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

PLA191
IXYS Integrated Circuits
1: $5.15
34In Stock

Mfr. Part No.
PLA191

Mouser Part No
849-PLA191

IXYS Integrated Circuits

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

Learn More

Datasheet

34In Stock

$5.15

$4.08

$3.77

$3.33

View

Min.: 1
Mult.: 1

Tube

PCB Mount

250 mA

400 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)

PLA191

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

PLA191S
IXYS Integrated Circuits
1: $4.91
218In Stock

Mfr. Part No.
PLA191S

Mouser Part No
849-PLA191S

IXYS Integrated Circuits

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

Learn More

Datasheet

218In Stock

$4.91

$4.38

$4.19

$3.61

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

PLA192S
IXYS Integrated Circuits
1: $3.60
379In Stock

Mfr. Part No.
PLA192S

Mouser Part No
849-PLA192S

IXYS Integrated Circuits

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

Learn More

Datasheet

379In Stock

$3.60

$2.94

$2.89

$2.68

View

Min.: 1
Mult.: 1

Tube

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 SPST-NO 6PIN DIP

PLA193
IXYS Integrated Circuits
1: $3.32
61In Stock

Mfr. Part No.
PLA193

Mouser Part No
849-PLA193

IXYS Integrated Circuits

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

Learn More

Datasheet

61In Stock

$3.32

$2.73

$2.63

$2.44

View

Min.: 1
Mult.: 1

Tube

PCB Mount

100 mA

600 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)

PLA193

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

PLA193S
IXYS Integrated Circuits
1: $3.42
294In Stock

Mfr. Part No.
PLA193S

Mouser Part No
849-PLA193S

IXYS Integrated Circuits

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

Learn More

Datasheet

294In Stock

$3.42

$2.72

$2.59

$2.45

View

Min.: 1
Mult.: 1

Tube

PCB Mount

100 mA

600 VDC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SMD DIP-6

MOSFET

50 mA

8.382 mm (0.33 in)

6.35 mm (0.25 in)

3.302 mm (0.13 in)

PLA193

Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation

PLA194S
IXYS Integrated Circuits
1: $3.60
5In Stock

Mfr. Part No.
PLA194S

Mouser Part No
849-PLA194S

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation

Learn More

Datasheet

5In Stock

$3.60

$2.85

$2.69

$2.39

View

Min.: 1
Mult.: 1

Tube

PCB Mount

130 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)

PLA194

Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay

XAA170
IXYS Integrated Circuits
1: $4.72
90In Stock

Mfr. Part No.
XAA170

Mouser Part No
849-XAA170

IXYS Integrated Circuits

Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay

Learn More

Datasheet

90In Stock

$4.72

$4.43

$4.33

$3.40

View

Min.: 1
Mult.: 1

Tube

PCB Mount

100 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)

XAA170

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

XCA170
IXYS Integrated Circuits
1: $2.31
104In Stock

Mfr. Part No.
XCA170

Mouser Part No
849-XCA170

IXYS Integrated Circuits

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

Learn More

Datasheet

104In Stock

$2.31

$2.07

$1.98

$1.90

View

Min.: 1
Mult.: 1

Tube

PCB Mount

100 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)

XCA170

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

CPC1964BX6
IXYS Integrated Circuits
1: $4.80
15In Stock

Mfr. Part No.
CPC1964BX6

Mouser Part No
849-CPC1964BX6

IXYS Integrated Circuits

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

Learn More

Datasheet

15In Stock

$4.80

$3.32

View

Min.: 1
Mult.: 1

Tube

PCB Mount

1.5 A

20 VAC to 240 VAC

1 Form A (SPST-NO)

900 mVDC to 1.5 VDC

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 1-Form-A 250V 200mA Solid State Relay

CPC1510GSTR
IXYS Integrated Circuits
1: $3.41
14,780On Order

Mfr. Part No.
CPC1510GSTR

Mouser Part No
849-CPC1510GSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

14,780On Order

Cut Tape

$3.41

$3.12

$2.87

$2.77

View

Reel

$2.38

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Reel, Cut Tape, MouseReel

PCB Mount

200 mA

250 VDC

1 Form A (SPST-NO)

1.15 VDC 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)

CPC1510

Solid State Relays - PCB Mount AC Switch 3A, 600V

CPC1966Y
IXYS Integrated Circuits
1: $4.44
8,465Expected 16/04/2026

Mfr. Part No.
CPC1966Y

Mouser Part No
849-CPC1966Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount AC Switch 3A, 600V

Learn More

Datasheet

8,465Expected 16/04/2026

$4.44

$3.96

$3.66

$3.53

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

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)

CPC1966

Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET

LCA712STR
IXYS Integrated Circuits
1: $5.30
5,000Expected 02/04/2026

Mfr. Part No.
LCA712STR

Mouser Part No
849-LCA712STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET

Learn More

Datasheet

5,000Expected 02/04/2026

Cut Tape

$5.30

$4.89

$4.67

$4.51

Reel

$3.62

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Reel, Cut Tape, MouseReel

PCB Mount

1 A

60 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)

LCA712

Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay

CPC1965G
IXYS Integrated Circuits
1: $4.38
14,426On Order

Mfr. Part No.
CPC1965G

Mouser Part No
849-CPC1965G

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay

Learn More

Datasheet

14,426On Order

$4.38

$3.90

$3.66

$3.57

View

Min.: 1
Mult.: 1

Tube

PCB Mount

1 A

20 VAC to 260 VAC

1 Form A (SPST-NO)

900 mVDC to 1.4 VDC

SCR

100 mA

- 40 C

+ 85 C

19.202 mm (0.756 in)

