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.

Types of Optocouplers/Photocouplers

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Results: 277
Select Image Part # Mfr. Description Datasheet Availability Pricing (HKD) Filter the results in the table by unit price based on your quantity. Qty. RoHS Mounting Style Package/Case Number of Channels Output Type
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA 731In Stock
Min.: 1
Mult.: 1

PCB Mount SMD DIP-6 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA 475In Stock
2,000Expected 6/5/2027
Min.: 1
Mult.: 1
: 1,000

PCB Mount SMD DIP-6 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA 1,719In Stock
2,000Expected 18/11/2026
Min.: 1
Mult.: 1
: 1,000

PCB Mount SMD DIP-6 MOSFET
IXYS Integrated Circuits CPC1965G
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay 12,797In Stock
Min.: 1
Mult.: 1

PCB Mount SCR
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR 1,168In Stock
2,000Expected 10/6/2027
Min.: 1
Mult.: 1
: 2,000

PCB Mount SOP-4 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay 2,500In Stock
3,000Expected 5/5/2027
Min.: 1
Mult.: 1

PCB Mount SOP-4 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay 3,619In Stock
Min.: 1
Mult.: 1
: 2,000

PCB Mount SOP-4 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 4PIN SOP 1,753In Stock
Min.: 1
Mult.: 1

PCB Mount SOP-4 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay 1,570In Stock
500Expected 9/12/2026
Min.: 1
Mult.: 1

PCB Mount SMD DIP-4 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation 2,815In Stock
5,000On Order
Min.: 1
Mult.: 1
: 1,000

PCB Mount MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY, SS ICS 1,003In Stock
Min.: 1
Mult.: 1
: 1,000

PCB Mount SOIC-16 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V Single Pole DC Power Relay 572In Stock
Min.: 1
Mult.: 1

PCB Mount i4-PAC MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay 20In Stock
29,725On Order
Min.: 1
Mult.: 1

PCB Mount SOIC-8 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay 539In Stock
Min.: 1
Mult.: 1

PCB Mount ISOPLUS264 MOSFET
IXYS Integrated Circuits Triac & SCR Output Optocouplers 400V, 1mA AC Solid State Relay 105In Stock
Min.: 1
Mult.: 1

Through Hole DIP-16
IXYS Integrated Circuits Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay 116In Stock
1,050On Order
Min.: 1
Mult.: 1

PCB Mount ISOPLUS264 MOSFET
IXYS Integrated Circuits Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay 3,554In Stock
Min.: 1
Mult.: 1
: 1,000

SMD/SMT
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST i4-PAC 600V 808In Stock
425Expected 16/10/2026
Min.: 1
Mult.: 1

PCB Mount ISOPLUS264 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay 2,823In Stock
Min.: 1
Mult.: 1

PCB Mount SIP-4 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 120MA DPST 8-DIP 1,152In Stock
4,700On Order
Min.: 1
Mult.: 1

PCB Mount DIP-8 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole 96In Stock
Min.: 1
Mult.: 1

PCB Mount DIP-8 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP 2,373In Stock
100Expected 29/3/2027
Min.: 1
Mult.: 1

PCB Mount SMD DIP-8 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole 83In Stock
Min.: 1
Mult.: 1

PCB Mount SMD DIP-8 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole 103In Stock
Min.: 1
Mult.: 1

PCB Mount SMD DIP-8 MOSFET
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole 90In Stock
Min.: 1
Mult.: 1

PCB Mount SMD DIP-8 MOSFET