Optocouplers/Photocouplers – Mouser Switzerland

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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 250V, 1-Form-A SSR

CPC1010NTR
IXYS Integrated Circuits
1: 3.14 CHF
11 284In Stock

Mfr. Part No.
CPC1010NTR

Mouser Part No
849-CPC1010NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 250V, 1-Form-A SSR

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Datasheet

11 284In Stock

Cut Tape

3.14 CHF

2.80 CHF

2.68 CHF

2.56 CHF

View

Reel

2.20 CHF

MouseReel Available

Min.: 1
Mult.: 1

: 2 000

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay

CPC1016NTR
IXYS Integrated Circuits
1: 2.44 CHF
22 193In Stock

Mfr. Part No.
CPC1016NTR

Mouser Part No
849-CPC1016NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay

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Datasheet

22 193In Stock

Cut Tape

2.44 CHF

2.18 CHF

2.08 CHF

2.00 CHF

Reel

1.71 CHF

View

MouseReel Available

Min.: 1
Mult.: 1

: 2 000

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay

CPC1020NTR
IXYS Integrated Circuits
1: 5.17 CHF
20 631In Stock
101 201On Order

Mfr. Part No.
CPC1020NTR

Mouser Part No
849-CPC1020NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay

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Datasheet

20 631In Stock

101 201On Order

Cut Tape

5.17 CHF

4.84 CHF

4.31 CHF

4.09 CHF

View

Reel

3.40 CHF

MouseReel Available

Min.: 1
Mult.: 1

: 2 000

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

CPC1025N
IXYS Integrated Circuits
1: 2.31 CHF
7 469In Stock
400Expected 06/01/2027

Mfr. Part No.
CPC1025N

Mouser Part No
849-CPC1025N

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

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Datasheet

7 469In Stock

400Expected 06/01/2027

2.31 CHF

2.12 CHF

1.98 CHF

1.93 CHF

View

Min.: 1
Mult.: 1

PCB Mount

SOP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

CPC1025NTR
IXYS Integrated Circuits
1: 2.56 CHF
121 891In Stock

Mfr. Part No.
CPC1025NTR

Mouser Part No
849-CPC1025NTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay

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Datasheet

121 891In Stock

Cut Tape

2.56 CHF

2.37 CHF

2.16 CHF

2.10 CHF

Reel

1.75 CHF

View

MouseReel Available

Min.: 1
Mult.: 1

: 2 000

PCB Mount

SOP-4

MOSFET

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

CPC1330GRTR
IXYS Integrated Circuits
1: 2.93 CHF
11 831In Stock

Mfr. Part No.
CPC1330GRTR

Mouser Part No
849-CPC1330GRTR

IXYS Integrated Circuits

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

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Datasheet

11 831In Stock

Cut Tape

2.93 CHF

2.62 CHF

2.50 CHF

2.39 CHF

Reel

2.05 CHF

View

MouseReel Available

Min.: 1
Mult.: 1

: 1 000

PCB Mount

SMD DIP-4

MOSFET

Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation

CPC1706Y
IXYS Integrated Circuits
1: 5.92 CHF
7 326In Stock

Mfr. Part No.
CPC1706Y

Mouser Part No
849-CPC1706Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation

