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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; 60V, 4ADC 2500Vrms Isolation

CPC1706Y
IXYS Integrated Circuits
1: £2.63
4,192In Stock

Mfr. Part No.
CPC1706Y

Mouser Part No
849-CPC1706Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation

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Datasheet

4,192In Stock

£2.63

£2.21

£2.12

£2.03

View

Min.: 1
Mult.: 1

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

CPC1708J
IXYS Integrated Circuits
1: £8.27
607In 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

607In Stock

£8.27

£7.75

£6.50

£6.27

View

Min.: 1
Mult.: 1

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

CPC1709J
IXYS Integrated Circuits
1: £6.63
2,085In Stock

Mfr. Part No.
CPC1709J

Mouser Part No
849-CPC1709J

IXYS Integrated Circuits

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

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Datasheet

2,085In Stock

£6.63

£5.90

£5.26

£5.16

View

Min.: 1
Mult.: 1

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

CPC1718J
IXYS Integrated Circuits
1: £7.11
2,032In Stock

Mfr. Part No.
CPC1718J

Mouser Part No
849-CPC1718J

IXYS Integrated Circuits

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

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Datasheet

2,032In Stock

£7.11

£6.33

£6.03

£5.82

View

Min.: 1
Mult.: 1

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

CPC1727J
IXYS Integrated Circuits
1: £8.97
543In 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

