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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 1-Form-A 250V 200mA Solid State Relay

CPC1510G
IXYS Integrated Circuits
1: $6.81
293In Stock

Mfr. Part #
CPC1510G

Mouser Part #
849-CPC1510G

IXYS Integrated Circuits

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

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Datasheet

293In Stock

$6.81

$6.07

$5.80

$5.59

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Min.: 1
Mult.: 1

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

CPC1540GS
IXYS Integrated Circuits
1: $6.19
29In Stock
2,950Expected 11/9/2026

Mfr. Part #
CPC1540GS

Mouser Part #
849-CPC1540GS

IXYS Integrated Circuits

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

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Datasheet

29In Stock

2,950Expected 11/9/2026

$6.19

$5.80

$5.16

$4.92

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Min.: 1
Mult.: 1

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

CPC1540GSTR
IXYS Integrated Circuits
1: $5.90
9In Stock

Mfr. Part #
CPC1540GSTR

Mouser Part #
849-CPC1540GSTR

IXYS Integrated Circuits

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

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Datasheet

9In Stock

Cut Tape

$5.90

$4.99

$4.77

$4.60

Reel

$3.77

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Min.: 1
Mult.: 1

: 1,000

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

CPC1560GSTR
IXYS Integrated Circuits
1: $7.64
31In Stock

Mfr. Part #
CPC1560GSTR

Mouser Part #
849-CPC1560GSTR

IXYS Integrated Circuits

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

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Datasheet

31In Stock

Cut Tape

$7.64

$6.99

$6.43

$6.16

View

Reel

$5.21

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

CPC1786J
IXYS Integrated Circuits
1: $27.54
43In Stock
75Expected 6/23/2027

Mfr. Part #
CPC1786J

Mouser Part #
849-CPC1786J

IXYS Integrated Circuits

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

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Datasheet

43In Stock

75Expected 6/23/2027

$27.54

$25.01

$23.78

$22.62

Min.: 1
Mult.: 1

Triac & SCR Output Optocouplers 400V, 1mA AC Solid State Relay

CPC1945G
IXYS Integrated Circuits
1: $9.48
105In Stock

Mfr. Part #
CPC1945G

Mouser Part #
849-CPC1945G

IXYS Integrated Circuits

Triac & SCR Output Optocouplers 400V, 1mA AC Solid State Relay

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Datasheet

105In Stock

$9.48

$7.06

$6.17

$5.25

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay

CPC1967J
IXYS Integrated Circuits
1: $40.88
6In Stock
400Expected 6/7/2027

Mfr. Part #
CPC1967J

Mouser Part #
849-CPC1967J

IXYS Integrated Circuits

Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay

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Datasheet

6In Stock

400Expected 6/7/2027

$40.88

$36.22

$34.49

$32.91

Min.: 1
Mult.: 1

Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay

CPC1973Y
IXYS Integrated Circuits
1: $10.25
90In Stock
100Expected 1/20/2027

Mfr. Part #
CPC1973Y

Mouser Part #
849-CPC1973Y

IXYS Integrated Circuits

Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay

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Datasheet

90In Stock

100Expected 1/20/2027

$10.25

$8.43

$7.34

$7.05

Min.: 1
Mult.: 1

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

CPC1983B
IXYS Integrated Circuits
1: $10.50
50In Stock
100Expected 9/2/2026

Mfr. Part #
CPC1983B

Mouser Part #
849-CPC1983B

IXYS Integrated Circuits

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

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Datasheet

50In Stock

100Expected 9/2/2026

$10.50

$9.36

$8.93

$8.62

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation

CPC1983Y
IXYS Integrated Circuits
1: $10.73
22In Stock
5,250On Order

Mfr. Part #
CPC1983Y

Mouser Part #
849-CPC1983Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation

