Optocouplers / Photocouplers – Mouser Korea, Republic of

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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.	Mounting Style	Package / Case	Output Type
Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA PLA150 IXYS Integrated Circuits 1: ₩13,572 835In Stock	Mfr. Part # PLA150 Mouser Part # 849-PLA150	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	835In Stock	₩13,572 ₩12,105.6 ₩11,559.6 ₩11,154 View ₩10,764 ₩10,233.6 ₩9,843.6 ₩8,970 Quote	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA PLA150STR IXYS Integrated Circuits 1: ₩14,118 1,089In Stock	Mfr. Part # PLA150STR Mouser Part # 849-PLA150STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,089In Stock	Cut Tape ₩14,118 ₩13,322.4 Reel ₩9,406.8 ₩8,314.8 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA PLA160STR IXYS Integrated Circuits 1: ₩13,665.6 754In Stock	Mfr. Part # PLA160STR Mouser Part # 849-PLA160STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	754In Stock	Cut Tape ₩13,665.6 ₩12,183.6 ₩11,622 ₩11,138.4 View Reel ₩9,328.8 ₩10,654.8 ₩10,030.8 ₩9,687.6 ₩9,328.8 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount		MOSFET
Solid State Relays - PCB Mount Single Pole 800V, 100mA SSR PLA171P IXYS Integrated Circuits 1: ₩11,154 971In Stock	Mfr. Part # PLA171P Mouser Part # 849-PLA171P	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole 800V, 100mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	971In Stock	₩11,154 ₩10,233.6 ₩9,843.6 ₩9,484.8 View ₩9,157.2 ₩8,938.8 ₩8,626.8 ₩8,330.4 ₩7,332	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay PLA172PTR IXYS Integrated Circuits 1: ₩15,116.4 79In Stock	Mfr. Part # PLA172PTR Mouser Part # 849-PLA172PTR	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	79In Stock	Cut Tape ₩15,116.4 ₩13,478.4 ₩12,870 ₩12,433.2 View Reel ₩10,483.2 ₩12,012 ₩11,403.6 ₩11,013.6 ₩10,483.2 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA PLA191S IXYS Integrated Circuits 1: ₩14,835.6 731In Stock	Mfr. Part # PLA191S Mouser Part # 849-PLA191S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	731In Stock	₩14,835.6 ₩13,213.2 ₩12,792 ₩12,121.2 View ₩11,247.6 ₩10,748.4 Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA193STR IXYS Integrated Circuits 1: ₩10,155.6 1,719In Stock 2,000Expected 11/13/2026	Mfr. Part # PLA193STR Mouser Part # 849-PLA193STR	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	1,719In Stock 2,000Expected 11/13/2026	Cut Tape ₩10,155.6 ₩9,781.2 Reel ₩6,910.8 ₩6,583.2 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay IXYS Integrated Circuits CPC1965G CPC1965G IXYS Integrated Circuits 1: ₩13,213.2 11,365In Stock 10,775Expected 8/26/2027 End of Life	Mfr. Part # CPC1965G Mouser Part # 849-CPC1965G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	11,365In Stock 10,775Expected 8/26/2027	₩13,213.2 ₩11,778 ₩10,592.4 ₩10,218 View ₩9,843.6 ₩9,110.4 ₩8,938.8 ₩8,736 Quote	Min.: 1 Mult.: 1	PCB Mount		SCR
