Solid State Relays - PCB Mount

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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 SPST-NO 4PIN SIP

CPC1906Y
IXYS Integrated Circuits
1: $17.71
251In Stock

Mfr. Part No.
CPC1906Y

Mouser Part No
849-CPC1906Y

IXYS Integrated Circuits

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

Learn More

Datasheet

251In Stock

$17.71

$15.75

$14.95

$14.27

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: $16.70
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

$16.70

$16.08

$15.34

$14.81

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: $43.25
238In 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

238In Stock

$43.25

$38.84

$37.07

$35.80

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: $17.15
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

Learn More

Datasheet

202In Stock

$17.15

$15.01

$14.33

$13.84

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: $13.36
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

$13.36

$11.90

$11.36

$10.96

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 5 A 500 V Optic Iso Pwr Sol State Relay

CPC1968J
IXYS Integrated Circuits
1: $60.49
301In Stock
1,050On Order

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

301In Stock

1,050On Order

$60.49

$53.88

$51.44

$50.56

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: $31.67
808In Stock
425Expected 2/10/2026

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 2/10/2026

$31.67

$28.38

$26.94

$26.02

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 Dual Power Relay 60V, 1-Form-A

CPC2907B
IXYS Integrated Circuits
1: $27.38
211In 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

211In Stock

$27.38

$24.38

$23.28

$22.48

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

LAA108
IXYS Integrated Circuits
1: $7.24
581In Stock

Mfr. Part No.
LAA108

Mouser Part No
849-LAA108

IXYS Integrated Circuits

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

Learn More

Datasheet

581In Stock

$7.24

$6.46

$6.16

$5.94

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: $6.92
2,673In Stock
2,000Expected 12/2/2027

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 12/2/2027

Cut Tape

$6.92

$6.17

$5.89

$5.68

Reel

$4.84

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: $16.46
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

$16.46

$14.67

$14.01

$13.52

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: $28.17
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

$28.17

$25.04

$23.79

$22.52

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: $25.13
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

$25.13

$22.39

$21.38

$20.64

View

Reel

$17.73

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: $5.33
4,801In 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

4,801In Stock

17,250On Order

$5.33

$4.73

$4.39

$3.86

$3.85

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: $5.54
1,006In Stock
400Expected 13/8/2026

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 13/8/2026

$5.54

$5.18

$5.00

$4.81

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: $5.79
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

$5.79

$5.17

$4.94

$4.73

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: $8.45
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

$8.45

$7.52

$7.19

$7.09

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: $7.60
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

$7.60

$7.13

$6.72

$6.51

Reel

$5.33

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: $9.41
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

$9.41

$8.39

$8.01

$7.74

Reel

$6.58

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: $7.02
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

$7.02

$6.26

$5.97

$5.75

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: $6.77
5,435In Stock

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

5,435In Stock

Cut Tape

$6.77

$6.04

$5.77

$5.58

Reel

$4.73

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: $15.25
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

$15.25

$13.59

$12.97

$12.51

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: $14.63
2,734In Stock

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

2,734In Stock

Cut Tape

$14.63

$13.72

$12.20

$11.59

View

Reel

$9.66

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: $15.75
372In Stock
250Expected 13/8/2026

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 13/8/2026

$15.75

$14.04

$13.40

$12.72

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: $14.86
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

$14.86

$13.93

$12.38

$11.38

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

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