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Datasheet

22In Stock

5,250On Order

$10.73

$10.52

$9.03

$8.64

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount RELAY, SS ICS

CPC1983YE
IXYS Integrated Circuits
1: $10.33
22In Stock
19,550On Order

Mfr. Part #
CPC1983YE

Mouser Part #
849-CPC1983YE

IXYS Integrated Circuits

Solid State Relays - PCB Mount RELAY, SS ICS

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Datasheet

22In Stock

19,550On Order

$10.33

$9.21

$8.78

$8.48

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Min.: 1
Mult.: 1

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

LAA110L
IXYS Integrated Circuits
1: $9.40
96In Stock

Mfr. Part #
LAA110L

Mouser Part #
849-LAA110L

IXYS Integrated Circuits

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

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Datasheet

96In Stock

$9.40

$8.38

$8.00

$7.72

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Min.: 1
Mult.: 1

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

LAA110LS
IXYS Integrated Circuits
1: $8.92
6In Stock

Mfr. Part #
LAA110LS

Mouser Part #
849-LAA110LS

IXYS Integrated Circuits

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

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Datasheet

6In Stock

$8.92

$8.20

$8.00

$6.59

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Min.: 1
Mult.: 1

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

LAA120
IXYS Integrated Circuits
1: $9.75
156In Stock

Mfr. Part #
LAA120

Mouser Part #
849-LAA120

IXYS Integrated Circuits

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

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Datasheet

156In Stock

$9.75

$9.14

$8.12

$7.71

View

Min.: 1
Mult.: 1

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

LAA120S
IXYS Integrated Circuits
1: $8.97
3In Stock

Mfr. Part #
LAA120S

Mouser Part #
849-LAA120S

IXYS Integrated Circuits

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

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Datasheet

3In Stock

$8.97

$8.00

$7.64

$7.37

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount DUAL POLE

LAA125
IXYS Integrated Circuits
1: $8.97
150In Stock

Mfr. Part #
LAA125

Mouser Part #
849-LAA125

IXYS Integrated Circuits

Solid State Relays - PCB Mount DUAL POLE

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Datasheet

150In Stock

$8.97

$8.00

$7.64

$7.37

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole

LAA125LS
IXYS Integrated Circuits
1: $10.62
83In Stock

Mfr. Part #
LAA125LS

Mouser Part #
849-LAA125LS

IXYS Integrated Circuits

Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole

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Datasheet

83In Stock

$10.62

$9.95

$8.85

$8.39

View

Min.: 1
Mult.: 1

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

LAA127LS
IXYS Integrated Circuits
1: $12.57
90In Stock

Mfr. Part #
LAA127LS

Mouser Part #
849-LAA127LS

IXYS Integrated Circuits

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

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Datasheet

90In Stock

$12.57

$11.17

$10.61

$10.15

View

Min.: 1
Mult.: 1

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

LCA110LS
IXYS Integrated Circuits
1: $4.49
30In Stock

Mfr. Part #
LCA110LS

Mouser Part #
849-LCA110LS

IXYS Integrated Circuits

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

Learn More

Datasheet

30In Stock

$4.49

$4.00

$3.82

$3.68

View

Min.: 1
Mult.: 1

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

LCA120L
IXYS Integrated Circuits
1: $6.21
90In Stock

Mfr. Part #
LCA120L

Mouser Part #
849-LCA120L

IXYS Integrated Circuits

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

Learn More

Datasheet

90In Stock

$6.21

$5.53

$5.29

$5.10

View

Min.: 1
Mult.: 1

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

LCA120LS
IXYS Integrated Circuits
1: $6.64
84In Stock

Mfr. Part #
LCA120LS

Mouser Part #
849-LCA120LS

IXYS Integrated Circuits

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

Learn More

Datasheet

84In Stock

$6.64

$6.23

$5.54

$5.25

View

Min.: 1
Mult.: 1

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

LCA120S
IXYS Integrated Circuits
1: $6.26
67In Stock

Mfr. Part #
LCA120S

Mouser Part #
849-LCA120S

IXYS Integrated Circuits

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

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Datasheet

67In Stock

$6.26

$5.58

$5.33

$5.14

View

Min.: 1
Mult.: 1

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

LCA127LS
IXYS Integrated Circuits
1: $7.41
14In Stock

Mfr. Part #
LCA127LS

Mouser Part #
849-LCA127LS

IXYS Integrated Circuits

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

Learn More

Datasheet

14In Stock

$7.41

$6.60

$6.31

$6.08

View

Min.: 1
Mult.: 1

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

LCA127S
IXYS Integrated Circuits
1: $7.25
93In Stock

Mfr. Part #
LCA127S

Mouser Part #
849-LCA127S

IXYS Integrated Circuits

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

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Datasheet

93In Stock

$7.25

$6.46

$6.17

$5.95

View

Min.: 1
Mult.: 1

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

LCA182
IXYS Integrated Circuits
1: $5.34
150In Stock

Mfr. Part #
LCA182

Mouser Part #
849-LCA182

IXYS Integrated Circuits

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

Learn More

Datasheet

150In Stock

$5.34

$5.01

$4.45

$4.28

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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