Optocouplers / Photocouplers

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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.

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Types of Optocouplers / Photocouplers

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Results: 297

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Part #

Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP

LAA110S
IXYS Integrated Circuits
1: $13.23
2,473In Stock
100Expected 2026-12-25

Mfr. Part #
LAA110S

Mouser Part #
849-LAA110S

IXYS Integrated Circuits

Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP

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Datasheet

2,473In Stock

100Expected 2026-12-25

$13.23

$11.79

$11.26

$10.86

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

LAA110STR
IXYS Integrated Circuits
1: $12.64
11,811In Stock

Mfr. Part #
LAA110STR

Mouser Part #
849-LAA110STR

IXYS Integrated Circuits

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

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Datasheet

11,811In Stock

Cut Tape

$12.64

$11.26

$10.76

$10.28

View

Reel

$9.12

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-8

MOSFET

Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole

LAA710S
IXYS Integrated Circuits
1: $21.99
5,149In Stock

Mfr. Part #
LAA710S

Mouser Part #
849-LAA710S

IXYS Integrated Circuits

Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole

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Datasheet

5,149In Stock

$21.99

$20.69

$20.17

$19.38

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

LCA110STR
IXYS Integrated Circuits
1: $5.86
13,391In Stock
6,000On Order

Mfr. Part #
LCA110STR

Mouser Part #
849-LCA110STR

IXYS Integrated Circuits

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

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Datasheet

13,391In Stock

6,000On Order

Cut Tape

$5.86

$5.23

$5.00

$4.81

Reel

$4.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay

LCA701S
IXYS Integrated Circuits
1: $14.85
3,971In Stock
3,500On Order

Mfr. Part #
LCA701S

Mouser Part #
849-LCA701S

IXYS Integrated Circuits

Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay

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Datasheet

3,971In Stock

3,500On Order

$14.85

$13.23

$12.63

$12.02

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

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

LCA710
IXYS Integrated Circuits
1: $14.39
5,501In Stock
5,150On Order

Mfr. Part #
LCA710

Mouser Part #
849-LCA710

IXYS Integrated Circuits

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

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Datasheet

5,501In Stock

5,150On Order

$14.39

$13.54

$12.12

$11.68

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: $13.92
4,237In Stock
400Expected 2026-08-06

Mfr. Part #
LCA710S

Mouser Part #
849-LCA710S

IXYS Integrated Circuits

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

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Datasheet

4,237In Stock

400Expected 2026-08-06

$13.92

$12.41

$11.85

$10.30

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: $13.31
7,359In Stock

Mfr. Part #
LCA710STR

Mouser Part #
849-LCA710STR

IXYS Integrated Circuits

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

Learn More

Datasheet

7,359In Stock

Cut Tape

$13.31

$11.85

$11.32

$10.93

View

Reel

$9.33

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: $16.29
4,208In Stock

Mfr. Part #
LCA715S

Mouser Part #
849-LCA715S

IXYS Integrated Circuits

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

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Datasheet

4,208In Stock

$16.29

$14.52

$13.87

$13.38

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: $15.57
11,819In Stock

Mfr. Part #
LCA715STR

Mouser Part #
849-LCA715STR

IXYS Integrated Circuits

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

Learn More

Datasheet

11,819In Stock

Cut Tape

$15.57

$13.87

$13.25

$12.79

View

Reel

$10.73

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: $13.74
2,907In Stock

Mfr. Part #
LCA717STR

Mouser Part #
849-LCA717STR

IXYS Integrated Circuits

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

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Datasheet

2,907In Stock

Cut Tape

$13.74

$12.24

$11.69

$11.29

View

Reel

$9.91

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: $14.49
3,005In Stock
3,700Expected 2026-11-13

Mfr. Part #
PLA140

Mouser Part #
849-PLA140

IXYS Integrated Circuits

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

Learn More

Datasheet

3,005In Stock

3,700Expected 2026-11-13

$14.49

$13.58

$12.07

$11.45

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: $9.22
11,962In Stock
32,000On Order

