.hide-partial { max-height: none; } .show-more { display: none; }

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)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

PLA171P
IXYS Integrated Circuits
1: $6.94
1,131In Stock

Mfr. Part #
PLA171P

Mouser Part #
849-PLA171P

IXYS Integrated Circuits

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

Learn More

Datasheet

1,131In Stock

$6.94

$6.36

$6.31

$6.08

View

Min.: 1
Mult.: 1

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

PLA172PTR
IXYS Integrated Circuits
1: $9.69
429In Stock

Mfr. Part #
PLA172PTR

Mouser Part #
849-PLA172PTR

IXYS Integrated Circuits

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

Learn More

Datasheet

429In Stock

Cut Tape

$9.69

$8.64

$8.25

$7.97

View

Reel

$6.80

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

PLA191S
IXYS Integrated Circuits
1: $9.51
731In Stock

Mfr. Part #
PLA191S

Mouser Part #
849-PLA191S

IXYS Integrated Circuits

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

Learn More

Datasheet

731In Stock

$9.51

$8.47

$8.09

$7.81

View

Min.: 1
Mult.: 1

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

PLA192STR
IXYS Integrated Circuits
1: $6.77
475In Stock

Mfr. Part #
PLA192STR

Mouser Part #
849-PLA192STR

IXYS Integrated Circuits

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

Learn More

Datasheet

475In Stock

Cut Tape

$6.77

$6.03

$5.76

$5.56

Reel

$4.88

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

PLA193STR
IXYS Integrated Circuits
1: $6.14
1,719In Stock
2,000Expected 11/18/2026

Mfr. Part #
PLA193STR

Mouser Part #
849-PLA193STR

IXYS Integrated Circuits

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

Learn More

Datasheet

1,719In Stock

2,000Expected 11/18/2026

Cut Tape

$6.14

$5.47

$5.23

$5.05

Reel

$4.43

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

CPC1390G
IXYS Integrated Circuits
1: $4.36
523In Stock
600Expected 1/25/2027

Mfr. Part #
CPC1390G

Mouser Part #
849-CPC1390G

IXYS Integrated Circuits

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

Learn More

Datasheet

523In Stock

600Expected 1/25/2027

$4.36

$3.89

$3.71

$3.58

View

Min.: 1
Mult.: 1

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

CPC1390GRTR
IXYS Integrated Circuits
1: $4.16
57In Stock
11,000Expected 12/14/2026

Mfr. Part #
CPC1390GRTR

Mouser Part #
849-CPC1390GRTR

IXYS Integrated Circuits

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

Learn More

Datasheet

57In Stock

11,000Expected 12/14/2026

Cut Tape

$4.16

$3.72

$3.55

$3.41

Reel

$2.92

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

CPC1393GRTR
IXYS Integrated Circuits
1: $4.54
52In Stock
14,000On Order

Mfr. Part #
CPC1393GRTR

Mouser Part #
849-CPC1393GRTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

Learn More

Datasheet

52In Stock

14,000On Order

Cut Tape

$4.54

$4.05

$3.87

$3.73

View

Reel

$3.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

CPC1394GR
IXYS Integrated Circuits
1: $4.75
71In Stock
600Expected 12/14/2026

Mfr. Part #
CPC1394GR

Mouser Part #
849-CPC1394GR

IXYS Integrated Circuits

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

Learn More

Datasheet

71In Stock

600Expected 12/14/2026

$4.75

$4.24

$4.05

$3.99

View

Min.: 1
Mult.: 1

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

CPC1510G
IXYS Integrated Circuits
1: $6.81
268In Stock

Mfr. Part #
CPC1510G

Mouser Part #
849-CPC1510G

IXYS Integrated Circuits

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

Learn More

Datasheet

268In Stock

$6.81

$6.07

$5.80

$5.59

View

Min.: 1
Mult.: 1

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

CPC1510GSTR
IXYS Integrated Circuits
1: $6.71
2,240In Stock
9,000Expected 1/22/2027