543In Stock

£8.97

£7.99

£7.62

£7.36

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Min.: 1
Mult.: 1

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

CPC1906Y
IXYS Integrated Circuits
1: £4.85
548In Stock

Mfr. Part No.
CPC1906Y

Mouser Part No
849-CPC1906Y

IXYS Integrated Circuits

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

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Datasheet

548In Stock

£4.85

£4.33

£4.13

£3.99

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay

CPC1907B
IXYS Integrated Circuits
1: £4.20
3,158In Stock
5,325On Order

Mfr. Part No.
CPC1907B

Mouser Part No
849-CPC1907B

IXYS Integrated Circuits

Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay

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Datasheet

3,158In Stock

5,325On Order

£4.20

£3.07

£2.94

£2.88

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay

CPC1909J
IXYS Integrated Circuits
1: £8.41
1,131In Stock

Mfr. Part No.
CPC1909J

Mouser Part No
849-CPC1909J

IXYS Integrated Circuits

Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay

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Datasheet

1,131In Stock

£8.41

£7.49

£7.16

£6.91

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Min.: 1
Mult.: 1

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

CPC1916Y
IXYS Integrated Circuits
1: £4.53
986In Stock
475Expected 16/07/2026

Mfr. Part No.
CPC1916Y

Mouser Part No
849-CPC1916Y

IXYS Integrated Circuits

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

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Datasheet

986In Stock

475Expected 16/07/2026

£4.53

£4.32

£4.31

£4.22

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Min.: 1
Mult.: 1

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

CPC1926Y
IXYS Integrated Circuits
1: £4.44
1,287In Stock

Mfr. Part No.
CPC1926Y

Mouser Part No
849-CPC1926Y

IXYS Integrated Circuits

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

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Datasheet

1,287In Stock

£4.44

£4.16

£3.69

£3.54

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount SP, NO ISOPLUS-264

CPC1927J
IXYS Integrated Circuits
1: £12.44
298In Stock

Mfr. Part No.
CPC1927J

Mouser Part No
849-CPC1927J

IXYS Integrated Circuits

Solid State Relays - PCB Mount SP, NO ISOPLUS-264

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Datasheet

298In Stock

£12.44

£11.08

£10.21

£9.86

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 8-Pin Power SOIC

CPC1966B
IXYS Integrated Circuits
1: £3.68
2,522In Stock

Mfr. Part No.
CPC1966B

Mouser Part No
849-CPC1966B

IXYS Integrated Circuits

Solid State Relays - PCB Mount 8-Pin Power SOIC

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Datasheet

2,522In Stock

£3.68

£3.29

£3.00

£2.92

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out

CPC1966YX6
IXYS Integrated Circuits
1: £5.25
3,148In Stock

Mfr. Part No.
CPC1966YX6

Mouser Part No
849-CPC1966YX6

IXYS Integrated Circuits

Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out

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Datasheet

3,148In Stock

£5.25

£4.68

£4.46

£4.43

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay

CPC1968J
IXYS Integrated Circuits
1: £17.26
475In Stock

Mfr. Part No.
CPC1968J

Mouser Part No
849-CPC1968J

IXYS Integrated Circuits

Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay

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Datasheet

475In Stock

£17.26

£15.37

£14.49

£14.02

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Min.: 1
Mult.: 1

Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay

CPC1976Y
IXYS Integrated Circuits
1: £4.36
5,791In Stock

Mfr. Part No.
CPC1976Y

Mouser Part No
849-CPC1976Y

IXYS Integrated Circuits

Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay

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Datasheet

5,791In Stock

£4.36

Min.: 1
Mult.: 1

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

CPC1976YX6
IXYS Integrated Circuits
1: £4.84
555In 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

555In Stock

£4.84

£3.59

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount SPST i4-PAC 600V

CPC1977J
IXYS Integrated Circuits
1: £8.86
422In Stock
824Expected 30/04/2026

Mfr. Part No.
CPC1977J

Mouser Part No
849-CPC1977J

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST i4-PAC 600V

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Datasheet

422In Stock

824Expected 30/04/2026

£8.86

£7.89

£7.53

£7.27

View

Min.: 1
Mult.: 1

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

CPC1978J
IXYS Integrated Circuits
1: £9.87
378In Stock

Mfr. Part No.
CPC1978J

Mouser Part No
849-CPC1978J

IXYS Integrated Circuits

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

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Datasheet

378In Stock

£9.87

£8.80

£8.39

£8.11

View

Min.: 1
Mult.: 1

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

CPC1983Y
IXYS Integrated Circuits
1: £3.97
1,504In Stock

Mfr. Part No.
CPC1983Y

Mouser Part No
849-CPC1983Y

IXYS Integrated Circuits

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

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Datasheet

1,504In Stock

£3.97

£3.27

£3.15

£3.01

View

Min.: 1
Mult.: 1

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

CPC2907B
IXYS Integrated Circuits
1: £7.80
339In 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

339In Stock

£7.80

£6.96

£6.63

£6.41

View

Min.: 1
Mult.: 1

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

LAA108STR
IXYS Integrated Circuits
1: £1.97
1,706In Stock

Mfr. Part No.
LAA108STR

Mouser Part No
849-LAA108STR

IXYS Integrated Circuits

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

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Datasheet

1,706In Stock

Cut Tape

£1.97

£1.62

£1.57

£1.50

Reel

£1.47

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Solid State Relays - PCB Mount 120MA DPST 8-DIP

LAA110
IXYS Integrated Circuits
1: £3.56
3,243In Stock

Mfr. Part No.
LAA110

Mouser Part No
849-LAA110

IXYS Integrated Circuits

Solid State Relays - PCB Mount 120MA DPST 8-DIP

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Datasheet

3,243In Stock

£3.56

£3.18

£3.02

£2.69

View

Min.: 1
Mult.: 1

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

LAA110LSTR
IXYS Integrated Circuits
1: £3.48
931In 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

931In Stock

Cut Tape

£3.48

£3.11

£2.97

£2.87

Reel

£2.37

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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

LAA110S
IXYS Integrated Circuits
1: £3.56
1,888In Stock

Mfr. Part No.
LAA110S

Mouser Part No
849-LAA110S

IXYS Integrated Circuits

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

Learn More

Datasheet

1,888In Stock

£3.56

£3.18

£3.03

£2.92

View

Min.: 1
Mult.: 1

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

LAA110STR
IXYS Integrated Circuits
1: £3.40
1,312In Stock
3,000Expected 18/05/2026

Mfr. Part No.
LAA110STR

Mouser Part No
849-LAA110STR

IXYS Integrated Circuits

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

Learn More

Datasheet

1,312In Stock

3,000Expected 18/05/2026

Cut Tape

£3.40

£3.04

£2.90

£2.80

Reel

£2.40

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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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