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Five green aluminium chassis-mount wirewound resistors with screw holes

Unique-Bargains

Unique-Bargains 25W 80 Ohm Aluminium Chassis Mount Wirewound Resistors Green 5pcs

SKU CH-XFQ0-TM7N3

Set of five 80 ohm 25 W aluminium-housed wirewound resistors with chassis-mount tabs for high-power heat dissipation

  • Aluminium housing dissipates heat efficiently
  • 25 W power rating handles demanding circuits
  • Chassis-mount design with 3.5 mm fixing holes ensures secure installation
  • ±5 % tolerance on 80 Ω resistance gives predictable performance
  • Pack of five resistors supports multiple builds or spares

25 W 80 Ω wirewound resistors

These 80 Ω wirewound resistors are rated for 25 W continuous power and are supplied in a pack of five. The aluminium chassis-mount housing makes them suitable for engineers, technicians and hobbyists building power supplies, transducer circuits or industrial control panels.

Aluminium housing for heat dissipation

The green anodised aluminium case measuring 27 x 16 x 15.5 mm acts as a heatsink, allowing the resistor to run at its full 25 W rating when bolted to a cooling plate. The ceramic and alloy core maintains stable resistance under vibration and in harsh environments.

Chassis mount with 3.5 mm holes

Each unit has a total length of 53 mm including mounting tabs with 3.5 mm clearance holes for screw fixing. The compact footprint frees board space while the rugged construction suits ring doorbell, elevator, arena audio and similar high-reliability equipment.

Highlights

  • Aluminium housing dissipates heat efficiently
  • 25 W power rating handles demanding circuits
  • Chassis-mount design with 3.5 mm fixing holes ensures secure installation
  • ±5 % tolerance on 80 Ω resistance gives predictable performance
  • Pack of five resistors supports multiple builds or spares

Specifications

BrandUnique Bargains

Questions about this item

How do I mount these 25 W 80 Ω wirewound resistors to a chassis and what step is often missed?

Fasten each unit through the 3.5 mm mounting hole using screws; the step often missed is applying thermal compound between the aluminium housing and the metal chassis so the 25 W rating can be met.

What maintenance or replacement will these aluminium-housed resistors need over time?

They have no moving parts; inspect periodically for discoloured ceramic or loose screw terminals and replace any unit whose resistance drifts outside the ±5 % tolerance.

What is the first limit reached when running these resistors at 25 W continuously?

The aluminium housing must transfer heat to a mounting surface large enough to keep the case temperature within specification; insufficient heatsinking is the first limit encountered.

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