.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 (298)

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; }

Select a category below to see filtering options and narrow down your search.

Part #

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

PLA170
IXYS Integrated Circuits
1: $4.81
965In 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

965In Stock

$4.81

$3.96

$3.73

$3.61

View

Min.: 1
Mult.: 1

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

PLA171P
IXYS Integrated Circuits
1: $5.32
1,598In 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

1,598In Stock

$5.32

$4.75

$4.53

$3.78

View

Min.: 1
Mult.: 1

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

PLA172PTR
IXYS Integrated Circuits
1: $6.96
814In 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

814In Stock

Cut Tape

$6.96

$6.21

$5.94

$5.73

Reel

$4.92

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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

PLA192STR
IXYS Integrated Circuits
1: $5.00
1,094In 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

1,094In Stock

Cut Tape

$5.00

$4.68

$4.17

$3.98

View

Reel

$3.43

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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

PLA193STR
IXYS Integrated Circuits
1: $4.41
1,119In Stock
1,000Expected 11/3/2026

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

1,119In Stock

1,000Expected 11/3/2026

Cut Tape

$4.41

$3.93

$3.75

$3.63

Reel

$3.06

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Solid State Relays - PCB Mount RELAY, SS ICS

CPC1511Y
IXYS Integrated Circuits
1: $7.62
101In Stock

Mfr. Part No.
CPC1511Y

Mouser Part No
576-CPC1511Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount RELAY, SS ICS

Learn More

Datasheet

101In Stock

$7.62

$6.78

$6.48

$6.26

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay

CPC1020NTR
IXYS Integrated Circuits
1: $3.64
76In Stock
58,000On Order

Mfr. Part No.
CPC1020NTR

Mouser Part No
849-CPC1020NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay

Learn More

Datasheet

76In Stock

58,000On Order

Cut Tape

$3.64

$3.54

$3.43

$3.27

View

Reel

$2.71

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

CPC1225N
IXYS Integrated Circuits
1: $2.52
165In Stock

Mfr. Part No.
CPC1225N

Mouser Part No
849-CPC1225N

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

Learn More

Datasheet

165In Stock

$2.52

$2.29

$2.18

$2.10

View

Min.: 1
Mult.: 1

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

CPC1330GR
IXYS Integrated Circuits
1: $2.36
245In Stock
500Expected 16/3/2026

Mfr. Part No.
CPC1330GR

Mouser Part No
849-CPC1330GR

IXYS Integrated Circuits

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

Learn More

Datasheet

245In Stock

500Expected 16/3/2026

$2.36

$2.32

$2.18

$2.11

View

Min.: 1
Mult.: 1

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

CPC1390G
IXYS Integrated Circuits
1: $3.13
502In Stock

Mfr. Part No.
CPC1390G

Mouser Part No
849-CPC1390G

IXYS Integrated Circuits

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

Learn More

Datasheet

502In Stock

$3.13

$2.59

$2.47

$2.40

View

Min.: 1
Mult.: 1

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

CPC1393GR
IXYS Integrated Circuits
1: $3.41
225In Stock
500Expected 13/2/2026

Mfr. Part No.
CPC1393GR

Mouser Part No
849-CPC1393GR

IXYS Integrated Circuits

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

Learn More

Datasheet

225In Stock

500Expected 13/2/2026

$3.41

$3.04

$2.91

$2.81

View

Min.: 1
Mult.: 1

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

CPC1393GV
IXYS Integrated Circuits
1: $2.47
57In Stock

Mfr. Part No.
CPC1393GV

Mouser Part No
849-CPC1393GV

IXYS Integrated Circuits

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

Learn More

Datasheet

57In Stock

$2.47

$2.14

$2.10

$2.02

View

Min.: 1
Mult.: 1

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

CPC1394G
IXYS Integrated Circuits
1: $3.41
872In Stock

Mfr. Part No.
CPC1394G

Mouser Part No
849-CPC1394G

IXYS Integrated Circuits

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

Learn More

Datasheet

872In Stock

$3.41

$3.04

$2.91

$2.81

View

Min.: 1
Mult.: 1

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

CPC1394GR
IXYS Integrated Circuits
1: $3.07
537In Stock
100Expected 31/3/2026

Mfr. Part No.
CPC1394GR

Mouser Part No
849-CPC1394GR

IXYS Integrated Circuits

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

Learn More

Datasheet

537In Stock

100Expected 31/3/2026

$3.07

$2.82

$2.67

$2.65

View

Min.: 1
Mult.: 1

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

CPC1540GSTR
IXYS Integrated Circuits
1: $4.04
13In Stock

Mfr. Part No.
CPC1540GSTR

Mouser Part No
849-CPC1540GSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

