Australian Resistors – Supplier of Wire Wound Resistors and Power Resistors

Need A Reliable Supplier Of Rheostats?

Having served the Australian electronics and maunufacturing industry with power resistors for over 50 years we have seen just about every requirement and application for Rheostats and have supplied literally thousands of rheostats to customers over that period.

APR Series Rheostats At A Glance:

The standard range of APR rheostats is available in 3 wattages:

25 watt
50 watt
150 watt

Built on a ceramic former they are robust, compact in size and offer excellent heat dissipation properties. They are available with 2 types of termination: Solder and 6.3mm quick connect terminals.

Full Specifications:

In addition to the above wattage rheostats we can also supply […]

Potentiometer and Rheostat Differences

We sometimes receive enquiries for potentiometers and rheostats that indicate there is some confusion between terminology surrounding potentiometers and rheostats. fundamentally there is little difference between the two. They both have the following characteristics:

Allow for variable and continuous adjustment of a specified resistance value
Allow for adjustment via a rotary shaft
Are mounted (generally) via a bush mounting system
Have similar temperature derating curves
Both offer solder or quick connect termination options
Both have a specified angle of rotation
Both have a wiper in totational contact with a resistance element

As we can see from the photographs below, there are physical similarities between the two (potentiometers and […]