 °C) Complete welded construction Excellent overload capability High-temperature silicone coating Excellent stability in operation Non-inductive styles available Resources • For technical questions on Vishay Dale products contact [email protected] • For technical questions on Vishay Milwaukee products contact [email protected] • Material categorization: For definitions of compliance please see http://www.vishay.com/doc?99912 One of the World’s Largest Manufacturers of Discrete Semiconductors and Passive Components selector guide This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

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INDUSTRIAL WIREWOUND RESISTORS Silicone Coated Global Model Historical Model Resistance Range Vishay Dale HL (Tubular) Resistors - Complete Welded Construction • Grid resistors • DC/DC converters • AC/DC inverters • High-voltage bleeders • Dynamic braking • Bias supplies • Motor speed controls • Voltage divider networks • Capacitor charging/ discharging regulation • Filament dropping • Voltage dropping • Electrical loads • Crowbar circuits • Current shunts Vishay Dale HLZ (Ribbed) Vishay Dale HLW (Leaded) Vishay Dale HLM (Miniature Flat) Vishay Dale HL (Flat) This document is subject to change...

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INDUSTRIAL WIREWOUND RESISTORS Silicone Coated Global Model Historical Model Resistance Range Vishay Dale HLZ (Ribbed) Resistors - Complete Welded Construction Vishay Dale HLT (Tapped) HLT225 Vishay Dale HLA (Adjustable) • Grid resistors • DC/DC converters • AC/DC inverters • High-voltage bleeders • Dynamic braking • Bias supplies • Motor speed controls • Voltage divider networks • Capacitor charging/ discharging regulation • Filament dropping • Voltage dropping • Electrical loads • Crowbar circuits • Current shunts selector guide This document is subject to change without notice. THE PRODUCTS...

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INDUSTRIAL WIREWOUND RESISTORS Silicone Coated Global Model Historical Model Resistance Range Vishay Milwaukee RBSF Resistors - Complete Welded Construction Vishay Milwaukee RDSF • Grid resistors • DC/DC converters • AC/DC inverters • High-voltage bleeders • Dynamic braking • Bias supplies • Motor speed controls • Voltage divider networks • Capacitor charging/ discharging regulation • Filament dropping • Voltage dropping • Electrical loads • Crowbar circuits • Current shunts This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC...

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INDUSTRIAL WIREWOUND RESISTORS Silicone Coated Global Model Historical Model Resistance Range Vishay Milwaukee RDSF Resistors - Complete Welded Construction Vishay Milwaukee RBSA • Grid resistors • DC/DC converters • AC/DC inverters • High-voltage bleeders • Dynamic braking • Bias supplies • Motor speed controls • Voltage divider networks • Capacitor charging/ discharging regulation • Filament dropping • Voltage dropping • Electrical loads • Crowbar circuits • Current shunts selector guide This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT...

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INDUSTRIAL WIREWOUND RESISTORS Silicone Coated Global Model Historical Model Resistance Range Vishay Milwaukee RDSA Resistors - Complete Welded Construction selector guide Vishay Milwaukee OVSA • Grid resistors • DC/DC converters • AC/DC inverters • High-voltage bleeders • Dynamic braking • Bias supplies • Motor speed controls • Voltage divider networks • Capacitor charging/ discharging regulation • Filament dropping • Voltage dropping • Electrical loads • Crowbar circuits • Current shunts Vishay Milwaukee OVSF This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND...

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INDUSTRIAL WIREWOUND RESISTORS Resistors - Complete Welded Construction Silicone Coated Worldwide Sales Contacts The Americas United states Vishay Americas One Greenwich Place Shelton, CT 06484 United States Ph: +1-402-563-6866 Fax: +1-402-563-6296 Vishay Electronic GmbH Dr.-Felix-Zandman-Platz 1 95100 Selb Germany Ph: +49-9287-71-0 Fax: +49-9287-70435 singapore Vishay intertechnology Asia Pte Ltd. 37A Tampines Street 92 #07-00 Singapore 528886 Ph: +65-6788-6668 Fax: +65-6788-0988 Vishay S.A. 199, bd de la madelEine 06003 nice, cedex 1 France Ph: +33-4-9337-2727 Fax: +33-4-9337-2726 united kingdom...

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