13In Stock

Cut Tape

$4.04

$3.66

$3.42

$3.31

View

Reel

$2.63

Min.: 1
Mult.: 1

Reel: 1,000

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

CPC1560G
IXYS Integrated Circuits
1: $5.77
248In Stock

Mfr. Part No.
CPC1560G

Mouser Part No
849-CPC1560G

IXYS Integrated Circuits

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

Learn More

Datasheet

248In Stock

$5.77

$4.57

$4.31

$3.84

View

Min.: 1
Mult.: 1

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

CPC1563GS
IXYS Integrated Circuits
1: $4.74
250In Stock

Mfr. Part No.
CPC1563GS

Mouser Part No
849-CPC1563GS

IXYS Integrated Circuits

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

Learn More

Datasheet

250In Stock

$4.74

$4.23

$4.04

$3.91

View

Min.: 1
Mult.: 1

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

CPC1593GS
IXYS Integrated Circuits
1: $4.81
275In Stock

Mfr. Part No.
CPC1593GS

Mouser Part No
849-CPC1593GS

IXYS Integrated Circuits

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

Learn More

Datasheet

275In Stock

$4.81

$4.50

$4.00

$3.82

View

Min.: 1
Mult.: 1

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

CPC1593GSTR
IXYS Integrated Circuits
1: $4.48
255In Stock

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

255In Stock

Cut Tape

$4.48

$3.99

$3.81

$3.68

Reel

$3.16

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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

CPC1726Y
IXYS Integrated Circuits
1: $5.60
562In Stock

Mfr. Part No.
CPC1726Y

Mouser Part No
849-CPC1726Y

IXYS Integrated Circuits

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

Learn More

Datasheet

562In Stock

$5.60

$4.42

$4.41

$4.13

View

Min.: 1
Mult.: 1

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

CPC1777J
IXYS Integrated Circuits
1: $16.67
1In Stock
200Expected 11/5/2026

Mfr. Part No.
CPC1777J

Mouser Part No
849-CPC1777J

IXYS Integrated Circuits

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

Learn More

Datasheet

1In Stock

200Expected 11/5/2026

$16.67

$14.50

$13.32

$12.75

View

Min.: 1
Mult.: 1

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

CPC1786J
IXYS Integrated Circuits
1: $19.78
90In Stock

Mfr. Part No.
CPC1786J

Mouser Part No
849-CPC1786J

IXYS Integrated Circuits

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

Learn More

Datasheet

90In Stock

$19.78

$17.63

$16.82

$16.78

View

Min.: 1
Mult.: 1

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

CPC1788J
IXYS Integrated Circuits
1: $19.42
60In Stock
100Expected 18/8/2026

Mfr. Part No.
CPC1788J

Mouser Part No
849-CPC1788J

IXYS Integrated Circuits

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

Learn More

Datasheet

60In Stock

100Expected 18/8/2026

$19.42

$17.31

$15.94

$15.39

View

Min.: 1
Mult.: 1

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

CPC1945G
IXYS Integrated Circuits
1: $6.60
242In Stock

Mfr. Part No.
CPC1945G

Mouser Part No
849-CPC1945G

IXYS Integrated Circuits

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

Learn More

Datasheet

242In Stock

$6.60

$5.32

$4.52

$4.02

Min.: 1
Mult.: 1

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

CPC1963G
IXYS Integrated Circuits
1: $8.10
30In Stock

Mfr. Part No.
CPC1963G

Mouser Part No
849-CPC1963G

IXYS Integrated Circuits

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

Learn More

Datasheet

30In Stock

$8.10

$7.23

$6.91

$6.66

View

Min.: 1
Mult.: 1

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

All Results (298)

Customer Service Office

Company

Resources

Support

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

All Results (298)

Electromechanical

Opto-electronics