Transistor Output Optocouplers

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General-Purpose Phototransistor Photocouplers

LITEON General-Purpose Phototransistor Photocouplers are designed to provide reliable optical isolation and signal transmission in a wide range of electronic applications. These LITEON devices feature a phototransistor output that enables effective switching and signal coupling between input and output circuits while maintaining electrical isolation of up to 5000V_RMS. With current transfer ratios (CTR) typically ranging from 20% to over 320%, and options for single or dual-channel configurations, the photocouplers are well-suited for use in microprocessor interfaces, control systems, and data communication circuits. Many models offer compact DIP or SOP packaging, wide operating temperature ranges, and compliance with international safety standards such as UL and VDE. The versatility, cost-effectiveness, and robust performance make these components ideal for both consumer electronics and industrial automation systems.

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Part #

Transistor Output Optocouplers SO8 100% 3.75KV 2CH Optocoupler

LTV-208
LITEON
1: S/4.63
6,395In Stock

Mfr. Part #
LTV-208

Mouser Part #
859-LTV-208

LITEON

Transistor Output Optocouplers SO8 100% 3.75KV 2CH Optocoupler

Learn More

Datasheet

6,395In Stock

Cut Tape

S/4.63

S/3.25

S/2.41

S/2.04

Reel

S/1.62

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

SMD/SMT

SOP-8

2 Channel

3750 Vrms

NPN Phototransistor

160 %

320 %

30 mA

1.55 V

80 V

400 mV

3 us

6 V

125 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler AC in 4-CHNL

LTV-844HS
LITEON
1: S/6.03
6,777In Stock

Mfr. Part #
LTV-844HS

Mouser Part #
859-LTV-844HS

LITEON

Transistor Output Optocouplers Optocoupler AC in 4-CHNL

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Datasheet

6,777In Stock

S/6.03

S/3.80

S/3.22

S/2.76

View

Min.: 1
Mult.: 1

SMD/SMT

PDIP-16 Gull Wing

4 Channel

5000 Vrms

Phototransistor

20 %

80 %

150 mA

1.7 V

35 V

80 mA

200 mV

18 us

320 mW

- 30 C

+ 100 C

Tube

Transistor Output Optocouplers SO8 100-200% 3.75KV 2CH Optocoupler

LTV-207
LITEON
1: S/4.63
10,704In Stock

Mfr. Part #
LTV-207

Mouser Part #
859-LTV-207

LITEON

Transistor Output Optocouplers SO8 100-200% 3.75KV 2CH Optocoupler

Learn More

Datasheet

10,704In Stock

Cut Tape

S/4.63

S/3.25

S/2.41

S/2.04

Reel

S/1.80

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

SMD/SMT

SOP-8

2 Channel

3750 Vrms

Phototransistor

100 %

200 %

30 mA

1.55 V

80 V

400 mV

3 us

6 V

125 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers OPTOCOUPLER, AC, 600%, 5KV, 4 PIN, HALOGEN-FREE, T/R

LTV-217-D-G
LITEON
1: S/2.84
5,592In Stock

Mfr. Part #
LTV-217-D-G

Mouser Part #
859-LTV-217-D-G

LITEON

Transistor Output Optocouplers OPTOCOUPLER, AC, 600%, 5KV, 4 PIN, HALOGEN-FREE, T/R

Learn More

Datasheet

5,592In Stock

Cut Tape

S/2.84

S/1.86

S/1.25

S/0.864

Reel

S/0.705

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

SSOP-4

1 Channel

3750 Vrms

Phototransistor

50 %

600 %

20 mA

1.4 V

70 V

50 mA

1.4 V

18 us

4 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers HCEV, 160%, 5KV

CNY17F-4S-TA
LITEON
1: S/2.61
106In Stock
5,000Expected 8/26/2026

Mfr. Part #
CNY17F-4S-TA

Mouser Part #
859-CNY17F-4S-TA

LITEON

Transistor Output Optocouplers HCEV, 160%, 5KV

Learn More

Datasheet

106In Stock

5,000Expected 8/26/2026

Cut Tape

S/2.61

S/1.72

S/1.15

S/0.806

Reel

S/0.681

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-6 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

160 %

320 %

60 mA

1.65 V

70 V

150 mA

300 mV

10 us

6 V

250 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers P/C LTV817A-V STD. TYPE VDE