Mfr. Part #
PLA170STR

Mouser Part #
849-PLA170STR

IXYS Integrated Circuits

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

Learn More

Datasheet

11,962In Stock

32,000On Order

Cut Tape

$9.22

$8.22

$7.85

$7.57

Reel

$6.48

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: $4.22
2,398In Stock

Mfr. Part #
CPC1009NTR

Mouser Part #
849-CPC1009NTR

IXYS Integrated Circuits

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

Learn More

Datasheet

2,398In Stock

Cut Tape

$4.22

$3.84

$3.54

$3.44

Reel

$2.88

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: $5.89
5,060In Stock

Mfr. Part #
CPC1010N

Mouser Part #
849-CPC1010N

IXYS Integrated Circuits

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

Learn More

Datasheet

5,060In Stock

$5.89

$5.26

$5.01

$4.82

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: $4.58
3,956In Stock

Mfr. Part #
CPC1016N

Mouser Part #
849-CPC1016N

IXYS Integrated Circuits

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

Learn More

Datasheet

3,956In Stock

$4.58

$4.08

$3.89

$3.74

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: $7.52
24In Stock
17,600On Order

Mfr. Part #
CPC1020N

Mouser Part #
849-CPC1020N

IXYS Integrated Circuits

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

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Datasheet

24In Stock

17,600On Order

$7.52

$7.03

$6.44

$6.16

View

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: $4.13
5,369In Stock
2,500On Order

Mfr. Part #
CPC1025N

Mouser Part #
849-CPC1025N

IXYS Integrated Circuits

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

Learn More

Datasheet

5,369In Stock

2,500On Order

$4.13

$3.79

$3.54

$3.44

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: $5.41
3,642In Stock

Mfr. Part #
CPC1030NTR

Mouser Part #
849-CPC1030NTR

IXYS Integrated Circuits

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

Learn More

Datasheet

3,642In Stock

Cut Tape

$5.41

$4.84

$4.62

$4.44

View

Reel

$3.70

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: $5.08
3,597In Stock
2,000Expected 2026-09-11

Mfr. Part #
CPC1225NTR

Mouser Part #
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 2026-09-11

Cut Tape

$5.08

$4.54

$4.33

$4.16

View

Reel

$3.37

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: $5.41
1,283In Stock
700Expected 2026-08-20

Mfr. Part #
CPC1230N

Mouser Part #
849-CPC1230N

IXYS Integrated Circuits

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

Learn More

Datasheet

1,283In Stock

700Expected 2026-08-20

$5.41

$4.94

$4.55

$4.36

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

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

CPC1230NTR
IXYS Integrated Circuits
1: $4.92
3,560In Stock

Mfr. Part #
CPC1230NTR

Mouser Part #
849-CPC1230NTR

IXYS Integrated Circuits

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

Learn More

Datasheet

3,560In Stock

Cut Tape

$4.92

$4.39

$4.19

$4.00

View

Reel

$2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

PCB Mount

SOP-4

MOSFET

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

CPC1390G
IXYS Integrated Circuits
1: $6.28
1,023In Stock

Mfr. Part #
CPC1390G

Mouser Part #
849-CPC1390G

IXYS Integrated Circuits

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

Learn More

Datasheet

1,023In Stock

$6.28

$5.60

$5.34

$5.16

View

Min.: 1
Mult.: 1

PCB Mount

DIP-4

MOSFET

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

CPC1393G
IXYS Integrated Circuits
1: $6.84
1,890In Stock

Mfr. Part #
CPC1393G

Mouser Part #
849-CPC1393G

IXYS Integrated Circuits

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

Learn More

Datasheet

1,890In Stock

$6.84

$6.11

$5.83

$5.63

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: $6.54
4,580In Stock
4,000Expected 2026-10-05

Mfr. Part #
CPC1393GRTR

Mouser Part #
849-CPC1393GRTR

IXYS Integrated Circuits

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

Learn More

Datasheet

4,580In Stock

4,000Expected 2026-10-05

Cut Tape

$6.54

$5.83

$5.57

$5.37

View

Reel

$4.54

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

DIP-4

MOSFET

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

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