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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 1-Form-A 100V 300mA Solid State Relay CPC1004NTR IXYS Integrated Circuits 1: ₩5,678.4 8,186On Order End of Life	Mfr. Part # CPC1004NTR Mouser Part # 849-CPC1004NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 100V 300mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	8,186On Order On Order Ship Dates Mfr. #: CPC1004NTR Stock: 0 On Order: 2,186 Expected 1/13/2027 6,000 Expected 7/30/2027 Factory Lead-Time: 36 Weeks	Cut Tape ₩5,678.4 ₩5,163.6 ₩4,789.2 ₩4,602 View Reel ₩3,728.4 ₩4,446 ₩4,243.2 ₩4,102.8 ₩3,962.4 ₩3,728.4 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1225NTR IXYS Integrated Circuits 1: ₩5,569.2 9,920Expected 6/28/2027 End of Life	Mfr. Part # CPC1225NTR Mouser Part # 849-CPC1225NTR 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	9,920Expected 6/28/2027	Cut Tape ₩5,569.2 ₩5,506.8 Reel ₩3,759.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay CPC1560GS IXYS Integrated Circuits 1: ₩13,041.6 3,298On Order End of Life	Mfr. Part # CPC1560GS Mouser Part # 849-CPC1560GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3,298On Order On Order Ship Dates Mfr. #: CPC1560GS Stock: 0 On Order: 2,298 Expected 5/17/2027 1,000 Expected 12/29/2027 Factory Lead-Time: 54 Weeks	₩13,041.6 ₩12,230.4 ₩10,873.2 ₩10,327.2 View ₩9,781.2 ₩9,126	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1978J IXYS Integrated Circuits 1: ₩39,748.8 860On Order End of Life	Mfr. Part # CPC1978J Mouser Part # 849-CPC1978J 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	860On Order On Order Ship Dates Mfr. #: CPC1978J Stock: 0 On Order: 160 Expected 12/21/2026 375 Expected 3/31/2027 325 Expected 5/6/2027 Factory Lead-Time: 54 Weeks	₩39,748.8 ₩36,535.2 ₩34,616.4 ₩32,697.6	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST iso PLUS-264 CPC1979J IXYS Integrated Circuits 1: ₩62,743.2 6,034On Order End of Life	Mfr. Part # CPC1979J Mouser Part # 849-CPC1979J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST iso PLUS-264 Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	6,034On Order On Order Ship Dates Mfr. #: CPC1979J Stock: 0 On Order: 209 Expected 12/2/2026 5,825 Expected 12/10/2027 Factory Lead-Time: 73 Weeks	₩62,743.2 ₩56,113.2 ₩53,476.8 ₩51,526.8	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation CPC1983Y IXYS Integrated Circuits 1: ₩16,738.8 7,435On Order End of Life	Mfr. Part # CPC1983Y Mouser Part # 849-CPC1983Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7,435On Order On Order Ship Dates Mfr. #: CPC1983Y Stock: 0 On Order: 610 Expected 11/18/2026 6,825 Expected 7/29/2027 Factory Lead-Time: 40 Weeks	₩16,738.8 ₩15,334.8 ₩14,086.8 ₩13,478.4 View ₩12,682.8 ₩12,105.6	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount RELAY, SS ICS CPC1983YE IXYS Integrated Circuits 1: ₩17,082 12,866On Order End of Life	Mfr. Part # CPC1983YE Mouser Part # 849-CPC1983YE End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY, SS ICS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	12,866On Order On Order Ship Dates Mfr. #: CPC1983YE Stock: 0 On Order: 7,016 Expected 11/18/2026 5,850 Expected 2/15/2027 Factory Lead-Time: 37 Weeks	₩17,082 ₩15,896.4 ₩14,539.2 ₩14,040 View ₩13,556.4 ₩12,948	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 100V 300mA Double Pole Relay LAA108STR IXYS Integrated