About Optocouplers / Photocouplers

Optocouplers / Photocouplers

Optocouplers are a type of isolator that use a low-power optical signal to transmit one signal from one circuit to another independent circuit. Optocouplers are comprised of an infrared LED light source and an integrated photo detector which usually consists of a photodiode and detector circuit. This optical link or coupling provides electrical isolation between the two circuits which makes the trouble shooting and reliability of circuits more straightforward. These devices are often used to provide electrical isolation between digital signals on the same board, but they are also commonly used in medical and industrial instruments, motor control systems, and signal conditioning circuits. Optocouplers have very high input-to-output isolation voltage and low capacitance, which makes them suitable for signal transmission in high speed applications. Additionally, they manage the call back current of the circuit they are connecting, allowing them to protect against overloads.

Optocouplers / Photocouplers

High Linearity Optocouplers

High Speed Optocouplers

Logic Output Opto-couplers

MOSFET Output Optocouplers

Optically Isolated Amplifiers

Photodiode Output Optocouplers

Transistor Output Optocouplers

Triac & SCR Output Optocouplers

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

4N25SHORT-TP1F

Transistor Output Optocouplers 2500 Vrms 4N25 1011q Photocoupler 80mA
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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.

Toshiba

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
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18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3383

Multiples of: 1500

SFH617A-4XSMT&R

SMD Optocouplers - Phototransistor Output ROHS
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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.

Isocom

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
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17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3384

Multiples of: 1

ISP620-1X

Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5.3kV; DIP4
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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.

Isocom

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3385

Multiples of: 1

4N29

Transistor Output Optocouplers Optocouplers
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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.

Everlight

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
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17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3387

Multiples of: 1

TLP291(Y-TP,SE

Toshiba Transistor Output Optocouplers X36 PBF Transistor Couplr ACInput 110C
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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.

Toshiba

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3388

Multiples of: 1

AT6N138-CuH-D

4.5V~18V 1kV DC DIP-8 Logic Output Optoisolators ROHS
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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.

AOTE

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
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18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3396

Multiples of: 5

TLP785(D4GL-T6,F

Transistor Output Optocouplers 60mA Photocoupler 80V 5000Vrms
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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.

Toshiba

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
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17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3396

Multiples of: 4000

TCDT1110

Transistor Output Optocouplers Phototransistor Out Single CTR > 100%
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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

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3397

Multiples of: 1

6N137S(TA)-V

High Speed Optocouplers 10Mb High Speed DC Input
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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.

Everlight

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 0.3401

Multiples of: 1

4N33M

Transistor Output Optocouplers Optocouplers
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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.

Everlight

0
6 to 16 Weeks

April 2026