LTV817A-V
LITEON
1: S/2.06
1,674In Stock

Mfr. Part #
LTV817A-V

Mouser Part #
859-LTV817A-V

LITEON

Transistor Output Optocouplers P/C LTV817A-V STD. TYPE VDE

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Datasheet

1,674In Stock

S/2.06

S/1.42

S/1.02

S/0.837

View

Min.: 1
Mult.: 1

Through Hole

DIP-4

1 Channel

5000 Vrms

50 %

600 %

50 mA

1.2 V

35 V

200 mV

4 us

3 us

- 30 C

+ 110 C

Tube

Transistor Output Optocouplers PTR 100%, 3.5KV

4N35S-TA
LITEON
1: S/1.71
9,649In Stock

Mfr. Part #
4N35S-TA

Mouser Part #
859-4N35S-TA

LITEON

Transistor Output Optocouplers PTR 100%, 3.5KV

Learn More

Datasheet

9,649In Stock

Cut Tape

S/1.71

S/1.19

S/0.849

S/0.693

Reel

S/0.642

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-6 Gull Wing

1 Channel

3550 Vrms

NPN Phototransistor

100 %

60 mA

1.5 V

30 V

100 mA

300 mV

10 us

6 V

350 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers P/C LTV826STA1-V TAPPING TYPE II, VDE

