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 DPST-NO/NO 8PIN DIP
Datasheet
103In Stock
150Expected 8/6/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA
Datasheet
43In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA
Datasheet
90In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA
Datasheet
84In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN SMT
Datasheet
67In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD
Datasheet
160In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA
Datasheet
14In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA
Datasheet
93In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA
Datasheet
120In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET
Datasheet
185In Stock
250Expected 12/1/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR
Datasheet
171In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay
Datasheet
72In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR
Datasheet
2In Stock
Min.: 1
Mult.: 1

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

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR
Datasheet
129In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR
Datasheet
13In Stock
2.000Expected 12/18/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount DPST-NO/NO 6PIN DIP
Datasheet
91In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 600V 100mA SSR
Datasheet
83In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA
Datasheet
71In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP
Datasheet
52In Stock
250Expected 11/19/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA
Datasheet
113In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA
Datasheet
91In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA
Datasheet
67In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA
Datasheet
137In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP
Datasheet
219In Stock
Min.: 1
Mult.: 1