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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 250V 250mA

PLA150S
IXYS Integrated Circuits
1: $4.12
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

$4.12

$4.04

$3.86

$3.71

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Min.: 1
Mult.: 1

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

PLA160
IXYS Integrated Circuits
1: $4.47
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

$4.47

$3.99

$3.81

$3.45

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Min.: 1
Mult.: 1

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

PLA160S
IXYS Integrated Circuits
1: $4.47
284In 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

284In Stock

$4.47

$3.99

$3.81

$3.67

View

Min.: 1
Mult.: 1

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

PLA170S
IXYS Integrated Circuits
1: $3.46
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

$3.46

$3.09

$2.95

$2.84

View

Min.: 1
Mult.: 1

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

PLA171PTR
IXYS Integrated Circuits
1: $3.66
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

$3.66

$3.26

$3.12

$3.00

Reel

$2.58

View

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: $5.55
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

$5.55

$5.20

$4.62

$4.40

View

Min.: 1
Mult.: 1

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

PLA190S
IXYS Integrated Circuits
1: $4.33
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

$4.33

$3.86

$3.69

$3.55

View

Min.: 1
Mult.: 1

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

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Datasheet

34In Stock

$5.15

$4.08

$3.77

$3.33

View

Min.: 1
Mult.: 1

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

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Datasheet

218In Stock

$4.91

$4.38

$4.19

$3.61

View

Min.: 1
Mult.: 1

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

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Datasheet

379In Stock

$3.60

$2.94

$2.89

$2.68

View

Min.: 1
Mult.: 1

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

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Datasheet

61In Stock

$3.32

$2.73

$2.63

$2.44

View

Min.: 1
Mult.: 1

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

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Datasheet

294In Stock

$3.42

$2.72

$2.59

$2.45

View

Min.: 1
Mult.: 1

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

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Datasheet

5In Stock

$3.60

$2.85

$2.69

$2.39

View

Min.: 1
Mult.: 1

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

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Datasheet

90In Stock

$4.72

$4.43

$4.33

$3.40

View

Min.: 1
Mult.: 1

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

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Datasheet

104In Stock

$2.31

$2.07

$1.98

$1.90

View

Min.: 1
Mult.: 1

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

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Datasheet

15In Stock

$4.80

$3.32

View

Min.: 1
Mult.: 1

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

CPC1560G
IXYS Integrated Circuits
1: $3.19
248In Stock

Mfr. Part No.
CPC1560G

Mouser Part No
849-CPC1560G

IXYS Integrated Circuits

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

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Datasheet

248In Stock

$3.19

$2.85

$2.72

$2.62

View

Min.: 1
Mult.: 1

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

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

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

LCA712STR
IXYS Integrated Circuits
1: $5.37
5,000On Order

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

5,000On Order

Cut Tape

$5.37

$4.89

$4.67

$4.51

Reel

$3.87

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: $4.38
14,346On 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

14,346On Order

$4.38

$3.90

$3.66

$3.57

View

Min.: 1
Mult.: 1

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

CPC1393G
IXYS Integrated Circuits
1: $2.45
1,900On Order

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

1,900On Order

$2.45

$2.19

$2.09

$2.02

View

Min.: 1
Mult.: 1

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

CPC1510GS
IXYS Integrated Circuits
1: $3.58
2,000Expected 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

2,000Expected 19/05/2026

$3.58

$3.20

$3.00

$2.90

View

Min.: 1
Mult.: 1

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

CPC1540GS
IXYS Integrated Circuits
1: $3.05
1,300Expected 14/10/2026

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

1,300Expected 14/10/2026

$3.05

$2.76

$2.58

$2.49

View

Min.: 1
Mult.: 1

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

PLA110STR
IXYS Integrated Circuits
1: $3.31
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

$3.31

$3.11

$2.94

$2.86

Reel

$2.63

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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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