Optocouplers/Photocouplers

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

OptoMOS 1-Form-A (SPST-NO) Solid State Relays

Littelfuse offers an extensive portfolio of 1-Form-A (SPST-NO) Solid State Relays (SSRs) in various PC board-mount package sizes. These relays feature load current ratings from 50mA to 9A (20A with heat sink), and 30V to 1000V load voltage ratings. 1-Form-A relays are available in SOP-4, SIP-4, SMD DIP-4, SMD DIP-6, SOIC-16, Power i4-PAC, and ISOPLUS-264 packages. Fault-protected SSRs with active current limit and thermal shutdown are also available from Littelfuse to offer robust and rugged switching solutions.

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

Types of Optocouplers/Photocouplers

List Images

Results: 297

Applied Filters:

Mounting Style

Package/Case

Number of Channels

Output Type

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 #

Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA

LCA110STR
IXYS Integrated Circuits
1: 26,11 kr.
13.404In Stock
6.000Expected 13/08/2026

Mfr. Part No.
LCA110STR

Mouser Part No
849-LCA110STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA

Learn More

Datasheet

13.404In Stock

6.000Expected 13/08/2026

Cut Tape

26,11 kr.

23,28 kr.

22,23 kr.

21,41 kr.

Reel

18,35 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

LCA120
IXYS Integrated Circuits
1: 39,84 kr.
3.717In Stock

Mfr. Part No.
LCA120

Mouser Part No
849-LCA120

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

Learn More

Datasheet

3.717In Stock

39,84 kr.

35,51 kr.

33,94 kr.

33,42 kr.

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

LCA710
IXYS Integrated Circuits
1: 64,08 kr.
5.734In Stock
1.550Expected 17/12/2026

Mfr. Part No.
LCA710

Mouser Part No
849-LCA710

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

Learn More

Datasheet

5.734In Stock

1.550Expected 17/12/2026

64,08 kr.

60,28 kr.

54,01 kr.

52,00 kr.

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

Solid State Relays - PCB Mount SPST-NO 6 Pin SMD

LCA710S
IXYS Integrated Circuits
1: 62,07 kr.
4.269In Stock
400Expected 20/07/2026

Mfr. Part No.
LCA710S

Mouser Part No
849-LCA710S

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 6 Pin SMD

Learn More

Datasheet

4.269In Stock

400Expected 20/07/2026

62,07 kr.

55,28 kr.

52,82 kr.

45,88 kr.

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET

LCA710STR
IXYS Integrated Circuits
1: 59,31 kr.
7.524In Stock

Mfr. Part No.
LCA710STR

Mouser Part No
849-LCA710STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET

Learn More

Datasheet

7.524In Stock

Cut Tape

59,31 kr.

52,82 kr.

50,43 kr.

48,71 kr.

Reel

41,55 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET

LCA715S
IXYS Integrated Circuits
1: 72,59 kr.
4.236In Stock

Mfr. Part No.
LCA715S

Mouser Part No
849-LCA715S

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET

Learn More

Datasheet

4.236In Stock

72,59 kr.

64,68 kr.

61,77 kr.

56,70 kr.

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET

LCA715STR
IXYS Integrated Circuits
1: 69,38 kr.
11.893In Stock

Mfr. Part No.
LCA715STR

Mouser Part No
849-LCA715STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET

Learn More

Datasheet

11.893In Stock

Cut Tape

69,38 kr.

61,77 kr.

59,01 kr.

56,99 kr.

View

Reel

46,33 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay

LCA717STR
IXYS Integrated Circuits
1: 61,17 kr.
2.907In Stock

Mfr. Part No.
LCA717STR

Mouser Part No
849-LCA717STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay

Learn More

Datasheet

2.907In Stock

Cut Tape

61,17 kr.

54,53 kr.

52,07 kr.

50,28 kr.

View

Reel

44,16 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

PLA140
IXYS Integrated Circuits
1: 64,53 kr.
3.215In Stock
3.700Expected 22/10/2026

Mfr. Part No.
PLA140

Mouser Part No
849-PLA140

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

Learn More

Datasheet

3.215In Stock

3.700Expected 22/10/2026

64,53 kr.

60,50 kr.

53,79 kr.

51,03 kr.

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA

PLA170STR
IXYS Integrated Circuits
1: 41,03 kr.
11.962In Stock
8.000Expected 15/01/2027

Mfr. Part No.
PLA170STR

Mouser Part No
849-PLA170STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA

Learn More

Datasheet

11.962In Stock

8.000Expected 15/01/2027

Cut Tape

41,03 kr.

36,63 kr.

34,99 kr.

33,72 kr.

Reel

28,87 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

PCB Mount

MOSFET

Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR

CPC1009NTR
IXYS Integrated Circuits
1: 18,80 kr.
2.888In Stock

Mfr. Part No.
CPC1009NTR

Mouser Part No
849-CPC1009NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR

Learn More

Datasheet

2.888In Stock

Cut Tape

18,80 kr.

17,16 kr.

15,82 kr.

15,37 kr.

Reel

12,83 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 250V, 1-Form-A SSR

CPC1010N
IXYS Integrated Circuits
1: 26,26 kr.
5.075In Stock

Mfr. Part No.
CPC1010N

Mouser Part No
849-CPC1010N

IXYS Integrated Circuits

Solid State Relays - PCB Mount 250V, 1-Form-A SSR

Learn More

Datasheet

5.075In Stock

26,26 kr.

23,42 kr.

22,31 kr.

21,48 kr.

