Optocouplers/Photocouplers

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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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Types of Optocouplers/Photocouplers

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Results: 298

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Part #

Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay

CPC1014N
IXYS Integrated Circuits
1: $3.21
235,618In Stock

Mfr. Part No.
CPC1014N

Mouser Part No
849-CPC1014N

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay

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Datasheet

235,618In Stock

$3.21

$3.01

$2.68

$2.58

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount SPNO RELAY

CPC1017N
IXYS Integrated Circuits
1: $0.86
329,465In Stock

Mfr. Part No.
CPC1017N

Mouser Part No
849-CPC1017N

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPNO RELAY

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Datasheet

329,465In Stock

$0.86

$0.769

$0.74

$0.591

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount SPST iso PLUS-264

CPC1979J
IXYS Integrated Circuits
1: $40.17
804In Stock
350Expected 22/06/2026

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

804In Stock

350Expected 22/06/2026

$40.17

$38.15

$36.15

$34.14

View

Min.: 1
Mult.: 1

PCB Mount

ISOPLUS264

MOSFET

Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP

CPC1006N
IXYS Integrated Circuits
1: $1.25
172,262In Stock

Mfr. Part No.
CPC1006N

Mouser Part No
849-CPC1006N

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP

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Datasheet

172,262In Stock

$1.25

$1.11

$1.06

$1.03

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

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

CPC1025NTR
IXYS Integrated Circuits
1: $3.13
118,188In Stock

Mfr. Part No.
CPC1025NTR

Mouser Part No
849-CPC1025NTR

IXYS Integrated Circuits

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

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Datasheet

118,188In Stock

Cut Tape

$3.13

$2.93

$2.61

$2.52

Reel

$2.16

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole

LAA710S
IXYS Integrated Circuits
1: $20.70
5,799In Stock

Mfr. Part No.
LAA710S

Mouser Part No
849-LAA710S

IXYS Integrated Circuits

Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole

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Datasheet

5,799In Stock

$20.70

$18.40

$17.48

$16.56

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

PAA140
IXYS Integrated Circuits
1: $15.70
2,023In Stock

Mfr. Part No.
PAA140

Mouser Part No
849-PAA140

IXYS Integrated Circuits

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

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Datasheet

2,023In Stock

$15.70

$13.96

$13.26

$12.56

View

Min.: 1
Mult.: 1

PCB Mount

DIP-8

MOSFET

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

CPC1008N
IXYS Integrated Circuits
1: $1.65
84,989In Stock

Mfr. Part No.
CPC1008N

Mouser Part No
849-CPC1008N

IXYS Integrated Circuits

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

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Datasheet

84,989In Stock

$1.65

$1.48

$1.41

$1.36

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

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

CPC1035N
IXYS Integrated Circuits
1: $1.81
31,329In Stock

Mfr. Part No.
CPC1035N

Mouser Part No
849-CPC1035N

IXYS Integrated Circuits

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

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Datasheet

31,329In Stock

$1.81

$1.62

$1.54

$1.49

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

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

PAA191S
IXYS Integrated Circuits
1: $15.35
2,036In Stock

Mfr. Part No.
PAA191S

Mouser Part No
849-PAA191S

IXYS Integrated Circuits

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

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Datasheet

2,036In Stock

$15.35

$13.65

$12.96

$12.28

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay

CPC1988J
IXYS Integrated Circuits
1: $43.69
761In Stock

Mfr. Part No.
CPC1988J

Mouser Part No
849-CPC1988J

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay

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Datasheet

761In Stock

$43.69

$41.51

$39.33

$37.14

View

Min.: 1
Mult.: 1

PCB Mount

i4-PAC

MOSFET

Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR

CPC1009NTR
IXYS Integrated Circuits
1: $3.06
5,012In Stock

Mfr. Part No.
CPC1009NTR

Mouser Part No
849-CPC1009NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR

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Datasheet

5,012In Stock

Cut Tape

$3.06

$2.87

$2.55

$2.47

Reel

$2.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

PCB Mount

SOP-4

MOSFET

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

PAA193S
IXYS Integrated Circuits
1: $12.03
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

