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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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA
Datasheet
303In Stock
1.400On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP
Datasheet
51In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay
Datasheet
86In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN SOP
Datasheet
104In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR
Datasheet
41In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation
Datasheet
5In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 300mA Solid State Relay
Datasheet
7.998On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay
Datasheet
12.580Expected 7/2/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay
Datasheet
14.465On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount AC Switch 3A, 600V
Datasheet
9.240Expected 8/7/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR
Datasheet
3.725On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits CPC1965G
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay
Datasheet
14.495On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single Pole Relay 400V 140mA
Datasheet
600Expected 10/9/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay
Datasheet
1.792Expected 8/10/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC
Datasheet
100Expected 7/21/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC
Datasheet
197Expected 8/21/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay
Datasheet
100On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA
Datasheet
2.000Expected 9/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 250V Single Pole SIP Power Relay
Datasheet
100Expected 10/16/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SP-NO SS OptoMOS Power Relay
Datasheet
100On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP
Datasheet
150Expected 6/29/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP
Datasheet
100Expected 6/29/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation
Datasheet
2.200Factory Stock Available
More Info Available
Min.: 500
Mult.: 100

IXYS Integrated Circuits Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay
Datasheet
950Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

IXYS Integrated Circuits Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch
Datasheet
1.550Factory Stock Available
More Info Available
Min.: 1
Mult.: 1