Optocouplers/Photocouplers – Mouser United Kingdom

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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: 298

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Part #

Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole

LAA127STR
IXYS Integrated Circuits
1: £4.48
1,149In Stock

Mfr. Part No.
LAA127STR

Mouser Part No
849-LAA127STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole

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Datasheet

1,149In Stock

Cut Tape

£4.48

£4.00

£3.82

£3.68

Reel

£3.13

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

LAA710STR
IXYS Integrated Circuits
1: £7.17
1,855In Stock

Mfr. Part No.
LAA710STR

Mouser Part No
849-LAA710STR

IXYS Integrated Circuits

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

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Datasheet

1,855In Stock

Cut Tape

£7.17

£6.39

£5.89

£5.69

View

Reel

£4.91

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

LCA110L
IXYS Integrated Circuits
1: £1.27
1,834In Stock

Mfr. Part No.
LCA110L

Mouser Part No
849-LCA110L

IXYS Integrated Circuits

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

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Datasheet

1,834In Stock

£1.27

£1.09

£1.01

£0.934

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

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

LCA110S
IXYS Integrated Circuits
1: £1.38
5,519In Stock

Mfr. Part No.
LCA110S

Mouser Part No
849-LCA110S

IXYS Integrated Circuits

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

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Datasheet

5,519In Stock

£1.38

£1.20

£1.16

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA

LCA120STR
IXYS Integrated Circuits
1: £2.34
3,352In Stock

Mfr. Part No.
LCA120STR

Mouser Part No
849-LCA120STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA

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Datasheet

3,352In Stock

Cut Tape

£2.34

£1.93

£1.85

£1.77

Reel

£1.41

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA

LCA127
IXYS Integrated Circuits
1: £2.87
3,073In Stock

Mfr. Part No.
LCA127

Mouser Part No
849-LCA127

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA

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Datasheet

3,073In Stock

£2.87

£2.69

£2.41

£2.33

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA

LCA127STR
IXYS Integrated Circuits
1: £2.69
1,039In Stock

Mfr. Part No.
LCA127STR

Mouser Part No
849-LCA127STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA

Learn More

Datasheet

1,039In Stock

Cut Tape

£2.69

£2.39

£2.29

£2.21

Reel

£1.89

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-6

MOSFET

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

LCA182STR
IXYS Integrated Circuits
1: £1.93
4,172In Stock

Mfr. Part No.
LCA182STR

Mouser Part No
849-LCA182STR

IXYS Integrated Circuits

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

Learn More

Datasheet

4,172In Stock

Cut Tape

£1.93

£1.73

£1.64

£1.59

Reel

£1.29

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount 1-Form-A SSR

LCA701
IXYS Integrated Circuits
1: £4.35
775In Stock

Mfr. Part No.
LCA701

Mouser Part No
849-LCA701

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A SSR

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Datasheet

775In Stock

£4.35

£3.88

£3.70

£3.57

View

Min.: 1
Mult.: 1

PCB Mount

MOSFET

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

LCA701STR
IXYS Integrated Circuits
1: £3.82
1,389In Stock
3,000Expected 29/07/2026

Mfr. Part No.
LCA701STR

Mouser Part No
849-LCA701STR

IXYS Integrated Circuits

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

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Datasheet

1,389In Stock

3,000Expected 29/07/2026

Cut Tape

£3.82

£3.14

£3.03

£2.89

Reel

£2.87

View

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

MOSFET

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

LCA710
IXYS Integrated Circuits
1: £3.69
3,246In Stock

Mfr. Part No.
LCA710

Mouser Part No
849-LCA710

IXYS Integrated Circuits

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

Learn More

Datasheet

3,246In Stock

£3.69

£3.13

£3.04

£2.65

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: £3.75
3,080In Stock

Mfr. Part No.
LCA710S

Mouser Part No
849-LCA710S

IXYS Integrated Circuits

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

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Datasheet

3,080In Stock

£3.75

£3.35

£3.20

£2.73

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

LCA715S
IXYS Integrated Circuits
1: £4.39
2,146In Stock
275Expected 12/02/2026

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

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Datasheet

2,146In Stock

275Expected 12/02/2026

£4.39

£3.91

£3.74

£3.61

£3.51

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

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

LCA717STR
IXYS Integrated Circuits
1: £3.70
924In 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

