Resistor > Aluminium Housed Resistor AHR

Aluminium Housed Resistor AHR

Also known as Aluminium Housed chassis mounted wire wound resistor
Heavy-duty with improved heat convection design – maximise the pulse power dissipation in a compact size.
A strong connection lead at both ends – good for pulse current handing.

Aluminium Housed Resistor Applications – Braking Resistors, Gate Resistors, Dumping Resistors for Motor Controls, Rush Current protections, Snubber Resistors for snubber circuits (Low Inductance type)
AHR : 5W – 1000W
AHRN : Low Inductance type

This resistor series uses high quality nickel copper or nickel chromium resistance wire and wires onto a ceramic core, fitted into an anodized heatsink and then end sealed with high temperature moulding compound.
With strong leads, which are suitable for pulse current handling
As Snubber Resistors in snubber circuits
Suitable for high pulse /surge power and current dissipation applications. Please state your application conditions.
Suitable for industrial machines and equipment
Durable and can withstand stronger vibration, moisture and solvent
Improved heat conduction and convection designs
For low ohmic values, please state the resistance, working voltage and loading duration or number of pulses per sec/min. Different voltages can cause different loading currents.
Support precision resistance tolerance
Support low temperature coefficient
Support low Inductance requirement – the medium frequency resistors and snubber resistors.
Customizable connection and mounting

MFPR supports Aluminium Housed Resistors with various specifications for different applications.
Similar circuit designs can have very different resistor electrical and mechanical profile requirements. Please feel free to send your application details to us for a resistor suggestion and quotation.
There are more resistor application suggestions on the Technical Consideration page.
Our average production lead time is about 1 – 2 weeks, depending on order quantity, material and production status.
Accept small, bulk quantity orders and PayPal.

Aluminium Housed Resistor – power range and sizes :

Aluminium Housed Resistors AHR 25W drawing

Power Watt Dimensions in mm Weight gram
A B C D E F G H J K L
5W 11.2 12.5 15.2 28.5 16.5 8.0 1.7 1.2 3.8 7.0 2.2 3
10W 14.3 15.8 19.5 35.0 20.3 10.0 1.9 2.0 4.2 8.0 2.2 11
25W 18.3 19.8 27.5 49.0 27.4 14.0 2.2 2.0 6.0 11.0 3.2 18
50W 40.0 21.5 50.0 72.0 29.2 15.5 2.2 2.0 6.0 11.0 3.2 30

Aluminium Housed Resistors AHR 500W drawing

Power Watt Dimensions in mm Weight gram
A B C D E E1 F G H J K L
75W 23.5 38.0 65.5 105 48 27 26 3.3 2.8 11.5 20 4.2 90
100W 36.5 38.0 98.0 138 48 27 26 3.3 2.8 11.5 20 4.2 160
150W 52.0 38.0 135.0 175 48 27 26 3.3 2.8 11.5 20 4.2 240
200W 70.0 38.0 165.0 205 48 27 26 3.3 2.8 11.5 20 4.2 420
250W 45.5 58.0 112.0 152 73 46.5 45 5.0 6.0 21.0 20 5.3 480
300W 51.5 58.0 130.0 170 73 46.5 45 5.0 6.0 21.0 20 5.3 580
500W 87.0 58.0 204.0 244 73 46.5 45 5.0 6.0 21.0 20 5.3 970
1000W 150.0 58.0 300.0 344 73 46.5 45 5.0 6.0 21.0 20 5.3 1500

Other similar metal clad power resistors and smaller wire wound resistors