Solid State Relays

The main advantages of solid state relays over conventional electro-mechanical relays is that they have no moving parts to wear out, and therefore no contact bounce issues. SSRs are able to switch both “ON” and “OFF” much faster than a mechanical relays armature can move, as well as zero voltage turn-on and zero current turn-off eliminating electrical noise and transients.
Solid state relays are available in a range of package options, ranging from just a few volts or amperes to many hundreds of volts and amperes of output switching capability. A small input voltage, typically 3 to 32 volts DC, can be used to control a much large output voltage or current.

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Description Price Minimum Load Current Maximum Load Current Range Mounting Type Series Minimum Load Voltage Maximum Load Voltage Minimum Control Voltage Maximum Control Voltage Switching Type Contact Configuration Terminal Type Output Device Package Style
RS Stock No. 491-4868
Mfr. Part No.CWD2450
$94.90
Each
units
0.15 A 50 A rms - Panel Mount - - 280 V rms - 32 V Zero Cross - - SCR -
RS Stock No. 800-2934
Mfr. Part No.77.25.9.024.8250
BrandFinder
$48.52
Each
units
120 mA 25 A - Heatsink Series 77 21.6 V ac 280 V ac - 24 V dc Zero Crossing SPNO Screw - Hockey Puck
RS Stock No. 856-8387
Mfr. Part No.RA4890-D12
$183.82
Each
units
400 mA 90 A - Panel Mount - 42 V ac 530 V ac 3 V dc 32 V dc Zero - Screw - -
RS Stock No. 917-4816
Mfr. Part No.SO942860
BrandCelduc
$56.06
Each
units
5 mA 25 A Okpac Panel Mount - 12 V ac 280 V ac 10 V dc, 15 V ac 30 V dc, 32 V ac Zero Cross - Screw Triac -
RS Stock No. 165-8139
Mfr. Part No.PVA3055NPBF
BrandInfineon
$16.391
Each (In a Tube of 50)
units
- 50 mA dc - PCB Mount - - 300 V ac/dc 0 V ac/dc 300 V ac/dc Analogue SPNO PCB Pin MOSFET DIP
RS Stock No. 173-9027
Mfr. Part No.AQW610S
BrandPanasonic
$13.701
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 666-4394
Mfr. Part No.SO465020
BrandCelduc
$280.05
Each
units
- 50 A - - - 200 V ac 480 V ac 0 V 10 V dc Phase Angle - - Thyristor -
RS Stock No. 888-6855
BrandRS PRO
$33.766
Each (In a Pack of 5)
units
5 mA 2 A - DIN Rail - 20 V 264 V 11 V 30 V AC SPNO Screw Triac -
RS Stock No. 740-6632
Mfr. Part No.EL100D5-24
$61.49
Each
units
150 mA 5 A - Panel Mount - 3 V dc 100 V dc 21 V dc 27 V dc DC SPST Quick Connect MOSFET -
RS Stock No. 189-4778
Mfr. Part No.ASSR-1228-002E
BrandBroadcom
$3.36
Each (In a Tube of 50)
units
- 0.2 A - Surface Mount ASSR-1218 -60 V 60 V - 0.8 V AC/DC, DC Only SPST 4 Pin MOSFET SO
RS Stock No. 720-4101
Mfr. Part No.DR24D12
$77.34
Each
units
0.15 A rms 12 A rms - DIN Rail - 24 V rms 280 V rms 4 V dc 32 V dc Zero Cross - Screw - -
RS Stock No. 173-9034
Mfr. Part No.AQY216EH
BrandPanasonic
$4.676
Each (In a Tube of 100)
units
0.05 A 50 mA - PCB Mount - - 600 V 1.14 V 1.5 V - SPNO Through Hole PhotoMOS DIP4
RS Stock No. 740-6629
Mfr. Part No.EL240A20-05
$50.72
Each
units
250 mA 20 A - Panel Mount EL 24 V ac 280 V ac 4 V dc 8 V dc Zero Cross SPST Quick Connect - -
RS Stock No. 775-3105
Mfr. Part No.RGS1A23D25KKE
$58.13
Each
units
150 mA 25 A - Panel Mount - 24 V ac 240 V ac 3 V dc 32 V dc Zero Crossing SPST Screw - Module
RS Stock No. 738-5525
Mfr. Part No.CMXE200D3
$59.55
Each
units
0 A 3 A - PCB Mount - 0 V dc 200 V dc 20 V dc 28 V dc DC SPST Through Hole MOSFET SIP
RS Stock No. 859-3279
Mfr. Part No.RM1A40D25
$131.49
Each
units
150 mA 25 A - Panel Mount - 42 V ac 440 V ac 4 V dc 32 V dc Zero Crossing - Screw Varistor -
RS Stock No. 127-4511
Mfr. Part No.AQW414
BrandPanasonic
$15.78
Each
units
- 0.1 A - PCB Mount - - 400 V - 1.5 V - - - MOSFET -
RS Stock No. 906-0916
Mfr. Part No.ESWITCH/40A/240V/LGC/ENG/-/MSFUSE/-/-
BrandEurotherm
$410.29
Each
units
- 40 A - DIN Rail - - 240 V 5 V dc 32 V dc DC - Screw Power Switch -
RS Stock No. 445-5224
Mfr. Part No.SLD03205
BrandCelduc
$28.86
Each
units
1 mA 4 A - PCB Mount - - 32 V - 32 V DC - - MOSFET -
RS Stock No. 736-0845
Mfr. Part No.CMRD4865-10
$205.37
Each
units
0.15 A rms 65 A - DIN Rail - 48 V rms 530 V rms 3 V dc 32 V dc Instantaneous SPST Screw SCR -