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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Series
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA
Datasheet
218May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 250 mA 400 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA191
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA
Datasheet
379May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 150 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA192
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP
Datasheet
61May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 100 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA193
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA
Datasheet
294May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 100 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA193
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation
Datasheet
5May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 130 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA194
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay
Datasheet
90May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 100 mA 350 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) XAA170
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN SOP
Datasheet
104May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 100 mA 350 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) XCA170
IXYS Integrated Circuits Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out
Datasheet
15May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 1.5 A 20 VAC to 240 VAC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SCR 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1964B

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay
Datasheet
248May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 600 mA 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) CPC1560
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay
Datasheet
14,780Inoorder
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

Reel, Cut Tape, MouseReel PCB Mount 200 mA 250 VDC 1 Form A (SPST-NO) 1.15 VDC to 1.5 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) CPC1510
IXYS Integrated Circuits Solid State Relays - PCB Mount AC Switch 3A, 600V
Datasheet
8,465Inaasahan 4/16/2026
Min.: 1
Mult.: 1

Tube PCB Mount 3 A 20 VAC to 240 VAC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SIP-4 SCR 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1966
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET
Datasheet
5,000Inoorder
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

Reel, Cut Tape, MouseReel PCB Mount 1 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA712
IXYS Integrated Circuits CPC1965G
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay
Datasheet
14,376Inoorder
Min.: 1
Mult.: 1

Tube PCB Mount 1 A 20 VAC to 260 VAC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SCR 100 mA - 40 C + 85 C 19.202 mm (0.756 in) 3.302 mm (0.13 in) 6.35 mm (0.25 in) CPC1965
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay
Datasheet
1,200Inaasahan 8/17/2026
Min.: 1
Mult.: 1

Tube PCB Mount 90 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-4 MOSFET 50 mA - 40 C + 85 C 6.35 mm (0.25 in) 4.572 mm (0.18 in) 3.3 mm (0.13 in) CPC1393
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay
Datasheet
2,100Inaasahan 5/19/2026
Min.: 1
Mult.: 1

Tube PCB Mount 200 mA 250 VDC 1 Form A (SPST-NO) 1.15 VDC to 1.5 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) CPC1510
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA
Datasheet
1,697Inoorder
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

Reel, Cut Tape, MouseReel PCB Mount 150 mA 400 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA110
IXYS Integrated Circuits Solid State Relays - PCB Mount Single Pole Relay 400V 140mA
Datasheet
271Inaasahan 5/19/2026
Min.: 1
Mult.: 1

Tube PCB Mount 140 mA 400 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-4 MOSFET 50 mA - 40 C + 85 C 6.35 mm (0.25 in) 4.572 mm (0.18 in) 3.3 mm (0.13 in) CPC1390
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST i4-PAC 60V
Datasheet
200Inoorder
Min.: 1
Mult.: 1

Tube PCB Mount 3.5 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC ISOPLUS264 MOSFET 100 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 20.879 mm (0.822 in) CPC1908
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST 1 Form A
Datasheet
331Inoorder
Min.: 1
Mult.: 1

Tube PCB Mount 200 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LAA127
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation
Datasheet
2,200Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 500
Mult.: 100

Tube 120 mA 600 VDC 1 Form A (SPST-NO) CPC1394
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch
Datasheet
2,000Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 1,000
Mult.: 1,000
Reel: 1,000

Reel PCB Mount 500 mA 20 VAC to 260 VAC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SCR 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 3.302 mm (0.13 in) 6.35 mm (0.25 in) CPC1963
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole
Datasheet
250Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 250
Mult.: 50

Tube PCB Mount 120 mA 350 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SMD DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LAA100
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole
Datasheet
3,000Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 1,000
Mult.: 1,000
Reel: 1,000

Reel PCB Mount 170 mA 250 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SMD DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LAA120
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole
Datasheet
5,000Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 1,000
Mult.: 1,000
Reel: 1,000

Reel PCB Mount 200 mA 250 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SMD DIP-8 MOSFET 50 mA 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LAA127
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA
Datasheet
1,850Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 1
Mult.: 1

Tube PCB Mount 170 mA 300 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA125