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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 150mA

PLA110STR
IXYS Integrated Circuits
1: $4.50
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

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Datasheet

1,697On Order

Cut Tape

$4.50

$4.31

$3.95

$3.82

Reel

$3.06

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

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

CPC1390GR
IXYS Integrated Circuits
1: $3.13
271Expected 19/5/2026

Mfr. Part No.
CPC1390GR

Mouser Part No
849-CPC1390GR

IXYS Integrated Circuits

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

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Datasheet

271Expected 19/5/2026

$3.13

$2.59

$2.46

$2.32

View

Min.: 1
Mult.: 1

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

CPC1908J
IXYS Integrated Circuits
1: $15.99
200On Order

Mfr. Part No.
CPC1908J

Mouser Part No
849-CPC1908J

IXYS Integrated Circuits

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

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Datasheet

200On Order

$15.99

$14.64

$13.44

$12.87

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount SPST 1 Form A

LAA127
IXYS Integrated Circuits
1: $7.96
331On Order

Mfr. Part No.
LAA127

Mouser Part No
849-LAA127

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST 1 Form A

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Datasheet

331On Order

$7.96

$7.30

$6.35

$6.17

View

Min.: 1
Mult.: 1

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

CPC1394GV
IXYS Integrated Circuits
500: $2.35
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

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Datasheet

2,200Factory Stock Available

More Info Available

$2.35

$2.04

Min.: 500
Mult.: 100

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

CPC1540G
IXYS Integrated Circuits
1: $4.21
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

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Datasheet

950Factory Stock Available

More Info Available

$4.21

$3.46

$3.34

$3.16

$2.95

Min.: 1
Mult.: 1

Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch

CPC1943G
IXYS Integrated Circuits
250: $5.87
1,550Factory Stock Available

Mfr. Part No.
CPC1943G

Mouser Part No
849-CPC1943G

IXYS Integrated Circuits

Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch

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Datasheet

1,550Factory Stock Available

More Info Available

$5.87

$5.69

$5.62

$5.56

Quote

Min.: 250
Mult.: 50

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

CPC1963GS
IXYS Integrated Circuits
1: $7.41
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

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Datasheet

400Factory Stock Available

More Info Available

$7.41

$6.10

$5.88

$5.63

View

Min.: 1
Mult.: 1

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

CPC1963GSTR
IXYS Integrated Circuits
1,000: $5.88
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

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Datasheet

2,000Factory Stock Available

More Info Available

Reel

$5.88

$5.66

View

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

Reel: 1,000

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

LAA100LS
IXYS Integrated Circuits
250: $5.24
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

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Datasheet

250Factory Stock Available

More Info Available

$5.24

$5.03

$4.71

$4.59

Min.: 250
Mult.: 50

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

LAA120STR
IXYS Integrated Circuits
1,000: $4.34
3,000Factory Stock Available

Mfr. Part No.
LAA120STR

Mouser Part No
849-LAA120STR

IXYS Integrated Circuits

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

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Datasheet

3,000Factory Stock Available

More Info Available

Reel

$4.34

$4.11

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

Reel: 1,000

Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole

LAA127LSTR
IXYS Integrated Circuits
1,000: $5.10
5,000Factory Stock Available

Mfr. Part No.
LAA127LSTR

Mouser Part No
849-LAA127LSTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole

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Datasheet

5,000Factory Stock Available

More Info Available

Reel

$5.10

$5.00

View

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

Reel: 1,000

Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA

LCA125S
IXYS Integrated Circuits
1: $5.35
1,850Factory Stock Available

Mfr. Part No.
LCA125S

Mouser Part No
849-LCA125S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA

Learn More

Datasheet

1,850Factory Stock Available

More Info Available

$5.35

$5.02

$3.78

$3.74

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA

LCA125STR
IXYS Integrated Circuits
1,000: $3.39
1,000Factory Stock Available

Mfr. Part No.
LCA125STR

Mouser Part No
849-LCA125STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA

Learn More

Datasheet

1,000Factory Stock Available

More Info Available

Reel

$3.39

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

Reel: 1,000

Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA

LCA127LSTR
IXYS Integrated Circuits
1,000: $3.22
3,000Factory Stock Available

Mfr. Part No.
LCA127LSTR

Mouser Part No
849-LCA127LSTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA

Learn More

Datasheet

3,000Factory Stock Available

More Info Available

Reel

$3.22

$3.21

$3.20

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

Reel: 1,000

Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR

PAA110L
IXYS Integrated Circuits
1: $9.97
50Factory Stock Available

Mfr. Part No.
PAA110L

Mouser Part No
849-PAA110L

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR

Learn More

Datasheet

50Factory Stock Available

More Info Available

$9.97

$8.90

$8.49

$8.19

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR

PAA190S
IXYS Integrated Circuits
1: $9.81
16,150Factory Stock Available

Mfr. Part No.
PAA190S

Mouser Part No
849-PAA190S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR

Learn More

Datasheet

16,150Factory Stock Available

More Info Available

$9.81

$9.37

$7.95

$7.16

View

Min.: 1
Mult.: 1

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

PLA110L
IXYS Integrated Circuits
1: $5.56
350Factory Stock Available

Mfr. Part No.
PLA110L

Mouser Part No
849-PLA110L

IXYS Integrated Circuits

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

Learn More

Datasheet

350Factory Stock Available

More Info Available

$5.56

$4.96

$4.74

$4.56

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA

PLA132STR
IXYS Integrated Circuits
1,000: $3.95
1,000Factory Stock Available

Mfr. Part No.
PLA132STR

Mouser Part No
849-PLA132STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA

Learn More

Datasheet

1,000Factory Stock Available

More Info Available

Reel

$3.95

$3.88

View

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

Reel: 1,000

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

PLA190STR
IXYS Integrated Circuits
1,000: $3.49
25,000Factory Stock Available

Mfr. Part No.
PLA190STR

Mouser Part No
849-PLA190STR

IXYS Integrated Circuits

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

Learn More

Datasheet

25,000Factory Stock Available

More Info Available

Reel

$3.49

View

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

Reel: 1,000

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

PLA191STR
IXYS Integrated Circuits
1,000: $4.02
39,000Factory Stock Available

Mfr. Part No.
PLA191STR

Mouser Part No
849-PLA191STR

IXYS Integrated Circuits

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

Learn More

Datasheet

39,000Factory Stock Available

More Info Available

Reel

$4.02

$3.98

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

Reel: 1,000

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

CPC1390GV
IXYS Integrated Circuits
1: $3.22
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1390GV

Mouser Part No
849-CPC1390GV

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

$3.22

$3.02

$2.40

$2.14

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 60V, 1A, Single Pole, Normally Open Current Limiting Relay

CPC1561B
IXYS Integrated Circuits
1: $7.78
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1561B

Mouser Part No
849-CPC1561B

IXYS Integrated Circuits

Solid State Relays - PCB Mount 60V, 1A, Single Pole, Normally Open Current Limiting Relay

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

$7.78

$6.16

$5.91

$5.64

$5.50

Min.: 1
Mult.: 1

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

CPC1563G
IXYS Integrated Circuits
500: $3.25
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1563G

Mouser Part No
849-CPC1563G

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

$3.25

$3.20

$3.18

Min.: 500
Mult.: 50

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

CPC1563GSTR
IXYS Integrated Circuits
1,000: $3.02
Non-Stocked Lead-Time 23 Weeks

Mfr. Part No.
CPC1563GSTR

Mouser Part No
849-CPC1563GSTR

IXYS Integrated Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 23 Weeks

Reel

$3.02

$2.88

$2.84

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

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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