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

CPC1788J
IXYS Integrated Circuits
1: £20.16
197In Stock

Mfr. Part No.
CPC1788J

Mouser Part No
849-CPC1788J

IXYS Integrated Circuits

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

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Datasheet

197In Stock

£20.16

£18.40

£17.56

£16.78

View

Min.: 1
Mult.: 1

Tube

PCB Mount

1 A

1 kVDC

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)

CPC1788

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

CPC1906Y
IXYS Integrated Circuits
1: £9.78
251In 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

251In Stock

£9.78

£8.70

£8.25

£7.87

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 100V Single Pole SIP Power Relay

CPC1916Y
IXYS Integrated Circuits
1: £9.22
292In Stock
1,400On Order

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

292In Stock

1,400On Order

£9.22

£8.88

£8.47

£8.18

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 SP, NO ISOPLUS-264

CPC1927J
IXYS Integrated Circuits
1: £23.88
238In 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

238In Stock

£23.88

£21.44

£20.46

£19.76

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 600V, 0.5mA AC Power Switch

CPC1963G
IXYS Integrated Circuits
1: £9.46
202In Stock

Mfr. Part No.
CPC1963G

Mouser Part No
849-CPC1963G

IXYS Integrated Circuits

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

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Datasheet

202In Stock

£9.46

£8.28

£7.91

£7.64

View

Min.: 1
Mult.: 1

Tube

PCB Mount

500 mA

20 VAC to 260 VAC

1 Form A (SPST-NO)

900 mVDC to 1.5 VDC

SCR

50 mA

- 40 C

+ 85 C

9.652 mm (0.38 in)

3.302 mm (0.13 in)

6.35 mm (0.25 in)

CPC1963

Solid State Relays - PCB Mount 8-Pin Power SOIC

CPC1966B
IXYS Integrated Circuits
1: £7.38
1,481In Stock
1,075Expected 18/12/2026

Mfr. Part No.
CPC1966B

Mouser Part No
849-CPC1966B

IXYS Integrated Circuits

Solid State Relays - PCB Mount 8-Pin Power SOIC

Learn More

Datasheet

1,481In Stock

1,075Expected 18/12/2026

£7.38

£6.57

£6.27

£6.05

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 SPST i4-PAC 600V

CPC1977J
IXYS Integrated Circuits
1: £17.49
808In Stock
425Expected 02/10/2026

Mfr. Part No.
CPC1977J

Mouser Part No
849-CPC1977J

IXYS Integrated Circuits

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

Learn More

Datasheet

808In Stock

425Expected 02/10/2026

£17.49

£15.67

£14.88

£14.36

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 100V 300mA Double Pole Relay

LAA108
IXYS Integrated Circuits
1: £4.00
581In Stock

Mfr. Part No.
LAA108

Mouser Part No
849-LAA108

IXYS Integrated Circuits

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

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Datasheet

581In Stock

£4.00

£3.57

£3.40

£3.28

View

Min.: 1
Mult.: 1

Tube

PCB Mount

300 mA

100 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)

LAA108

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

LAA108STR
IXYS Integrated Circuits
1: £3.82
2,673In Stock
2,000Expected 12/02/2027

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

2,673In Stock

2,000Expected 12/02/2027

Cut Tape

£3.82

£3.40

£3.25

£3.13

Reel

£2.67

View

MouseReel Available

Min.: 1
Mult.: 1

: 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 SPST 1 Form A

LAA127
IXYS Integrated Circuits
1: £9.09
611In Stock

Mfr. Part No.
LAA127

Mouser Part No
849-LAA127

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST 1 Form A

Learn More

Datasheet

611In Stock

£9.09

£8.10

£7.73

£7.46

View

Min.: 1
Mult.: 1

Tube

PCB Mount

200 mA

250 VDC

1 Form A (SPST-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)

LAA127

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

LAA710
IXYS Integrated Circuits
1: £15.55
748In 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

748In Stock

£15.55

£13.82

£13.13

£12.43

View

Min.: 1
Mult.: 1

Tube

PCB Mount

1 A

60 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)

LAA710

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

LAA710STR
IXYS Integrated Circuits
1: £13.87
126In Stock
3,000On Order

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

126In Stock

3,000On Order

Cut Tape

£13.87

£12.36

£11.80

£11.39

View

Reel

£9.79

MouseReel Available

Min.: 1
Mult.: 1

: 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 SPST-NO 6PIN DIP

LCA110
IXYS Integrated Circuits
1: £2.94
4,802In Stock
17,250On Order

Mfr. Part No.
LCA110

Mouser Part No
849-LCA110

IXYS Integrated Circuits

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

Learn More

Datasheet

4,802In Stock

17,250On Order

£2.94

£2.61

£2.43

£2.13

£2.12

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 Single-Pole Relay 350V 120mA

