Optocouplers/Photocouplers – Mouser United Kingdom

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Optocouplers for AC/DC Power Supplies

Isolation is critical to protect both an electronics system and the user from potentially hazardous voltages, or where a high level of electrical isolation between electronics systems is necessary. Digital isolators are known for their speed of data transmission, high level of magnetic immunity, and long life expectancy.

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Types of Optocouplers/Photocouplers

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Part #

Transistor Output Optocouplers Optocoupler Phototransistor

4N35SR2VM
onsemi
1: £0.548
6,645In Stock

Mfr. Part No.
4N35SR2VM

Mouser Part No
512-4N35SR2VM

onsemi

Transistor Output Optocouplers Optocoupler Phototransistor

Datasheet

6,645In Stock

Cut Tape

£0.548

£0.385

£0.287

£0.26

Reel

£0.237

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

6 V

SMD/SMT

SMD-DIP-6

1 Channel

NPN Phototransistor

Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4

FOD817AS
onsemi
1: £0.346
21,418In Stock

Mfr. Part No.
FOD817AS

Mouser Part No
512-FOD817AS

onsemi

Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4

Datasheet

21,418In Stock

£0.346

£0.237

£0.169

£0.142

View

Min.: 1
Mult.: 1
Max.: 2,000

6 V

18 us

50 mA

SMD/SMT

SMD-4

1 Channel

NPN Phototransistor

Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4

FOD817ASD
onsemi
1: £0.368
21,888In Stock
32,000Expected 11/09/2026

Mfr. Part No.
FOD817ASD

Mouser Part No
512-FOD817ASD

onsemi

Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4

Datasheet

21,888In Stock

32,000Expected 11/09/2026

Cut Tape

£0.368

£0.25

£0.184

£0.154

Reel

£0.123

£0.115

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,000

: 1,000

6 V

18 us

50 mA

SMD/SMT

SMD-4

1 Channel

NPN Phototransistor

Transistor Output Optocouplers Phototransistor Output

FOD817CSD
onsemi
1: £0.33
22,071In Stock

Mfr. Part No.
FOD817CSD

Mouser Part No
512-FOD817CSD

onsemi

Transistor Output Optocouplers Phototransistor Output

Datasheet

22,071In Stock

Cut Tape

£0.33

£0.226

£0.162

£0.132

Reel

£0.117

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,000

: 1,000

6 V

18 us

50 mA

SMD/SMT

SMD-4

1 Channel

NPN Phototransistor

Transistor Output Optocouplers Phototransistor Output

FOD817D3SD
onsemi
1: £0.39
18,665In Stock

Mfr. Part No.
FOD817D3SD

Mouser Part No
512-FOD817D3SD

onsemi

Transistor Output Optocouplers Phototransistor Output

Datasheet

18,665In Stock

Cut Tape

£0.39

£0.27

£0.194

£0.16

Reel

£0.132

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,000

: 1,000

6 V

18 us

50 mA

SMD/SMT

SMD-4

1 Channel

NPN Phototransistor

Transistor Output Optocouplers OPTO LIGHTING

FOD852
onsemi
1: £0.834
7,200In Stock

Mfr. Part No.
FOD852

Mouser Part No
512-FOD852

onsemi

Transistor Output Optocouplers OPTO LIGHTING

Datasheet

7,200In Stock

£0.834

£0.582

£0.429

Min.: 1
Mult.: 1
Max.: 270

6 V

300 us

150 mA

Through Hole

DIP-4

1 Channel

Photodarlington

Transistor Output Optocouplers OPTO LIGHTING

FOD852300
onsemi
1: £0.773
4,301In Stock

Mfr. Part No.
FOD852300

Mouser Part No
512-FOD852300

onsemi

Transistor Output Optocouplers OPTO LIGHTING

Datasheet

4,301In Stock

£0.773

£0.541

£0.401

Min.: 1
Mult.: 1
Max.: 210

6 V

300 us

150 mA

Through Hole

DIP-4

1 Channel

Photodarlington

Transistor Output Optocouplers OPTO LIGHTING

FOD8523SD
onsemi
1: £0.788
16,274In Stock
13,000Expected 10/11/2026

Mfr. Part No.
FOD8523SD

Mouser Part No
512-FOD8523SD

onsemi

Transistor Output Optocouplers OPTO LIGHTING

Datasheet

16,274In Stock

13,000Expected 10/11/2026

Cut Tape

£0.788

£0.544

£0.40

£0.335

Reel

£0.309

£0.292

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,000

: 1,000

6 V

300 us

150 mA

SMD/SMT

SMT-4

1 Channel

Photodarlington

Transistor Output Optocouplers 4Pin DIP Photo Darl Optocoupler

FOD852SD
onsemi
1: £0.803
7,272In Stock
18,000On Order

Mfr. Part No.
FOD852SD

Mouser Part No
512-FOD852SD

onsemi

Transistor Output Optocouplers 4Pin DIP Photo Darl Optocoupler

Datasheet

7,272In Stock

18,000On Order

Cut Tape

£0.803

£0.496

£0.386

£0.341

Reel

£0.314

£0.293

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,000

: 1,000

6 V

300 us

150 mA

SMD/SMT

SMT-4

1 Channel

Photodarlington

Transistor Output Optocouplers Optocoupler Phototransistor

H11A1M
onsemi
1: £0.488
9,348In Stock

Mfr. Part No.
H11A1M

Mouser Part No
512-H11A1M

onsemi

Transistor Output Optocouplers Optocoupler Phototransistor

Datasheet

9,348In Stock

£0.488

£0.308

£0.274

£0.228

£0.223

Min.: 1
Mult.: 1
Max.: 1,000

6 V

Through Hole

PDIP-6

1 Channel

NPN Phototransistor

MOSFET Output Optocouplers FET Bilateral analog

H11F1VM
onsemi
1: £1.16
4,884In Stock

Mfr. Part No.
H11F1VM

Mouser Part No
512-H11F1VM

onsemi

MOSFET Output Optocouplers FET Bilateral analog

Datasheet

4,884In Stock

£1.16

£0.673

£0.621

£0.543

£0.501

Min.: 1
Mult.: 1
Max.: 1,070

5 V

Through Hole

PDIP-6

1 Channel

Photo MOSFET

Transistor Output Optocouplers Hi Volt Photodarling

H11G2SR2M
onsemi
1: £0.908
5,783In Stock

Mfr. Part No.
H11G2SR2M

Mouser Part No
512-H11G2SR2M

onsemi

Transistor Output Optocouplers Hi Volt Photodarling

Datasheet

5,783In Stock

Cut Tape

£0.908

£0.608

£0.474

£0.387

Reel

£0.362

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,000

: 1,000

6 V

SMD/SMT

PDIP-6 Gull Wing

1 Channel

Photodarlington

Transistor Output Optocouplers 4-Pin Half-Pitch Mini-Flat Phototransistor Optocouplers

HMHA2801AR2
onsemi
1: £0.555
24,393In Stock

Mfr. Part No.
HMHA2801AR2

Mouser Part No
512-HMHA2801AR2

onsemi

Transistor Output Optocouplers 4-Pin Half-Pitch Mini-Flat Phototransistor Optocouplers

