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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 #

Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay

CPC1973Y
IXYS Integrated Circuits
1: $14.76
90In Stock
100On Order

Mfr. Part #
CPC1973Y

Mouser Part #
849-CPC1973Y

IXYS Integrated Circuits

Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay

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Datasheet

90In Stock

100On Order

$14.76

$12.14

$10.57

$10.15

Min.: 1
Mult.: 1

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

CPC1978J
IXYS Integrated Circuits
1: $36.69
56In Stock
550On Order

Mfr. Part #
CPC1978J

Mouser Part #
849-CPC1978J

IXYS Integrated Circuits

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

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Datasheet

56In Stock

550On Order

$36.69

$33.19

$31.56

$30.11

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation

CPC1983Y
IXYS Integrated Circuits
1: $15.45
22In Stock
5,250On Order

Mfr. Part #
CPC1983Y

Mouser Part #
849-CPC1983Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation

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Datasheet

22In Stock

5,250On Order

$15.45

$15.15

$13.00

$12.44

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount RELAY, SS ICS

CPC1983YE
IXYS Integrated Circuits
1: $14.88
16In Stock
19,550On Order

Mfr. Part #
CPC1983YE

Mouser Part #
849-CPC1983YE

IXYS Integrated Circuits

Solid State Relays - PCB Mount RELAY, SS ICS

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Datasheet

16In Stock

19,550On Order

$14.88

$13.26

$12.64

$12.21

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Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 100V 300mA Double Pole Relay

LAA108
IXYS Integrated Circuits
1: $7.66
381In Stock

Mfr. Part #
LAA108

Mouser Part #
849-LAA108

IXYS Integrated Circuits

Solid State Relays - PCB Mount 100V 300mA Double Pole Relay

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Datasheet

381In Stock

$7.66

$6.84

$6.52

$6.29

View

Min.: 1
Mult.: 1

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

LAA110L
IXYS Integrated Circuits
1: $13.54
96In Stock

Mfr. Part #
LAA110L

Mouser Part #
849-LAA110L

IXYS Integrated Circuits

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

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Datasheet

96In Stock

$13.54

$12.07

$11.52

$11.12

View

Min.: 1
Mult.: 1

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

LAA110LS
IXYS Integrated Circuits
1: $12.84
6In Stock

Mfr. Part #
LAA110LS

Mouser Part #
849-LAA110LS

IXYS Integrated Circuits

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

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Datasheet

6In Stock

$12.84

$11.81

$11.52

$9.49

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Min.: 1
Mult.: 1

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

LAA120
IXYS Integrated Circuits
1: $14.04
156In Stock

Mfr. Part #
LAA120

Mouser Part #
849-LAA120

IXYS Integrated Circuits

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

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Datasheet

156In Stock

$14.04

$13.16

$11.69

$11.10

View

Min.: 1
Mult.: 1

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

LAA120S
IXYS Integrated Circuits
1: $12.92
3In Stock

Mfr. Part #
LAA120S

Mouser Part #
849-LAA120S

IXYS Integrated Circuits

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

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Datasheet

3In Stock

$12.92

$11.52

$11.00

$10.61

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount DUAL POLE

LAA125
IXYS Integrated Circuits
1: $12.92
150In Stock

Mfr. Part #
LAA125

Mouser Part #
849-LAA125

IXYS Integrated Circuits

Solid State Relays - PCB Mount DUAL POLE

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Datasheet

150In Stock

$12.92

$11.52

$11.00

$10.61

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole

LAA125LS
IXYS Integrated Circuits
1: $15.29
83In Stock

Mfr. Part #
LAA125LS

Mouser Part #
849-LAA125LS

IXYS Integrated Circuits

Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole

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Datasheet

83In Stock

$15.29

$14.33

$12.74

$12.08

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole

LAA125S
IXYS Integrated Circuits
1: $10.61
127In Stock

Mfr. Part #
LAA125S

Mouser Part #
849-LAA125S

IXYS Integrated Circuits

Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole

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Datasheet

127In Stock

$10.61

$9.91

$9.50

$9.24

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Min.: 1
Mult.: 1

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

LAA127LS
IXYS Integrated Circuits
1: $18.10
90In Stock

Mfr. Part #
LAA127LS

Mouser Part #
849-LAA127LS

IXYS Integrated Circuits

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

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Datasheet

90In Stock

$18.10

$16.08

$15.28

$14.62

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Min.: 1
Mult.: 1

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

LCA110LS
IXYS Integrated Circuits
1: $6.47
30In Stock

Mfr. Part #
LCA110LS

Mouser Part #
849-LCA110LS

IXYS Integrated Circuits

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

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Datasheet

30In Stock

$6.47

$5.76

$5.50

$5.30

View

Min.: 1
Mult.: 1

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

LCA120L
IXYS Integrated Circuits
1: $8.94
90In Stock

Mfr. Part #
LCA120L

Mouser Part #
849-LCA120L

IXYS Integrated Circuits

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

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Datasheet

90In Stock

$8.94

$7.96

$7.62

$7.34

View

Min.: 1
Mult.: 1

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

LCA120LS
IXYS Integrated Circuits
1: $9.56
84In Stock

Mfr. Part #
LCA120LS

Mouser Part #
849-LCA120LS

IXYS Integrated Circuits

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

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Datasheet

84In Stock

$9.56

$8.97

$7.98

$7.56

View

Min.: 1
Mult.: 1

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

LCA120S
IXYS Integrated Circuits
1: $9.01
67In Stock

Mfr. Part #
LCA120S

Mouser Part #
849-LCA120S

IXYS Integrated Circuits

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

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Datasheet

67In Stock

$9.01

$8.04

$7.68

$7.40

View

Min.: 1
Mult.: 1

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

LCA127LS
IXYS Integrated Circuits
1: $10.67
14In Stock

Mfr. Part #
LCA127LS

Mouser Part #
849-LCA127LS

IXYS Integrated Circuits

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

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Datasheet

14In Stock

$10.67

$9.50

$9.09

$8.76

View

Min.: 1
Mult.: 1

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

LCA127S
IXYS Integrated Circuits
1: $10.44
93In Stock

Mfr. Part #
LCA127S

Mouser Part #
849-LCA127S

IXYS Integrated Circuits

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

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Datasheet

93In Stock

$10.44

$9.30

$8.88

$8.57

View

Min.: 1
Mult.: 1

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

LCA182
IXYS Integrated Circuits
1: $7.69
150In Stock

Mfr. Part #
LCA182

Mouser Part #
849-LCA182

IXYS Integrated Circuits

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

Learn More

Datasheet

150In Stock

$7.69

$7.21

$6.41

$6.16

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A

LCA710R
IXYS Integrated Circuits
1: $13.92
146In Stock
350Expected 2027-01-20

Mfr. Part #
LCA710R

Mouser Part #
849-LCA710R

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A

Learn More

Datasheet

146In Stock

350Expected 2027-01-20

$13.92

$12.41

$11.85

$11.43

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay

LCA717
IXYS Integrated Circuits
1: $14.39
201In Stock
300Expected 2027-01-25

Mfr. Part #
LCA717

Mouser Part #
849-LCA717

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay

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Datasheet

201In Stock

300Expected 2027-01-25

$14.39

$12.82

$12.24

$11.81

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP

OAA160
IXYS Integrated Circuits
1: $17.51
95In Stock

Mfr. Part #
OAA160

Mouser Part #
849-OAA160

IXYS Integrated Circuits

Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP

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Datasheet

95In Stock

$17.51

$15.60

$14.90

$14.37

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR

OAA160S
IXYS Integrated Circuits
1: $17.65
171In Stock

Mfr. Part #
OAA160S

Mouser Part #
849-OAA160S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR

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Datasheet

171In Stock

$17.65

$15.74

$15.03

$14.80

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay

OMA160S
IXYS Integrated Circuits
1: $9.65
72In Stock

Mfr. Part #
OMA160S

Mouser Part #
849-OMA160S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay

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Datasheet

72In Stock

$9.65

$8.60

$8.22

$7.92

View

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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