Transistor Output Optocouplers

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 212

Applied Filters:

Mounting Style

Package / Case

Number of Channels

Isolation Voltage

Output Type

Current Transfer Ratio - Min

Current Transfer Ratio - Max

If - Forward Current

Vf - Forward Voltage

Maximum Collector Emitter Voltage

Maximum Collector Current

Maximum Collector Emitter Saturation Voltage

Rise Time

Fall Time

Vr - Reverse Voltage

Pd - Power Dissipation

Minimum Operating Temperature

Maximum Operating Temperature

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Transistor Output Optocouplers P/C LTV-354T-A STD. TYPE

LTV-354T-A
LITEON
1: S/2.22
11,287In Stock
9,000Expected 9/28/2026

Mfr. Part #
LTV-354T-A

Mouser Part #
859-LTV-354T-A

LITEON

Transistor Output Optocouplers P/C LTV-354T-A STD. TYPE

Learn More

Datasheet

11,287In Stock

9,000Expected 9/28/2026

Cut Tape

S/2.22

S/1.53

S/1.10

S/0.907

Reel

S/0.771

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

1 Channel

3750 Vrms

NPN Phototransistor

50 %

150 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

170 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler Phototrans

LTV-356T
LITEON
1: S/1.67
110,445In Stock
99,000Expected 9/28/2026

Mfr. Part #
LTV-356T

Mouser Part #
859-LTV-356T

LITEON

Transistor Output Optocouplers Optocoupler Phototrans

Learn More

Datasheet

110,445In Stock

99,000Expected 9/28/2026

Cut Tape

S/1.67

S/1.14

S/0.814

S/0.666

Reel

S/0.541

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

SMD-4

1 Channel

3750 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

80 V

50 mA

200 mV

4 us

3 us

6 V

170 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

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

LTV-356T-B
LITEON
1: S/1.79
83,701In Stock

Mfr. Part #
LTV-356T-B

Mouser Part #
859-LTV-356T-B

LITEON

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

Learn More

Datasheet

83,701In Stock

Cut Tape

S/1.79

S/1.23

S/0.88

S/0.72

Reel

S/0.588

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

1 Channel

3750 Vrms

NPN Phototransistor

130 %

260 %

50 mA

1.4 V

80 V

50 mA

200 mV

4 us

3 us

6 V

170 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler Phototrans

LTV-357T
LITEON
1: S/1.67
28,523In Stock

Mfr. Part #
LTV-357T

Mouser Part #
859-LTV-357T

LITEON

Transistor Output Optocouplers Optocoupler Phototrans

Learn More

Datasheet

28,523In Stock

Cut Tape

S/1.67

S/1.14

S/0.814

S/0.666

Reel

S/0.541

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

SMD-4

1 Channel

3750 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

6 V

170 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler Phototrans

LTV-358T
LITEON
1: S/2.18
15,189In Stock

Mfr. Part #
LTV-358T

Mouser Part #
859-LTV-358T

LITEON

Transistor Output Optocouplers Optocoupler Phototrans

Learn More

Datasheet

15,189In Stock

Cut Tape

S/2.18

S/1.49

S/1.07

S/0.887

Reel

S/0.755

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

SMD-4

1 Channel

3750 Vrms

NPN Phototransistor

80 %

160 %

50 mA

1.4 V

120 V

50 mA

200 mV

18 us

6 V

170 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler

LTV-814HS-TA1
LITEON
1: S/2.22
12,080In Stock
10,000Expected 10/26/2026

Mfr. Part #
LTV-814HS-TA1

Mouser Part #
859-LTV-814HS-TA1

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

12,080In Stock

10,000Expected 10/26/2026

Cut Tape

S/2.22

S/1.53

S/1.11

S/0.919

Reel

S/0.849

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-4 Gull Wing

1 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

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler

LTV-814S-TA1
LITEON
1: S/2.06
457In Stock

Mfr. Part #
LTV-814S-TA1

Mouser Part #
859-LTV-814S-TA1

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

457In Stock

Cut Tape

S/2.06

S/1.42

S/1.02

S/0.841

Reel

S/0.779

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-4 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

20 %

300 %

20 mA

1.4 V

35 V

50 mA

200 mV

18 us

200 mW

- 30 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler

LTV-816S-TA1
LITEON
1: S/1.56
24,037In Stock
32,850On Order

Mfr. Part #
LTV-816S-TA1

Mouser Part #
859-LTV-816S-TA1

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

24,037In Stock

32,850On Order

Cut Tape

S/1.56

S/1.07

S/0.759

S/0.619

Reel

S/0.568

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-4 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

80 V

50 mA

200 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers P/C LTV-816S-TA1-A TAPING TYPE II