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Datasheet

7 326In Stock

5.92 CHF

5.27 CHF

4.99 CHF

4.78 CHF

View

Min.: 1
Mult.: 1

PCB Mount

SIP-4

MOSFET

Solid State Relays - PCB Mount DC Only Single Pole i4-PAC

CPC1709J
IXYS Integrated Circuits
1: 14.33 CHF
1 641In Stock
3 100On Order

Mfr. Part No.
CPC1709J

Mouser Part No
849-CPC1709J

IXYS Integrated Circuits

Solid State Relays - PCB Mount DC Only Single Pole i4-PAC

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Datasheet

1 641In Stock

3 100On Order

14.33 CHF

12.77 CHF

11.78 CHF

11.35 CHF

View

Min.: 1
Mult.: 1

PCB Mount

i4-PAC

MOSFET

Solid State Relays - PCB Mount DC Only Single Pole i4-PAC

CPC1718J
IXYS Integrated Circuits
1: 15.22 CHF
1 538In Stock

Mfr. Part No.
CPC1718J

Mouser Part No
849-CPC1718J

IXYS Integrated Circuits

Solid State Relays - PCB Mount DC Only Single Pole i4-PAC

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Datasheet

1 538In Stock

15.22 CHF

13.56 CHF

12.94 CHF

12.50 CHF

View

Min.: 1
Mult.: 1

PCB Mount

i4-PAC

MOSFET

Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay

CPC1907B
IXYS Integrated Circuits
1: 9.57 CHF
5 257In Stock
12 100On Order

Mfr. Part No.
CPC1907B

Mouser Part No
849-CPC1907B

IXYS Integrated Circuits

Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay

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Datasheet

5 257In Stock

12 100On Order

9.57 CHF

8.53 CHF

8.13 CHF

7.85 CHF

View

Min.: 1
Mult.: 1

PCB Mount

SOIC-8

MOSFET

Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay

CPC1918J
IXYS Integrated Circuits
1: 17.92 CHF
7 453In Stock
7 550Expected 25/01/2027

Mfr. Part No.
CPC1918J

Mouser Part No
849-CPC1918J

IXYS Integrated Circuits

Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay

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Datasheet

7 453In Stock

7 550Expected 25/01/2027

17.92 CHF

16.01 CHF

15.28 CHF

14.71 CHF

View

Min.: 1
Mult.: 1

PCB Mount

ISOPLUS264

MOSFET

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

CPC1966YX6
IXYS Integrated Circuits
1: 11.21 CHF
2 165In Stock

Mfr. Part No.
CPC1966YX6

Mouser Part No
849-CPC1966YX6

IXYS Integrated Circuits

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

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Datasheet

2 165In Stock

11.21 CHF

9.99 CHF

9.53 CHF

9.16 CHF

8.85 CHF

Min.: 1
Mult.: 1

PCB Mount

SIP-4

SCR

Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay

CPC1981Y
IXYS Integrated Circuits
1: 5.84 CHF
2 848In Stock

Mfr. Part No.
CPC1981Y

Mouser Part No
849-CPC1981Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay

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Datasheet

2 848In Stock

5.84 CHF

5.67 CHF

5.41 CHF

5.22 CHF

View

Min.: 1
Mult.: 1

PCB Mount

SIP-4

MOSFET

Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP

CPC1984Y
IXYS Integrated Circuits
1: 13.96 CHF
3 987In Stock
1 600Expected 29/01/2027

Mfr. Part No.
CPC1984Y

Mouser Part No
849-CPC1984Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP

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Datasheet

3 987In Stock

1 600Expected 29/01/2027

13.96 CHF

12.44 CHF

11.88 CHF

11.47 CHF

View

Min.: 1
Mult.: 1

PCB Mount

SIP-4

MOSFET

Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay

CPC1988J
IXYS Integrated Circuits
1: 35.17 CHF
608In Stock

Mfr. Part No.
CPC1988J

Mouser Part No
849-CPC1988J

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay

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Datasheet

608In Stock

35.17 CHF

33.42 CHF

31.66 CHF

29.90 CHF

View

Min.: 1
Mult.: 1

PCB Mount

i4-PAC

MOSFET

Solid State Relays - PCB Mount SP AC Solid State Power Switch

CPC1998J
IXYS Integrated Circuits
1: 17.51 CHF
4 557In Stock
2 725Expected 21/08/2026

