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.

All Results (297)

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IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay
Datasheet
40,774In Stock
38,000Expected 21/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay
Datasheet
83,028In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay
Datasheet
9,831In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay
Datasheet
93,159In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay
Datasheet
71,549In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay
Datasheet
40,157In Stock
86,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS
Datasheet
16,899In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay
Datasheet
12,648In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay
Datasheet
41,179In Stock
37,201On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay
Datasheet
122,447In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay
Datasheet
10,357In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay
Datasheet
12,681In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay
Datasheet
5,044In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC
Datasheet
2,795In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC
Datasheet
1,694In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC
Datasheet
198In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay
Datasheet
1,100In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay
Datasheet
5,538In Stock
2,500Expected 22/10/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out
Datasheet
2,193In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay
Datasheet
637In Stock
475Expected 18/11/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay
Datasheet
3,393In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST i4-PAC 600V
Datasheet
1,034In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST iso PLUS-264
Datasheet
804In Stock
350Expected 23/07/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY, SS ICS
Datasheet
3,901In Stock
7,700Expected 18/11/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP
Datasheet
4,745In Stock
Min.: 1
Mult.: 1