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Green aluminium chassis-mount wirewound resistor, rectangular finned body with mounting tabs, 25g

Unique-Bargains

Unique-Bargains 50W 4 Ohm Aluminium Chassis Mount Wirewound Resistor Green

SKU CH-4441-10WQE

A 50 W, 4 Ω wirewound power resistor in an aluminium chassis-mount housing for heat dissipation

  • Featuresplate Chassis Mount Aluminum Housing resistor;high power loa
  • Aluminium housing dissipates heat efficiently
  • 50 W power rating handles demanding loads
  • 4 Ω ±5 % tolerance ensures precise resistance
  • Chassis-mount design with 3.5 mm fixing holes secures installation
  • Compact 49.5 × 27 × 15.5 mm body fits tight spaces

50W 4 Ohm Wirewound Resistor

This aluminium-housed wirewound resistor is rated at 50 watts and 4 ohms with a ±5% tolerance. It is designed for engineers and technicians who need a durable power resistor for industrial equipment, power supplies, or audio applications. The chassis-mount design suits fixed installations requiring reliable heat dissipation.

Aluminium Housing and Mounting Hardware

The green anodised aluminium casing measures 49.5 x 27 x 15.5 mm and includes a 3.5 mm mounting hole for screw fixation. The total length with terminals is 74.2 mm. This construction enables direct attachment to a cooling plate and provides vibration-resistant performance in harsh environments.

Verify Voltage and Thermal Requirements

Before ordering, confirm that your circuit voltage stays within the resistor's safe operating limits for a 50W rating. Ensure the mounting surface can transfer heat effectively and that the 3.5 mm hole spacing matches your chassis layout. The package contains one resistor weighing 25g.

Highlights

  • Aluminium housing dissipates heat efficiently
  • 50 W power rating handles demanding loads
  • 4 Ω ±5 % tolerance ensures precise resistance
  • Chassis-mount design with 3.5 mm fixing holes secures installation
  • Compact 49.5 × 27 × 15.5 mm body fits tight spaces

Specifications

BrandUnique Bargains
Featuresplate Chassis Mount Aluminum Housing resistor;high power load aluminum Case resistor;performance in vibration Single Fix Resistors;ring doorbell Resistors;high quality Wirewound Resistor

Questions about this item

Will the aluminium chassis and 3.5 mm mounting holes need periodic tightening under vibration?

The aluminium housing and 3.5 mm mounting holes are designed for secure chassis mounting; the supplier notes good performance in vibration, so routine retightening is not expected.

At 50 W continuous load, does the ceramic-alloy core or the aluminium case reach its thermal limit first?

The 50 W rating applies to the complete wirewound assembly mounted on a cooling plate; the aluminium case dissipates heat from the ceramic-alloy core, so the combined unit sets the thermal limit.

How hot does the green aluminium housing get when the resistor runs at 50 W all day?

With the 74.2 × 27 × 15.5 mm aluminium housing mounted on a cooling plate, the case temperature will stabilise at the level defined by the 50 W rating; forced airflow can lower it further.

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