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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.

All Results (297)

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Part #

Solid State Relays - PCB Mount SPST iso PLUS-264

CPC1979J
IXYS Integrated Circuits
1: €30.18
5,100On Order

Mfr. Part No.
CPC1979J

Mouser Part No
849-CPC1979J

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST iso PLUS-264

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Datasheet

5,100On Order

€30.18

€27.85

€26.58

€25.88

View

Min.: 1
Mult.: 1

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

PAA140STR
IXYS Integrated Circuits
1: €12.30
4,000Expected 13/11/2026

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

4,000Expected 13/11/2026

Cut Tape

€12.30

€10.97

€10.47

€10.11

View

Reel

€8.08

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

PAA150STR
IXYS Integrated Circuits
1: €11.40
1,948Expected 10/09/2026

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

1,948Expected 10/09/2026

Cut Tape

€11.40

€10.17

€9.71

€9.37

View

Reel

€7.57

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

PLA110
IXYS Integrated Circuits
1: €6.42
4,141Expected 08/02/2027

Mfr. Part No.
PLA110

Mouser Part No
849-PLA110

IXYS Integrated Circuits

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

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Datasheet

4,141Expected 08/02/2027

€6.42

€5.72

€5.46

€5.27

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Min.: 1
Mult.: 1

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

PLA140STR
IXYS Integrated Circuits
1: €7.64
9,000Expected 08/02/2027

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

9,000Expected 08/02/2027

Cut Tape

€7.64

€6.80

€6.50

€6.28

View

Reel

€5.35

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

CPC1390GR
IXYS Integrated Circuits
1: €3.75
600Expected 09/10/2026

Mfr. Part No.
CPC1390GR

Mouser Part No
849-CPC1390GR

IXYS Integrated Circuits

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

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Datasheet

600Expected 09/10/2026

€3.75

€3.35

€3.19

€3.08

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Min.: 1
Mult.: 1

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

CPC1510GS
IXYS Integrated Circuits
1: €6.05
1,782Expected 16/10/2026

Mfr. Part No.
CPC1510GS

Mouser Part No
849-CPC1510GS

IXYS Integrated Circuits

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

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Datasheet

1,782Expected 16/10/2026

€6.05

€5.42

€5.00

€4.82

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay

CPC1563GS
IXYS Integrated Circuits
1: €5.56
1,100Expected 01/01/2027

Mfr. Part No.
CPC1563GS

Mouser Part No
849-CPC1563GS

IXYS Integrated Circuits

Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay

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Datasheet

1,100Expected 01/01/2027

€5.56

€4.96

€4.74

€4.57

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM T/R

CPC1593GSTR
IXYS Integrated Circuits
1: €5.36
1,752Expected 13/01/2027

Mfr. Part No.
CPC1593GSTR

Mouser Part No
849-CPC1593GSTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM T/R

Learn More

Datasheet

1,752Expected 13/01/2027

Cut Tape

€5.36

€4.77

€4.56

€4.40

Reel

€3.77

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Solid State Relays - PCB Mount DC Only Single Pole i4-PAC

