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 Single-Pole Relay 400V 250mA

PLA191S
IXYS Integrated Circuits
1: 61,02 kr.
731In Stock

Mfr. Part No.
PLA191S

Mouser Part No
849-PLA191S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

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Datasheet

731In Stock

61,02 kr.

54,31 kr.

51,92 kr.

50,13 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

250 mA

400 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)

PLA191

Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA

PLA192STR
IXYS Integrated Circuits
1: 43,42 kr.
1.981In Stock

Mfr. Part No.
PLA192STR

Mouser Part No
849-PLA192STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA

Learn More

Datasheet

1.981In Stock

Cut Tape

43,42 kr.

38,72 kr.

36,93 kr.

35,66 kr.

Reel

31,33 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Reel, Cut Tape, MouseReel

PCB Mount

150 mA

600 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)

PLA192

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

PLA193STR
IXYS Integrated Circuits
1: 39,39 kr.
1.719In Stock
2.000Expected 18/11/2026

Mfr. Part No.
PLA193STR

Mouser Part No
849-PLA193STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

Learn More

Datasheet

1.719In Stock

2.000Expected 18/11/2026

Cut Tape

39,39 kr.

35,06 kr.

33,57 kr.

32,38 kr.

Reel

28,42 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Reel, Cut Tape, MouseReel

PCB Mount

100 mA

600 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)

PLA193

Solid State Relays - PCB Mount RELAY, SS ICS

CPC1511Y
IXYS Integrated Circuits
1: 74,67 kr.
38In Stock

Mfr. Part No.
CPC1511Y

Mouser Part No
576-CPC1511Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount RELAY, SS ICS

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Datasheet

38In Stock

74,67 kr.

69,97 kr.

62,14 kr.

55,80 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

450 mA

230 VDC

1 Form A (SPST-NO)

SIP-4

MOSFET

- 40 C

+ 85 C

CPC1511

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

CPC1225N
IXYS Integrated Circuits
1: 22,23 kr.
1In Stock
800Expected 25/11/2026

Mfr. Part No.
CPC1225N

Mouser Part No
849-CPC1225N

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

Learn More

Datasheet

1In Stock

800Expected 25/11/2026

22,23 kr.

21,19 kr.

20,22 kr.

19,40 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

120 mA

400 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SOP-4

MOSFET

50 mA

- 40 C

+ 85 C

4.089 mm (0.161 in)

3.81 mm (0.15 in)

2.184 mm (0.086 in)

CPC1225

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

CPC1390G
IXYS Integrated Circuits
1: 27,98 kr.
523In Stock
600Expected 25/01/2027

Mfr. Part No.
CPC1390G

Mouser Part No
849-CPC1390G

IXYS Integrated Circuits

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

Learn More

Datasheet

523In Stock

600Expected 25/01/2027

27,98 kr.

24,99 kr.

23,80 kr.

22,98 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

140 mA

400 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

DIP-4

MOSFET

50 mA

- 40 C

+ 85 C

6.35 mm (0.25 in)

4.572 mm (0.18 in)

3.3 mm (0.13 in)

CPC1390

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

CPC1390GRTR
IXYS Integrated Circuits
1: 26,71 kr.
242In Stock
11.000Expected 14/10/2026

Mfr. Part No.
CPC1390GRTR

Mouser Part No
849-CPC1390GRTR

IXYS Integrated Circuits

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

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Datasheet

242In Stock

11.000Expected 14/10/2026

Cut Tape

26,71 kr.

23,87 kr.

22,75 kr.

21,86 kr.

Reel

18,72 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Reel, Cut Tape, MouseReel

PCB Mount

140 mA

400 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-4

MOSFET

50 mA

- 40 C

+ 85 C

6.35 mm (0.25 in)

4.572 mm (0.18 in)

3.3 mm (0.13 in)

CPC1390

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

CPC1393GRTR
IXYS Integrated Circuits
1: 29,09 kr.
487In Stock
14.000On Order

Mfr. Part No.
CPC1393GRTR

Mouser Part No
849-CPC1393GRTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

Learn More

Datasheet

487In Stock

14.000On Order

Cut Tape

29,09 kr.

