Solid State Relays - PCB Mount

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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 (DKK) Filter the results in the table by unit price based on your quantity.	Qty.	Packaging	Mounting Style	Load Current Rating	Load Voltage Rating	Relay Contact Form	Control Voltage Range	Package/Case	Output Type	Input Current	Minimum Operating Temperature	Maximum Operating Temperature	Length	Width	Height	Series
Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole LAA120L IXYS Integrated Circuits 1: 68,11 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA120L Mouser Part No 849-LAA120L End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	68,11 kr. 63,86 kr. 56,77 kr. 53,86 kr. 49,01 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	170 mA	250 VDC	2 Form A (DPST-NO)	900 mVDC to 1.4 VDC	DIP-8	MOSFET	50 mA	- 40 C	+ 85 C				LAA120
Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole LAA120LS IXYS Integrated Circuits 1: 68,11 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA120LS Mouser Part No 849-LAA120LS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	68,11 kr. 63,86 kr. 56,77 kr. 53,86 kr. 49,01 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	170 mA	250 VDC	2 Form A (DPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-8	MOSFET	50 mA			9.652 mm (0.38 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LAA120
Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole LAA125L IXYS Integrated Circuits 1: 62,37 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA125L Mouser Part No 849-LAA125L 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	Non-Stocked Lead-Time 36 Weeks	62,37 kr. 55,65 kr. 53,12 kr. 51,18 kr. View 49,46 kr. 46,40 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	170 mA	350 VDC	2 Form A (DPST-NO)	900 mVDC to 1.4 VDC	DIP-8	MOSFET	50 mA	- 40 C	+ 85 C	9.652 mm (0.38 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LAA125
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127L IXYS Integrated Circuits 1: 77,66 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA127L Mouser Part No 849-LAA127L 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	Non-Stocked Lead-Time 36 Weeks	77,66 kr. 69,23 kr. 66,10 kr. 63,78 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	200 mA	250 VDC	2 Form A (DPST-NO)	900 mVDC to 1.4 VDC	DIP-8	MOSFET	50 mA	- 40 C	+ 85 C	9.652 mm (0.38 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LAA127
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127LSTR IXYS Integrated Circuits 1: 76,76 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA127LSTR Mouser Part No 849-LAA127LSTR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape 76,76 kr. 68,26 kr. 64,83 kr. 61,47 kr. View Reel 52,00 kr. 58,49 kr. 55,80 kr. 53,94 kr. 52,00 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	PCB Mount	200 mA	250 VDC	2 Form A (DPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-8	MOSFET	50 mA			9.652 mm (0.38 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LAA127
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA100 IXYS Integrated Circuits 1: 40,58 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA100 Mouser Part No 849-LCA100 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	Non-Stocked Lead-Time 36 Weeks	40,58 kr. 38,05 kr. 33,79 kr. 32,08 kr. View 30,44 kr. 28,87 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	120 mA	350 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	DIP-6	MOSFET	50 mA						LCA100
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA100LS IXYS Integrated Circuits 1: 39,84 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA100LS Mouser Part No 849-LCA100LS 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	Non-Stocked Lead-Time 36 Weeks	39,84 kr. 35,51 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	120 mA	350 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-6	MOSFET	50 mA	- 40 C	+ 85 C	8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA100
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA100LSTR IXYS Integrated Circuits 1: 40,21 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA100LSTR Mouser Part No 849-LCA100LSTR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape 40,21 kr. 37,75 kr. 33,50 kr. 31,85 kr. View Reel 26,63 kr. 30,14 kr. 28,65 kr. 27,68 kr. 26,63 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	PCB Mount	120 mA	350 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-6	MOSFET	100 mA			8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA100
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA100STR IXYS Integrated Circuits 1: 37,75 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA100STR Mouser Part No 849-LCA100STR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape 37,75 kr. 36,78 kr. 36,70 kr. Reel 25,96 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	PCB Mount	120 mA	350 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-6	MOSFET	50 mA	- 40 C	+ 85 C	8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA100
Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA LCA120LSTR IXYS Integrated Circuits 1: 41,03 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA120LSTR Mouser Part No 849-LCA120LSTR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape 41,03 kr. 36,55 kr. 34,61 kr. 33,12 kr. View Reel 27,38 kr. 31,71 kr. 30,14 kr. 29,09 kr. 27,38 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	PCB Mount	170 mA	250 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-6	MOSFET	50 mA	- 40 C	+ 85 C	8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA120
Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA LCA125L IXYS Integrated Circuits 1: 50,13 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA125L Mouser Part No 849-LCA125L End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	50,13 kr. 47,00 kr. 41,78 kr. 39,61 kr. View 37,60 kr. 35,29 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	170 mA	300 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	DIP-6	MOSFET	50 mA	- 40 C	+ 85 C	8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA125
Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A,300V,170mA LCA125LS IXYS Integrated Circuits 1: 50,21 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA125LS Mouser Part No 849-LCA125LS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A,300V,170mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	50,21 kr. 47,00 kr. 41,85 kr. 39,61 kr. 36,85 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	170 mA	300 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-6					8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA125
Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA LCA125S IXYS Integrated Circuits 1: 49,31 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA125S Mouser Part No 849-LCA125S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	49,31 kr. 46,25 kr. 41,10 kr. 39,09 kr. View 37,00 kr. 34,69 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	170 mA	300 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-6	MOSFET	50 mA			8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA125
Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA LCA127L IXYS Integrated Circuits 1: 50,58 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA127L Mouser Part No 849-LCA127L End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	50,58 kr. 47,37 kr. 42,07 kr. 39,99 kr. View 37,82 kr. 35,36 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	200 mA	250 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	DIP-6	MOSFET	50 mA						LCA127
Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA LCA129 IXYS Integrated Circuits 1: 37,00 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA129 Mouser Part No 849-LCA129 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	Non-Stocked Lead-Time 36 Weeks	37,00 kr. 34,61 kr. 30,81 kr. 29,24 kr. View 27,75 kr. 26,41 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	170 mA	250 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	DIP-6	MOSFET	50 mA	- 40 C	+ 85 C	8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA129
Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA LCA129S IXYS Integrated Circuits 1: 34,91 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA129S Mouser Part No 849-LCA129S 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	Non-Stocked Lead-Time 36 Weeks	34,91 kr. 33,20 kr. 31,48 kr. 29,17 kr. 27,98 kr.	Min.: 1 Mult.: 1	Tube	PCB Mount	170 mA	250 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-6	MOSFET	50 mA			8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA129
Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA LCA129STR IXYS Integrated Circuits 1: 36,03 kr. Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA129STR Mouser Part No 849-LCA129STR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape 36,03 kr. 33,79 kr. 29,99 kr. 28,57 kr. View Reel 22,68 kr. 27,08 kr. 25,81 kr. 24,92 kr. 22,68 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	PCB Mount	170 mA	250 VDC	1 Form A (SPST-NO)	900 mVDC to 1.4 VDC	SMD DIP-6	MOSFET	50 mA			8.382 mm (0.33 in)	6.35 mm (0.25 in)	3.302 mm (0.13 in)	LCA129