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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 (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount 100V 300mA Double Pole Relay LAA108STR IXYS Integrated Circuits 1: 4,58 € 7.000On Order End of Life	Mfr. Part No. LAA108STR Mouser Part No 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. No: LAA108STR Stock: 0 On Order: 5.000 Expected 7/28/2027 2.000 Expected 8/12/2027 Factory Lead Time: 36 Weeks	Cut Tape 4,58 € 4,14 € 3,82 € 3,62 € View Reel 3,01 € 3,45 € 3,29 € 3,18 € 3,01 € 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: 9,12 € 455Expected 4/6/2027	Mfr. Part No. CPC1976YX6 Mouser Part No 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 4/6/2027	9,12 € 7,44 € 6,44 € 6,05 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1030N IXYS Integrated Circuits 1: 3,39 € 3.617On Order End of Life	Mfr. Part No. CPC1030N Mouser Part No 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	3.617On Order On Order Ship Dates Mfr. No: CPC1030N Stock: 0 On Order: 1.417 Expected 4/5/2027 2.200 Expected 4/19/2027 Factory Lead Time: 23 Weeks	3,39 € 3,02 € 2,89 € 2,78 € View 2,67 € 2,54 € 2,47 € 2,38 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay CPC1030NTR IXYS Integrated Circuits 1: 3,28 € 4.000Expected 3/8/2027 End of Life	Mfr. Part No. CPC1030NTR Mouser Part No 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	4.000Expected 3/8/2027	Cut Tape 3,28 € 3,00 € 2,76 € 2,67 € View Reel 2,24 € 2,56 € 2,44 € 2,37 € 2,28 € 2,24 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation CPC1394G IXYS Integrated Circuits 1: 4,30 € 500Expected 2/3/2027 End of Life	Mfr. Part No. CPC1394G Mouser Part No 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 2/3/2027	4,30 € 3,93 € 3,69 € 3,56 € View 3,44 € 3,26 € 3,17 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510GS IXYS Integrated Circuits 1: 5,97 € 2.502On Order End of Life	Mfr. Part No. CPC1510GS Mouser Part No 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. No: CPC1510GS Stock: 0 On Order: 1.752 Expected 1/14/2027 750 Expected 1/14/2028 Factory Lead Time: 67 Weeks	5,97 € 5,24 € 4,99 € 4,82 € View 4,65 € 4,44 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1563GS IXYS Integrated Circuits 1: 5,74 € 1.100Expected 4/15/2027 End of Life	Mfr. Part No. CPC1563GS Mouser Part No 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 4/15/2027	5,74 € 5,25 € 4,83 € 4,58 € View 4,42 € 4,21 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin DIP CPC1593G IXYS Integrated Circuits 1: 5,61 € 499Expected 12/7/2026 End of Life	Mfr. Part No. CPC1593G Mouser Part No 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 12/7/2026	5,61 € 5,00 € 4,77 € 4,60 € View 4,45 € 3,92 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM T/R CPC1593GSTR IXYS Integrated Circuits 1: 5,36 € 1.742Expected 3/4/2027 End of Life	Mfr. Part No. CPC1593GSTR Mouser Part No 849-CPC1593GSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM T/R Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1.742Expected 3/4/2027	Cut Tape 5,36 € 4,77 € 4,56 € 4,40 € Reel 3,84 € View 4,26 € 4,05 € 3,96 € 3,82 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1779J IXYS Integrated Circuits 1: 23,68 € 100Expected 12/20/2027 End of Life	Mfr. Part No. CPC1779J Mouser Part No 849-CPC1779J 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	100Expected 12/20/2027	23,68 € 21,36 € 20,31 € 19,45 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SIP CPC1906Y IXYS Integrated Circuits 1: 10,76 € 291Expected 12/7/2026 End of Life	Mfr. Part No. CPC1906Y Mouser Part No 849-CPC1906Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 4PIN SIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	291Expected 12/7/2026	10,76 € 9,59 € 9,13 € 8,84 € View 8,52 € 7,46 €	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch CPC1943GS IXYS Integrated Circuits 1: 11,72 € 250Expected 12/14/2026 End of Life	Mfr. Part No. CPC1943GS Mouser Part No 849-CPC1943GS End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	250Expected 12/14/2026	11,72 € 9,16 € 8,20 € 7,91 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual Power Relay 60V, 1-Form-A CPC2907B IXYS Integrated Circuits 1: 18,02 € 785On Order End of Life	Mfr. Part No. CPC2907B Mouser Part No 849-CPC2907B