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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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Part #

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

LCA127LS
IXYS Integrated Circuits
1: $5.53
65In Stock

Mfr. Part No.
LCA127LS

Mouser Part No
849-LCA127LS

IXYS Integrated Circuits

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

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Datasheet

65In Stock

$5.53

$5.18

$3.89

$3.84

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Min.: 1
Mult.: 1

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

LCA127S
IXYS Integrated Circuits
1: $5.02
113In Stock

Mfr. Part No.
LCA127S

Mouser Part No
849-LCA127S

IXYS Integrated Circuits

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

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Datasheet

113In Stock

$5.02

$4.59

$4.25

$4.09

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Min.: 1
Mult.: 1

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

LCA129
IXYS Integrated Circuits
1: $4.13
120In Stock

Mfr. Part No.
LCA129

Mouser Part No
849-LCA129

IXYS Integrated Circuits

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

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Datasheet

120In Stock

$4.13

$3.36

$3.31

$3.13

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Min.: 1
Mult.: 1

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

LCA182
IXYS Integrated Circuits
1: $3.75
111In Stock
250Expected 10/8/2026

Mfr. Part No.
LCA182

Mouser Part No
849-LCA182

IXYS Integrated Circuits

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

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Datasheet

111In Stock

250Expected 10/8/2026

$3.75

$3.07

$2.97

$2.84

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Min.: 1
Mult.: 1

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

LCA182S
IXYS Integrated Circuits
1: $3.71
346In Stock
250Expected 6/3/2026

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

346In Stock

250Expected 6/3/2026

$3.71

$3.31

$3.16

$3.02

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A

LCA710R
IXYS Integrated Circuits
1: $6.95
365In Stock

Mfr. Part No.
LCA710R

Mouser Part No
849-LCA710R

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A

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Datasheet

365In Stock

$6.95

$6.20

$5.91

$5.64

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Min.: 1
Mult.: 1

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

LCA712S
IXYS Integrated Circuits
1: $7.98
244In 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

244In Stock

$7.98

$6.32

$6.27

$6.00

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Min.: 1
Mult.: 1

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

LCA715
IXYS Integrated Circuits
1: $7.58
167In 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

167In Stock

$7.58

$7.13

$6.92

$6.05

$5.53

Min.: 1
Mult.: 1

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

LCA717
IXYS Integrated Circuits
1: $7.17
406In Stock

Mfr. Part No.
LCA717

Mouser Part No
849-LCA717

IXYS Integrated Circuits

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

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Datasheet

406In Stock

$7.17

$5.35

$4.93

$4.52

Quote

Min.: 1
Mult.: 1

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

LCA717S
IXYS Integrated Circuits
1: $7.17
364In Stock
450Expected 21/4/2026

Mfr. Part No.
LCA717S

Mouser Part No
849-LCA717S

IXYS Integrated Circuits

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

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Datasheet

364In Stock

450Expected 21/4/2026

$7.17

$5.46

$5.34

$5.17

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR

OAA160S
IXYS Integrated Circuits
1: $8.81
140In Stock

Mfr. Part No.
OAA160S

Mouser Part No
849-OAA160S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR

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Datasheet

140In Stock

$8.81

$7.85

$7.51

$7.23

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay

OMA160
IXYS Integrated Circuits
1: $4.57
234In Stock

Mfr. Part No.
OMA160

Mouser Part No
849-OMA160

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay

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Datasheet

234In Stock

$4.57

$3.93

$3.77

$3.57

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay

OMA160S
IXYS Integrated Circuits
1: $4.81
72In Stock

Mfr. Part No.
OMA160S

Mouser Part No
849-OMA160S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay

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Datasheet

72In Stock

$4.81

$3.95

$3.32

$3.28

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Min.: 1
Mult.: 1

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

PAA110LS
IXYS Integrated Circuits
1: $8.24
2In Stock

Mfr. Part No.
PAA110LS

Mouser Part No
849-PAA110LS

IXYS Integrated Circuits

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

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Datasheet

2In Stock

$8.24

$6.99

$6.71

$6.70

Min.: 1
Mult.: 1

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

PAA132
IXYS Integrated Circuits
1: $11.47
87In 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

87In Stock

$11.47

$10.43

$9.88

$8.87

View

Min.: 1
Mult.: 1

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

PAA140L
IXYS Integrated Circuits
1: $10.87
1In Stock

Mfr. Part No.
PAA140L

Mouser Part No
849-PAA140L

IXYS Integrated Circuits

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

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Datasheet

1In Stock

$10.87

$9.69

$9.26

$8.92

View

Min.: 1
Mult.: 1

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

PAA140LS
IXYS Integrated Circuits
1: $10.91
41In Stock

Mfr. Part No.
PAA140LS

Mouser Part No
849-PAA140LS

IXYS Integrated Circuits

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

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Datasheet

41In Stock

$10.91

$9.29

$8.95

$7.96

View

Min.: 1
Mult.: 1

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

PAA191
IXYS Integrated Circuits
1: $9.27
96In Stock

Mfr. Part No.
PAA191

Mouser Part No
849-PAA191

IXYS Integrated Circuits

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

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Datasheet

96In Stock

$9.27

$8.65

$8.63

$8.62

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount DPST-NO/NO 6PIN DIP

PAA193
IXYS Integrated Circuits
1: $8.02
91In Stock

Mfr. Part No.
PAA193

Mouser Part No
849-PAA193

IXYS Integrated Circuits

Solid State Relays - PCB Mount DPST-NO/NO 6PIN DIP

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Datasheet

91In Stock

$8.02

$7.14

$6.82

$6.59

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Dual 1-Form-A 600V 100mA SSR

PAA193S
IXYS Integrated Circuits
1: $7.85
285In Stock

Mfr. Part No.
PAA193S

Mouser Part No
849-PAA193S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 600V 100mA SSR

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Datasheet

285In Stock

$7.85

$7.01

$6.70

$6.45

View

Min.: 1
Mult.: 1

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

PLA110S
IXYS Integrated Circuits
1: $5.66
185In Stock

Mfr. Part No.
PLA110S

Mouser Part No
849-PLA110S

IXYS Integrated Circuits

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

Learn More

Datasheet

185In Stock

$5.66

$5.30

$4.23

$3.54

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA

PLA132
IXYS Integrated Circuits
1: $7.12
117In Stock

Mfr. Part No.
PLA132

Mouser Part No
849-PLA132

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA

Learn More

Datasheet

117In Stock

$7.12

$5.64

$5.32

$4.74

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA

PLA132S
IXYS Integrated Circuits
1: $6.76
326In Stock

Mfr. Part No.
PLA132S

Mouser Part No
849-PLA132S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA

Learn More

Datasheet

326In Stock

$6.76

$6.02

$5.75

$5.55

View

Min.: 1
Mult.: 1

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

PLA140L
IXYS Integrated Circuits
1: $6.82
97In Stock

Mfr. Part No.
PLA140L

Mouser Part No
849-PLA140L

IXYS Integrated Circuits

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

Learn More

Datasheet

97In Stock

$6.82

$5.62

$5.59

$4.43

View

Min.: 1
Mult.: 1

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

PLA140LS
IXYS Integrated Circuits
1: $6.82
69In Stock

Mfr. Part No.
PLA140LS

Mouser Part No
849-PLA140LS

IXYS Integrated Circuits

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

Learn More

Datasheet

69In Stock

$6.82

$5.62

$5.39

$4.89

View

Min.: 1
Mult.: 1

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

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

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