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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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 350V 120mA Dual Single-Pole 698In Stock
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA 2.596In Stock
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR 241In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR 267In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST i4-PAC 60V 200In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY, SS ICS 3In Stock
1.000Expected 7/30/2026
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay 439In Stock
100Expected 9/9/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP 96In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA 318In Stock
Min.: 1
Mult.: 1
: 1.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 100V 300mA Double Pole Relay 274In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA 244In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP 213In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole 152In Stock
Min.: 1
Mult.: 1

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

IXYS Integrated Circuits Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay 489In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay 424In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole 149In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay 234In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay 122In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA 294In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP 37.607In Stock
Min.: 1
Mult.: 1
: 2.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay 37.654In Stock
38.000Expected 9/10/2026
Min.: 1
Mult.: 1
: 2.000

IXYS Integrated Circuits Solid State Relays - PCB Mount SPNO RELAY 298.831In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay 58.853In Stock
68.000Expected 10/30/2026
Min.: 1
Mult.: 1
: 2.000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay 31.340In Stock
Min.: 1
Mult.: 1
: 2.000