Datasheet

24,393In Stock

Cut Tape

£0.555

£0.383

£0.28

£0.234

£0.219

Reel

£0.196

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,500

: 2,500

6 V

3 us

50 mA

SMD/SMT

SMD-4

1 Channel

NPN Phototransistor

Transistor Output Optocouplers Optocoupler Phototransistor

MCT2EM
onsemi
1: £0.458
12,192In Stock

Mfr. Part No.
MCT2EM

Mouser Part No
512-MCT2EM

onsemi

Transistor Output Optocouplers Optocoupler Phototransistor

Datasheet

12,192In Stock

£0.458

£0.276

£0.252

£0.21

£0.188

Min.: 1
Mult.: 1
Max.: 1,000

6 V

Through Hole

PDIP-6

1 Channel

NPN Phototransistor

Transistor Output Optocouplers DIP-8 DUAL PH TRANS

MCT62
onsemi
1: £0.728
11,615In Stock
8,000On Order

Mfr. Part No.
MCT62

Mouser Part No
512-MCT62

onsemi

Transistor Output Optocouplers DIP-8 DUAL PH TRANS

Datasheet

11,615In Stock

8,000On Order

£0.728

£0.502

£0.369

£0.31

£0.29

Min.: 1
Mult.: 1
Max.: 1,000

25 V

2.4 us

30 mA

Through Hole

PDIP-8

2 Channel

NPN Phototransistor

Transistor Output Optocouplers SO-8 DUAL PH TRAN

MCT62S
onsemi
1: £0.751
12,470In Stock

Mfr. Part No.
MCT62S

Mouser Part No
512-MCT62S

onsemi

Transistor Output Optocouplers SO-8 DUAL PH TRAN

Datasheet

12,470In Stock

£0.751

£0.424

£0.389

Min.: 1
Mult.: 1
Max.: 210

25 V

2.4 us

30 mA

SMD/SMT

PDIP-8 Gull Wing

2 Channel

NPN Phototransistor

Transistor Output Optocouplers 8-Pin Optocoupler Dual Ch Phototrans

MCT62SD
onsemi
1: £0.811
12,715In Stock
12,000Expected 13/10/2026

Mfr. Part No.
MCT62SD

Mouser Part No
512-MCT62SD

onsemi

Transistor Output Optocouplers 8-Pin Optocoupler Dual Ch Phototrans

Datasheet

12,715In Stock

12,000Expected 13/10/2026

Cut Tape

£0.811

£0.559

£0.416

£0.35

Reel

£0.322

£0.306

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,000

: 1,000

25 V

2.4 us

30 mA

SMD/SMT

PDIP-8 Gull Wing

2 Channel

NPN Phototransistor

Transistor Output Optocouplers SO-8 PHOTO TRANS

MOC207M
onsemi
1: £0.63
33,974In Stock

Mfr. Part No.
MOC207M

Mouser Part No
512-MOC207M

onsemi

Transistor Output Optocouplers SO-8 PHOTO TRANS

Datasheet

33,974In Stock

£0.63

£0.376

£0.334

£0.282

View

Min.: 1
Mult.: 1
Max.: 3,000

6 V

3.2 us

150 mA

SMD/SMT

SOIC-Narrow-8

1 Channel

NPN Phototransistor

Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor

MOC207R2M
onsemi
1: £0.646
14,364In Stock
12,500Expected 19/03/2027

Mfr. Part No.
MOC207R2M

Mouser Part No
512-MOC207R2M

onsemi

Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor

Datasheet

14,364In Stock

12,500Expected 19/03/2027

Cut Tape

£0.646

£0.448

£0.308

£0.26

£0.244

Reel

£0.24

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,500

: 2,500

6 V

3.2 us

150 mA

SMD/SMT

SOIC-Narrow-8

1 Channel

NPN Phototransistor

Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor

MOC207R2VM
onsemi
1: £0.661
7,726In Stock

Mfr. Part No.
MOC207R2VM

Mouser Part No
512-MOC207R2VM

onsemi

Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor

Datasheet

7,726In Stock

Cut Tape

£0.661

£0.457

£0.334

£0.278

Reel

£0.244

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

6 V

3.2 us

150 mA

SMD/SMT

SOIC-Narrow-8

1 Channel

NPN Phototransistor

Transistor Output Optocouplers Hi Volt Phototrans

MOC8204M
onsemi
1: £0.788
18,000In Stock

Mfr. Part No.
MOC8204M

Mouser Part No
512-MOC8204M

onsemi

Transistor Output Optocouplers Hi Volt Phototrans

Datasheet

18,000In Stock

£0.788

£0.47

£0.427

£0.359

View

Min.: 1
Mult.: 1

6 V

100 mA

Through Hole

PDIP-6

1 Channel

NPN Phototransistor

Transistor Output Optocouplers SO-8 DUAL CH PHOTO

MOCD211M
onsemi
1: £0.608
6,097In Stock
6,000Expected 09/02/2027

Mfr. Part No.
MOCD211M

Mouser Part No
512-MOCD211M

onsemi

Transistor Output Optocouplers SO-8 DUAL CH PHOTO

Datasheet

6,097In Stock

6,000Expected 09/02/2027

£0.608

£0.399

£0.367

£0.32

View

Min.: 1
Mult.: 1
Max.: 3,000

6 V

3.2 us

150 mA

SMD/SMT

SOIC-Narrow-8

2 Channel

NPN Phototransistor

Transistor Output Optocouplers SO-8 DUAL CH PHOTO

MOCD213M
onsemi
1: £0.759
5,214In Stock
6,000Expected 05/01/2027

Mfr. Part No.
MOCD213M

Mouser Part No
512-MOCD213M

onsemi

Transistor Output Optocouplers SO-8 DUAL CH PHOTO

Datasheet

5,214In Stock

6,000Expected 05/01/2027

£0.759

£0.521

£0.383

Min.: 1
Mult.: 1
Max.: 290

6 V

3.2 us

150 mA

SMD/SMT

SOIC-Narrow-8

2 Channel

NPN Phototransistor

Transistor Output Optocouplers SO-8 DUAL CHAN OPTOC

MOCD213R2M
onsemi
1: £0.751
31,107In Stock

Mfr. Part No.
MOCD213R2M

Mouser Part No
512-MOCD213R2-M

onsemi

Transistor Output Optocouplers SO-8 DUAL CHAN OPTOC

Datasheet

31,107In Stock

Cut Tape

£0.751

£0.518

£0.346

£0.298

£0.284

Reel

£0.259

MouseReel Available

Min.: 1
Mult.: 1
Max.: 2,500

: 2,500

6 V

3.2 us

150 mA

SMD/SMT

SOIC-Narrow-8

2 Channel

NPN Phototransistor

Transistor Output Optocouplers SO-8 DUAL CH PHOTO

MOCD217M
onsemi
1: £0.759
13,980In Stock
12,000Expected 01/12/2026

Mfr. Part No.
MOCD217M

Mouser Part No
512-MOCD217M

onsemi

Transistor Output Optocouplers SO-8 DUAL CH PHOTO

Datasheet

13,980In Stock

12,000Expected 01/12/2026

£0.759

£0.519

£0.382

Min.: 1
Mult.: 1
Max.: 450

6 V

3.2 us

150 mA

SMD/SMT

SOIC-Narrow-8

2 Channel

NPN Phototransistor

Optocouplers for AC/DC Power Supplies

Types of Optocouplers/Photocouplers

Customer Service Office

Company

Resources

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DIP-4
DIP-6
PDIP-16
PDIP-16 Gull Wing
PDIP-4
PDIP-4 Gull Wing
PDIP-6
PDIP-6 Gull Wing
PDIP-8
PDIP-8 Gull Wing
SMD-4
SMD-6
SMD-6 Gull Wing
SMD-DIP-6
SMD-DIP-8
SMT-4
SO-16
SOIC-16
SOIC-4
SOIC-8