$12.03

$11.28

$10.03

$9.52

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

CPC1727J
IXYS Integrated Circuits
1: $22.98
510In Stock

Mfr. Part No.
CPC1727J

Mouser Part No
849-CPC1727J

IXYS Integrated Circuits

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

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Datasheet

510In Stock

$22.98

$21.13

$20.02

$18.91

View

Min.: 1
Mult.: 1

PCB Mount

i4-PAC

MOSFET

Triac & SCR Output Optocouplers AC SS Power Switch Dual Power SCR Out

CPC1976YX6
IXYS Integrated Circuits
1: $11.37
551In Stock

Mfr. Part No.
CPC1976YX6

Mouser Part No
849-CPC1976YX6

IXYS Integrated Circuits

Triac & SCR Output Optocouplers AC SS Power Switch Dual Power SCR Out

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Datasheet

551In Stock

$11.37

$8.25

$6.81

$6.17

View

Min.: 1
Mult.: 1

Through Hole

1 Channel

PhotoSCR

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

LAA127STR
IXYS Integrated Circuits
1: $11.96
1,149In Stock

Mfr. Part No.
LAA127STR

Mouser Part No
849-LAA127STR

IXYS Integrated Circuits

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

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Datasheet

1,149In Stock

Cut Tape

$11.96

$10.63

$10.10

$9.57

View

Reel

$8.11

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

PLA150
IXYS Integrated Circuits
1: $9.43
1,235In Stock

Mfr. Part No.
PLA150

Mouser Part No
849-PLA150

IXYS Integrated Circuits

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

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Datasheet

1,235In Stock

$9.43

$8.84

$7.85

$7.46

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

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

LAA110LSTR
IXYS Integrated Circuits
1: $9.75
813In Stock

Mfr. Part No.
LAA110LSTR

Mouser Part No
849-LAA110LSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

813In Stock

Cut Tape

$9.75

$9.14

$8.12

$7.71

View

Reel

$6.24

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

PAA110S
IXYS Integrated Circuits
1: $14.36
241In Stock

Mfr. Part No.
PAA110S

Mouser Part No
849-PAA110S

IXYS Integrated Circuits

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

Learn More

Datasheet

241In Stock

$14.36

$12.77

$12.13

$11.49

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

PAA150S
IXYS Integrated Circuits
1: $14.54
375In Stock

Mfr. Part No.
PAA150S

Mouser Part No
849-PAA150S

IXYS Integrated Circuits

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

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Datasheet

375In Stock

$14.54

$12.92

$12.28

$11.63

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

CPC1708J
IXYS Integrated Circuits
1: $20.63
600In Stock

Mfr. Part No.
CPC1708J

Mouser Part No
849-CPC1708J

IXYS Integrated Circuits

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

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Datasheet

600In Stock

$20.63

$18.34

$14.30

$13.77

View

Min.: 1
Mult.: 1

PCB Mount

i4-PAC

MOSFET

Solid State Relays - PCB Mount Dual Power Relay 60V, 1-Form-A

CPC2907B
IXYS Integrated Circuits
1: $14.80
308In Stock

Mfr. Part No.
CPC2907B

Mouser Part No
849-CPC2907B

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual Power Relay 60V, 1-Form-A

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Datasheet

308In Stock

$14.80

$13.03

$12.34

$12.32

View

Min.: 1
Mult.: 1

PCB Mount

SOIC-8

MOSFET

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

LAA710
IXYS Integrated Circuits
1: $20.70
820In Stock

Mfr. Part No.
LAA710

Mouser Part No
849-LAA710

IXYS Integrated Circuits

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

Learn More

Datasheet

820In Stock

$20.70

$18.40

$17.48

$16.56

View

Min.: 1
Mult.: 1

PCB Mount

DIP-8

MOSFET

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

LCA712
IXYS Integrated Circuits
1: $11.45
851In Stock

Mfr. Part No.
LCA712

Mouser Part No
849-LCA712

IXYS Integrated Circuits

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

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Datasheet

851In Stock

$11.45

$10.18

$9.67

$9.16

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

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

PLA132S
IXYS Integrated Circuits
1: $10.24
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

$10.24

$9.59

$8.53

$8.10

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

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

Types of Optocouplers/Photocouplers

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