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)

Select a category below to see filtering options and narrow down your search.
Select Image Part #
 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 1-Form-A; 600V,120mA 5000Vrms Isolation
Datasheet
507In Stock
100Expected 10/12/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation
Datasheet
1.287In Stock
4.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay
Datasheet
406In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay
Datasheet
497In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin DIP
Datasheet
1.242In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM
Datasheet
1.025In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM T/R
Datasheet
1.052In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation
Datasheet
3.047In Stock
6.950On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 250V Single Pole DC Power Relay
Datasheet
572In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 4PIN SIP
Datasheet
305In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 100V Single Pole SIP Power Relay
Datasheet
965In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SP, NO ISOPLUS-264
Datasheet
238In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 8-Pin Power SOIC
Datasheet
1.687In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay
Datasheet
181In Stock
100Expected 2/12/2027
Min.: 1
Mult.: 1

IXYS Integrated Circuits Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay
Datasheet
3.684In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 4PIN SOP
Datasheet
294In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay
Datasheet
2.437In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual Power Relay 60V, 1-Form-A
Datasheet
244In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 100V 300mA Double Pole Relay
Datasheet
581In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 100V 300mA Double Pole Relay
Datasheet
1.552In Stock
2.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 120MA DPST 8-DIP
Datasheet
1.230In Stock
4.650Expected 12/21/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP
Datasheet
1.593In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST 1 Form A
Datasheet
621In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole
Datasheet
138In Stock
3.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP
Datasheet
4.489In Stock
10.950Expected 8/20/2026
Min.: 1
Mult.: 1