About Potentiometers, Trimmers & Rheostats

Potentiometers, Trimmers & Rheostats

A potentiometer, trimmer, and rheostat are all three types of resistors that are adjustable. They are used to control the electric current by varying the resistance in the circuit. A potentiometer is an adjustable three-terminal resistor with a sliding contact (wiper) that moves across a resistive element to change resistance in a circuit. They are used in audio controls, light dimmers, and other applications that require adjustable resistance in the circuit. A trimmer is a miniature version of a potentiometer, and it’s used to make fine adjustments in electronics circuits. It can be used for voltage and current adjustments, and for tuning circuits for maximum performance. A rheostat is an adjustable two-terminal rotor, and it’s used to control the current in a circuit. It’s often used to control the speed of a motor or other electrical device.

Potentiometers, Trimmers & Rheostats

Potentiometer Tools & Fixings

Potentiometers

Precision Potentiometers

Rheostats

Slide Potentiometers

Trimmer Resistors - SMD

Trimmer Resistors - Through Hole

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty

RNS300

Rheostats 300watt 300ohm 1225V Std Shaft
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Ohmite

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 530.8377

Multiples of: 1

RRS50RE

Ohmite Rheostats 500watt 50ohm 1450V Std Shaft
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Ohmite

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 534.5486

Multiples of: 1

RRS750E

Rheostats 500watt 750ohm 1450V Std Shaft
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Ohmite

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 535.8171

Multiples of: 1

RT025AS2R20KB

Rheostats 38mm 25W 2.2ohm 10%
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Vishay

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 536.8164

Multiples of: 10

RGS200E

Ohmite Rheostats 75watt 200ohm 900V Std Shaft
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Ohmite

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 538.2836

Multiples of: 1

RT025AS4R70KB

4.7 Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Wirewound 25W Solder Lug
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Vishay

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 543.203

Multiples of: 1

RRS40RE

Rheostats 500watt 40ohm 1450V Std Shaft
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Ohmite

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 544.58

Multiples of: 1

7223R5KL.25FS

7223R5KL.25FS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TT Electronics

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 545.051

Multiples of: 1

RRS1R5E

Rheostats 500watt 1.5K 1450V Std Shaft
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Ohmite

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 552.0329

Multiples of: 1

RRS40R

Rheostats 500watt 40ohm 1450V Std Shaft
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Ohmite

0
6 to 16 Weeks

January 2027