25,96 kr.

24,84 kr.

23,95 kr.

View

Reel

20,44 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Reel, Cut Tape, MouseReel

PCB Mount

90 mA

600 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

DIP-4

MOSFET

50 mA

- 40 C

+ 85 C

6.35 mm (0.25 in)

4.572 mm (0.18 in)

3.3 mm (0.13 in)

CPC1393

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

CPC1394GR
IXYS Integrated Circuits
1: 28,87 kr.
137In Stock
600On Order

Mfr. Part No.
CPC1394GR

Mouser Part No
849-CPC1394GR

IXYS Integrated Circuits

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

Learn More

Datasheet

137In Stock

600On Order

28,87 kr.

26,63 kr.

25,59 kr.

24,69 kr.

23,05 kr.

Min.: 1
Mult.: 1

Tube

PCB Mount

120 mA

600 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-4

MOSFET

50 mA

- 40 C

+ 85 C

6.35 mm (0.25 in)

4.572 mm (0.18 in)

3.3 mm (0.13 in)

CPC1394

Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay

CPC1510G
IXYS Integrated Circuits
1: 43,72 kr.
268In Stock

Mfr. Part No.
CPC1510G

Mouser Part No
849-CPC1510G

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay

Learn More

Datasheet

268In Stock

43,72 kr.

38,94 kr.

37,23 kr.

35,88 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

200 mA

250 VDC

1 Form A (SPST-NO)

1.15 VDC to 1.5 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)

CPC1510

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

CPC1540GS
IXYS Integrated Circuits
1: 39,69 kr.
280In Stock
2.950On Order

Mfr. Part No.
CPC1540GS

Mouser Part No
849-CPC1540GS

IXYS Integrated Circuits

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

Learn More

Datasheet

280In Stock

2.950On Order

39,69 kr.

38,79 kr.

Min.: 1
Mult.: 1

Tube

PCB Mount

120 mA

350 VDC

1 Form A (SPST-NO)

900 mVDC to 1.5 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)

CPC1540

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

CPC1540GSTR
IXYS Integrated Circuits
1: 37,82 kr.
9In Stock

Mfr. Part No.
CPC1540GSTR

Mouser Part No
849-CPC1540GSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

9In Stock

Cut Tape

37,82 kr.

32,00 kr.

30,59 kr.

29,54 kr.

Reel

24,17 kr.

View

Min.: 1
Mult.: 1

: 1.000

Reel, Cut Tape

PCB Mount

120 mA

350 VDC

1 Form A (SPST-NO)

900 mVDC to 1.5 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)

CPC1540

Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay

CPC1560GSTR
IXYS Integrated Circuits
1: 50,43 kr.
31In Stock

Mfr. Part No.
CPC1560GSTR

Mouser Part No
849-CPC1560GSTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay

Learn More

Datasheet

31In Stock

Cut Tape

50,43 kr.

46,10 kr.

42,67 kr.

40,66 kr.

View

Reel

33,79 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Reel, Cut Tape, MouseReel

PCB Mount

600 mA

60 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

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)

CPC1560

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

CPC1786J
IXYS Integrated Circuits
1: 176,06 kr.
43In Stock
75Expected 25/09/2026

Mfr. Part No.
CPC1786J

Mouser Part No
849-CPC1786J

IXYS Integrated Circuits

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

Learn More

Datasheet

43In Stock

75Expected 25/09/2026

176,06 kr.

157,41 kr.

150,24 kr.

145,02 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

650 mA

1 kVDC

1 Form A (SPST-NO)

900 mVDC to 1.56 VDC

i4-PAC

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)

CPC1786

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

CPC1963G
IXYS Integrated Circuits
1: 80,87 kr.
162In 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

162In Stock

80,87 kr.

