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 (275)

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 Mfr.
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 60V 1000mA Dual Single-Pole
Datasheet
12In Stock
3 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA
Datasheet
30In 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
53In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA
Datasheet
6In 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 SPST-NO 6PIN DIP
Datasheet
150In 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 Single-Pole Relay 400V 250mA
Datasheet
24In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR
Datasheet
2 994On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR
Datasheet
4 000Expected 14/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP
Datasheet
4 141Expected 26/05/2027
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA
Datasheet
9 000Expected 08/02/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay
Datasheet
229 495On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 300mA Solid State Relay
Datasheet
8 635On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR
Datasheet
8 644On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A
Datasheet
1 741In Stock
30 900On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST iso PLUS-264
Datasheet
4 275On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation
Datasheet
4 135On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET
Datasheet
2 000Expected 14/05/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay
Datasheet
2 156On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR
Datasheet
948Expected 26/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA
Datasheet
1 825On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay
Datasheet
5 930On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 000