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay

CPC1016N
IXYS Integrated Circuits
1: 20,37 kr.
3.956In Stock

Mfr. Part No.
CPC1016N

Mouser Part No
849-CPC1016N

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay

Learn More

Datasheet

3.956In Stock

20,37 kr.

18,13 kr.

17,31 kr.

16,71 kr.

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A

CPC1020N
IXYS Integrated Circuits
1: 42,22 kr.
1.150In Stock
17.600On Order

Mfr. Part No.
CPC1020N

Mouser Part No
849-CPC1020N

IXYS Integrated Circuits

Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A

Learn More

Datasheet

1.150In Stock

17.600On Order

42,22 kr.

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

CPC1025N
IXYS Integrated Circuits
1: 18,43 kr.
5.723In Stock
2.500Expected 06/01/2027

Mfr. Part No.
CPC1025N

Mouser Part No
849-CPC1025N

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

Learn More

Datasheet

5.723In Stock

2.500Expected 06/01/2027

18,43 kr.

16,86 kr.

15,82 kr.

15,37 kr.

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay

CPC1030NTR
IXYS Integrated Circuits
1: 24,10 kr.
3.842In Stock

Mfr. Part No.
CPC1030NTR

Mouser Part No
849-CPC1030NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay

Learn More

Datasheet

3.842In Stock

Cut Tape

24,10 kr.

21,56 kr.

20,59 kr.

19,77 kr.

View

Reel

16,49 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

CPC1225NTR
IXYS Integrated Circuits
1: 22,68 kr.
3.597In Stock
2.000Expected 11/09/2026

Mfr. Part No.
CPC1225NTR

Mouser Part No
849-CPC1225NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

Learn More

Datasheet

3.597In Stock

2.000Expected 11/09/2026

Cut Tape

22,68 kr.

20,22 kr.

19,32 kr.

18,58 kr.

View

Reel

15,37 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount SPST-NO 4PIN SOP

CPC1230N
IXYS Integrated Circuits
1: 24,10 kr.
1.283In Stock
700Expected 20/08/2026

Mfr. Part No.
CPC1230N

Mouser Part No
849-CPC1230N

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 4PIN SOP

Learn More

Datasheet

1.283In Stock

700Expected 20/08/2026

24,10 kr.

22,01 kr.

20,29 kr.

19,47 kr.

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount Single Pole Relay 400V 140mA

CPC1390G
IXYS Integrated Circuits
1: 27,98 kr.
1.023In Stock

Mfr. Part No.
CPC1390G

Mouser Part No
849-CPC1390G

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single Pole Relay 400V 140mA

Learn More

Datasheet

1.023In Stock

27,98 kr.

24,99 kr.

23,80 kr.

22,98 kr.

View

Min.: 1
Mult.: 1

PCB Mount

DIP-4

MOSFET

Solid State Relays - PCB Mount Single Pole Relay 400V 140mA

CPC1390GRTR
IXYS Integrated Circuits
1: 26,71 kr.
562In Stock
11.000On Order

Mfr. Part No.
CPC1390GRTR

Mouser Part No
849-CPC1390GRTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single Pole Relay 400V 140mA

Learn More

Datasheet

562In Stock

11.000On Order

Cut Tape

26,71 kr.

23,87 kr.

22,75 kr.

21,86 kr.

Reel

18,72 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

PCB Mount

SMD DIP-4

MOSFET

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

CPC1393G
IXYS Integrated Circuits
1: 30,51 kr.
1.890In Stock

Mfr. Part No.
CPC1393G

Mouser Part No
849-CPC1393G

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

Learn More

Datasheet

1.890In Stock

30,51 kr.

27,23 kr.

25,96 kr.

25,07 kr.

View

Min.: 1
Mult.: 1

PCB Mount

DIP-4

MOSFET

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

CPC1393GRTR
IXYS Integrated Circuits
1: 29,09 kr.
4.580In Stock
4.000Expected 22/01/2027

Mfr. Part No.
CPC1393GRTR

Mouser Part No
849-CPC1393GRTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

Learn More

Datasheet

4.580In Stock

4.000Expected 22/01/2027

Cut Tape

29,09 kr.

25,96 kr.

24,84 kr.

23,95 kr.

Reel

20,14 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

PCB Mount

DIP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation

CPC1394G
IXYS Integrated Circuits
1: 30,51 kr.
552In Stock

Mfr. Part No.
CPC1394G

Mouser Part No
849-CPC1394G

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation

Learn More

Datasheet

552In Stock

30,51 kr.

27,23 kr.

25,96 kr.

25,07 kr.

View

Min.: 1
Mult.: 1

PCB Mount

DIP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation

CPC1394GRTR
IXYS Integrated Circuits
1: 29,09 kr.
1.287In Stock
4.000On Order

Mfr. Part No.
CPC1394GRTR

Mouser Part No
849-CPC1394GRTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation

Learn More

Datasheet

1.287In Stock

4.000On Order

Cut Tape

29,09 kr.

25,96 kr.

24,84 kr.

23,95 kr.

Reel

20,44 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

PCB Mount

MOSFET

Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay

CPC1510G
IXYS Integrated Circuits
1: 43,72 kr.
369In Stock

Mfr. Part No.
CPC1510G

Mouser Part No
849-CPC1510G

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay

Learn More

Datasheet

369In Stock

43,72 kr.

38,94 kr.

37,23 kr.

35,88 kr.

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

OptoMOS 1-Form-A (SPST-NO) Solid State Relays

Types of Optocouplers/Photocouplers

Customer Service Office

Company

Resources

Support