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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 6PIN SMD

PLA140S
IXYS Integrated Circuits
1: £3.61
208In Stock
150Expected 23/04/2026

Mfr. Part No.
PLA140S

Mouser Part No
849-PLA140S

IXYS Integrated Circuits

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

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Datasheet

208In Stock

150Expected 23/04/2026

£3.61

£3.15

Min.: 1
Mult.: 1

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

PLA143
IXYS Integrated Circuits
1: £2.93
30In Stock

Mfr. Part No.
PLA143

Mouser Part No
849-PLA143

IXYS Integrated Circuits

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

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Datasheet

30In Stock

£2.93

£2.76

£2.55

£2.16

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Min.: 1
Mult.: 1

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

PLA143S
IXYS Integrated Circuits
1: £2.85
244In Stock

Mfr. Part No.
PLA143S

Mouser Part No
849-PLA143S

IXYS Integrated Circuits

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

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Datasheet

244In Stock

£2.85

£2.35

£2.25

£1.99

Min.: 1
Mult.: 1

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

PLA150S
IXYS Integrated Circuits
1: £3.09
137In Stock

Mfr. Part No.
PLA150S

Mouser Part No
849-PLA150S

IXYS Integrated Circuits

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

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Datasheet

137In Stock

£3.09

£3.03

£2.90

£2.78

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Min.: 1
Mult.: 1

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

PLA160
IXYS Integrated Circuits
1: £3.35
219In Stock

Mfr. Part No.
PLA160

Mouser Part No
849-PLA160

IXYS Integrated Circuits

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

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Datasheet

219In Stock

£3.35

£2.99

£2.86

£2.59

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA

PLA160S
IXYS Integrated Circuits
1: £3.35
294In Stock

Mfr. Part No.
PLA160S

Mouser Part No
849-PLA160S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA

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Datasheet

294In Stock

£3.35

£2.99

£2.86

£2.68

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA

PLA170S
IXYS Integrated Circuits
1: £2.60
251In Stock
700Expected 25/06/2026

Mfr. Part No.
PLA170S

Mouser Part No
849-PLA170S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA

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Datasheet

251In Stock

700Expected 25/06/2026

£2.60

£2.32

£2.22

£2.13

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA

PLA171PTR
IXYS Integrated Circuits
1: £2.75
16In Stock
1,000Expected 16/06/2026

Mfr. Part No.
PLA171PTR

Mouser Part No
849-PLA171PTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA

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Datasheet

16In Stock

1,000Expected 16/06/2026

Cut Tape

£2.75

£2.44

£2.34

£2.25

Reel

£1.94

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MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay

PLA172P
IXYS Integrated Circuits
1: £4.16
130In Stock

Mfr. Part No.
PLA172P

Mouser Part No
849-PLA172P

IXYS Integrated Circuits

Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay

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Datasheet

130In Stock

£4.16

£3.90

£3.47

£3.30

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Min.: 1
Mult.: 1

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

PLA190S
IXYS Integrated Circuits
1: £3.25
330In Stock

Mfr. Part No.
PLA190S

Mouser Part No
849-PLA190S

IXYS Integrated Circuits

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

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Datasheet

330In Stock

£3.25

£2.90

£2.77

£2.66

View

Min.: 1
Mult.: 1

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

PLA191
IXYS Integrated Circuits
1: £3.87
34In Stock

Mfr. Part No.
PLA191

Mouser Part No
849-PLA191

IXYS Integrated Circuits

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

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Datasheet

34In Stock

£3.87

£3.06

£2.83

£2.50

View

Min.: 1
Mult.: 1

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

PLA191S
IXYS Integrated Circuits
1: £3.68
218In 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

218In Stock

£3.68

£3.29

£3.14

£2.71

View

Min.: 1
Mult.: 1

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

PLA192S
IXYS Integrated Circuits
1: £2.71
379In Stock

Mfr. Part No.
PLA192S

Mouser Part No
849-PLA192S

IXYS Integrated Circuits

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

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Datasheet

379In Stock

£2.71

£2.21

£2.17

£2.01

View

Min.: 1
Mult.: 1

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

PLA193
IXYS Integrated Circuits
1: £2.50
61In Stock

Mfr. Part No.
PLA193

Mouser Part No
849-PLA193

IXYS Integrated Circuits

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

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Datasheet

61In Stock

£2.50

£2.05

£1.97

£1.83

View

Min.: 1
Mult.: 1

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

PLA193S
IXYS Integrated Circuits
1: £2.57
294In Stock

Mfr. Part No.
PLA193S

Mouser Part No
849-PLA193S

IXYS Integrated Circuits

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

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Datasheet

294In Stock

£2.57

£2.04

£1.95

£1.84

View

Min.: 1
Mult.: 1

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

PLA194S
IXYS Integrated Circuits
1: £2.71
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

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Datasheet

5In Stock

£2.71

£2.14

£2.02

£1.80

View

Min.: 1
Mult.: 1

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

XAA170
IXYS Integrated Circuits
1: £3.54
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

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Datasheet

90In Stock

£3.54

£3.33

£3.25

£2.55

View

Min.: 1
Mult.: 1

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

XCA170
IXYS Integrated Circuits
1: £1.74
104In Stock

Mfr. Part No.
XCA170

Mouser Part No
849-XCA170

IXYS Integrated Circuits

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

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Datasheet

104In Stock

£1.74

£1.55

£1.48

£1.42

View

Min.: 1
Mult.: 1

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

CPC1964BX6
IXYS Integrated Circuits
1: £3.61
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

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Datasheet

15In Stock

£3.61

£2.50

View

Min.: 1
Mult.: 1

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

CPC1510GSTR
IXYS Integrated Circuits
1: £2.56
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

£2.56

£2.34

£2.16

£2.08

View

Reel

£1.79

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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

CPC1966Y
IXYS Integrated Circuits
1: £3.33
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

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Datasheet

8,465Expected 16/04/2026

£3.33

£2.98

£2.75

£2.73

Min.: 1
Mult.: 1

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

LCA712STR
IXYS Integrated Circuits
1: £3.98
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

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Datasheet

5,000Expected 02/04/2026

Cut Tape

£3.98

£3.68

£3.51

£3.39

Reel

£2.72

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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

CPC1965G
IXYS Integrated Circuits
1: £3.29
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

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Datasheet

14,426On Order

£3.29

£2.92

£2.75

£2.68

View

Min.: 1
Mult.: 1

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

CPC1393G
IXYS Integrated Circuits
1: £1.84
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

£1.84

£1.64

£1.57

£1.52

View

Min.: 1
Mult.: 1

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

CPC1510GS
IXYS Integrated Circuits
1: £2.65
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

£2.65

£2.17

£2.10

£2.01

£1.94

Min.: 1
Mult.: 1

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

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

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