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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 (PHP) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR PAA150S IXYS Integrated Circuits 1: ₱892.64 267In Stock	Mfr. Part # PAA150S Mouser Part # 849-PAA150S	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	267In Stock	₱892.64 ₱793.26 ₱753.99 ₱714.11 View ₱673.62 ₱658.29 ₱581.60 ₱576.69 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA PLA150 IXYS Integrated Circuits 1: ₱533.75 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	₱533.75 ₱476.08 ₱454.60 ₱438.65 View ₱423.32 ₱402.46 ₱387.12 ₱352.76 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA PLA150STR IXYS Integrated Circuits 1: ₱555.22 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 ₱555.22 ₱523.93 Reel ₱369.94 ₱327.00 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA PLA160STR IXYS Integrated Circuits 1: ₱537.43 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 ₱537.43 ₱479.14 ₱457.06 ₱438.04 View Reel ₱366.87 ₱419.02 ₱394.48 ₱380.98 ₱366.87 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single Pole 800V, 100mA SSR PLA171P IXYS Integrated Circuits 1: ₱438.65 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	₱438.65 ₱402.46 ₱387.12 ₱373.01 View ₱360.12 ₱351.54 ₱339.27 ₱327.61 ₱288.35	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay PLA172PTR IXYS Integrated Circuits 1: ₱594.48 429In 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	429In Stock	Cut Tape ₱594.48 ₱530.06 ₱506.14 ₱488.96 View Reel ₱412.27 ₱472.40 ₱448.47 ₱433.13 ₱412.27 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA PLA191S IXYS Integrated Circuits 1: ₱583.44 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	₱583.44 ₱519.63 ₱503.07 ₱476.69 View ₱442.33 ₱422.70 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA193STR IXYS Integrated Circuits 1: ₱399.39 1,719In Stock 2,000Expected 13/11/2026	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 13/11/2026	Cut Tape ₱399.39 ₱384.66 Reel ₱271.78 ₱258.90 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay IXYS Integrated Circuits CPC1965G CPC1965G IXYS Integrated Circuits 1: ₱519.63 11,365In Stock 10,775Expected 26/08/2027 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 26/08/2027	₱519.63 ₱463.19 ₱416.57 ₱401.84 View ₱387.12 ₱358.28 ₱351.54 ₱343.56 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay CPC1017NTR IXYS Integrated Circuits 1: ₱117.79 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 02/12/2026 68,000 Expected 17/06/2027 Factory Lead-Time: 30 Weeks	Cut Tape ₱117.79 ₱108.59 ₱100.00 ₱96.93 View Reel ₱83.44 ₱93.25 ₱88.34 ₱85.89 ₱83.44 ₱83.44 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay CPC1019N IXYS Integrated Circuits 1: ₱261.96 4,936In Stock 4,100Expected 02/06/2027 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	4,936In Stock 4,100Expected 02/06/2027	₱261.96 ₱236.20 ₱220.86 ₱211.04 View ₱203.07 ₱193.25 ₱187.12 ₱180.98 ₱180.37	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330G IXYS Integrated Circuits 1: ₱239.88 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	₱239.88 ₱225.15 ₱202.46 ₱171.17 View ₱160.74 ₱157.67 ₱157.06	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GR IXYS Integrated Circuits 1: ₱239.27 1,570In Stock 500Expected 13/01/2027 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 13/01/2027	₱239.27 ₱224.54 ₱199.39 ₱190.19 View ₱183.44 ₱174.85 ₱169.33 ₱163.19	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393G IXYS Integrated Circuits 1: ₱291.41 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	₱291.41 ₱260.12 ₱248.47 ₱239.88 View ₱230.06 ₱218.41 ₱213.50 ₱203.68 ₱195.09	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation CPC1394GRTR IXYS Integrated Circuits 1: ₱257.06 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 02/11/2026 3,000 Expected 30/07/2027 Factory Lead-Time: 36 Weeks	Cut Tape ₱257.06 ₱236.81 ₱228.84 ₱220.25 Reel ₱199.39 View ₱210.43 ₱205.52 ₱198.16 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540GS IXYS Integrated Circuits 1: ₱379.14 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 07/12/2026 2,000 Expected 01/03/2027 Factory Lead-Time: 54 Weeks	₱379.14 ₱355.22 ₱315.95 ₱300.00 View ₱284.05 ₱269.94 ₱260.12 ₱251.54	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1727J IXYS Integrated Circuits 1: ₱1,410.44 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	₱1,410.44 ₱1,349.70 ₱1,146.63 ₱1,003.07 Quote Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay CPC1909J IXYS Integrated Circuits 1: ₱1,288.96 479In Stock 325Expected 23/07/2027 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 23/07/2027	₱1,288.96 ₱1,185.28 ₱1,122.71 ₱1,060.74 View ₱1,022.09 ₱976.08 ₱942.34	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 400V, 1mA AC Solid State Relay CPC1945G IXYS Integrated Circuits 1: ₱585.28 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	₱585.28 ₱452.76 ₱366.26 ₱336.20 View ₱319.63 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay CPC1981Y IXYS Integrated Circuits 1: ₱504.30 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 08/02/2027 1,425 Expected 12/02/2027 Factory Lead-Time: 54 Weeks	₱504.30 ₱461.35 ₱423.93 ₱405.52 View ₱388.35 ₱338.65	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 120MA DPST 8-DIP LAA110 IXYS Integrated Circuits 1: ₱591.41 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 15/07/2027 1,050 Expected 19/07/2027 1,550 Expected 23/07/2027 Factory Lead-Time: 36 Weeks	₱591.41 ₱542.33 ₱496.94 ₱474.85 View ₱453.99 ₱427.00	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110L IXYS Integrated Circuits 1: ₱576.69 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	₱576.69 ₱514.11 ₱490.80 ₱473.62 View ₱433.13 ₱415.34 ₱402.46 ₱393.25 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole LAA125LS IXYS Integrated Circuits 1: ₱650.92 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	₱650.92 ₱609.82 ₱542.33 ₱514.73 View ₱487.73 ₱446.63 ₱431.29 ₱416.57	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127LS IXYS Integrated Circuits 1: ₱770.56 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	₱770.56 ₱684.67 ₱650.92 ₱616.57 View ₱586.51 ₱560.13 ₱541.11 ₱522.09	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127STR IXYS Integrated Circuits 1: ₱709.21 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 ₱709.21 ₱631.91 ₱603.68 ₱582.83 View Reel ₱497.55 ₱559.51 ₱533.75 ₱515.95 ₱497.55 MouseReel Available	Min.: 1 Mult.: 1 : 1,000