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016N IXYS Integrated Circuits 1: ₩5,007.6 1,067In Stock End of Life	Mfr. Part # CPC1016N Mouser Part # 849-CPC1016N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,067In Stock	₩5,007.6 ₩4,695.6 ₩4,180.8 ₩4,024.8 View ₩3,884.4 ₩3,697.2 ₩3,572.4 ₩3,447.6	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay CPC1017NTR IXYS Integrated Circuits 1: ₩2,995.2 5,505In Stock 136,000On Order End of Life	Mfr. Part # CPC1017NTR Mouser Part # 849-CPC1017NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	5,505In Stock 136,000On Order On Order Ship Dates Mfr. #: CPC1017NTR Stock: 5,505 Can Ship Immediately On Order: 68,000 Expected 12/2/2026 68,000 Expected 6/17/2027 Factory Lead-Time: 30 Weeks	Cut Tape ₩2,995.2 ₩2,761.2 ₩2,542.8 ₩2,464.8 View Reel ₩2,121.6 ₩2,371.2 ₩2,246.4 ₩2,184 ₩2,121.6 ₩2,121.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay CPC1019N IXYS Integrated Circuits 1: ₩6,661.2 4,926In Stock 4,100Expected 6/2/2027 End of Life	Mfr. Part # CPC1019N Mouser Part # 849-CPC1019N 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	4,926In Stock 4,100Expected 6/2/2027	₩6,661.2 ₩6,006 ₩5,616 ₩5,366.4 View ₩5,163.6 ₩4,914 ₩4,758 ₩4,602 ₩4,586.4	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330G IXYS Integrated Circuits 1: ₩6,099.6 439In Stock End of Life	Mfr. Part # CPC1330G Mouser Part # 849-CPC1330G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	439In Stock	₩6,099.6 ₩5,725.2 ₩5,148 ₩4,352.4 View ₩4,087.2 ₩4,009.2 ₩3,993.6	Min.: 1 Mult.: 1	PCB Mount	DIP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GR IXYS Integrated Circuits 1: ₩6,084 1,570In Stock 500Expected 1/13/2027 End of Life	Mfr. Part # CPC1330GR Mouser Part # 849-CPC1330GR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,570In Stock 500Expected 1/13/2027	₩6,084 ₩5,709.6 ₩5,070 ₩4,836 View ₩4,664.4 ₩4,446 ₩4,305.6 ₩4,149.6	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393G IXYS Integrated Circuits 1: ₩7,410 1,005In Stock End of Life	Mfr. Part # CPC1393G Mouser Part # 849-CPC1393G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,005In Stock	₩7,410 ₩6,614.4 ₩6,318 ₩6,099.6 View ₩5,850 ₩5,553.6 ₩5,428.8 ₩5,179.2 ₩4,960.8	Min.: 1 Mult.: 1	PCB Mount	DIP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation CPC1394GRTR IXYS Integrated Circuits 1: ₩6,536.4 2,527In Stock 5,000On Order End of Life	Mfr. Part # CPC1394GRTR Mouser Part # 849-CPC1394GRTR 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	2,527In Stock 5,000On Order On Order Ship Dates Mfr. #: CPC1394GRTR Stock: 2,527 Can Ship Immediately On Order: 2,000 Expected 11/2/2026 3,000 Expected 7/30/2027 Factory Lead-Time: 36 Weeks	Cut Tape ₩6,536.4 ₩6,021.6 ₩5,818.8 ₩5,600.4 Reel ₩5,070 View ₩5,350.8 ₩5,226 ₩5,038.8 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount		MOSFET
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540GS IXYS Integrated Circuits 1: ₩9,640.8 448In Stock 2,950On Order End of Life	Mfr. Part # CPC1540GS Mouser Part # 849-CPC1540GS 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	448In Stock 2,950On Order On Order Ship Dates Mfr. #: CPC1540GS Stock: 448 Can Ship Immediately On Order: 950 Expected 12/7/2026 2,000 Expected 3/1/2027 Factory Lead-Time: 54 Weeks	₩9,640.8 ₩9,032.4 ₩8,034 ₩7,628.4 View ₩7,222.8 ₩6,864 ₩6,614.4 ₩6,396	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1727J IXYS Integrated Circuits 1: ₩35,864.4 344In Stock End of Life	Mfr. Part # CPC1727J Mouser Part # 849-CPC1727J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount DC Only Single Pole i4-PAC Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	344In Stock	₩35,864.4 ₩34,320 ₩29,156.4 ₩25,506 Quote Quote	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay CPC1909J IXYS Integrated Circuits 1: ₩32,775.6 479In Stock 325Expected 7/23/2027 End of Life	Mfr. Part # CPC1909J Mouser Part # 849-CPC1909J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	479In Stock 325Expected 7/23/2027	₩32,775.6 ₩30,139.2 ₩28,548 ₩26,972.4 View ₩25,989.6 ₩24,819.6 ₩23,961.6	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Triac & SCR Output Optocouplers 400V, 1mA AC Solid State Relay CPC1945G IXYS Integrated Circuits 1: ₩14,882.4 105In Stock End of Life	Mfr. Part # CPC1945G Mouser Part # 849-CPC1945G End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 400V, 1mA AC Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	105In Stock	₩14,882.4 ₩11,512.8 ₩9,313.2 ₩8,548.8 View ₩8,127.6 Quote	Min.: 1 Mult.: 1	Through Hole	DIP-16
Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay CPC1981Y IXYS Integrated Circuits 1: ₩12,823.2 398In Stock 2,925On Order End of Life	Mfr. Part # CPC1981Y Mouser Part # 849-CPC1981Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	398In Stock 2,925On Order On Order Ship Dates Mfr. #: CPC1981Y Stock: 398 Can Ship Immediately On Order: 1,500 Expected 2/8/2027 1,425 Expected 2/12/2027 Factory Lead-Time: 54 Weeks	₩12,823.2 ₩11,731.2 ₩10,779.6 ₩10,311.6 View ₩9,874.8 ₩8,611.2	Min.: 1 Mult.: 1	PCB Mount	SIP-4	MOSFET
Solid State Relays - PCB Mount 120MA DPST 8-DIP LAA110 IXYS Integrated Circuits 1: ₩15,038.4 956In Stock 5,400On Order End of Life	Mfr. Part # LAA110 Mouser Part # 849-LAA110 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 120MA DPST 8-DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	956In Stock 5,400On Order On Order Ship Dates Mfr. #: LAA110 Stock: 956 Can Ship Immediately On Order: 2,800 Expected 7/15/2027 1,050 Expected 7/19/2027 1,550 Expected 7/23/2027 Factory Lead-Time: 36 Weeks	₩15,038.4 ₩13,790.4 ₩12,636 ₩12,074.4 View ₩11,544 ₩10,857.6	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110L IXYS Integrated Circuits 1: ₩14,664 94In Stock End of Life	Mfr. Part # LAA110L Mouser Part # 849-LAA110L End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	94In Stock	₩14,664 ₩13,072.8 ₩12,480 ₩12,043.2 View ₩11,013.6 ₩10,561.2 ₩10,233.6 ₩9,999.6 Quote	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole LAA125LS IXYS Integrated Circuits 1: ₩16,551.6 83In Stock End of Life	Mfr. Part # LAA125LS Mouser Part # 849-LAA125LS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	83In Stock	₩16,551.6 ₩15,506.4 ₩13,790.4 ₩13,088.4 View ₩12,402 ₩11,356.8 ₩10,966.8 ₩10,592.4	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127LS IXYS Integrated Circuits 1: ₩19,593.6 90In Stock End of Life	Mfr. Part # LAA127LS Mouser Part # 849-LAA127LS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	90In Stock	₩19,593.6 ₩17,409.6 ₩16,551.6 ₩15,678 View ₩14,913.6 ₩14,242.8 ₩13,759.2 ₩13,275.6	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127STR IXYS Integrated Circuits 1: ₩18,033.6 442In Stock End of Life	Mfr. Part # LAA127STR Mouser Part # 849-LAA127STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	442In Stock	Cut Tape ₩18,033.6 ₩16,068 ₩15,350.4 ₩14,820 View Reel ₩12,651.6 ₩14,227.2 ₩13,572 ₩13,119.6 ₩12,651.6 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount	SMD DIP-8	MOSFET

OptoMOS 1-Form-A (SPST-NO) Solid State Relays

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