Optocouplers/Photocouplers – Mouser Singapore

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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 (SGD) 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 DPST-NO/NO 8PIN DIP PAA140 IXYS Integrated Circuits 1: $18.05 2,008In Stock	Mfr. Part No. PAA140 Mouser Part No 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	$18.05 $16.46 $15.84 $15.27 View $14.66 $14.14 $13.79 $13.70	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014N IXYS Integrated Circuits 1: $4.32 203,858In Stock End of Life	Mfr. Part No. CPC1014N Mouser Part No 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	203,858In Stock	$4.32 $3.85 $3.58 $3.45 View $3.33 $3.25 $3.17 $3.06	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: $4.95 11,703In Stock End of Life	Mfr. Part No. CPC1330GRTR Mouser Part No 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 $4.95 $4.42 $4.22 $4.01 Reel $3.17 View $3.89 $3.71 $3.59 $3.13 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay CPC1918J IXYS Integrated Circuits 1: $30.08 7,194In Stock 7,550Expected 13/1/2027 End of Life	Mfr. Part No. CPC1918J Mouser Part No 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	7,194In Stock 7,550Expected 13/1/2027	$30.08 $27.06 $23.36 $22.51 View $21.92 $21.20 $20.67 Quote	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016NTR IXYS Integrated Circuits 1: $4.12 22,193In Stock End of Life	Mfr. Part No. CPC1016NTR Mouser Part No 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 $4.12 $3.69 $3.47 $3.36 Reel $2.58 View $3.24 $3.09 $2.99 $2.58 $2.49 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount SPST NO Relay CPC1018N IXYS Integrated Circuits 1: $7.00 42,444In Stock End of Life	Mfr. Part No. CPC1018N Mouser Part No 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	42,444In Stock	$7.00 $5.75 $5.37 $5.20 View $4.76 $4.61 $4.54 $4.46	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: $4.54 9,043In Stock End of Life	Mfr. Part No. CPC1035NTR Mouser Part No 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	9,043In Stock	Cut Tape $4.54 $4.05 $3.84 $3.69 View Reel $2.76 $3.56 $3.40 $3.29 $3.17 $2.76 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1035N IXYS Integrated Circuits 1: $4.76 27,869In Stock End of Life	Mfr. Part No. CPC1035N Mouser Part No 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	27,869In Stock	$4.76 $3.81 $3.56 $3.21 View $3.13 $3.02 $2.92 $2.87 $2.86	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110STR IXYS Integrated Circuits 1: $11.94 10,858In Stock End of Life	Mfr. Part No. LAA110STR Mouser Part No 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	10,858In Stock	Cut Tape $11.94 $10.64 $10.16 $9.82 Reel $6.96 View $9.48 $8.98 $8.66 $6.95 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA132 IXYS Integrated Circuits 1: $21.71 269In Stock	Mfr. Part No. PAA132 Mouser Part No 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	$21.71 $19.34 $18.47 $15.75 $15.06	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132STR IXYS Integrated Circuits 1: $21.86 1,188In Stock	Mfr. Part No. PAA132STR Mouser Part No 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 $21.86 $19.43 $18.46 $17.49 View Reel $13.98 $16.51 $15.50 $14.97 $13.98 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA712 IXYS Integrated Circuits 1: $15.10 848In Stock	Mfr. Part No. LCA712 Mouser Part No 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	$15.10 $13.45 $12.85 $11.02 $10.47	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110STR IXYS Integrated Circuits 1: $17.83 1,400In Stock	Mfr. Part No. PAA110STR Mouser Part No 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 $17.83 $15.90 $15.18 $14.66 View Reel $12.24 $14.06 $13.37 $12.91 $12.24 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110S IXYS Integrated Circuits 1: $18.67 241In Stock	Mfr. Part No. PAA110S Mouser Part No 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	241In Stock	$18.67 $16.63 $16.05 $12.88 Quote Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132S IXYS Integrated Circuits 1: $21.71 1,240In Stock	Mfr. Part No. PAA132S Mouser Part No 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	$21.71 $19.34 $18.47 $16.08 View $15.56 $14.65	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount 250V, 1-Form-A SSR CPC1010N IXYS Integrated Circuits 1: $5.56 3,837In Stock End of Life	Mfr. Part No. CPC1010N Mouser Part No 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	$5.56 $4.96 $4.73 $4.54 View $4.37 $4.16 $3.69 $3.59	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1986J IXYS Integrated Circuits 1: $50.32 160In Stock End of Life	Mfr. Part No. CPC1986J Mouser Part No 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	$50.32 $45.07 $45.02 $42.76 $37.26	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount SPST i4-PAC 60V CPC1908J IXYS Integrated Circuits 1: $28.63 200In Stock End of Life	Mfr. Part No. CPC1908J Mouser Part No 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	$28.63 $25.51 $24.37 $23.53 View $20.66 $20.35 Quote	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount SPST 1 Form A LAA127 IXYS Integrated Circuits 1: $14.39 611In Stock End of Life	Mfr. Part No. LAA127 Mouser Part No 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	$14.39 $13.12 $12.61 $12.19 View $11.70 $11.32 $10.74	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1777J IXYS Integrated Circuits 1: $28.40 186In Stock End of Life	Mfr. Part No. CPC1777J Mouser Part No 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	$28.40 $25.30 $21.99 $21.27 View $20.90 $20.71 Quote	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP LAA110S IXYS Integrated Circuits 1: $11.18 1,865In Stock 100Expected 5/4/2027 End of Life	Mfr. Part No. LAA110S Mouser Part No 849-LAA110S End of Life	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	1,865In Stock 100Expected 5/4/2027	$11.18 $10.42 $9.76 $9.42 View $9.14 $8.81	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GSTR IXYS Integrated Circuits 1: $3.81 3,553In Stock End of Life	Mfr. Part No. CPC1972GSTR Mouser Part No 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 $3.81 $3.13 $2.88 $2.64 Reel $2.37 View $2.33 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM CPC1593GS IXYS Integrated Circuits 1: $8.87 978In Stock End of Life	Mfr. Part No. CPC1593GS Mouser Part No 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	$8.87 $7.90 $7.55 $6.62 View $6.36 $6.12 $5.92 $5.82	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143S IXYS Integrated Circuits 1: $8.85 244In Stock	Mfr. Part No. PLA143S Mouser Part No 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	$8.85 $8.26 $7.72 $7.44 View $7.15 $6.91 $6.77 $6.68 Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA PLA150S IXYS Integrated Circuits 1: $11.91 137In Stock	Mfr. Part No. PLA150S Mouser Part No 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	$11.91 $10.62 $10.15 $8.35 View $7.63 $7.51 Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET

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