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.

Results: 268
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model 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
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN SMT 53In Stock
Rp114.845,96
Rp102.370,68
Rp97.784,18
Rp94.298,44
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 - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA120
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA 1.433In Stock
2.000Expected 04/08/2027
Cut Tape
Rp110.626,38
Rp98.701,48
Rp94.298,44
Rp90.996,16
Reel
Rp77.787,04
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
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA 1.921In Stock
Rp130.990,44
Rp116.680,56
Rp111.543,68
Rp107.507,56
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 - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA127
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA 93In Stock
Rp142.181,50
Rp133.375,42
Rp118.515,16
Rp112.460,98
Min.: 1
Mult.: 1
Tube PCB Mount 200 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) LCA127
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP 150In Stock
Rp93.564,60
Rp83.474,30
Rp79.805,10
Rp75.768,98
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 - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA182
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA 3.383In Stock
Cut Tape
Rp91.363,08
Rp81.456,24
Rp77.787,04
Rp75.218,60
Reel
Rp64.211,00
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) LCA182
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP 23In Stock
10.050On Order
Rp182.726,16
Rp171.718,56
Rp153.922,94
Rp146.401,08
Min.: 1
Mult.: 1
Tube PCB Mount 1 A 60 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) LCA710
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay 201In Stock
300Expected 09/11/2026
Rp183.276,54
Rp163.279,40
Rp155.941,00
Rp150.437,20
Min.: 1
Mult.: 1
Tube PCB Mount 2 A 30 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) LCA717
IXYS Integrated Circuits Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay 72In Stock
Rp122.918,20
Rp109.525,62
Rp109.158,70
Rp103.471,44
Min.: 1
Mult.: 1
Tube PCB Mount 50 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) OMA160
IXYS Integrated Circuits Solid State Relays - PCB Mount DPST-NO/NO 6PIN DIP 91In Stock
Rp200.705,24
Rp178.873,50
Rp170.801,26
Rp164.930,54
Min.: 1
Mult.: 1
Tube PCB Mount 100 mA 600 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) PAA193
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 600V 100mA SSR 153In Stock
50Expected 07/01/2027
Rp200.705,24
Rp178.873,50
Rp170.801,26
Rp164.930,54
Min.: 1
Mult.: 1
Tube PCB Mount 100 mA 600 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SMD 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) PAA193
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA 61In Stock
Rp141.814,58
Rp126.403,94
Rp120.716,68
Rp116.497,10
Min.: 1
Mult.: 1
Tube PCB Mount 150 mA 400 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) PLA110
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP 45In Stock
250Expected 26/02/2027
Rp148.969,52
Rp139.613,06
Rp124.202,42
Rp117.964,78
Min.: 1
Mult.: 1
Tube PCB Mount 150 mA 400 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) PLA110
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA 113In Stock
Rp172.452,40
Rp153.739,48
Rp146.768,00
Rp141.631,12
Min.: 1
Mult.: 1
Tube PCB Mount 600 mA 60 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) PLA132
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA 66In Stock
Rp172.452,40
Rp153.739,48
Rp146.768,00
Rp141.631,12
Min.: 1
Mult.: 1
Tube PCB Mount 600 mA 60 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) PLA132
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA 38In Stock
100Expected 03/06/2027
Rp174.470,46
Rp155.390,62
Rp148.419,14
Rp143.282,26
Min.: 1
Mult.: 1
Tube PCB Mount 250 mA 400 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) PLA140
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA 10In Stock
400Expected 01/03/2027
Rp130.623,52
Rp119.432,46
Rp109.158,70
Rp103.471,44
Min.: 1
Mult.: 1
Tube PCB Mount 180 mA 800 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) PLA170
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA 15In Stock
1.250Expected 07/12/2026
Rp130.990,44
Rp122.734,74
Rp104.939,12
Rp101.086,46
Min.: 1
Mult.: 1
Tube PCB Mount 180 mA 800 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) PLA170
IXYS Integrated Circuits Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA 132In Stock
1.000Expected 28/06/2027
Cut Tape
Rp138.328,84
Rp126.403,94
Rp117.230,94
Rp113.194,82
Reel
Rp93.197,68
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 100 mA 800 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 2.159 mm (0.085 in) PLA171
IXYS Integrated Circuits Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay 23In Stock
Cut Tape
Rp177.772,74
Rp158.509,44
Rp151.354,50
Rp146.217,62
Reel
Rp123.285,12
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 100 mA 800 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 105 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 2.588 mm (0.102 in)
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA 24In Stock
Rp173.369,70
Rp154.656,78
Rp148.969,52
Rp145.116,86
Min.: 1
Mult.: 1
Tube PCB Mount 250 mA 400 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) PLA191
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA 34In Stock
2.000Expected 26/07/2027
Cut Tape
Rp132.091,20
Rp120.716,68
Rp112.094,06
Rp106.406,80
Reel
Rp87.693,88
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 150 mA 600 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) PLA192
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP 51In Stock
Rp117.964,78
Rp105.122,58
Rp104.388,74
Rp99.068,40
Min.: 1
Mult.: 1
Tube PCB Mount 100 mA 600 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) PLA193
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay 40In Stock
90.000On Order
Cut Tape
Rp55.588,38
Rp51.185,34
Rp47.516,14
Rp45.865,00
Reel
Rp36.692,00
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 150 mA 100 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC1008
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR 204In Stock
7.900On Order
Rp61.826,02
Rp55.221,46
Rp52.653,02
Rp50.818,42
Min.: 1
Mult.: 1
Tube PCB Mount 150 mA 100 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1009