Mfr. Part #
CPC1510GSTR

Mouser Part #
849-CPC1510GSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

2,240In Stock

9,000Expected 1/22/2027

Cut Tape

$6.71

$6.14

$5.65

$5.41

View

Reel

$4.66

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

CPC1540GS
IXYS Integrated Circuits
1: $6.19
280In 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

Learn More

Datasheet

280In Stock

2,950Expected 11/9/2026

$6.19

$5.80

$5.16

$4.92

View

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

Learn More

Datasheet

9In Stock

Cut Tape

$5.90

$4.99

$4.77

$4.60

Reel

$3.77

View

Min.: 1
Mult.: 1

: 1,000

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

CPC1560GSTR
IXYS Integrated Circuits
1: $7.86
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

Learn More

Datasheet

31In Stock

Cut Tape

$7.86

$7.19

$6.65

$6.34

View

Reel

$5.27

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

CPC1786J
IXYS Integrated Circuits
1: $27.44
43In Stock
75Expected 10/8/2026

Mfr. Part #
CPC1786J

Mouser Part #
849-CPC1786J

IXYS Integrated Circuits

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

Learn More

Datasheet

43In Stock

75Expected 10/8/2026

$27.44

$24.54

$23.42

$22.61

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 100V Single Pole SIP Power Relay

CPC1916Y
IXYS Integrated Circuits
1: $13.26
112In Stock
800Expected 11/20/2026

Mfr. Part #
CPC1916Y

Mouser Part #
849-CPC1916Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount 100V Single Pole SIP Power Relay

Learn More

Datasheet

112In Stock

800Expected 11/20/2026

$13.26

$11.82

$11.29

$10.90

$10.53

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

Learn More

Datasheet

105In Stock

$9.48

$7.06

$6.17

$5.25

View

Min.: 1
Mult.: 1

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

CPC1963G
IXYS Integrated Circuits
1: $12.61
162In Stock

Mfr. Part #
CPC1963G

Mouser Part #
849-CPC1963G

IXYS Integrated Circuits

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

Learn More

Datasheet

162In Stock

$12.61

$11.21

$10.65

$10.18

View

Min.: 1
Mult.: 1

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

CPC1967J
IXYS Integrated Circuits
1: $40.88
6In Stock
400On Order

Mfr. Part #
CPC1967J

Mouser Part #
849-CPC1967J

IXYS Integrated Circuits

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

Learn More

Datasheet

6In Stock

400On Order

$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 9/1/2026

Mfr. Part #
CPC1973Y

Mouser Part #
849-CPC1973Y

IXYS Integrated Circuits

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

Learn More

Datasheet

90In Stock

100Expected 9/1/2026

$10.25

$8.43

$7.17

$7.05

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount SPST-NO 4PIN SOP

CPC1978J
IXYS Integrated Circuits
1: $25.47
9In Stock
875On Order

Mfr. Part #
CPC1978J

Mouser Part #
849-CPC1978J

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 4PIN SOP

Learn More

Datasheet

9In Stock

875On Order

$25.47

$23.05

$21.92

$20.91

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount RELAY, SS ICS

CPC1983YE
IXYS Integrated Circuits
1: $10.34
8In Stock
19,550On Order

Mfr. Part #
CPC1983YE

Mouser Part #
849-CPC1983YE

IXYS Integrated Circuits

Solid State Relays - PCB Mount RELAY, SS ICS

Learn More

Datasheet

8In Stock

19,550On Order

$10.34

$9.21

$8.78

$8.48

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 100V 300mA Double Pole Relay

LAA108
IXYS Integrated Circuits
1: $5.32
381In Stock

Mfr. Part #
LAA108

Mouser Part #
849-LAA108

IXYS Integrated Circuits

Solid State Relays - PCB Mount 100V 300mA Double Pole Relay

Learn More

Datasheet

381In Stock

$5.32

$4.75

$4.53

$4.37

View

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

Learn More

Datasheet

96In Stock

$9.40

$8.38

$8.00

$7.72

View

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

Learn More

Datasheet

6In Stock

$8.92

$8.20

$8.00

$6.59

View

Min.: 1
Mult.: 1

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

All Results (297)

Customer Service Office

Company

Resources

Support

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

All Results (297)

Electromechanical

Optoelectronics