3.302 mm (0.13 in)

6.35 mm (0.25 in)

CPC1965

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

CPC1393G
IXYS Integrated Circuits
1: $2.45
1,200Expected 17/08/2026

Mfr. Part No.
CPC1393G

Mouser Part No
849-CPC1393G

IXYS Integrated Circuits

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

Learn More

Datasheet

1,200Expected 17/08/2026

$2.45

$2.19

$2.09

$2.02

View

Min.: 1
Mult.: 1

Tube

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 250V 200mA Solid State Relay

CPC1510GS
IXYS Integrated Circuits
1: $3.52
2,100Expected 19/05/2026

Mfr. Part No.
CPC1510GS

Mouser Part No
849-CPC1510GS

IXYS Integrated Circuits

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

Learn More

Datasheet

2,100Expected 19/05/2026

$3.52

$2.90

$2.80

$2.67

$2.58

Min.: 1
Mult.: 1

Tube

PCB Mount

200 mA

250 VDC

1 Form A (SPST-NO)

1.15 VDC 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)

CPC1510

Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA

PLA110STR
IXYS Integrated Circuits
1: $3.24
1,697On Order

Mfr. Part No.
PLA110STR

Mouser Part No
849-PLA110STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA

Learn More

Datasheet

1,697On Order

Cut Tape

$3.24

$3.10

$2.84

$2.75

Reel

$2.20

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Reel, Cut Tape, MouseReel

PCB Mount

150 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)

PLA110

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

CPC1390GR
IXYS Integrated Circuits
1: $2.25
271Expected 19/05/2026

Mfr. Part No.
CPC1390GR

Mouser Part No
849-CPC1390GR

IXYS Integrated Circuits

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

Learn More

Datasheet

271Expected 19/05/2026

$2.25

$1.86

$1.77

$1.67

View

Min.: 1
Mult.: 1

Tube

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 SPST i4-PAC 60V

CPC1908J
IXYS Integrated Circuits
1: $11.50
200On Order

Mfr. Part No.
CPC1908J

Mouser Part No
849-CPC1908J

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST i4-PAC 60V

Learn More

Datasheet

200On Order

$11.50

$10.53

$9.67

$9.26

View

Min.: 1
Mult.: 1

Tube

PCB Mount

3.5 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)

20.879 mm (0.822 in)

CPC1908

Solid State Relays - PCB Mount SPST 1 Form A

LAA127
IXYS Integrated Circuits
1: $5.73
331On Order

Mfr. Part No.
LAA127

Mouser Part No
849-LAA127

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST 1 Form A

Learn More

Datasheet

331On Order

$5.73

$5.25

$4.57

$4.44

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 1-Form-A; 600V,120mA 5000Vrms Isolation

CPC1394GV
IXYS Integrated Circuits
500: $1.69
2,200Factory Stock Available

Mfr. Part No.
CPC1394GV

Mouser Part No
849-CPC1394GV

IXYS Integrated Circuits

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

Learn More

Datasheet

2,200Factory Stock Available

More Info Available

$1.69

$1.47

Min.: 500
Mult.: 100

Tube

120 mA

600 VDC

1 Form A (SPST-NO)

CPC1394

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

CPC1540G
IXYS Integrated Circuits
1: $3.03
950Factory Stock Available

Mfr. Part No.
CPC1540G

Mouser Part No
849-CPC1540G

IXYS Integrated Circuits

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

Learn More

Datasheet

950Factory Stock Available

More Info Available

$3.03

$2.49

$2.40

$2.27

$2.12

Min.: 1
Mult.: 1

Tube

120 mA

350 VDC

1 Form A (SPST-NO)

CPC1540

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

CPC1540GS
IXYS Integrated Circuits
1: $3.06
350Factory Stock Available

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

350Factory Stock Available

More Info Available

$3.06

$2.80

$2.58

$2.10

View

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 600V, 0.5mA AC Power Switch

CPC1963GS
IXYS Integrated Circuits
1: $5.33
400Factory Stock Available

Mfr. Part No.
CPC1963GS

Mouser Part No
849-CPC1963GS

IXYS Integrated Circuits

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

Learn More

Datasheet

400Factory Stock Available

More Info Available

$5.33

$4.39

$4.23

$4.05

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 600V, 0.5mA AC Power Switch

CPC1963GSTR
IXYS Integrated Circuits
1,000: $4.23
2,000Factory Stock Available

Mfr. Part No.
CPC1963GSTR

Mouser Part No
849-CPC1963GSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

2,000Factory Stock Available

More Info Available

Reel

$4.23

$4.08

Min.: 1,000
Mult.: 1,000

Reel: 1,000

Reel

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 350V 120mA Dual Single-Pole

LAA100LS
IXYS Integrated Circuits
250: $3.77
250Factory Stock Available

Mfr. Part No.
LAA100LS

Mouser Part No
849-LAA100LS

IXYS Integrated Circuits

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

Learn More

Datasheet

250Factory Stock Available

More Info Available

$3.77

$3.62

$3.39

$3.30

Min.: 250
Mult.: 50

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)

LAA100

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