Mfr. Part No.
CPC1998J

Mouser Part No
849-CPC1998J

IXYS Integrated Circuits

Solid State Relays - PCB Mount SP AC Solid State Power Switch

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Datasheet

4 557In Stock

2 725Expected 21/08/2026

17.51 CHF

15.90 CHF

15.14 CHF

14.48 CHF

View

Min.: 1
Mult.: 1

PCB Mount

i4-PAC

SCR

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

LAA110STR
IXYS Integrated Circuits
1: 7.07 CHF
11 699In Stock

Mfr. Part No.
LAA110STR

Mouser Part No
849-LAA110STR

IXYS Integrated Circuits

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

Learn More

Datasheet

11 699In Stock

Cut Tape

7.07 CHF

6.30 CHF

6.01 CHF

5.81 CHF

View

Reel

4.72 CHF

MouseReel Available

Min.: 1
Mult.: 1

: 1 000

PCB Mount

SMD DIP-8

MOSFET

Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole

LAA710S
IXYS Integrated Circuits
1: 16.66 CHF
5 036In Stock

Mfr. Part No.
LAA710S

Mouser Part No
849-LAA710S

IXYS Integrated Circuits

Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole

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Datasheet

5 036In Stock

16.66 CHF

14.81 CHF

14.07 CHF

13.33 CHF

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-8

MOSFET

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

LCA110STR
IXYS Integrated Circuits
1: 3.28 CHF
12 021In Stock
4 000Expected 02/10/2026

Mfr. Part No.
LCA110STR

Mouser Part No
849-LCA110STR

IXYS Integrated Circuits

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

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Datasheet

12 021In Stock

4 000Expected 02/10/2026

Cut Tape

3.28 CHF

2.92 CHF

2.79 CHF

2.68 CHF

Reel

2.26 CHF

View

MouseReel Available

Min.: 1
Mult.: 1

: 1 000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay

LCA701S
IXYS Integrated Circuits
1: 8.30 CHF
7 326In Stock

Mfr. Part No.
LCA701S

Mouser Part No
849-LCA701S

IXYS Integrated Circuits

Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay

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Datasheet

7 326In Stock

8.30 CHF

7.39 CHF

7.06 CHF

6.71 CHF

6.36 CHF

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay

LCA701STR
IXYS Integrated Circuits
1: 7.93 CHF
2 664In Stock

Mfr. Part No.
LCA701STR

Mouser Part No
849-LCA701STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay

Learn More

Datasheet

2 664In Stock

Cut Tape

7.93 CHF

7.07 CHF

6.75 CHF

6.51 CHF

View

Reel

5.78 CHF

MouseReel Available

Min.: 1
Mult.: 1

: 1 000

PCB Mount

MOSFET

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

LCA710
IXYS Integrated Circuits
1: 8.04 CHF
5 488In Stock
5 150On Order

Mfr. Part No.
LCA710

Mouser Part No
849-LCA710

IXYS Integrated Circuits

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

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Datasheet

5 488In Stock

5 150On Order

8.04 CHF

7.56 CHF

6.78 CHF

6.52 CHF

View

Min.: 1
Mult.: 1

PCB Mount

DIP-6

MOSFET

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

LCA710S
IXYS Integrated Circuits
1: 7.79 CHF
3 407In Stock
3 500On Order

Mfr. Part No.
LCA710S

Mouser Part No
849-LCA710S

IXYS Integrated Circuits

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

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Datasheet

3 407In Stock

3 500On Order

7.79 CHF

6.94 CHF

6.63 CHF

5.76 CHF

View

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

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

LCA710STR
IXYS Integrated Circuits
1: 7.44 CHF
7 057In Stock

Mfr. Part No.
LCA710STR

Mouser Part No
849-LCA710STR

IXYS Integrated Circuits

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

Learn More

Datasheet

7 057In Stock

Cut Tape

7.44 CHF

6.63 CHF

6.33 CHF

6.11 CHF

View

Reel

5.20 CHF

MouseReel Available

Min.: 1
Mult.: 1

: 1 000

PCB Mount

SMD DIP-6

MOSFET

Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET

LCA715S
IXYS Integrated Circuits
1: 9.11 CHF
3 466In Stock

Mfr. Part No.
LCA715S

Mouser Part No
849-LCA715S

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET

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Datasheet

3 466In Stock

9.11 CHF

8.12 CHF

7.75 CHF

7.11 CHF

6.91 CHF

Min.: 1
Mult.: 1

PCB Mount

SMD DIP-6

MOSFET

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

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