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 SPST-NO 6PIN DIP

LCA182
IXYS Integrated Circuits
1: $5.33
150Expected 07/08/2026

Mfr. Part No.
LCA182

Mouser Part No
849-LCA182

IXYS Integrated Circuits

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

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Datasheet

150Expected 07/08/2026

$5.33

$5.00

$4.44

$4.22

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

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

CPC1390GV
IXYS Integrated Circuits
500: $3.23
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1390GV

Mouser Part No
849-CPC1390GV

IXYS Integrated Circuits

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

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Datasheet

Non-Stocked Lead-Time 23 Weeks

$3.23

$3.12

Min.: 500
Mult.: 100

PCB Mount

SMD DIP-4

MOSFET

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

CPC1394GV
IXYS Integrated Circuits
500: $3.44
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1394GV

Mouser Part No
849-CPC1394GV

IXYS Integrated Circuits

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

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Datasheet

Non-Stocked Lead-Time 23 Weeks

$3.44

$3.32

Min.: 500
Mult.: 100

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

CPC1540G
IXYS Integrated Circuits
1: $5.86
Non-Stocked Lead-Time 34 Weeks

Mfr. Part No.
CPC1540G

Mouser Part No
849-CPC1540G

IXYS Integrated Circuits

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

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Datasheet

Non-Stocked Lead-Time 34 Weeks

$5.86

$5.22

$4.99

$4.81

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 60V, 1A, Single Pole, Normally Open Current Limiting Relay

CPC1561B
IXYS Integrated Circuits
1: $11.91
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1561B

Mouser Part No
849-CPC1561B

IXYS Integrated Circuits

Solid State Relays - PCB Mount 60V, 1A, Single Pole, Normally Open Current Limiting Relay

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Datasheet

Non-Stocked Lead-Time 23 Weeks

$11.91

$11.16

$9.92

$9.43

View

Min.: 1
Mult.: 1

PCB Mount

SOIC-16

MOSFET

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

CPC1563G
IXYS Integrated Circuits
500: $4.68
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1563G

Mouser Part No
849-CPC1563G

IXYS Integrated Circuits

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

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Datasheet

Non-Stocked Lead-Time 23 Weeks

$4.68

$4.52

Min.: 500
Mult.: 50

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

CPC1563GSTR
IXYS Integrated Circuits
1,000: $4.34
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1563GSTR

Mouser Part No
849-CPC1563GSTR

IXYS Integrated Circuits

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

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Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$4.34

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

: 1,000

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

CPC1943G
IXYS Integrated Circuits
250: $8.93
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1943G

Mouser Part No
849-CPC1943G

IXYS Integrated Circuits

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

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Datasheet

Non-Stocked Lead-Time 23 Weeks

$8.93

$8.14

$7.89

Quote

Min.: 250
Mult.: 50

Through Hole

DIP-6

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

CPC1943GS
IXYS Integrated Circuits
1: $13.86
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1943GS

Mouser Part No
849-CPC1943GS

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

$13.86

$10.75

$8.93

$8.14

View

Min.: 1
Mult.: 1

SMD/SMT

SMD-DIP-6

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

CPC1943GSTR
IXYS Integrated Circuits
1,000: $7.71
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1943GSTR

Mouser Part No
849-CPC1943GSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$7.71

Quote

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

: 1,000

SMD/SMT

DIP-6

Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch

CPC1961G
IXYS Integrated Circuits
1: $4.49
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1961G

Mouser Part No
849-CPC1961G

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch

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Datasheet

Non-Stocked Lead-Time 23 Weeks

$4.49

$4.01

$3.83

$3.68

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch

CPC1961GS
IXYS Integrated Circuits
1: $2.35
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1961GS

Mouser Part No
849-CPC1961GS

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch

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Datasheet

Non-Stocked Lead-Time 23 Weeks

$2.35

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch

CPC1961GSTR
IXYS Integrated Circuits
1,000: $3.00
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1961GSTR

Mouser Part No
849-CPC1961GSTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$3.00

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

: 1,000

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

CPC1963GS
IXYS Integrated Circuits
1: $12.60
Non-Stocked Lead-Time 23 Weeks

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

Non-Stocked Lead-Time 23 Weeks

$12.60

$11.20

$10.64

$10.08

View

Min.: 1
Mult.: 1

PCB Mount

SCR

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

CPC1963GSTR
IXYS Integrated Circuits
1,000: $8.14
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1963GSTR

Mouser Part No
849-CPC1963GSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$8.14

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

: 1,000

PCB Mount

SCR

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

LAA100
IXYS Integrated Circuits
250: $7.31
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA100

Mouser Part No
849-LAA100

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

$7.31

$6.33

$6.25

Min.: 250
Mult.: 50

PCB Mount

DIP-8

MOSFET

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

LAA100LS
IXYS Integrated Circuits
1: $10.73
Non-Stocked Lead-Time 23 Weeks

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

Non-Stocked Lead-Time 23 Weeks

$10.73

$10.06

$8.94

$8.49

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

LAA100S
IXYS Integrated Circuits
250: $7.28
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA100S

Mouser Part No
849-LAA100S

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

$7.28

$7.03

$6.79

Min.: 250
Mult.: 50

PCB Mount

SMD DIP-8

MOSFET

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

LAA100STR
IXYS Integrated Circuits
1,000: $6.46
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA100STR

Mouser Part No
849-LAA100STR

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$6.46

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

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

LAA120L
IXYS Integrated Circuits
1: $10.61
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA120L

Mouser Part No
849-LAA120L

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

$10.61

$9.94

$8.84

$8.39

View

Min.: 1
Mult.: 1

PCB Mount

DIP-8

MOSFET

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

LAA120LS
IXYS Integrated Circuits
1: $10.61
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA120LS

Mouser Part No
849-LAA120LS

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

$10.61

$9.94

$8.84

$8.39

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

LAA120LSTR
IXYS Integrated Circuits
1,000: $6.46
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA120LSTR

Mouser Part No
849-LAA120LSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$6.46

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

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

LAA120STR
IXYS Integrated Circuits
1,000: $5.99
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA120STR

Mouser Part No
849-LAA120STR

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$5.99

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

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

LAA125LSTR
IXYS Integrated Circuits
1,000: $6.46
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA125LSTR

Mouser Part No
849-LAA125LSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$6.46

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

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

LAA125STR
IXYS Integrated Circuits
1,000: $5.99
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
LAA125STR

Mouser Part No
849-LAA125STR

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$5.99

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

: 1,000

PCB Mount

SMD DIP-8

MOSFET

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

Types of Optocouplers/Photocouplers

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