LTV-816S-TA1-A
LITEON
1: S/1.56
49,848In Stock
5,000Expected 9/7/2026

Mfr. Part #
LTV-816S-TA1-A

Mouser Part #
859-LTV-816S-TA1-A

LITEON

Transistor Output Optocouplers P/C LTV-816S-TA1-A TAPING TYPE II

Learn More

Datasheet

49,848In Stock

5,000Expected 9/7/2026

Cut Tape

S/1.56

S/1.07

S/0.763

S/0.623

Reel

S/0.568

View

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

1 Channel

5000 Vrms

NPN Phototransistor

80 %

160 %

50 mA

1.4 V

80 V

50 mA

200 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape

Transistor Output Optocouplers P/C LTV-816S-TA1-D TAPPING TYPE II

LTV-816S-TA1-D
LITEON
1: S/1.56
15,060In Stock

Mfr. Part #
LTV-816S-TA1-D

Mouser Part #
859-LTV-816S-TA1-D

LITEON

Transistor Output Optocouplers P/C LTV-816S-TA1-D TAPPING TYPE II

Learn More

Datasheet

15,060In Stock

Cut Tape

S/1.56

S/1.07

S/0.763

S/0.623

Reel

S/0.572

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

1 Channel

5000 Vrms

NPN Phototransistor

300 %

600 %

50 mA

1.4 V

80 V

50 mA

200 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler

LTV-817S-TA1
LITEON
1: S/1.56
41,556In Stock
55,000Expected 11/9/2026

Mfr. Part #
LTV-817S-TA1

Mouser Part #
859-LTV-817S-TA1

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

41,556In Stock

55,000Expected 11/9/2026

Cut Tape

S/1.56

S/1.06

S/0.755

S/0.615

Reel

S/0.529

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-4 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler

LTV-827S-TA1
LITEON
1: S/2.22
15,137In Stock
22,000On Order

Mfr. Part #
LTV-827S-TA1

Mouser Part #
859-LTV-827S-TA1

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

15,137In Stock

22,000On Order

Cut Tape

S/2.22

S/1.52

S/1.09

S/0.899

Reel

S/0.821

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-8 Gull Wing

2 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

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers P/C LTV354TA-V-36 STD.TYPE

LTV354TA-V-36
LITEON
1: S/1.44
36,687In Stock

Mfr. Part #
LTV354TA-V-36

Mouser Part #
859-LTV354TA-V-36

LITEON

Transistor Output Optocouplers P/C LTV354TA-V-36 STD.TYPE

Learn More

Datasheet

36,687In Stock

Cut Tape

S/1.44

S/0.993

S/0.705

S/0.572

Reel

S/0.49

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

1 Channel

3750 Vrms

NPN Phototransistor

50 %

150 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

170 mW

- 55 C

+ 100 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers P/C LTV-214 STD. TYPE

LTV-214-AK-G
LITEON
1: S/1.67
10,392In Stock
9,000Expected 11/26/2026

Mfr. Part #
LTV-214-AK-G

Mouser Part #
859-LTV-214-AK-G

LITEON

Transistor Output Optocouplers P/C LTV-214 STD. TYPE

Learn More

Datasheet

10,392In Stock

9,000Expected 11/26/2026

Cut Tape

S/1.67

S/1.14

S/0.81

S/0.662

Reel

S/0.537

View

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

SMD-4

1 Channel

3750 Vrms

NPN Phototransistor

20 %

400 %

50 mA

1.2 V

80 V

50 mA

400 mV

3 us

4 us

200 mW

- 55 C

+ 110 C

Reel, Cut Tape

Transistor Output Optocouplers PTR 20%, 2.5KV

4N25
LITEON
1: S/2.02
15,369In Stock

Mfr. Part #
4N25

Mouser Part #
859-4N25

LITEON

Transistor Output Optocouplers PTR 20%, 2.5KV

Learn More

Datasheet

15,369In Stock

S/2.02

S/1.64

S/1.21

S/0.833

View

Min.: 1
Mult.: 1

Through Hole

PDIP-6

1 Channel

2500 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

Tube

Transistor Output Optocouplers PTR 20%, 2.5KV

4N25S-TA1
LITEON
1: S/1.87
12,176In Stock

Mfr. Part #
4N25S-TA1

Mouser Part #
859-4N25S-TA1

LITEON

Transistor Output Optocouplers PTR 20%, 2.5KV

Learn More

Datasheet

12,176In Stock

Cut Tape

S/1.87

S/1.30

S/0.926

S/0.763

Reel

S/0.673

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-6 Gull Wing

1 Channel

2500 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 PTR 100%, 3.5KV

4N35
LITEON
1: S/2.49
15,511In Stock
13,195Expected 11/18/2026

Mfr. Part #
4N35

Mouser Part #
859-4N35

LITEON

Transistor Output Optocouplers PTR 100%, 3.5KV

Learn More

Datasheet

15,511In Stock

13,195Expected 11/18/2026

S/2.49

S/1.37

S/1.07

S/0.747

View

Min.: 1
Mult.: 1

Through Hole

PDIP-6

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

Tube

Transistor Output Optocouplers HCEV, 100%, 5KV

CNY17-3S-TA1
LITEON
1: S/2.22
9,316In Stock

Mfr. Part #
CNY17-3S-TA1

Mouser Part #
859-CNY17-3S-TA1

LITEON

Transistor Output Optocouplers HCEV, 100%, 5KV

Learn More

Datasheet

9,316In Stock

Cut Tape

S/2.22

S/1.53

S/1.10

S/0.907

Reel

S/0.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-6 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