End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual Power Relay 60V, 1-Form-A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	785On Order On Order Ship Dates Mfr. No: CPC2907B Stock: 0 On Order: 435 Expected 11/9/2026 350 Expected 11/13/2026 Factory Lead Time: 39 Weeks	18,02 € 16,03 € 14,72 € 14,22 € 13,73 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA110LSTR IXYS Integrated Circuits 1: 3,76 € 2.000Expected 1/13/2027 End of Life	Mfr. Part No. LCA110LSTR Mouser Part No 849-LCA110LSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2.000Expected 1/13/2027	Cut Tape 3,76 € 3,43 € 3,16 € 3,04 € View Reel 2,61 € 2,93 € 2,80 € 2,70 € 2,61 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1225N IXYS Integrated Circuits 1: 3,25 € 326Expected 1/13/2027 End of Life	Mfr. Part No. CPC1225N Mouser Part No 849-CPC1225N 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	326Expected 1/13/2027	3,25 € 3,04 € 2,71 € 2,57 € View 2,49 € 2,38 € 2,30 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V Single Pole SIP Power Relay CPC1926Y IXYS Integrated Circuits 1: 9,72 € 188Expected 11/23/2026 End of Life	Mfr. Part No. CPC1926Y Mouser Part No 849-CPC1926Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	188Expected 11/23/2026	9,72 € 8,89 € 8,01 € 7,68 € 7,37 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA110LS IXYS Integrated Circuits 1: 4,01 € 249Expected 6/30/2027 End of Life	Mfr. Part No. LCA110LS Mouser Part No 849-LCA110LS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	249Expected 6/30/2027	4,01 € 3,76 € 3,34 € 3,04 € View 2,92 € 2,69 € 2,59 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA LCA120L IXYS Integrated Circuits 1: 5,34 € 95Expected 7/5/2027 End of Life	Mfr. Part No. LCA120L Mouser Part No 849-LCA120L End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	95Expected 7/5/2027	5,34 € 5,31 € 4,72 € 4,47 € View 4,22 € 4,14 € 4,08 € 4,01 € 3,99 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA182S IXYS Integrated Circuits 1: 4,64 € 249Expected 6/9/2027 End of Life	Mfr. Part No. LCA182S Mouser Part No 849-LCA182S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	249Expected 6/9/2027	4,64 € 4,19 € 3,87 € 3,67 € View 3,48 € 3,33 € 3,07 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DUAL POLE CIRCUITS PAA127 IXYS Integrated Circuits 1: 6,35 € Non-Stocked	Mfr. Part No. PAA127 Mouser Part No 849-PAA127	IXYS Integrated Circuits	Solid State Relays - PCB Mount DUAL POLE CIRCUITS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked	6,35 € 5,95 € 5,29 € 5,02 € View 4,76 € 4,46 € 4,31 € 4,16 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual Single-Pole 1-Form-A, 280V,200mA PAA127STR IXYS Integrated Circuits 1.000: 3,98 € Non-Stocked	Mfr. Part No. PAA127STR Mouser Part No 849-PAA127STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual Single-Pole 1-Form-A, 280V,200mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked	Reel 3,98 €	Min.: 1.000 Mult.: 1.000 : 1.000
Solid State Relays - PCB Mount SP Open Relay 6-Pin Surface Mount PLA192ESTR IXYS Integrated Circuits 1.000: 2,14 € Non-Stocked	Mfr. Part No. PLA192ESTR Mouser Part No 849-PLA192ESTR	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP Open Relay 6-Pin Surface Mount Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked	Reel 2,14 €	Min.: 1.000 Mult.: 1.000 : 1.000
Solid State Relays - PCB Mount 1-Form-A 60V 150 mA Solid State Relay XAA117STR IXYS Integrated Circuits 1.000: 1,60 € Non-Stocked	Mfr. Part No. XAA117STR Mouser Part No 849-XAA117STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 150 mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked	Reel 1,60 € 1,48 €	Min.: 1.000 Mult.: 1.000 : 1.000
Solid State Relays - PCB Mount RELAY, SS ICS CPC1511Y IXYS Integrated Circuits 1: 10,00 € Non-Stocked Lead-Time 23 Weeks End of Life	Mfr. Part No. CPC1511Y Mouser Part No 576-CPC1511Y 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	Non-Stocked Lead-Time 23 Weeks	10,00 € 9,37 € 8,33 € 7,92 € View 7,50 € 6,86 € 6,62 € 6,40 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540G IXYS Integrated Circuits 1: 5,04 € Non-Stocked Lead-Time 34 Weeks End of Life	Mfr. Part No. CPC1540G Mouser Part No 849-CPC1540G 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	Non-Stocked Lead-Time 34 Weeks	5,04 € 4,49 € 4,29 € 4,14 € View 3,99 € 3,81 €	Min.: 1 Mult.: 1