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 SPST-NO 6PIN DIP

LCA120
IXYS Integrated Circuits
1: €5.34
167In Stock
4,750Expected 11/06/2026

Mfr. Part No.
LCA120

Mouser Part No
849-LCA120

IXYS Integrated Circuits

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

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Datasheet

167In Stock

4,750Expected 11/06/2026

€5.34

€4.76

€4.55

€4.48

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: €5.95
1,439In Stock

Mfr. Part No.
LCA127STR

Mouser Part No
849-LCA127STR

IXYS Integrated Circuits

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

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Datasheet

1,439In Stock

Cut Tape

€5.95

€5.31

€5.07

€4.89

Reel

€4.16

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-6

MOSFET

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

LCA182S
IXYS Integrated Circuits
1: €4.44
836In Stock

Mfr. Part No.
LCA182S

Mouser Part No
849-LCA182S

IXYS Integrated Circuits

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

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Datasheet

836In Stock

€4.44

€3.96

€3.78

€3.64

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

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

LCA182STR
IXYS Integrated Circuits
1: €4.28
1,435In Stock
4,000On Order

Mfr. Part No.
LCA182STR

Mouser Part No
849-LCA182STR

IXYS Integrated Circuits

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

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Datasheet

1,435In Stock

4,000On Order

Cut Tape

€4.28

€3.82

€3.65

€3.53

Reel

€2.99

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-6

MOSFET

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

LCA701
IXYS Integrated Circuits
1: €9.64
560In 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

560In Stock

€9.64

€8.59

€8.20

€7.91

View

Min.: 1
Mult.: 1

PCB Mount

MOSFET

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

LCA701S
IXYS Integrated Circuits
1: €8.87
730In Stock
7,000On Order

Mfr. Part No.
LCA701S

Mouser Part No
849-LCA701S

IXYS Integrated Circuits

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

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Datasheet

730In Stock

7,000On Order

€8.87

€7.90

€7.54

€7.28

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

LCA712S
IXYS Integrated Circuits
1: €9.55
199In Stock

Mfr. Part No.
LCA712S

Mouser Part No
849-LCA712S

IXYS Integrated Circuits

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

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Datasheet

199In Stock

€9.55

€8.51

€8.13

€7.84

View

Min.: 1
Mult.: 1

PCB Mount

MOSFET

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

LCA715
IXYS Integrated Circuits
1: €9.73
285In Stock

Mfr. Part No.
LCA715

Mouser Part No
849-LCA715

IXYS Integrated Circuits

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

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Datasheet

285In Stock

€9.73

€8.67

€8.28

€7.99

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

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

PAA110STR
IXYS Integrated Circuits
1: €11.27
1,609In Stock

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

1,609In Stock

Cut Tape

€11.27

€10.05

€9.60

€9.27

View

Reel

€7.96

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

PAA132
IXYS Integrated Circuits
1: €13.73
199In Stock

Mfr. Part No.
PAA132

Mouser Part No
849-PAA132

IXYS Integrated Circuits

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

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Datasheet

199In Stock

€13.73

€12.23

€11.68

€11.27

View

Min.: 1
Mult.: 1

PCB Mount

DIP-8

MOSFET

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

PAA132S
IXYS Integrated Circuits
1: €13.73
1,311In Stock

Mfr. Part No.
PAA132S

Mouser Part No
849-PAA132S

IXYS Integrated Circuits

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

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Datasheet

1,311In Stock

€13.73

€12.23

€11.68

€11.27

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

PAA132STR
IXYS Integrated Circuits
1: €13.82
1,216In 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

1,216In Stock

Cut Tape

€13.82

€12.29

€11.67

€11.06

View

Reel

€10.13

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

PAA140S
IXYS Integrated Circuits
1: €12.94
419In 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

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Datasheet

419In Stock

€12.94

€12.06

€11.46

€10.84

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

PLA110
IXYS Integrated Circuits
1: €6.42
2,708In 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

2,708In Stock

€6.42

€5.72

€5.46

€5.27

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA

PLA110STR
IXYS Integrated Circuits
1: €6.67
843In Stock
2,000On Order

Mfr. Part No.
PLA110STR

Mouser Part No
849-PLA110STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA

Learn More

Datasheet

843In Stock

2,000On Order

Cut Tape

€6.67

€6.24

€5.56

€5.27

Reel

€4.36

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-6

MOSFET

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

PLA140LSTR
IXYS Integrated Circuits
1: €8.50
2,000In 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

2,000In Stock

Cut Tape

€8.50

€7.96

€7.08

€6.73

Reel

€5.63

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

MOSFET

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

PLA150STR
IXYS Integrated Circuits
1: €7.20
1,884In 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

1,884In Stock

Cut Tape

€7.20

€6.42

€6.12

€5.92

Reel

€5.19

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-6

MOSFET

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

PLA160STR
IXYS Integrated Circuits
1: €7.68
2,049In 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

2,049In Stock

Cut Tape

€7.68

€7.20

€6.40

€6.08

Reel

€5.13

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

MOSFET

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

PLA170
IXYS Integrated Circuits
1: €5.76
820In Stock

Mfr. Part No.
PLA170

Mouser Part No
849-PLA170

IXYS Integrated Circuits

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

Learn More

Datasheet

820In Stock

€5.76

€5.13

€4.91

€4.73

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

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

PLA170S
IXYS Integrated Circuits
1: €6.14
596In Stock
550Expected 14/10/2026

Mfr. Part No.
PLA170S

Mouser Part No
849-PLA170S

IXYS Integrated Circuits

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

Learn More

Datasheet

596In Stock

550Expected 14/10/2026

€6.14

€5.75

€5.12

€4.85

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

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

PLA171P
IXYS Integrated Circuits
1: €6.96
1,545In Stock

Mfr. Part No.
PLA171P

Mouser Part No
849-PLA171P

IXYS Integrated Circuits

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

Learn More

Datasheet

1,545In Stock

€6.96

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

PLA171PTR
IXYS Integrated Circuits
1: €6.09
966In Stock

Mfr. Part No.
PLA171PTR

Mouser Part No
849-PLA171PTR

IXYS Integrated Circuits

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

Learn More

Datasheet

966In Stock

Cut Tape

€6.09

€5.43

€5.19

€5.01

Reel

€4.27

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-8

MOSFET

Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay

PLA172PTR
IXYS Integrated Circuits
1: €8.33
579In Stock

Mfr. Part No.
PLA172PTR

Mouser Part No
849-PLA172PTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay

Learn More

Datasheet

579In Stock

Cut Tape

€8.33

€7.43

€7.10

€6.85

Reel

€5.85

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA

PLA192STR
IXYS Integrated Circuits
1: €5.82
552In Stock

Mfr. Part No.
PLA192STR

Mouser Part No
849-PLA192STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA

Learn More

Datasheet

552In Stock

Cut Tape

€5.82

€5.19

€4.95

€4.78

Reel

€3.78

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

PLA193STR
IXYS Integrated Circuits
1: €5.28
1,719In Stock
2,000Expected 06/11/2026

Mfr. Part No.
PLA193STR

Mouser Part No
849-PLA193STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

Learn More

Datasheet

1,719In Stock

2,000Expected 06/11/2026

Cut Tape

€5.28

€4.70

€4.50

€4.34

Reel

€3.81

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-6

MOSFET

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

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