Surge Protection Components

It is important to protect any electrical equipment or circuitry you have from the harmful effects of power surges, so choose from our range of protective devices and components today. We’re able to offer you a wide variety of quality products from leading manufacturers including Bourns, Huber & Suhner, ON Semiconductor and Siemens.

How does surge protection work?

Power surges are a sudden increase in the electrical current being routed into power outlets. If a power surge happens, irreparable damage to equipment can be caused.

Surge protection is an essential and effective way of preventing this damage from occurring and can take many forms, from specialist plug sockets that absorb the additional voltage to components that can be used in the equipment itself.

What causes a power surge?

Power surges happen when the flow of electricity is briefly interrupted and started again. They can occur when equipment starts up or shut off. Classic examples of this would be air conditioning units, refrigeration equipment or motor-driven devices.

Power surges can also happen naturally, like a lightning strike or power lines coming down in a storm. They can also happen after mains power cuts when the power returns.

What is the difference between a surge and a spike?

  • If overvoltage increases for three nanoseconds or more this is called a surge.
  • If overvoltage increases for one or two nanoseconds this is called a spike.

What types of surge protection components are there?

Gas discharge tubes- a glass tube which is sealed at both ends, contains two electrodes and is filled with a gas that conducts electricity when a high voltage is applied. This type of component can be used to protect sensitive circuits.

Surge suppressor units - a common type of component, a surge suppressor unit can be built into a device, such as a power strip, or used as a standalone component.

Switching spark gap - these are used to switch between circuits quickly and are often used in the building and automotive industries.

Gas Discharge Tubes
Gas Discharge Tubes
Surge Suppressor Units
Surge Suppressor Units
Switching Spark Gaps
Switching Spark Gaps
Thermistor ICs
Thermistor ICs
Varistors
Varistors