71,91 kr.

68,33 kr.

65,28 kr.

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 400V Single Pole 400V Power Relay

CPC1967J
IXYS Integrated Circuits
1: 262,29 kr.
6In Stock
400On Order

Mfr. Part No.
CPC1967J

Mouser Part No
849-CPC1967J

IXYS Integrated Circuits

Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay

Learn More

Datasheet

6In Stock

400On Order

262,29 kr.

232,38 kr.

221,26 kr.

211,12 kr.

Min.: 1
Mult.: 1

Tube

PCB Mount

1.35 A

400 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

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)

CPC1967

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

CPC1978J
IXYS Integrated Circuits
1: 163,37 kr.
9In Stock
550On Order

Mfr. Part No.
CPC1978J

Mouser Part No
849-CPC1978J

IXYS Integrated Circuits

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

Learn More

Datasheet

9In Stock

550On Order

163,37 kr.

147,86 kr.

140,62 kr.

134,13 kr.

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: 68,86 kr.
22In Stock
5.250On Order

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

22In Stock

5.250On Order

68,86 kr.

67,51 kr.

57,96 kr.

55,43 kr.

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 RELAY, SS ICS

CPC1983YE
IXYS Integrated Circuits
1: 66,24 kr.
16In Stock
19.550On Order

Mfr. Part No.
CPC1983YE

Mouser Part No
849-CPC1983YE

IXYS Integrated Circuits

Solid State Relays - PCB Mount RELAY, SS ICS

Learn More

Datasheet

16In Stock

19.550On Order

66,24 kr.

59,08 kr.

56,32 kr.

54,38 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

500 mA

600 VDC

1 Form A (SPST-NO)

900 mVDC to 1.5 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 100V 300mA Double Pole Relay

LAA108
IXYS Integrated Circuits
1: 34,17 kr.
381In 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

381In Stock

34,17 kr.

30,51 kr.

29,09 kr.

28,05 kr.

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 350V 120mA Dual Single-Pole

LAA110L
IXYS Integrated Circuits
1: 60,28 kr.
96In Stock

Mfr. Part No.
LAA110L

Mouser Part No
849-LAA110L

IXYS Integrated Circuits

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

Learn More

Datasheet

96In Stock

60,28 kr.

53,79 kr.

51,32 kr.

49,53 kr.

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

LAA110LS
IXYS Integrated Circuits
1: 57,22 kr.
6In Stock

Mfr. Part No.
LAA110LS

Mouser Part No
849-LAA110LS

IXYS Integrated Circuits

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

Learn More

Datasheet

6In Stock

57,22 kr.

52,59 kr.

51,32 kr.

42,30 kr.

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 250V 170mA Dual Single-Pole

LAA120
IXYS Integrated Circuits
1: 62,59 kr.
156In Stock

Mfr. Part No.
LAA120

Mouser Part No
849-LAA120

IXYS Integrated Circuits

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

Learn More

Datasheet

156In Stock

62,59 kr.

58,64 kr.

52,07 kr.

49,46 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

170 mA

250 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)

LAA120

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

LAA120S
IXYS Integrated Circuits
1: 57,52 kr.
3In Stock

Mfr. Part No.
LAA120S

Mouser Part No
849-LAA120S

IXYS Integrated Circuits

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

Learn More

Datasheet

3In Stock

57,52 kr.

51,32 kr.

49,01 kr.

47,30 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

170 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)

LAA120

Solid State Relays - PCB Mount DUAL POLE

LAA125
IXYS Integrated Circuits
1: 57,52 kr.
150In Stock

Mfr. Part No.
LAA125

Mouser Part No
849-LAA125

IXYS Integrated Circuits

Solid State Relays - PCB Mount DUAL POLE

Learn More

Datasheet

150In Stock

57,52 kr.

51,32 kr.

49,01 kr.

47,30 kr.

View

Min.: 1
Mult.: 1

Tube

PCB Mount

170 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)

LAA125

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