Solid State Relays - PCB Mount – Mouser United Kingdom

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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 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

Tube

PCB Mount

9 A

60 VDC

1 Form A (SPST-NO)

900 mVDC to 1.56 VDC

i4-PAC

MOSFET

50 mA

- 40 C

+ 85 C

19.914 mm (0.784 in)

5.029 mm (0.198 in)

26.162 mm (1.03 in)

CPC1709

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

CPC1718J
IXYS Integrated Circuits
1: £7.11
2,020In 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

2,020In Stock

£7.11

£6.33

£6.03

£5.82

View

Min.: 1
Mult.: 1

Tube

PCB Mount

6.75 A

100 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

i4-PAC

MOSFET

100 mA

- 40 C

+ 85 C

19.914 mm (0.784 in)

5.029 mm (0.198 in)

26.162 mm (1.03 in)

CPC1718

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

View

Min.: 1
Mult.: 1

Tube

PCB Mount

3.4 A

250 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

i4-PAC

MOSFET

100 mA

- 40 C

+ 85 C

19.914 mm (0.784 in)

5.029 mm (0.198 in)

26.162 mm (1.03 in)

CPC1727

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

View

Min.: 1
Mult.: 1

Tube

PCB Mount

2 A

60 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

ISOPLUS264

MOSFET

50 mA

- 40 C

+ 85 C

21.082 mm (0.83 in)

3.302 mm (0.13 in)

10.16 mm (0.4 in)

CPC1906

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

CPC1907B
IXYS Integrated Circuits
1: £4.20
3,155In 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

3,155In Stock

5,325On Order

£4.20

£3.07

£2.94

£2.88

View

Min.: 1
Mult.: 1

Tube

PCB Mount

6 A

60 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SOIC-8

MOSFET

50 mA

- 40 C

+ 85 C

21.082 mm (0.83 in)

3.302 mm (0.13 in)

10.16 mm (0.4 in)

CPC1907

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

View

Min.: 1
Mult.: 1

Tube

PCB Mount

6.5 A

60 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

ISOPLUS264

MOSFET

100 mA

- 40 C

+ 85 C

19.914 mm (0.784 in)

5.029 mm (0.198 in)

26.162 mm (1.03 in)

CPC1909

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

Learn More

Datasheet

986In Stock

475Expected 16/07/2026

£4.53

£4.32

£4.31

£4.22

View

Min.: 1
Mult.: 1

Tube

PCB Mount

2.5 A

100 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

ISOPLUS264

MOSFET

50 mA

- 40 C

+ 85 C

21.082 mm (0.83 in)

3.302 mm (0.13 in)

10.16 mm (0.4 in)

CPC1916

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

Tube

PCB Mount

700 mA

250 VDC

1 Form A (SPST-NO)

900 mVDC to 1.56 VDC

ISOPLUS264

MOSFET

50 mA

- 40 C

+ 85 C

21.082 mm (0.83 in)

3.302 mm (0.13 in)

10.16 mm (0.4 in)

CPC1926

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

Learn More

Datasheet

298In Stock

£12.44

£11.08

£10.21

£9.86

View

Min.: 1
Mult.: 1

Tube

PCB Mount

2.7 A

250 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

ISOPLUS264

MOSFET

100 mA

- 40 C

+ 85 C

19.914 mm (0.784 in)

5.029 mm (0.198 in)

26.162 mm (1.03 in)

CPC1927

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

Learn More

Datasheet

2,522In Stock

£3.68

£3.29

£3.00

£2.92

View

Min.: 1
Mult.: 1

Tube

PCB Mount

3 A

20 VAC to 240 VAC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

ISOPLUS264

SCR

50 mA

- 40 C

+ 85 C

21.082 mm (0.83 in)

3.302 mm (0.13 in)

10.16 mm (0.4 in)

CPC1966

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

Learn More

Datasheet

3,148In Stock

£5.25

£4.68

£4.46

£4.43

Min.: 1
Mult.: 1

Tube

PCB Mount

3 A

20 VAC to 240 VAC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SIP-4

SCR

50 mA

- 40 C

+ 85 C

21.082 mm (0.83 in)

3.302 mm (0.13 in)

10.16 mm (0.4 in)

CPC1964B

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

Learn More

Datasheet

475In Stock

£17.26

£15.37

£14.49

£14.02

View

Min.: 1
Mult.: 1

Tube

PCB Mount

2 A

500 VDC

1 Form A (SPST-NO)

900 mVDC to 1.56 VDC

ISOPLUS264

MOSFET

100 mA

- 40 C

+ 85 C

19.914 mm (0.784 in)

5.029 mm (0.198 in)

26.162 mm (1.03 in)

CPC1968

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

Learn More

Datasheet

422In Stock

824Expected 30/04/2026

£8.86

£7.89

£7.53

£7.27

View

Min.: 1
Mult.: 1

Tube

PCB Mount

1.25 A

600 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

ISOPLUS264

MOSFET

100 mA

- 40 C

+ 85 C

19.914 mm (0.784 in)

5.029 mm (0.198 in)

20.879 mm (0.822 in)

