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

4419 Products showing for Surge Protection Components

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1 of 221
In Stock
RS PRO Thermistor, NTC Type 10 kΩ 63.5 mm 63.5 mm 2.4 mm
  • RS Stock No. 151-237
Subtotal (1 unit)
$11.42(exc. GST)
$11.42/unit
In Stock
RS PRO Metal Oxide Varistor 1.94 nF, Clamping 1200 V, Varistor 710 V
  • RS Stock No. 240-157
Subtotal (1 unit)
$66.16(exc. GST)
$66.16/unit
In Stock
RS PRO RC Network Capacitor 500V Maximum Voltage Rating Mains Protector
  • RS Stock No. 240-393
Subtotal (1 unit)
$23.60(exc. GST)
$23.60/unit
Last RS stock
TDK, EHV 90 V dc 20 kA, Through Hole 2 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 191-1535
  • Mfr. Part No. B88069X1380S102
Subtotal (1 unit)
$3.05(exc. GST)
$3.05/unit
In Stock
TDK, AdvancedD Metal Oxide Varistor 1.85 nF 100 A, Clamping 340 V, Varistor 205 V
  • RS Stock No. 241-6775
  • Mfr. Part No. B72220S2131K101
Subtotal (1 unit)
$1.54(exc. GST)
$1.54/unit
In Stock
RS PRO Thermistor, NTC Type 100 kΩ 63.5 mm 63.5 mm 2.4 mm
  • RS Stock No. 151-243
Subtotal (1 unit)
$5.96(exc. GST)
$5.96/unit
In Stock
Littelfuse, LA Metal Oxide Varistor 450 pF 50 A, Clamping 2700 V, Varistor 430 V, Disc
  • RS Stock No. 800-7068
  • Mfr. Part No. V275LA20AP
Subtotal (10 units, in packs of 10)
$9.06(exc. GST)
$0.906/unit
In Stock
TDK Thermistor, NTC Type 10 Ω 16 mm 11.5 mm 6 mm
  • RS Stock No. 211-7958P
  • Mfr. Part No. B57236S0100M000
Subtotal (1 unit, supplied in a bag)
$1.90(exc. GST)
$1.90/unit
In Stock
TDK, EHV 90 V dc 5 kA, Through Hole 2 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 320-8926
  • Mfr. Part No. B88069X0720S102
Subtotal (1 unit)
$2.16(exc. GST)
$2.16/unit
In Stock
Panasonic, V Surge Absorber 1.7 nF 25 A, Clamping 165 V, Varistor 100 V
  • RS Stock No. 720-9872
  • Mfr. Part No. ERZV10D101
Subtotal (10 units, in packs of 10)
$3.40(exc. GST)
$0.34/unit
In Stock
TDK, Standard Metal Oxide Varistor 870 pF 25 A, Clamping 165 V, Varistor 100 V
  • RS Stock No. 289-7008
  • Mfr. Part No. B72210S0600K101
Subtotal (5 units, in packs of 5)
$2.64(exc. GST)
$0.528/unit
In Stock
Eaton, SLP Surge Suppressor Unit 32V Maximum Voltage Rating 20 kA Maximum Surge Current Surge Protection Device
  • RS Stock No. 618-9777
  • Mfr. Part No. SLP32D/RS
Subtotal (1 unit)
$579.68(exc. GST)
$579.68/unit
In Stock
Vishay Thermistor, NTC Type 10 kΩ 8 mm 38 mm 2.4 mm
  • RS Stock No. 819-9177
  • Mfr. Part No. NTCLE300E3502SB
Subtotal (1 unit)
$1.91(exc. GST)
$1.91/unit
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)
$2.07(exc. GST)
$2.07/unit
In Stock
RS PRO Metal Oxide Varistor 1.62 nF, Clamping 1200 V, Varistor 710 V
  • RS Stock No. 240-208
Subtotal (1 unit)
$86.88(exc. GST)
$86.88/unit
In Stock
Panasonic, E-S1 Surge Absorber 1 nF 100 A, Clamping 1815 V, Varistor 270 V
  • RS Stock No. 187-8325
  • Mfr. Part No. ERZE14A271SC
Subtotal (10 units, in packs of 10)
$19.80(exc. GST)
$1.98/unit
In Stock
RS PRO RC Network Capacitor 500V Maximum Voltage Rating 3 Phase
  • RS Stock No. 240-400
Subtotal (1 unit)
$39.38(exc. GST)
$39.38/unit
In Stock
Schneider Electric, EZ9L Surge Suppressor Unit 230V Maximum Voltage Rating 20 kA Maximum Surge Current Surge Arrester
  • RS Stock No. 207-219
  • Mfr. Part No. EZ9L33620
Subtotal (1 unit)
$149.95(exc. GST)
$149.95/unit
In Stock
Bourns, 1210 Surge Arrester 415V ac Maximum Voltage Rating 100 kA Maximum Surge Current 1 Pole Protector
  • RS Stock No. 785-8099
  • Mfr. Part No. 1210-1S-230
Subtotal (1 unit)
$189.53(exc. GST)
$189.53/unit
In Stock
Panasonic, V Surge Absorber 3.8 nF 2.5 A, Clamping 40 V, Varistor 18 V
  • RS Stock No. 720-9793
  • Mfr. Part No. ERZV07D180
Subtotal (10 units, in packs of 10)
$3.10(exc. GST)
$0.31/unit
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