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: 167
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 1-Form-A 600V 6-Pin DIP
499Expected 07/12/2026
Rp119.615,92
Rp106.590,26
Rp101.820,30
Rp98.151,10
Min.: 1
Mult.: 1
Tube PCB Mount 120 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) CPC1593
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM T/R
1.742Expected 04/03/2027
Cut Tape
Rp114.295,58
Rp101.820,30
Rp97.233,80
Rp93.931,52
Reel
Rp81.823,16
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 120 mA 600 VDC 1 Form A (SPST-NO) SMD DIP-6 MOSFET - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) CPC1593
IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC
100Expected 20/12/2027
Rp505.248,84
Rp455.714,64
Rp433.332,52
Rp414.986,52
Min.: 1
Mult.: 1
Tube PCB Mount 1.65 A 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC i4-PAC MOSFET 100 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 26.162 mm (1.03 in) CPC1779
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 4PIN SIP
291Expected 07/12/2026
Rp241.249,90
Rp214.648,20
Rp200.338,32
Rp195.384,90
Min.: 1
Mult.: 1
Tube PCB Mount 2 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC ISOPLUS264 MOSFET 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1906
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual Power Relay 60V, 1-Form-A
785On Order
Rp384.348,70
Rp341.969,44
Rp314.083,52
Rp303.442,84
Rp292.985,62
Min.: 1
Mult.: 1
Tube PCB Mount 2 A 60 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SOIC-8 MOSFET 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 10.16 mm (0.4 in) 3.302 mm (0.13 in) CPC2907B
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA
2.000Expected 13/01/2027
Cut Tape
Rp80.172,02
Rp73.200,54
Rp67.513,28
Rp64.761,38
Reel
Rp55.588,38
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) LCA110
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay
326Expected 13/01/2027
Rp69.347,88
Rp64.944,84
Rp57.789,90
Rp54.854,54
Min.: 1
Mult.: 1
Tube PCB Mount 120 mA 400 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) CPC1225
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V Single Pole SIP Power Relay
188Expected 23/11/2026
Rp207.309,80
Rp189.697,64
Rp170.801,26
Rp163.829,78
Min.: 1
Mult.: 1
Tube PCB Mount 700 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.56 VDC ISOPLUS264 MOSFET 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1926
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA
249Expected 30/06/2027
Rp85.492,36
Rp80.172,02
Rp71.182,48
Rp64.944,84
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) LCA110
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA
95Expected 05/07/2027
Rp113.928,66
Rp113.194,82
Rp100.719,54
Rp95.399,20
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) LCA120
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA
249Expected 09/06/2027
Rp99.068,40
Rp89.345,02
Rp82.557,00
Rp78.337,42
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) LCA182
IXYS Integrated Circuits Solid State Relays - PCB Mount DUAL POLE CIRCUITS Non-Stocked
Rp135.393,48
Rp126.954,32
Rp112.827,90
Rp107.140,64
Min.: 1
Mult.: 1
Tube PCB Mount 200 mA 280 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 4.064 mm (0.16 in) PAA127
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual Single-Pole 1-Form-A, 280V,200mA Non-Stocked
Reel
Rp84.941,98
Min.: 1.000
Mult.: 1.000
: 1.000
Reel 200 mA 280 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC PAA127
IXYS Integrated Circuits Solid State Relays - PCB Mount SP Open Relay 6-Pin Surface Mount Non-Stocked
Reel
Rp45.681,54
Min.: 1.000
Mult.: 1.000
: 1.000
Reel PCB Mount 150 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 5 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 1-Form-A 60V 150 mA Solid State Relay Non-Stocked
Reel
Rp34.123,56
Rp31.555,12
Min.: 1.000
Mult.: 1.000
: 1.000
Reel 150 mA 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC MOSFET XAA117
IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY, SS ICS Non-Stocked Lead-Time 23 Weeks
Rp213.363,98
Rp199.971,40
Rp177.772,74
Rp168.966,66
Min.: 1
Mult.: 1
Tube PCB Mount 450 mA 230 VDC 1 Form A (SPST-NO) SIP-4 MOSFET - 40 C + 85 C CPC1511
IXYS Integrated Circuits Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay Non-Stocked Lead-Time 34 Weeks
Rp107.507,56
Rp95.766,12
Rp91.546,54
Rp88.244,26
Min.: 1
Mult.: 1
Tube 120 mA 350 VDC 1 Form A (SPST-NO) CPC1540
IXYS Integrated Circuits Solid State Relays - PCB Mount 60V, 1A, Single Pole, Normally Open Current Limiting Relay Non-Stocked Lead-Time 36 Weeks
Rp198.870,64
Rp177.222,36
Rp169.150,12
Rp163.279,40
Min.: 1
Mult.: 1
Tube PCB Mount 1 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SOIC-16 MOSFET 20 mA - 40 C + 85 C 10.211 mm (0.402 in) 7.493 mm (0.295 in) 2.337 mm (0.092 in) CPC1561B
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch Non-Stocked Lead-Time 23 Weeks
Rp85.492,36
Rp79.988,56
Rp71.182,48
Rp67.513,28
Min.: 1
Mult.: 1
Tube CPC1961
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch Non-Stocked Lead-Time 23 Weeks
Rp85.492,36
Rp79.988,56
Rp71.182,48
Rp67.513,28
Min.: 1
Mult.: 1
Tube CPC1961
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch Non-Stocked Lead-Time 47 Weeks
Rp233.728,04
Rp208.043,64
Rp198.320,26
Rp189.514,18
Min.: 1
Mult.: 1
Tube PCB Mount 500 mA 20 VAC to 260 VAC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SCR 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 3.302 mm (0.13 in) 6.35 mm (0.25 in) CPC1963
IXYS Integrated Circuits Solid State Relays - PCB Mount AC Switch w/ Dual Power Outputs Non-Stocked Lead-Time 23 Weeks
Tube PCB Mount 1.5 A 20 VAC to 280 VAC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SCR 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1964B
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole Non-Stocked Lead-Time 36 Weeks
Rp194.651,06
Rp182.359,24
Rp162.178,64
Rp153.922,94
Min.: 1
Mult.: 1
Tube PCB Mount 120 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) LAA100
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole Non-Stocked Lead-Time 36 Weeks
Rp188.780,34
Rp172.635,86
Rp158.876,36
Rp151.904,88
Min.: 1
Mult.: 1
Tube PCB Mount 120 mA 350 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) LAA100
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole Non-Stocked Lead-Time 36 Weeks
Cut Tape
Rp179.974,26
Rp174.103,54
Rp172.268,94
Reel
Rp121.817,44
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 120 mA 350 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) LAA100