LTV826STA1-V
LITEON
1: S/2.84
3,822In Stock

Mfr. Part #
LTV826STA1-V

Mouser Part #
859-LTV826STA1-V

LITEON

Transistor Output Optocouplers P/C LTV826STA1-V TAPPING TYPE II, VDE

Learn More

Datasheet

3,822In Stock

Cut Tape

S/2.84

S/1.96

S/1.43

S/1.19

Reel

S/1.11

View

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

2 Channel

5000 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

80 V

50 mA

200 mV

18 us

6 V

200 mW

- 30 C

+ 100 C

Reel, Cut Tape

Transistor Output Optocouplers Optocoupler Phototrans

LTV-702FS
LITEON
1: S/2.57
3,059In Stock

Mfr. Part #
LTV-702FS

Mouser Part #
859-LTV-702FS

LITEON

Transistor Output Optocouplers Optocoupler Phototrans

Learn More

Datasheet

3,059In Stock

S/2.57

S/1.69

S/1.12

S/0.775

View

Min.: 1
Mult.: 1

SMD/SMT

PDIP-6 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

60 mA

1.7 V

70 V

50 mA

400 mV

7 us

8 us

6 V

200 mW

- 55 C

+ 100 C

Tube

Transistor Output Optocouplers P/C LTV817B-V STD. TYPE VDE

LTV817B-V
LITEON
1: S/1.87
1,587In Stock
5,000Expected 10/13/2026

Mfr. Part #
LTV817B-V

Mouser Part #
859-LTV817B-V

LITEON

Transistor Output Optocouplers P/C LTV817B-V STD. TYPE VDE

Learn More

Datasheet

1,587In Stock

5,000Expected 10/13/2026

Cut Tape

S/1.87

S/1.23

S/0.821

S/0.58

Reel

S/0.49

View

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

SMD-4

1 Channel

5000 Vrms

Phototransistor

50 %

100 %

50 mA

1.2 V

35 V

30 mA

200 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape

Transistor Output Optocouplers DC INPUT, 2CH

LTV-827S-TA1-B
LITEON
1: S/2.53
479In Stock
6,000Expected 10/13/2026

Mfr. Part #
LTV-827S-TA1-B

Mouser Part #
859-LTV-827S-TA1-B

LITEON

Transistor Output Optocouplers DC INPUT, 2CH

Learn More

Datasheet

479In Stock

6,000Expected 10/13/2026

Cut Tape

S/2.53

S/1.74

S/1.25

S/1.07

Reel

S/0.907

View

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

SMD-8

2 Channel

5000 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.2 V

35 V

50 mA

200 mV

4 us

3 us

6 V

200 mW

- 30 C

+ 100 C

Reel, Cut Tape

Transistor Output Optocouplers Optocoupler AC input

LTV-733
LITEON
1: S/2.76
101In Stock
6,240Expected 7/27/2026

Mfr. Part #
LTV-733

Mouser Part #
859-LTV-733

LITEON

Transistor Output Optocouplers Optocoupler AC input

Learn More

Datasheet

101In Stock

6,240Expected 7/27/2026

S/2.76

S/1.92

S/1.40

S/1.17

View

Min.: 1
Mult.: 1

Through Hole

PDIP-6

1 Channel

5000 Vrms

NPN Phototransistor

20 %

300 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

200 mW

- 30 C

+ 100 C

Tube

Transistor Output Optocouplers PTR 20%, 2.5KV

4N26S-TA1
LITEON
1: S/2.76
5,000In Stock

Mfr. Part #
4N26S-TA1

Mouser Part #
859-4N26S-TA1

LITEON

Transistor Output Optocouplers PTR 20%, 2.5KV

Learn More

Datasheet

5,000In Stock

Cut Tape

S/2.76

S/1.80

S/1.20

S/0.845

Reel

S/0.716

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-6 Gull Wing

1 Channel

1500 Vrms

NPN Phototransistor

20 %

80 mA

1.5 V

30 V

100 mA

500 mV

3 us

6 V

250 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler Phototrans

LTV-702V
LITEON
1: S/2.57
3,959In Stock

Mfr. Part #
LTV-702V

Mouser Part #
859-LTV-702V

LITEON

Transistor Output Optocouplers Optocoupler Phototrans

Learn More

Datasheet

3,959In Stock

S/2.57

S/1.69

S/1.12

S/0.775

View

Min.: 1
Mult.: 1

Through Hole

PDIP-6

1 Channel

5000 Vrms

NPN Phototransistor

40 %

320 %

60 mA

1.7 V

70 V

50 mA

400 mV

7 us

8 us

6 V

200 mW

- 55 C

+ 100 C

Tube

Transistor Output Optocouplers Optocoupler

LTV-702VB
LITEON
1: S/2.30
5,055In Stock

Mfr. Part #
LTV-702VB

Mouser Part #
859-LTV-702VB

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

5,055In Stock

S/2.30

S/1.49

S/0.993

S/0.685

View

Min.: 1
Mult.: 1

Through Hole

1 Channel

5000 Vrms

NPN Phototransistor

63 %

125 %

60 mA

1.7 V

70 V

50 mA

400 mV

7 us

8 us

6 V

200 mW

- 55 C

+ 100 C

Tube

Transistor Output Optocouplers HCEV, 63%, 5KV

CNY17F-2S-TA1
LITEON
1: S/2.10
185In Stock

Mfr. Part #
CNY17F-2S-TA1

Mouser Part #
859-CNY17F-2S-TA1

LITEON

Transistor Output Optocouplers HCEV, 63%, 5KV

Learn More

Datasheet

185In Stock

Cut Tape

S/2.10

S/1.44

S/1.04

S/0.876

Reel

S/0.74

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-6 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

60 mA

1.65 V

70 V

150 mA

300 mV

10 us

6 V

250 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler

LTV-702VS-TA1
LITEON
1: S/2.10
784In Stock

Mfr. Part #
LTV-702VS-TA1

Mouser Part #
859-LTV-702VS-TA1

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

784In Stock

Cut Tape

S/2.10

S/1.44

S/1.04

S/0.876

Reel

S/0.74

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-6 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

40 %

320 %

60 mA

1.7 V

70 V

50 mA

400 mV

7 us

8 us

6 V

200 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers DC INPUT, 4CH

LTV-847S-BC
LITEON
1: S/5.45
2,535In Stock

Mfr. Part #
LTV-847S-BC

Mouser Part #
859-LTV-847S-BC

LITEON

Transistor Output Optocouplers DC INPUT, 4CH

Learn More

Datasheet

2,535In Stock

S/5.45

S/2.86

S/2.24

S/2.04

View

Min.: 1
Mult.: 1

SMD/SMT

4 Channel

5000 Vrms

NPN Phototransistor

130 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

6 V

200 mW

- 30 C

+ 100 C

Tube

Transistor Output Optocouplers 4-CH 50% 5KV 16-Pin PTR Optocoupler 4"

LTV-847M
LITEON
1: S/5.18
1,952In Stock

Mfr. Part #
LTV-847M

Mouser Part #
859-LTV-847M

LITEON

Transistor Output Optocouplers 4-CH 50% 5KV 16-Pin PTR Optocoupler 4"