4484 Products showing for Surge Protection Components

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In Stock
TDK Thermistor, NTC Type 10 kΩ 6.5 mm 2.41 mm
  • RS stock no. 528-8536
  • Mfr. Part No. B57861S0103J040
Subtotal (1 unit)
R 22,68(exc. VAT)
R 22,68/unit
In Stock
Bourns, GMOV Varistor 4 pF 6 kA, Varistor 275 V ac, 350 V dc, Disc
  • RS stock no. 186-2134
  • Mfr. Part No. GMOV-14D271K
Subtotal (1 pack of 5 units)
R 139,62(exc. VAT)
R 27,924/unit
In Stock
Bourns, MOV-14D Metal Oxide Varistor 460 pF 50 A, Clamping 2.97 kV, Varistor 430 V, Molded Radial
  • RS stock no. 851-8322
  • Mfr. Part No. MOV-14D431K
Subtotal (1 unit)
R 8,61(exc. VAT)
R 8,61/unit
Last RS stock
KYOCERA AVX Thermistor, NTC Type 100 kΩ 2.8 mm
  • RS stock no. 697-4590P
  • Mfr. Part No. NJ28RA0104HCC
Subtotal 1 unit (supplied as a tape)
R 5,39(exc. VAT)
R 5,39/unit
Last RS stock
KYOCERA AVX Thermistor, NTC Type 20 kΩ 2.8 mm
  • RS stock no. 697-4581P
  • Mfr. Part No. NJ28PA0203FCC
Subtotal 1 unit (supplied as a tape)
R 38,87(exc. VAT)
R 38,87/unit
In Stock
TE Connectivity Thermistor, NTC Type 10 kΩ 76 mm 2.4 mm
  • RS stock no. 893-7159
  • Mfr. Part No. GA10K3A1IA
Subtotal (1 unit)
R 121,76(exc. VAT)
R 121,76/unit
In Stock
TDK Thermistor, NTC Type 3 Ω 23 mm 16 mm 7 mm
  • RS stock no. 185-7769
  • Mfr. Part No. B57238S0309M000
Subtotal (1 pack of 5 units)
R 64,04(exc. VAT)
R 12,808/unit
In Stock
Littelfuse, CG2 300 V dc 500 A, Axial 2 Electrode Gas Discharge Tube Gas Discharge Tube
  • RS stock no. 878-3649
  • Mfr. Part No. CG2-300L
Subtotal (1 pack of 10 units)
R 429,32(exc. VAT)
R 42,932/unit
In Stock
Molex NTC Thermistor, NTC Type 10 kΩ 100 mm
  • RS stock no. 230-2064
  • Mfr. Part No. 215270-3607
Subtotal (1 pack of 5 units)
R 203,26(exc. VAT)
R 40,652/unit
In Stock
Telegartner, J01028A Surge Suppressor Unit 90V Maximum Voltage Rating Type N Arrester
  • RS stock no. 712-3147
  • Mfr. Part No. J01028A0034
Subtotal (1 unit)
R 2 536,69(exc. VAT)
R 2 536,69/unit
In Stock
Omron, J74KN Surge Suppressor Unit 230V ac Maximum Voltage Rating RC Suppressor Unit
  • RS stock no. 215-5177
  • Mfr. Part No. J74KN-C2-RC230
Subtotal (1 unit)
R 372,16(exc. VAT)
R 372,16/unit
In Stock
Littelfuse, MLA Varistor Varistor 500 pF 1 A, Clamping 260 V, 1206
  • RS stock no. 760-6986
  • Mfr. Part No. V33MLA1206NH
Subtotal (1 pack of 5 units)
R 90,15(exc. VAT)
R 18,03/unit
Unavailable
RS PRO Metal Oxide Varistor 2.57nF, Clamping 395V, Varistor 240V
  • RS stock no. 901-2718
Subtotal (1 unit)
R 83,09(exc. VAT)
R 83,09/unit
In Stock
Amphenol Advanced Sensors NTC Thermistor, NTC Type 120 Ω
  • RS stock no. 257-9509P
  • Mfr. Part No. CL-90
Subtotal 2 units (supplied in a bag)
R 91,98(exc. VAT)
R 45,99/unit
In Stock
Eaton, SD32 Surge Protection Device 32V Maximum Voltage Rating 20 kA Maximum Surge Current Surge Protection Device
  • RS stock no. 144-8697
  • Mfr. Part No. SD32MXX-BCN
Subtotal (1 unit)
R 4 509,28(exc. VAT)
R 4 509,28/unit
In Stock
TDK Thermistor, Negative Temperature Coefficient Type 100 kΩ, DO-35 2.2 mm 71 mm 1.3 mm
  • RS stock no. 769-1934
  • Mfr. Part No. B57550G1104F000
Subtotal (1 pack of 5 units)
R 239,93(exc. VAT)
R 47,986/unit
In Stock
TDK, CU Varistor 5 A, Clamping 340 V
  • RS stock no. 769-1984
  • Mfr. Part No. B72650M0131K072
Subtotal (1 pack of 5 units)
R 83,60(exc. VAT)
R 16,72/unit
In Stock
TE Connectivity Thermistor, NTC Type 10 kΩ 76 mm 2.4 mm
  • RS stock no. 893-7159P
  • Mfr. Part No. GA10K3A1IA
Subtotal 1 unit (supplied in a bag)
R 121,76(exc. VAT)
R 121,76/unit
In Stock
TDK Thermistor, NTC Type 16 Ω 16 mm 11.5 mm 6 mm
  • RS stock no. 211-7964
  • Mfr. Part No. B57236S0160M000
Subtotal (1 unit)
R 17,47(exc. VAT)
R 17,47/unit
In Stock
Bourns, BVRA0805 Varistor 1 A, Clamping 30 V
  • RS stock no. 854-219
  • Mfr. Part No. BVRA0805-06PFR
Subtotal (1 tape of 50 units)
R 160,50(exc. VAT)
R 3,21/unit
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