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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 (TWD) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA140 IXYS Integrated Circuits 1: NT$475.73 2,008In Stock	Mfr. Part # PAA140 Mouser Part # 849-PAA140	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	2,008In Stock	NT$475.73 NT$433.79 NT$417.65 NT$402.60 View NT$386.46 NT$372.84 NT$363.52 NT$361.01	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014N IXYS Integrated Circuits 1: NT$114.00 203,725In Stock End of Life	Mfr. Part # CPC1014N Mouser Part # 849-CPC1014N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	203,725In Stock	NT$114.00 NT$101.46 NT$94.29 NT$91.06 View NT$87.83 NT$85.68 NT$83.53 NT$80.66	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: NT$130.49 11,703In Stock End of Life	Mfr. Part # CPC1330GRTR Mouser Part # 849-CPC1330GRTR 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	11,703In Stock	Cut Tape NT$130.49 NT$116.51 NT$111.14 NT$105.76 Reel NT$83.53 View NT$102.53 NT$97.87 NT$94.64 NT$82.46 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay CPC1918J IXYS Integrated Circuits 1: NT$793.00 7,144In Stock 7,550Expected 2/1/2027 End of Life	Mfr. Part # CPC1918J Mouser Part # 849-CPC1918J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7,144In Stock 7,550Expected 2/1/2027	NT$793.00 NT$713.42 NT$615.90 NT$593.32 View NT$577.90 NT$558.90 NT$544.92 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016NTR IXYS Integrated Circuits 1: NT$108.63 22,193In Stock End of Life	Mfr. Part # CPC1016NTR Mouser Part # 849-CPC1016NTR 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	22,193In Stock	Cut Tape NT$108.63 NT$97.15 NT$91.42 NT$88.55 Reel NT$68.12 View NT$85.32 NT$81.38 NT$78.87 NT$68.12 NT$65.61 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1035N IXYS Integrated Circuits 1: NT$125.48 27,969In Stock End of Life	Mfr. Part # CPC1035N Mouser Part # 849-CPC1035N 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	27,969In Stock	NT$125.48 NT$100.38 NT$93.93 NT$84.61 View NT$82.46 NT$79.59 NT$77.08 NT$75.64 NT$75.29	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110STR IXYS Integrated Circuits 1: NT$314.76 9,758In Stock End of Life	Mfr. Part # LAA110STR Mouser Part # 849-LAA110STR 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	9,758In Stock	Cut Tape NT$314.76 NT$280.35 NT$267.80 NT$258.84 Reel NT$183.55 View NT$249.87 NT$236.61 NT$228.36 NT$183.19 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount SPST NO Relay CPC1018N IXYS Integrated Circuits 1: NT$184.63 42,274In Stock End of Life	Mfr. Part # CPC1018N Mouser Part # 849-CPC1018N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST NO Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	42,274In Stock	NT$184.63 NT$151.65 NT$141.61 NT$136.95 View NT$125.48 NT$121.53 NT$119.74 NT$117.59	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: NT$119.74 8,648In Stock End of Life	Mfr. Part # CPC1035NTR Mouser Part # 849-CPC1035NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	8,648In Stock	Cut Tape NT$119.74 NT$106.83 NT$101.10 NT$97.15 View Reel NT$72.78 NT$93.93 NT$89.63 NT$86.76 NT$83.53 NT$72.78 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA132 IXYS Integrated Circuits 1: NT$604.43 269In Stock	Mfr. Part # PAA132 Mouser Part # 849-PAA132	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	269In Stock	NT$604.43 NT$537.39 NT$510.50 NT$483.62 View NT$456.73 NT$429.12 NT$414.07	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132STR IXYS Integrated Circuits 1: NT$576.11 1,188In Stock	Mfr. Part # PAA132STR Mouser Part # 849-PAA132STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,188In Stock	Cut Tape NT$576.11 NT$512.30 NT$486.48 NT$461.03 View Reel NT$368.54 NT$435.22 NT$408.69 NT$394.71 NT$368.54 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110S IXYS Integrated Circuits 1: NT$492.22 237In Stock	Mfr. Part # PAA110S Mouser Part # 849-PAA110S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	237In Stock	NT$492.22 NT$438.45 NT$426.97 NT$351.33 View NT$348.46 NT$343.44 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132S IXYS Integrated Circuits 