Learn More

Datasheet

1,952In Stock

S/5.18

S/3.57

S/2.62

S/2.20

View

Min.: 1
Mult.: 1

Through Hole

PDIP-16

4 Channel

5000 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

6 V

200 mW

- 30 C

+ 100 C

Tube

Transistor Output Optocouplers HCEV, 63%, 5KV

CNY17F-2
LITEON
1: S/1.52
8,143In Stock

Mfr. Part #
CNY17F-2

Mouser Part #
859-CNY17F-2

LITEON

Transistor Output Optocouplers HCEV, 63%, 5KV

Learn More

Datasheet

8,143In Stock

S/1.52

S/0.65

S/0.599

S/0.537

View

Min.: 1
Mult.: 1

Through Hole

PDIP-6

1 Channel

5000 Vrms

NPN Phototransistor

63 %

125 %

60 mA

1.65 V

70 V

150 mA

300 mV

10 us

6 V

250 mW

- 55 C

+ 100 C

Tube

Transistor Output Optocouplers PTR 50% 5KV 16 PIN 4CH Optocoupler

LTV-247
LITEON
1: S/4.75
48,389In Stock
28,000Expected 12/14/2026

Mfr. Part #
LTV-247

Mouser Part #
859-LTV-247

LITEON

Transistor Output Optocouplers PTR 50% 5KV 16 PIN 4CH Optocoupler

Learn More

Datasheet

48,389In Stock

28,000Expected 12/14/2026

Cut Tape

S/4.75

S/3.33

S/2.48

S/2.11

Reel

S/1.88

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

SMD/SMT

SOP-16

4 Channel

3750 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

80 V

50 mA

400 mV

18 us

6 V

170 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler

LTV-814S-TA
LITEON
1: S/2.18
214,519In Stock

Mfr. Part #
LTV-814S-TA

Mouser Part #
859-LTV-814S-TA

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

214,519In Stock

Cut Tape

S/2.18

S/1.49

S/1.07

S/0.88

Reel

S/0.81

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-4 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

20 %

300 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

200 mW

- 50 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocplr Phototrans 4-Channel

LTV-846S
LITEON
1: S/4.24
63,503In Stock
57,300Expected 10/19/2026

Mfr. Part #
LTV-846S

Mouser Part #
859-LTV-846S

LITEON

Transistor Output Optocouplers Optocplr Phototrans 4-Channel

Learn More

Datasheet

63,503In Stock

57,300Expected 10/19/2026

S/4.24

S/3.05

S/2.29

S/1.96

View

Min.: 1
Mult.: 1

SMD/SMT

PDIP-16 Gull Wing

4 Channel

5000 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

80 V

50 mA

200 mV

18 us

6 V

200 mW

- 30 C

+ 100 C

Tube

Transistor Output Optocouplers Optocoupler, AC 600%, 5KV, 4 PIN

LTV-217-C-G
LITEON
1: S/1.95
151,907In Stock

Mfr. Part #
LTV-217-C-G

Mouser Part #
859-LTV217CG

LITEON

Transistor Output Optocouplers Optocoupler, AC 600%, 5KV, 4 PIN

Learn More

Datasheet

151,907In Stock

Cut Tape

S/1.95

S/1.33

S/0.958

S/0.786

Reel

S/0.654

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

SSOP-4

1 Channel

3750 Vrms

NPN Phototransistor

200 %

400 %

50 mA

1.4 V

80 V

50 mA

400 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers P/C LTV-356T-TP1-B (2.0) STD. TYPE

LTV-356T-TP1-B
LITEON
1: S/1.13
8,736In Stock

Mfr. Part #
LTV-356T-TP1-B

Mouser Part #
859-LTV-356T-TP1-B

LITEON

Transistor Output Optocouplers P/C LTV-356T-TP1-B (2.0) STD. TYPE

Learn More

Datasheet

8,736In Stock

Cut Tape

S/1.13

S/0.759

S/0.533

S/0.432

Reel

S/0.35

View

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

SMD-4

1 Channel

3750 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.2 V

80 V

50 mA

200 mV

4 us

3 us

6 V

170 mW

- 55 C

+ 110 C

Reel, Cut Tape

General-Purpose Phototransistor Photocouplers

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DIP-16
DIP-4
DIP-8
MFP-4
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-16
SMD-4
SMD-6
SMD-8
SMD-DIP-16
SOIC-4
SOP-16
SOP-4