Circuits 1: ₩8,299.2 7,000On Order End of Life	Mfr. Part # LAA108STR Mouser Part # 849-LAA108STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V 300mA Double Pole Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7,000On Order On Order Ship Dates Mfr. #: LAA108STR Stock: 0 On Order: 5,000 Expected 7/28/2027 2,000 Expected 7/30/2027 Factory Lead-Time: 36 Weeks	Cut Tape ₩8,299.2 ₩7,503.6 ₩6,926.4 ₩6,567.6 View Reel ₩5,444.4 ₩6,255.6 ₩5,974.8 ₩5,772 ₩5,444.4 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Triac & SCR Output Optocouplers AC SS Power Switch Dual Power SCR Out CPC1976YX6 IXYS Integrated Circuits 1: ₩16,536 455Expected 2/22/2027	Mfr. Part # CPC1976YX6 Mouser Part # 849-CPC1976YX6	IXYS Integrated Circuits	Triac & SCR Output Optocouplers AC SS Power Switch Dual Power SCR Out Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	455Expected 2/22/2027	₩16,536 ₩13,494 ₩11,684.4 ₩10,935.6 View ₩10,561.2 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A SSR LCA701 IXYS Integrated Circuits 1: ₩18,532.8 707Expected 11/16/2026	Mfr. Part # LCA701 Mouser Part # 849-LCA701	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	707Expected 11/16/2026	₩18,532.8 ₩16,286.4 ₩15,522 ₩14,835.6 View ₩14,149.2 ₩12,667.2	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A LCA710R IXYS Integrated Circuits 1: ₩15,584.4 946Expected 7/21/2027	Mfr. Part # LCA710R Mouser Part # 849-LCA710R	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	946Expected 7/21/2027	₩15,584.4 ₩14,664 ₩13,135.2 ₩12,495.6 View ₩11,980.8 ₩11,434.8	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA712STR IXYS Integrated Circuits 1: ₩17,534.4 Lead-Time 36 Weeks	Mfr. Part # LCA712STR Mouser Part # 849-LCA712STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Lead-Time 36 Weeks	Cut Tape ₩17,534.4 ₩15,631.2 ₩14,929.2 ₩14,383.2 View Reel ₩11,700 ₩13,774.8 ₩12,870 ₩12,433.2 ₩11,700 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay LCA717S IXYS Integrated Circuits 1: ₩17,035.2 2,180Expected 10/23/2026	Mfr. Part # LCA717S Mouser Part # 849-LCA717S	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2,180Expected 10/23/2026	₩17,035.2 ₩15,958.8 ₩14,180.4 ₩13,478.4 View ₩12,776.4 ₩11,668.8 ₩11,278.8 ₩10,888.8	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA110 IXYS Integrated Circuits 1: ₩22,323.6 485On Order	Mfr. Part # PAA110 Mouser Part # 849-PAA110	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	485On Order On Order Ship Dates Mfr. #: PAA110 Stock: 0 On Order: 85 Expected 1/13/2027 400 Expected 5/17/2027 Factory Lead-Time: 35 Weeks	₩22,323.6 ₩19,843.2 ₩18,860.4 ₩17,534.4 ₩16,926	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR PAA150 IXYS Integrated Circuits 1: ₩22,183.2 192On Order	Mfr. Part # PAA150 Mouser Part # 849-PAA150	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	192On Order On Order Ship Dates Mfr. #: PAA150 Stock: 0 On Order: 92 Expected 5/24/2027 100 Expected 7/19/2027 Factory Lead-Time: 36 Weeks	₩22,183.2 ₩19,734 ₩18,798 ₩17,799.6 ₩17,191.2	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR PAA191S IXYS Integrated Circuits 1: ₩22,838.4 712Expected 3/17/2027	Mfr. Part # PAA191S Mouser Part # 849-PAA191S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	712Expected 3/17/2027	₩22,838.4 ₩20,358 ₩19,437.6 ₩18,735.6 View ₩18,096 ₩17,269.2	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA PLA192S