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 Image Part # Mfr. Description Datasheet Availability Pricing (USD) 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 60V 750mA Solid State Relay 74,931In Stock
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay 68,191In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay 15,315In Stock
150,000On Order
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS 16,185In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay 40,980In Stock
92,000On Order
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 250V, 1-Form-A SSR 14,012In Stock
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay 10,643In Stock
12,000Expected 7/27/2026
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay 31,467In Stock
57,201On Order
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay 122,071In Stock
Min.: 1
Mult.: 1
: 2,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay 12,131In Stock
Min.: 1
Mult.: 1
: 1,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay 4,205In Stock
Min.: 1
Mult.: 1
: 1,000

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay 5,014In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation 8,079In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC 2,168In Stock
1,350Expected 2/1/2027
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC 1,661In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay 7,048In Stock
12,100On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay 1,089In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay 7,453In Stock
7,550Expected 1/25/2027
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out 2,168In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay 481In Stock
1,050On Order
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay 2,934In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP 4,065In Stock
1,600Expected 9/28/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay 608In Stock
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount SP AC Solid State Power Switch 4,742In Stock
2,725Expected 9/9/2026
Min.: 1
Mult.: 1

IXYS Integrated Circuits Solid State Relays - PCB Mount 120MA DPST 8-DIP 2,928In Stock
4,700On Order
Min.: 1
Mult.: 1