LCA110L
IXYS Integrated Circuits
1: £3.06
1,006In Stock
400Expected 13/08/2026

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

1,006In Stock

400Expected 13/08/2026

£3.06

£2.86

£2.76

£2.65

View

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: £3.20
5,229In 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

5,229In Stock

£3.20

£2.85

£2.72

£2.61

View

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

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

LCA120
IXYS Integrated Circuits
1: £4.66
3,671In Stock

Mfr. Part No.
LCA120

Mouser Part No
849-LCA120

IXYS Integrated Circuits

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

Learn More

Datasheet

3,671In Stock

£4.66

£4.16

£3.97

£3.91

View

Min.: 1
Mult.: 1

Tube

PCB Mount

170 mA

250 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)

LCA120

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

LCA120STR
IXYS Integrated Circuits
1: £4.20
2,596In Stock

Mfr. Part No.
LCA120STR

Mouser Part No
849-LCA120STR

IXYS Integrated Circuits

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

Learn More

Datasheet

2,596In Stock

Cut Tape

£4.20

£3.94

£3.71

£3.60

Reel

£2.94

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Reel, Cut Tape, MouseReel

PCB Mount

170 mA

250 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)

LCA120

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

LCA127STR
IXYS Integrated Circuits
1: £5.19
1,429In Stock

Mfr. Part No.
LCA127STR

Mouser Part No
849-LCA127STR

IXYS Integrated Circuits

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

Learn More

Datasheet

1,429In Stock

Cut Tape

£5.19

£4.64

£4.43

£4.27

Reel

£3.63

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Reel, Cut Tape, MouseReel

PCB Mount

200 mA

250 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)

LCA127

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

LCA182S
IXYS Integrated Circuits
1: £3.88
836In Stock

Mfr. Part No.
LCA182S

Mouser Part No
849-LCA182S

IXYS Integrated Circuits

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

Learn More

Datasheet

836In Stock

£3.88

£3.46

£3.30

£3.18

View

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)

LCA182

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

LCA182STR
IXYS Integrated Circuits
1: £3.74
3,435In Stock
2,000Expected 13/08/2026

Mfr. Part No.
LCA182STR

Mouser Part No
849-LCA182STR

IXYS Integrated Circuits

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

Learn More

Datasheet

3,435In Stock

2,000Expected 13/08/2026

Cut Tape

£3.74

£3.33

£3.19

£3.08

Reel

£2.61

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Reel, Cut Tape, MouseReel

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)

LCA182

Solid State Relays - PCB Mount 1-Form-A SSR

LCA701
IXYS Integrated Circuits
1: £8.42
560In Stock

Mfr. Part No.
LCA701

Mouser Part No
849-LCA701

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A SSR

Learn More

Datasheet

560In Stock

£8.42

£7.50

£7.16

£6.91

View

Min.: 1
Mult.: 1

Tube

PCB Mount

1.5 A

100 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

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)

LCA701

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

LCA701STR
IXYS Integrated Circuits
1: £8.08
1,734In Stock
1,000Expected 13/08/2026

Mfr. Part No.
LCA701STR

Mouser Part No
849-LCA701STR

IXYS Integrated Circuits

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

Learn More

Datasheet

1,734In Stock

1,000Expected 13/08/2026

Cut Tape

£8.08

£7.58

£6.73

£6.40

View

Reel

£5.33

Min.: 1
Mult.: 1

: 1,000

Reel, Cut Tape

PCB Mount

1.5 A

100 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

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)

LCA701

Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET

LCA715
IXYS Integrated Circuits
1: £8.70
372In Stock
250Expected 13/08/2026

Mfr. Part No.
LCA715

Mouser Part No
849-LCA715

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET

Learn More

Datasheet

372In Stock

250Expected 13/08/2026

£8.70

£7.75

£7.39

£7.02

View

Min.: 1
Mult.: 1

Tube

PCB Mount

2.2 A

60 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)

LCA715

Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay

LCA717S
IXYS Integrated Circuits
1: £8.21
537In Stock
1,500On Order

Mfr. Part No.
LCA717S

Mouser Part No
849-LCA717S

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay

Learn More

Datasheet

537In Stock

1,500On Order

£8.21

£7.69

£6.84

£6.29

View

Min.: 1
Mult.: 1

Tube

PCB Mount

2 A

30 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)

LCA717

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

PAA132
IXYS Integrated Circuits
1: £11.99
269In Stock

Mfr. Part No.
PAA132

Mouser Part No
849-PAA132

IXYS Integrated Circuits

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

Learn More

Datasheet

269In Stock

£11.99

£10.68

£10.20

£9.84

View

Min.: 1
Mult.: 1

Tube

PCB Mount

600 mA

60 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)

PAA132

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

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150 mA
170 mA
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300 mA
400 mA
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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