Tel: 0428261110|E: sales@australianresistors.com.au

Blog

Low Profile Power Resistors – Uses and Applications

The low profile FRW Series Power Resistors are a popular choice for power resistors where mounting  space is limited. Benefits of this series are:

Vertical or Horizontal mounting
Stackable option
Efficient heat distribution
Lighweight
Excellent mechanical rigidity and abilioty to withstand vibration
Overall high power to space ratio

Currently the FRW series is available in the following wattages:

20W
30W
50W
65W
75W

The standard tolerance is 5% for 50 ohms and above and 10% below 50 ohms. Custom tolerances down to 1% are available on request. Full data here

May 5th, 2026|flat mount power resistors, Power Resistor|
Read More

January 2026 Update

Happy New Year and welcome back to our first blog post in 2026. We look forward to serving our customers with high quality products and prompt service in the year ahead.

Our Product Range In Summary:

Rheostats
Power Wirewound Resistors
Precision Wirewound Resistors
Flameproof Wirewound Resistors
Current Sensing Resistors
Adjustable Power Resistors
Low Profile Power Resistors
High Power 1000 Watt Power Resistors
Metal Clad Panel Mount Resistors

A product summary page can be found here

We welcome all enquiries and can be reached on 0428261110

January 6th, 2026|Applications, High Power Resistors, metal clad resistors, Power Resistor|
Read More

Current Sensing Resistors Available – FSR Series Resistors

Current sense resistors are widely used throughout the electronics and in particular the power control industry. Typical applications can include:

Motor control – both a.c. and d.c. Current sensing resistors are often used in motor control to sense for possible overload conditions. Automatic garage door openers will typically employ a current sense resistor to determine if the garage door has jammed and if this is the case the current sense resistor is employed to sense an abnormal increase in motor current and stop the motor for safety reasons.
Power Inverters and U.P.S.
Solar Chargers
Pump monitoring circuitry
24 Volt truck […]

May 2nd, 2025|current sense resistor, Power Resistor|
Read More

Metal Clad Resistors – Now Available Up To 1000 Watts

Metal clad resistors are commonly used in a wide range of applications, including:

Audio Amplifiers
Chasis Mount Applications
Motor Control
Power Supplies
Switch Mode Power Supplies
Industrial Controllers
Temperature Control
DC to DC Converters
Solar Inverters

As well as our standard GMR Series of metal clad resistors (which range in power rating from 5 watts to 250 watts), we are also able to offer a the high power SMRH metal clad resistor range. These are available from 60 watt rating up to 1000 watts. Available resistance values are up to 10k ohm up to 150 watt, 30k ohn up to 500 […]

April 4th, 2025|metal clad resistors, Power Resistor, Resistor Applications|
Read More

Tapped Power Resistors

There are many applications where it is necessary to have one or several “taps’ on a power resistor. This allows to have different resistance values available on a single wire wound resistor. Applications requiring tapped power resistors can include:

power supplies
inverters
industrial controllers
heating element switching
heating and ventillation
automotive
rail signalling
dummy loads
remote controlled doors

As an example, out tubular wire wound resistors can be supplied with taps as specified by the customer. There is a small reduction in the power rating since winding space is lost. Termination to the added taps is generally via standard ‘quick connect’ […]

March 5th, 2025|High Power Resistors, Power Resistor, Tapped Resistors|
Read More

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 […]

February 11th, 2025|potentiometer, Rheostat, variable resistors, wire wound potentiometer, Wire Wound Resistors|
Read More

1000 Watt Power Resistors Available In Fixed And Adjustable Resistances

The YM series 1000 watt power resistor is available as a fixed resitance and as an adjustable resistor. The resistance ranges available are as follows:

YM Series 1000 watt FIXED Resistor:  2R5 to 750 K ohm

YM Series 1000 watt Adjustable Resistor: 3R5 to 180K ohm

Mounting Specifications: M8 threaded rod, 100mm longer than resistor body. Horizontal mounting brackets are also available on request.

Physical Dimensions: 475mm ceramic length x 65mm outside diamter (approximately 69mm when coated).

Full data here.

Contact us for further details.

 

 

 

 

January 14th, 2025|1000 watt power resistors, High Power Resistors|
Read More

Power Resistor Application In High Wattage Power Supplies

We receive a large number of enquiries for power resistors for applications in a wide range of power supplies. High wattage power supplies are used in railway power converters and controllers, signalling and safety monitoring systems. The need for pulse tolerant and transient resistant resistors is especially important as the railway environment is electrically “noisy” and swtiching of high voltage transformers can create transients with voltages greater than 1KV for short periods of time (Typically microseconds).

The Y Series of Power Resistors  is suitable for applications requiring 500 Watt to 1200 Watt power rating and are especially useful in high temperature environments. […]

November 3rd, 2024|Applications, High Power Resistors, Resistor Applications, Wire Wound Resistors|
Read More

May 2021 – Metal Clad Power Resistors for Electronic Door Bells

We have had a number of  enquiries for 25-30 ohm 50 Watt power resistors for electronic door bells recently. The GMR series range of metal clad wire wound resistors offers the GMR-50W 50 watt aluminium housed resistor which suits this application due to its small physical dimensions, solid construction and excellent stability. Data can be found here

We have also introduced a high power range of aluminium housed resistors, the SMRH series. Data can be found here

June 2nd, 2021|Applications, Resistors For Door Bells|
Read More

February 2020 – Resistor Supplier Update

A new year is underway at Australian Resistors. We continue to be one of Australia’s leading suppliers of wire wound resistors, power resistors and specialist resistor products with a history of supplying resistors to the Australian manufacturing sector spanning well over fifty years.

We pride ourselves on offering expert technical advice and prompt delivery and look forward to working with you on whatever project you have. Please note our new contact phone number – 0428261110

February 20th, 2020|Uncategorized|
Read More