100 %

200 %

60 mA

1.65 V

70 V

100 mA

300 mV

3 us

14 us

6 V

250 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers 20% 3.75KV 4 Pin AC Optocoupler

LTV-214
LITEON
1: S/2.92
6,439In Stock

Mfr. Part #
LTV-214

Mouser Part #
859-LTV-214

LITEON

Transistor Output Optocouplers 20% 3.75KV 4 Pin AC Optocoupler

Learn More

Datasheet

6,439In Stock

Cut Tape

S/2.92

S/2.02

S/1.48

S/1.23

Reel

S/0.934

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

SSOP-4

1 Channel

3750 Vrms

NPN Phototransistor

20 %

400 %

50 mA

1.4 V

80 V

50 mA

400 mV

2 us

3 us

6 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler AC input

LTV-814
LITEON
1: S/1.99
27,263In Stock
6,000Expected 11/9/2026

Mfr. Part #
LTV-814

Mouser Part #
859-LTV-814

LITEON

Transistor Output Optocouplers Optocoupler AC input

Learn More

Datasheet

27,263In Stock

6,000Expected 11/9/2026

S/1.99

S/1.36

S/0.973

S/0.798

View

Min.: 1
Mult.: 1

Through Hole

PDIP-4

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 Optocoupler Phototrans

LTV-817S
LITEON
1: S/1.79
21,526In Stock
27,000Expected 9/14/2026

Mfr. Part #
LTV-817S

Mouser Part #
859-LTV-817S

LITEON

Transistor Output Optocouplers Optocoupler Phototrans

Learn More

Datasheet

21,526In Stock

27,000Expected 9/14/2026

S/1.79

S/1.20

S/0.673

S/0.592

View

Min.: 1
Mult.: 1

SMD/SMT

PDIP-4 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Tube

Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT

LTV-817S-D
LITEON
1: S/1.71
28,573In Stock

Mfr. Part #
LTV-817S-D

Mouser Part #
859-LTV-817S-D

LITEON

Transistor Output Optocouplers Optocoupler 50% 5kv 4Pin SMT

Learn More

Datasheet

28,573In Stock

S/1.71

S/1.16

S/0.829

S/0.658

View

Min.: 1
Mult.: 1

SMD/SMT

PDIP-4 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

300 %

600 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Tube

Transistor Output Optocouplers Optocoupler

LTV-817S-TA
LITEON
1: S/1.71
37,207In Stock
26,000Expected 9/21/2026

Mfr. Part #
LTV-817S-TA

Mouser Part #
859-LTV-817S-TA

LITEON

Transistor Output Optocouplers Optocoupler

Learn More

Datasheet

37,207In Stock

26,000Expected 9/21/2026

Cut Tape

S/1.71

S/1.16

S/0.829

S/0.681

Reel

S/0.623

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

SMD/SMT

PDIP-4 Gull Wing

1 Channel

5000 Vrms

NPN Phototransistor

50 %

600 %

50 mA

1.4 V

35 V

50 mA

200 mV

18 us

6 V

200 mW

- 55 C

+ 110 C

Reel, Cut Tape, MouseReel

Transistor Output Optocouplers Optocoupler AC in 2-CHNL

LTV-824
LITEON
1: S/4.01
8,296In Stock

Mfr. Part #
LTV-824

Mouser Part #
859-LTV-824

LITEON

Transistor Output Optocouplers Optocoupler AC in 2-CHNL

Learn More

Datasheet

8,296In Stock

S/4.01

S/2.76

S/2.02

S/1.68

View

Min.: 1
Mult.: 1

Through Hole

PDIP-8

2 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 Optocoupler AC in 4-CHNL

LTV-844S
LITEON
1: S/7.71
10,107In Stock
39,100Expected 9/28/2026

Mfr. Part #
LTV-844S

Mouser Part #
859-LTV-844S

LITEON

Transistor Output Optocouplers Optocoupler AC in 4-CHNL

Learn More

Datasheet

10,107In Stock

39,100Expected 9/28/2026

S/7.71

S/4.75

S/3.83

S/3.35

View

Min.: 1
Mult.: 1

SMD/SMT

SMD-DIP-16

4 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

General-Purpose Phototransistor Photocouplers

Customer Service Office

Company

Resources

Support

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