CPC1779J
IXYS Integrated Circuits
1: €23.19
100Expected 04/12/2026

Mfr. Part No.
CPC1779J

Mouser Part No
849-CPC1779J

IXYS Integrated Circuits

Solid State Relays - PCB Mount DC Only Single Pole i4-PAC

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Datasheet

100Expected 04/12/2026

€23.19

€21.10

€20.13

€19.34

View

Min.: 1
Mult.: 1

Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch

CPC1943GS
IXYS Integrated Circuits
1: €11.93
250Expected 23/11/2026

Mfr. Part No.
CPC1943GS

Mouser Part No
849-CPC1943GS

IXYS Integrated Circuits

Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch

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Datasheet

250Expected 23/11/2026

€11.93

€8.31

€7.66

€7.23

€7.01

Min.: 1
Mult.: 1

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

LCA110LSTR
IXYS Integrated Circuits
1: €3.69
2,000Expected 19/10/2026

Mfr. Part No.
LCA110LSTR

Mouser Part No
849-LCA110LSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

2,000Expected 19/10/2026

Cut Tape

€3.69

€3.29

€3.14

€3.02

View

Reel

€2.51

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

LCA712STR
IXYS Integrated Circuits
1: €9.12
2,000Expected 18/01/2027

Mfr. Part No.
LCA712STR

Mouser Part No
849-LCA712STR

IXYS Integrated Circuits

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

Learn More

Datasheet

2,000Expected 18/01/2027

Cut Tape

€9.12

€8.13

€7.77

€7.50

View

Reel

€6.22

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

PAA140S
IXYS Integrated Circuits
1: €12.88
1,050On Order

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

1,050On Order

€12.88

€11.47

€10.96

€10.58

View

Min.: 1
Mult.: 1

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

PLA192S
IXYS Integrated Circuits
1: €6.22
1,825On Order

Mfr. Part No.
PLA192S

Mouser Part No
849-PLA192S

IXYS Integrated Circuits

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

Learn More

Datasheet

1,825On Order

€6.22

€6.11

€5.43

€5.15

View

Min.: 1
Mult.: 1

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

PLA192STR
IXYS Integrated Circuits
1: €5.82
1,981Expected 13/08/2026

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

1,981Expected 13/08/2026

Cut Tape

€5.82

€5.19

€4.95

€4.78

Reel

€4.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Solid State Relays - PCB Mount 250V Single Pole SIP Power Relay

CPC1926Y
IXYS Integrated Circuits
1: €9.25
100Expected 16/10/2026

Mfr. Part No.
CPC1926Y

Mouser Part No
849-CPC1926Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount 250V Single Pole SIP Power Relay

Learn More

Datasheet

100Expected 16/10/2026

€9.25

€8.25

€7.87

€7.59

View

Min.: 1
Mult.: 1

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

PLA140S
IXYS Integrated Circuits
1: €7.99
200Expected 25/01/2027

Mfr. Part No.
PLA140S

Mouser Part No
849-PLA140S

IXYS Integrated Circuits

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

Learn More

Datasheet

200Expected 25/01/2027

€7.99

€7.12

€6.80

€6.56

View

Min.: 1
Mult.: 1

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

CPC1394GV
IXYS Integrated Circuits
500: €2.49
2,200Factory Stock Available

Mfr. Part No.
CPC1394GV

Mouser Part No
849-CPC1394GV

IXYS Integrated Circuits

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

Learn More

Datasheet

2,200Factory Stock Available

More Info Available

€2.49

€2.45

Min.: 500
Mult.: 100

Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay

CPC1540G
IXYS Integrated Circuits
1: €5.04
950Factory Stock Available

Mfr. Part No.
CPC1540G

Mouser Part No
849-CPC1540G

IXYS Integrated Circuits

Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay

Learn More

Datasheet

950Factory Stock Available

More Info Available

€5.04

€4.49

€4.29

€4.14

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch

CPC1963GS
IXYS Integrated Circuits
1: €10.45
2,450Factory Stock Available

Mfr. Part No.
CPC1963GS

Mouser Part No
849-CPC1963GS

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch

Learn More

Datasheet

2,450Factory Stock Available

More Info Available

€10.45

€9.31

€8.89

€8.57

View

Min.: 1
Mult.: 1

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

LAA100LS
IXYS Integrated Circuits
1: €8.45
150Factory Stock Available

Mfr. Part No.
LAA100LS

Mouser Part No
849-LAA100LS

IXYS Integrated Circuits

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

Learn More

Datasheet

150Factory Stock Available

More Info Available

€8.45

€7.53

€7.20

€6.94

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA

LCA125S
IXYS Integrated Circuits
1: €6.62
750Factory Stock Available

Mfr. Part No.
LCA125S

Mouser Part No
849-LCA125S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA

Learn More

Datasheet

750Factory Stock Available

More Info Available

€6.62

€6.21

€5.79

€4.91

View

Min.: 1
Mult.: 1

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

OAA160STR
IXYS Integrated Circuits
1,000: €7.07
23,000Factory Stock Available

Mfr. Part No.
OAA160STR

Mouser Part No
849-OAA160STR

IXYS Integrated Circuits

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

Learn More

Datasheet

23,000Factory Stock Available

More Info Available

Reel

€7.07

Min.: 1,000
Mult.: 1,000

: 1,000

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

PAA190S
IXYS Integrated Circuits
100: €8.27
16,150Factory Stock Available

Mfr. Part No.
PAA190S

Mouser Part No
849-PAA190S

IXYS Integrated Circuits

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

Learn More

Datasheet

16,150Factory Stock Available

More Info Available

€8.27

€8.11

€7.95

Min.: 100
Mult.: 50

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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