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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.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (KRW) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay PLA172P IXYS Integrated Circuits 1: ₩15,834 122In Stock	Mfr. Part # PLA172P Mouser Part # 849-PLA172P	IXYS Integrated Circuits	Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay Learn More about IXYS Integrated Circuits ixys pla172p relays	Datasheet	122In Stock	₩15,834 ₩15,178.8 ₩13,962 ₩12,714 View ₩12,386.4 ₩11,122.8 ₩10,857.6 ₩10,592.4 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR OAA160S IXYS Integrated Circuits 1: ₩16,723.2 167In Stock	Mfr. Part # OAA160S Mouser Part # 849-OAA160S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	167In Stock	₩16,723.2 ₩15,256.8 ₩14,664 ₩14,164.8 View ₩13,977.6 ₩12,854.4 ₩12,511.2 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA191 IXYS Integrated Circuits 1: ₩19,047.6 90In Stock	Mfr. Part # PAA191 Mouser Part # 849-PAA191	IXYS Integrated Circuits	Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	90In Stock	₩19,047.6 ₩17,472 ₩16,863.6 ₩16,286.4 View ₩15,163.2 ₩14,944.8 ₩14,773.2 ₩14,726.4 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143S IXYS Integrated Circuits 1: ₩10,249.2 244In Stock	Mfr. Part # PLA143S Mouser Part # 849-PLA143S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	244In Stock	₩10,249.2 ₩9,516 ₩8,923.2 ₩8,595.6 View ₩8,268 ₩7,878 ₩7,737.6 ₩7,644 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA PLA150S IXYS Integrated Circuits 1: ₩13,665.6 137In Stock	Mfr. Part # PLA150S Mouser Part # 849-PLA150S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	137In Stock	₩13,665.6 ₩12,183.6 ₩11,637.6 ₩10,124.4 View ₩9,999.6 ₩8,970 ₩8,782.8 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 6PIN DIP PLA160 IXYS Integrated Circuits 1: ₩11,450.4 213In Stock	Mfr. Part # PLA160 Mouser Part # 849-PLA160	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 6PIN DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	213In Stock	₩11,450.4 ₩10,920 ₩10,779.6 ₩9,141.6 View ₩8,876.4 ₩8,751.6 ₩8,626.8	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972G IXYS Integrated Circuits 1: ₩4,570.8 424In Stock End of Life	Mfr. Part # CPC1972G Mouser Part # 849-CPC1972G End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	424In Stock	₩4,570.8 ₩3,666 ₩3,182.4 ₩3,104.4 View ₩2,839.2 ₩2,730 Quote	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GS IXYS Integrated Circuits 1: ₩4,570.8 489In Stock End of Life	Mfr. Part # CPC1972GS Mouser Part # 849-CPC1972GS End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	489In Stock	₩4,570.8 ₩3,759.6 ₩3,447.6 ₩3,088.8 View ₩2,948.4 ₩2,901.6 ₩2,808 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD LCA125 IXYS Integrated Circuits 1: ₩11,138.4 160In Stock End of Life	Mfr. Part # LCA125 Mouser Part # 849-LCA125 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	160In Stock	₩11,138.4 ₩9,235.2 ₩8,642.4 ₩8,330.4 View ₩7,940.4 ₩7,893.6 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143STR IXYS Integrated Circuits 1: ₩11,809.2 318In Stock	Mfr. Part # PLA143STR Mouser Part # 849-PLA143STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	318In Stock	Cut Tape ₩11,809.2 ₩11,076 ₩9,843.6 ₩9,344.4 Reel ₩7,082.4 View ₩8,860.8 ₩8,314.8 ₩8,018.4 ₩7,051.2 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA193S IXYS Integrated Circuits 1: ₩10,030.8 294In Stock	Mfr. Part # PLA193S Mouser Part # 849-PLA193S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	294In Stock	₩10,030.8 ₩8,938.8 ₩8,533.2 ₩8,236.8 View ₩7,940.4 ₩7,363.2 ₩7,222.8 ₩7,129.2 ₩7,113.6	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS CPC1004N IXYS Integrated Circuits 1: ₩5,709.6 12,100In Stock End of Life	Mfr. Part # CPC1004N Mouser Part # 849-CPC1004N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	12,100In Stock	₩5,709.6 ₩5,101.2 ₩4,820.4 ₩4,648.8 View ₩4,508.4 ₩4,274.4 ₩4,149.6 ₩4,009.2	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP CPC1006N IXYS Integrated Circuits 1: ₩1,965.6 138,291In Stock End of Life	Mfr. Part # CPC1006N Mouser Part # 849-CPC1006N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	138,291In Stock	₩1,965.6 ₩1,762.8 ₩1,684.8 ₩1,622.4 View ₩1,555.3 ₩1,489.8 ₩1,283.9 ₩1,240.2 ₩1,165.3	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1008N IXYS Integrated Circuits 1: ₩3,806.4 64,112In Stock End of Life	Mfr. Part # CPC1008N Mouser Part # 849-CPC1008N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 4PIN SOP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	64,112In Stock	₩3,806.4 ₩3,541.2 ₩3,432 ₩3,354 View ₩2,932.8 ₩2,839.2 ₩2,792.4 ₩2,776.8	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay CPC1019NTR IXYS Integrated Circuits 1: ₩6,099.6 60,738In Stock End of Life	Mfr. Part # CPC1019NTR Mouser Part # 849-CPC1019NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	60,738In Stock	Cut Tape ₩6,099.6 ₩5,428.8 ₩5,194.8 ₩5,007.6 View Reel ₩4,149.6 ₩4,836 ₩4,617.6 ₩4,461.6 ₩4,305.6 ₩4,149.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1025NTR IXYS Integrated Circuits 1: ₩4,882.8 104,956In Stock End of Life	Mfr. Part # CPC1025NTR Mouser Part # 849-CPC1025NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	104,956In Stock	Cut Tape ₩4,882.8 ₩4,570.8 ₩4,071.6 ₩3,931.2 Reel ₩3,369.6 View ₩3,790.8 ₩3,619.2 ₩3,494.4 ₩3,369.6 ₩3,104.4 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GRTR IXYS Integrated Circuits 1: ₩6,489.6 10,206In Stock End of Life	Mfr. Part # CPC1390GRTR Mouser Part # 849-CPC1390GRTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole Relay 400V 140mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	10,206In Stock	Cut Tape ₩6,489.6 ₩5,803.2 ₩5,538 ₩5,319.6 Reel ₩4,695.6 View ₩5,132.4 ₩4,898.4 ₩4,726.8 ₩4,524 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP CPC1984Y IXYS Integrated Circuits 1: ₩27,050.4 4,075In Stock End of Life	Mfr. Part # CPC1984Y Mouser Part # 849-CPC1984Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	4,075In Stock	₩27,050.4 ₩24,102 ₩23,010 ₩22,214.4 View ₩21,403.2 ₩20,264.4 ₩19,578 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1988J IXYS Integrated Circuits 1: ₩63,024 583In Stock End of Life	Mfr. Part # CPC1988J Mouser Part # 849-CPC1988J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	583In Stock	₩63,024 ₩60,481.2 ₩57,735.6 ₩55,754.4 View ₩53,835.6 ₩51,136.8 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710S IXYS Integrated Circuits 1: ₩30,170.4 4,928In Stock End of Life	Mfr. Part # LAA710S Mouser Part # 849-LAA710S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	4,928In Stock	₩30,170.4 ₩26,878.8 ₩25,677.6 ₩24,772.8 View ₩23,930.4 ₩22,713.6 ₩21,933.6 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710STR IXYS Integrated Circuits 1: ₩30,560.4 3,105In Stock End of Life	Mfr. Part # LAA710STR Mouser Part # 849-LAA710STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3,105In Stock	Cut Tape ₩30,560.4 ₩27,222 ₩25,989.6 ₩24,616.8 View Reel ₩20,935.2 ₩23,259.6 ₩21,933.6 ₩21,169.2 ₩20,935.2 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out CPC1966YX6 IXYS Integrated Circuits 1: ₩21,730.8 2,139In Stock	Mfr. Part # CPC1966YX6 Mouser Part # 849-CPC1966YX6	IXYS Integrated Circuits	Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2,139In Stock	₩21,730.8 ₩19,359.6 ₩18,470.4 ₩17,752.8 View ₩16,941.6 ₩16,146 ₩15,584.4 ₩15,303.6 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP AC Solid State Power Switch CPC1998J IXYS Integrated Circuits 1: ₩33,930 3,500In Stock 7,700Expected 4/15/2027	Mfr. Part # CPC1998J Mouser Part # 849-CPC1998J	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP AC Solid State Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3,500In Stock 7,700Expected 4/15/2027	₩33,930 ₩30,810 ₩29,343.6 ₩28,064.4 View ₩27,112.8 ₩25,942.8 ₩25,287.6	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA701S IXYS Integrated Circuits 1: ₩16,083.6 6,626In Stock	Mfr. Part # LCA701S Mouser Part # 849-LCA701S	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	6,626In Stock	₩16,083.6 ₩14,336.4 ₩13,681.2 ₩13,010.4 View ₩12,183.6 ₩11,653.2 ₩11,403.6 ₩11,310 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA701STR IXYS Integrated Circuits 1: ₩15,366 2,664In Stock	Mfr. Part # LCA701STR Mouser Part # 849-LCA701STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2,664In Stock	Cut Tape ₩15,366 ₩13,696.8 ₩13,072.8 ₩12,620.4 View Reel ₩10,795.2 ₩12,199.2 ₩11,590.8 ₩11,185.2 ₩10,795.2 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000