1: NT$604.43 1,240In Stock	Mfr. Part # PAA132S Mouser Part # 849-PAA132S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,240In Stock	NT$604.43 NT$537.39 NT$510.50 NT$483.62 View NT$456.73 NT$429.12 NT$414.07	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA712 IXYS Integrated Circuits 1: NT$397.94 848In Stock	Mfr. Part # LCA712 Mouser Part # 849-LCA712	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	848In Stock	NT$397.94 NT$354.56 NT$338.78 NT$290.39 NT$276.05	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110STR IXYS Integrated Circuits 1: NT$469.99 1,400In Stock	Mfr. Part # PAA110STR Mouser Part # 849-PAA110STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,400In Stock	Cut Tape NT$469.99 NT$419.09 NT$400.09 NT$386.46 View Reel NT$322.65 NT$370.69 NT$352.41 NT$340.22 NT$322.65 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount SPST i4-PAC 60V CPC1908J IXYS Integrated Circuits 1: NT$755.36 200In Stock End of Life	Mfr. Part # CPC1908J Mouser Part # 849-CPC1908J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST i4-PAC 60V Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	200In Stock	NT$755.36 NT$673.26 NT$642.43 NT$620.21 View NT$560.34 NT$537.75	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST 1 Form A LAA127 IXYS Integrated Circuits 1: NT$379.29 611In Stock End of Life	Mfr. Part # LAA127 Mouser Part # 849-LAA127 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST 1 Form A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	611In Stock	NT$379.29 NT$345.95 NT$332.33 NT$321.22 View NT$308.31 NT$298.27 NT$283.22	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GR IXYS Integrated Circuits 1: NT$128.70 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	NT$128.70 NT$121.89 NT$116.51 NT$111.85 View NT$107.55 NT$102.17 NT$95.36 NT$83.53	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM CPC1593GS IXYS Integrated Circuits 1: NT$233.74 978In Stock End of Life	Mfr. Part # CPC1593GS Mouser Part # 849-CPC1593GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	978In Stock	NT$233.74 NT$208.29 NT$198.97 NT$174.59 View NT$167.78 NT$161.33 NT$155.95 NT$153.44	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1777J IXYS Integrated Circuits 1: NT$748.55 186In Stock End of Life	Mfr. Part # CPC1777J Mouser Part # 849-CPC1777J 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	186In Stock	NT$748.55 NT$666.81 NT$579.69 NT$560.69 View NT$551.01 NT$544.56 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, NO ISOPLUS-264 CPC1927J IXYS Integrated Circuits 1: NT$1,146.84 218In Stock End of Life	Mfr. Part # CPC1927J Mouser Part # 849-CPC1927J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP, NO ISOPLUS-264 Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	218In Stock	NT$1,146.84 NT$1,044.31 NT$996.99 NT$962.93 View NT$929.59 NT$799.81	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GSTR IXYS Integrated Circuits 1: NT$100.38 3,553In Stock End of Life	Mfr. Part # CPC1972GSTR Mouser Part # 849-CPC1972GSTR 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	3,553In Stock	Cut Tape NT$100.38 NT$82.46 NT$76.00 NT$69.55 Reel NT$62.38 View NT$61.30 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 250V, 1-Form-A SSR CPC1010N IXYS Integrated Circuits 1: NT$146.63 3,837In Stock End of Life	Mfr. Part # CPC1010N Mouser Part # 849-CPC1010N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V, 1-Form-A SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3,837In Stock	NT$146.63 NT$130.85 NT$124.76 NT$119.74 View NT$115.08 NT$109.70 NT$105.04 NT$101.46 NT$101.10	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1986J IXYS Integrated Circuits 1: NT$1,326.45 160In Stock End of Life	Mfr. Part # CPC1986J Mouser Part # 849-CPC1986J 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	160In Stock	NT$1,326.45 NT$1,188.79 NT$1,186.64 NT$1,127.12 NT$993.05	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay OMA160 IXYS Integrated Circuits 1: NT$246.29 226In Stock	Mfr. Part # OMA160 Mouser Part # 849-OMA160	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	226In Stock	NT$246.29 NT$187.50 NT$172.44 NT$165.27 View NT$162.04 NT$161.33	Min.: 1 Mult.: 1