924In Stock

Cut Tape

£3.70

£3.30

£3.15

£3.04

View

Reel

£2.37

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR

PAA110STR
IXYS Integrated Circuits
1: £4.80
609In Stock
1,000Expected 18/08/2026

Mfr. Part No.
PAA110STR

Mouser Part No
849-PAA110STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR

Learn More

Datasheet

609In Stock

1,000Expected 18/08/2026

Cut Tape

£4.80

£4.46

£4.29

£4.18

Reel

£3.57

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-8

MOSFET

Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR

PAA132STR
IXYS Integrated Circuits
1: £6.43
1,233In Stock

Mfr. Part No.
PAA132STR

Mouser Part No
849-PAA132STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR

Learn More

Datasheet

1,233In Stock

Cut Tape

£6.43

£6.03

£5.37

£5.10

Reel

£3.66

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

PAA140
IXYS Integrated Circuits
1: £5.79
2,164In Stock

Mfr. Part No.
PAA140

Mouser Part No
849-PAA140

IXYS Integrated Circuits

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

Learn More

Datasheet

2,164In Stock

£5.79

£5.16

£4.93

£4.75

View

Min.: 1
Mult.: 1

PCB Mount

DIP-8

MOSFET

Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR

PAA140S
IXYS Integrated Circuits
1: £5.22
841In Stock

Mfr. Part No.
PAA140S

Mouser Part No
849-PAA140S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR

Learn More

Datasheet

841In Stock

£5.22

£4.73

£4.71

£4.70

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR

PAA140STR
IXYS Integrated Circuits
1: £5.55
1,758In Stock

Mfr. Part No.
PAA140STR

Mouser Part No
849-PAA140STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR

Learn More

Datasheet

1,758In Stock

Cut Tape

£5.55

£4.95

£4.72

£4.57

View

Reel

£3.64

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

PAA150STR
IXYS Integrated Circuits
1: £5.14
1,100In Stock

Mfr. Part No.
PAA150STR

Mouser Part No
849-PAA150STR

IXYS Integrated Circuits

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

Learn More

Datasheet

1,100In Stock

Cut Tape

£5.14

£4.58

£4.38

£4.23

Reel

£3.63

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

PLA110
IXYS Integrated Circuits
1: £2.90
4,263In Stock

Mfr. Part No.
PLA110

Mouser Part No
849-PLA110

IXYS Integrated Circuits

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

Learn More

Datasheet

4,263In Stock

£2.90

£2.38

£2.30

£2.17

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

PLA140LSTR
IXYS Integrated Circuits
1: £3.52
1,000In Stock

Mfr. Part No.
PLA140LSTR

Mouser Part No
849-PLA140LSTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

Learn More

Datasheet

1,000In Stock

Cut Tape

£3.52

£3.14

£3.00

£2.90

Reel

£2.55

View

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

PLA140STR
IXYS Integrated Circuits
1: £3.45
1,223In Stock
3,000On Order

Mfr. Part No.
PLA140STR

Mouser Part No
849-PLA140STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

Learn More

Datasheet

1,223In Stock

3,000On Order

Cut Tape

£3.45

£3.07

£2.93

£2.83

Reel

£2.44

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA

PLA150STR
IXYS Integrated Circuits
1: £3.40
2,000In Stock

Mfr. Part No.
PLA150STR

Mouser Part No
849-PLA150STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA

Learn More

Datasheet

2,000In Stock

Cut Tape

£3.40

£3.18

£2.82

£2.68

View

Reel

£2.30

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA

PLA160STR
IXYS Integrated Circuits
1: £3.20
2,209In Stock

Mfr. Part No.
PLA160STR

Mouser Part No
849-PLA160STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA

Learn More

Datasheet

2,209In Stock

Cut Tape

£3.20

£2.64

£2.55

£2.44

Reel

£2.26

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

PCB Mount

MOSFET

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

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