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Green aluminum housed resistor, cylindrical with mounting tabs, 81 x 21 x 15 mm

Unique-Bargains

Unique-Bargains 100W 4 Ohm Aluminum Wirewound Resistor

SKU CH-KHYD-X5Y6F

A 100 W, 4 Ω wire-wound resistor in an aluminium housing with screw-tap mounting for heat-sink installation

  • Key featuresScrew Tap;Wire wound Resistors;100 W Power;5% resistance tol
  • Aluminium housing dissipates heat efficiently for stable operation in demanding environments
  • 100 W power rating supports high-load circuits with 5 % tolerance for precise resistance
  • Compact 59 x 15 mm body fits tight spaces while delivering full rated performance
  • Dual 1.8 mm and 3 mm mounting holes enable flexible screw-tap installation on cooling plates
  • Rated for vibration resistance and harsh conditions, ideal for power supplies and industrial equipment

100W 4 Ohm Wirewound Resistor

This 100W 4 ohm aluminium housed resistor suits engineers and technicians who need a high power load in a compact form. The ±5% tolerance provides reliable performance for power supply and transducer circuits. The screw tap terminals allow secure wiring in industrial and automotive environments. It is not for buyers who require a lower power rating or a different resistance value.

Build quality and mounting

The green aluminium casing measures 81 x 21 x 15mm and weighs 30g, offering effective heat dissipation for cooling plate installation. Two mounting hole diameters of 1.8mm and 3mm give flexibility when securing the unit to a chassis or bracket. The wire wound construction delivers high insulating capacity and good vibration resistance for atrocious environments. It is not for builders who need a surface mount component without through holes.

Key specification

The 100W power rating with a 4 ohm resistance value is the single figure that decides fit; derate to 70% of rated power for longer service life. The ±5% (J) tolerance and standard winding type define the electrical envelope for your design. Verify the body size of 59 x 15mm and total size of 81 x 21 x 15mm against your available space. It is not for circuits that demand a non-inductive winding type as a mandatory requirement.

How it compares

Measured against everything we stock in Diagnostic Tools & RV Electronics, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 85% of the 432 comparable items (median $18.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

What is the 100 W power rating based on and how should it be derated in practice?

The 100 W rating applies when the resistor body is properly mounted to a cooling plate; the supplier notes that actual load should stay below 70 % of rated power for longer service life.

What mounting holes and overall dimensions must the chassis accommodate?

The resistor needs two holes — 1.8 mm and 3 mm diameter — and occupies 81 x 21 x 15 mm total (3.2" x 0.83" x 0.59").

How is the screw-tap connection made and what mistake should be avoided?

Wires are secured under the screw taps on the aluminum housing; the common error is over-tightening and cracking the ceramic core, so torque only to finger-tight plus a quarter turn.

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