IXYS Integrated Circuits 1: ₩11,044.8 1,825On Order	Mfr. Part # PLA192S Mouser Part # 849-PLA192S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,825On Order On Order Ship Dates Mfr. #: PLA192S Stock: 0 On Order: 875 Expected 11/23/2026 500 Expected 12/7/2026 450 Expected 4/16/2027 Factory Lead-Time: 35 Weeks	₩11,044.8 ₩9,843.6 ₩9,406.8 ₩9,079.2 View ₩8,767.2 ₩8,377.2	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR CPC1009NTR IXYS Integrated Circuits 1: ₩4,726.8 7,741On Order End of Life	Mfr. Part # CPC1009NTR Mouser Part # 849-CPC1009NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7,741On Order On Order Ship Dates Mfr. #: CPC1009NTR Stock: 0 On Order: 5,741 Expected 5/24/2027 2,000 Expected 8/2/2027 Factory Lead-Time: 36 Weeks	Cut Tape ₩4,726.8 ₩4,305.6 ₩3,962.4 ₩3,837.6 View Reel ₩3,057.6 ₩3,712.8 ₩3,556.8 ₩3,400.8 ₩3,057.6 ₩3,057.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1030N IXYS Integrated Circuits 1: ₩6,146.4 1,817Expected 4/19/2027 End of Life	Mfr. Part # CPC1030N Mouser Part # 849-CPC1030N 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	1,817Expected 4/19/2027	₩6,146.4 ₩5,475.6 ₩5,241.6 ₩5,038.8 View ₩4,851.6 ₩4,602 ₩4,477.2 ₩4,321.2	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay CPC1030NTR IXYS Integrated Circuits 1: ₩5,943.6 3,631Expected 3/8/2027 End of Life	Mfr. Part # CPC1030NTR Mouser Part # 849-CPC1030NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3,631Expected 3/8/2027	Cut Tape ₩5,943.6 ₩5,444.4 ₩5,007.6 ₩4,836 View Reel ₩4,056 ₩4,648.8 ₩4,430.4 ₩4,290 ₩4,134 ₩4,056 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GR IXYS Integrated Circuits 1: ₩7,129.2 600On Order End of Life	Mfr. Part # CPC1390GR Mouser Part # 849-CPC1390GR 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	600On Order On Order Ship Dates Mfr. #: CPC1390GR Stock: 0 On Order: 500 Expected 11/4/2026 100 Expected 12/2/2026 Factory Lead-Time: 36 Weeks	₩7,129.2 ₩6,427.2 ₩6,006 ₩5,756.4 View ₩5,522.4 ₩5,272.8	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation CPC1394G IXYS Integrated Circuits 1: ₩7,800 500Expected 12/28/2026 End of Life	Mfr. Part # CPC1394G Mouser Part # 849-CPC1394G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	500Expected 12/28/2026	₩7,800 ₩7,129.2 ₩6,692.4 ₩6,458.4 View ₩6,240 ₩5,912.4 ₩5,756.4	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510GS IXYS Integrated Circuits 1: ₩10,826.4 2,502On Order End of Life	Mfr. Part # CPC1510GS Mouser Part # 849-CPC1510GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2,502On Order On Order Ship Dates Mfr. #: CPC1510GS Stock: 0 On Order: 1,752 Expected 11/23/2026 750 Expected 12/29/2027 Factory Lead-Time: 61 Weeks	₩10,826.4 ₩9,500.4 ₩9,048 ₩8,736 View ₩8,439.6 ₩8,049.6	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1563GS IXYS Integrated Circuits 1: ₩10,420.8 1,100Expected 12/10/2026 End of Life	Mfr. Part # CPC1563GS Mouser Part # 849-CPC1563GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,100Expected 12/10/2026	₩10,420.8 ₩9,531.6 ₩8,767.2 ₩8,299.2 View ₩8,018.4 ₩7,644	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin DIP CPC1593G IXYS Integrated Circuits 1: ₩10,171.2 499Expected 11/3/2027 End of Life	Mfr. Part # CPC1593G Mouser Part # 849-CPC1593G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	499Expected 11/3/2027	₩10,171.2 ₩9,063.6 ₩8,658 ₩8,346 View ₩8,065.2 ₩7,113.6	Min.: 1 Mult.: 1