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. 121-3895
BrandRS PRO
$86.74
Each
units
- 30 A - DIN Rail - 48 Vrms 530 Vrms 4 V dc 32 V dc - SP Screw - -
RS Stock No. 102-5544
Mfr. Part No.KSIM380D10-L
Brandi-Autoc
$32.23
Each
units
- 10 A - Panel Mount - 48 V ac 440 V ac 4 V dc 32 V dc Zero Cross - Screw TRIAC -
RS Stock No. 922-5198
BrandRS PRO
$54.37
Each
units
0.1 A 10 A rms - Panel Mount - 24 V ac 280 V ac 3 V dc 32 V dc Zero Cross SPNO Screw TRIAC -
RS Stock No. 612-9034
Mfr. Part No.3RF2430-1AC45
BrandSiemens
$421.15
Each
units
0.5 A 30 A - DIN Rail - 48 V 600 V 4 V dc 30 V dc Zero Crossing 3P-NO Screw Thyristor -
RS Stock No. 922-4987
BrandRS PRO
$47.21
Each
units
0.1 A 10 A rms - Panel Mount - 24 V ac 280 V ac 3 V dc 32 V dc Zero Cross SPNO Screw Thyristor -
RS Stock No. 903-2961
Mfr. Part No.KSI240D10-L
Brandi-Autoc
$36.78
Each
units
- 10 A - Panel Mount - 48 V ac 280 V ac 4 V dc 32 V dc Zero Crossing - Screw SCR, Triac -
RS Stock No. 701-8483
Mfr. Part No.DRA1-CMXE100D6
$121.29
Each
units
0 A 6 A - DIN Rail DRA1 CMX 1 V dc 100 V dc 20 V dc 28 V dc DC - - - -
RS Stock No. 814-8181
Mfr. Part No.70S2-01-A-03-V
$45.54
Each
units
- 3 A - PCB Mount - 3 V dc 60 V dc 3 V dc 15 V dc DC SPNO PCB Pin MOSFET -
RS Stock No. 457-2868
Mfr. Part No.34.81.7.024.9024
BrandFinder
$63.83
Each
units
1 mA 6 A - PCB Mount Series 34 1.5 V dc 24 V dc 16 V 30 V DC SPNO PCB Pin - SIP4
RS Stock No. 839-9948
Mfr. Part No.ASSR-V621-302E
BrandBroadcom
$6.81
Each (In a Pack of 2)
units
- 15 μA - Surface Mount - - - 0 V 0.8 V Direct - 8 Pin MOSFET DIP
RS Stock No. 903-2980
Mfr. Part No.KSI240A60-L
Brandi-Autoc
$76.59
Each
units
- 60 A - Panel Mount - 48 V ac 280 V ac 90 V ac 280 V ac Zero Crossing - Screw SCR, Triac -
RS Stock No. 736-0882
Mfr. Part No.DC60S7-B
$100.70
Each
units
20 mA 7 A - Surface Mount - 3 V dc 60 V dc 3.5 V dc 32 V dc DC SP-NC Screw Transistor -
RS Stock No. 358-2892
Mfr. Part No.D2425PG
$90.87
Each
units
40 mA 25 A - Panel Mount 1 24 V ac 280 V rms 3 V dc 32 V Zero Cross - Screw SCR -
RS Stock No. 906-1029
Mfr. Part No.CPC1020N
BrandIXYS
$4.596
Each (In a Bag of 5)
units
- 1.2 A dc - Surface Mount - - - - - DC SPNO PCB Pin MOSFET SOP
RS Stock No. 699-6506
Mfr. Part No.AQG22124
BrandPanasonic
$14.35
Each
units
20 mA 2 A - PCB Mount - - 264 V 1.5 V dc 24 V dc Zero Crossing - PCB Pin - -
RS Stock No. 740-1312
Mfr. Part No.ED10C5
$44.90
Each
units
0.1 A 5 A - DIN Rail - 1 V dc 80 V dc 18 V dc 32 V dc DC SPST Through Hole MOSFET EMR
RS Stock No. 903-2964
Mfr. Part No.KSI240D25-L
Brandi-Autoc
$47.23
Each
units
- 25 A - Panel Mount - 48 V ac 280 V ac 4 V dc 32 V dc Zero Crossing - Screw SCR, Triac -
RS Stock No. 922-2016
Mfr. Part No.SSP3A225BDR
$573.20
Each
units
0.1 A 25 A - Panel Mount - 48 V ac 530 V ac 4 V dc 32 V dc Zero Cross 3P-NO Screw SCR -
RS Stock No. 903-2974
Mfr. Part No.KSI240A25-L
Brandi-Autoc
$53.01
Each
units
- 25 A - Panel Mount - 48 V ac 280 V ac 90 V ac 280 V ac Zero Crossing - Screw SCR, Triac -
RS Stock No. 818-4266
Mfr. Part No.LY2F220/240AC
BrandOmron
$31.36
Each
units
- 7.5 (Inductive Load) A, 10 (Resistive Load) A - Flange Mount LY - 24 V dc, 110 V ac - 220 V ac, 240 V ac AC/DC DPDT Plug In - -