CPC1977

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

Learn More

Datasheet

378In Stock

£9.87

£8.80

£8.39

£8.11

View

Min.: 1
Mult.: 1

Tube

PCB Mount

750 mA

800 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

ISOPLUS264

MOSFET

100 mA

- 40 C

+ 85 C

19.914 mm (0.784 in)

5.029 mm (0.198 in)

20.879 mm (0.822 in)

CPC1978

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

Learn More

Datasheet

1,504In Stock

£3.97

£3.27

£3.15

£3.01

View

Min.: 1
Mult.: 1

Tube

PCB Mount

500 mA

600 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SIP-4

MOSFET

50 mA

- 40 C

+ 85 C

21.082 mm (0.83 in)

3.302 mm (0.13 in)

10.16 mm (0.4 in)

CPC1983

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

Learn More

Datasheet

339In Stock

£7.80

£6.96

£6.63

£6.41

View

Min.: 1
Mult.: 1

Tube

PCB Mount

2 A

60 VDC

2 Form A (DPST-NO)

900 mVDC to 1.4 VDC

SOIC-8

MOSFET

50 mA

- 40 C

+ 85 C

21.082 mm (0.83 in)

10.16 mm (0.4 in)

3.302 mm (0.13 in)

CPC2907B

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

Learn More

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

Reel, Cut Tape, MouseReel

PCB Mount

300 mA

100 VDC

2 Form A (DPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-8

MOSFET

50 mA

- 40 C

+ 85 C

9.652 mm (0.38 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LAA108

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

Learn More

Datasheet

3,243In Stock

£3.56

£3.18

£3.02

£2.69

View

Min.: 1
Mult.: 1

Tube

PCB Mount

120 mA

350 VDC

2 Form A (DPST-NO)

900 mVDC to 1.4 VDC

DIP-8

MOSFET

50 mA

- 40 C

+ 85 C

9.652 mm (0.38 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LAA110

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

Reel, Cut Tape, MouseReel

PCB Mount

120 mA

350 VDC

2 Form A (DPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-8

MOSFET

50 mA

- 40 C

+ 85 C

9.652 mm (0.38 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LAA110

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

Tube

PCB Mount

120 mA

350 VDC

2 Form A (DPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-8

MOSFET

50 mA

- 40 C

+ 85 C

9.652 mm (0.38 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LAA110

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

Reel, Cut Tape, MouseReel

PCB Mount

120 mA

350 VDC

2 Form A (DPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-8

MOSFET

50 mA

- 40 C

+ 85 C

9.652 mm (0.38 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LAA110

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

LAA127STR
IXYS Integrated Circuits
1: £4.48
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

Learn More

Datasheet

1,149In Stock

Cut Tape

£4.48

£4.00

£3.82

£3.68

Reel

£3.13

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Reel, Cut Tape, MouseReel

PCB Mount

200 mA

250 VDC

2 Form A (DPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-8

MOSFET

50 mA

- 40 C

+ 85 C

9.652 mm (0.38 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LAA127

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

LAA710STR
IXYS Integrated Circuits
1: £7.17
1,855In Stock

Mfr. Part No.
LAA710STR

Mouser Part No
849-LAA710STR

IXYS Integrated Circuits

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

Learn More

Datasheet

1,855In Stock

Cut Tape

£7.17

£6.39

£5.89

£5.69

View

Reel

£4.91

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Reel, Cut Tape, MouseReel

PCB Mount

1 A

60 VDC

2 Form A (DPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-8

MOSFET

50 mA

- 40 C

+ 85 C

9.652 mm (0.38 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LAA710

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

LCA110L
IXYS Integrated Circuits
1: £1.27
1,834In Stock

Mfr. Part No.
LCA110L

Mouser Part No
849-LCA110L

IXYS Integrated Circuits

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

Learn More

Datasheet

1,834In Stock

£1.27

£1.09

£1.01

£0.934

Min.: 1
Mult.: 1

Tube

PCB Mount

120 mA

350 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

DIP-6

MOSFET

50 mA

- 40 C

+ 85 C

8.382 mm (0.33 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LCA110

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

LCA110S
IXYS Integrated Circuits
1: £1.38
5,519In Stock

Mfr. Part No.
LCA110S

Mouser Part No
849-LCA110S

IXYS Integrated Circuits

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

Learn More

Datasheet

5,519In Stock

£1.38

£1.20

£1.16

Min.: 1
Mult.: 1

Tube

PCB Mount

120 mA

350 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-6

MOSFET

50 mA

- 40 C

+ 85 C

8.382 mm (0.33 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

LCA110

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

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50 mA
75 mA
90 mA
100 mA
120 mA
130 mA
140 mA
150 mA
170 mA
180 mA
200 mA
250 mA
300 mA
400 mA
450 mA
500 mA
600 mA
650 mA
700 mA
750 mA

CPC10
CPC1002
CPC1004
CPC1006
CPC1008
CPC1009
CPC1014
CPC1016
CPC1017
CPC1018
CPC1019
CPC1020
CPC1025
CPC1030
CPC1035
CPC1225
CPC1230
CPC1330
CPC1390
CPC1393