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Two gold aluminium chassis-mount wirewound resistors 120 ohm 25W

Unique-Bargains

Unique-Bargains 25W 120 Ohm Aluminium Housing Chassis Mount Wirewound Resistors Gold 2pcs

SKU CH-XERZ-PQR32

Chassis-mount 120 Ω 25 W wirewound resistors in gold aluminium housings, 53 × 28 × 15.5 mm, 3.5 mm fixing hole, supplied as a pair

  • Key featuresCool plate Chassis Mount Aluminum Housing resistor;high powe
  • Chassis-mount design with 3.5 mm fixing holes for secure installation
  • Aluminium housing dissipates heat efficiently in harsh environments
  • 25 W power rating handles high-load circuits reliably
  • 120 Ω ±5 % wirewound element delivers stable resistance
  • Compact 53 × 28 × 15.5 mm body fits tight spaces

25 W 120 Ω wirewound resistors

These aluminium-housed wirewound resistors are rated at 25 W and 120 Ω with a ±5 % tolerance. They are built for chassis mounting in power supplies, transducers, elevator controls, arena audio gear and ring-doorbell circuits where a rugged, high-power load component is required.

Sustained-load thermal behaviour

The aluminium housing acts as a heat-dissipation plate and is designed for cooling-plate installation. This construction maintains stable resistance during continuous high-power operation and resists vibration-induced drift in harsh environments.

Chassis mounting and common issues

Each unit measures 53 × 28 × 15.5 mm with a 3.5 mm mounting hole for screw fixing. The small footprint allows dense layouts, but installers must ensure firm contact with the cooling surface and avoid over-torquing the screws to prevent ceramic core damage.

How it compares

Measured against everything we stock in Passive Components & Solder Supplies, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 70% of the 265 comparable items (median $9.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

How hot does the aluminium housing get when the 25 W rating is sustained all day?

The aluminium housing is designed for heat dissipation and can be mounted on a cooling plate to manage temperature during continuous 25 W operation.

What mounting hardware must I already have to install these chassis-mount resistors?

You need screws to fit the 3.5 mm mounting holes and a flat metal surface or cooling plate for secure chassis attachment.

Will the 120 Ω 5 % tolerance value stay stable when replacing older wirewound resistors in a ring doorbell circuit?

Yes, the 120 Ω ±5 % wirewound element maintains its value under vibration and high power, matching legacy doorbell requirements.

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