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

4425 Products showing for Surge Protection Components

1 of 222
In Stock
TDK, Standard Metal Oxide Varistor 1.55 nF 100 A, Clamping 395 V, Varistor 240 V
  • RS Stock No. 289-7272
  • Mfr. Part No. B72220S0151K101
Subtotal (1 pack of 5 units)
Kr. 39,12(exc. VAT)
Kr. 7,824/unit
In Stock
Vishay Thermistor, NTC Type 10 kΩ 8 mm 38 mm 2.4 mm
  • RS Stock No. 819-9186
  • Mfr. Part No. NTCLE300E3103SB
Subtotal (1 unit)
Kr. 15,79(exc. VAT)
Kr. 15,79/unit
In Stock
TDK, Standard Metal Oxide Varistor 11.1 nF 20 A, Clamping 77 V, Varistor 39 V
  • RS Stock No. 289-7575
  • Mfr. Part No. B72220S0250K101
Subtotal (1 pack of 5 units)
Kr. 31,46(exc. VAT)
Kr. 6,292/unit
In Stock
TDK, Standard Metal Oxide Varistor 430 pF 25 A, Clamping 395 V, Varistor 240 V
  • RS Stock No. 289-7036
  • Mfr. Part No. B72210S0151K101
Subtotal (1 pack of 5 units)
Kr. 45,87(exc. VAT)
Kr. 9,174/unit
In Stock
Littelfuse, LA Varistor Metal Oxide Varistor 140 pF 25 A, Clamping 2700 V, Varistor 748 V
  • RS Stock No. 543-5221
  • Mfr. Part No. V420LA10P
Subtotal (1 pack of 5 units)
Kr. 29,82(exc. VAT)
Kr. 5,964/unit
In Stock
Bourns, ZV Varistor 740 pF 1 A, Clamping 44 V, Varistor 27 V, 1206
  • RS Stock No. 211-1114P
  • Mfr. Part No. ZV17K1206201NIR1
Subtotal 25 units (supplied on a continuous strip)
Kr. 41,65(exc. VAT)
Kr. 1,666/unit
Last RS stock
TDK Thermistor, NTC Type 2 Ω 21 mm 21 mm 7 mm
  • RS Stock No. 211-8018
  • Mfr. Part No. B57364S0209M000
Subtotal (1 unit)
Kr. 31,35(exc. VAT)
Kr. 31,35/unit
In Stock
BC Components Thermistor, NTC Type 22 kΩ 3.75 mm 24 mm 3 mm
  • RS Stock No. 538-0840
  • Mfr. Part No. NTCLE100E3223JB0
Subtotal (1 pack of 5 units)
Kr. 27,68(exc. VAT)
Kr. 5,536/unit
In Stock
TDK NTC Thermistor, NTC Type 10 kΩ 3.5 mm 36 mm 3.5 mm
  • RS Stock No. 146-0344
  • Mfr. Part No. B57891M0103K000
Subtotal (1 pack of 10 units)
Kr. 65,67(exc. VAT)
Kr. 6,567/unit
In Stock
TDK, AdvancedD Metal Oxide Varistor 200 pF 25 A, Clamping 775 V, Varistor 470 V
  • RS Stock No. 241-6754
  • Mfr. Part No. B72210S2301K101
Subtotal (1 pack of 5 units)
Kr. 19,10(exc. VAT)
Kr. 3,82/unit
In Stock
TDK, Standard Metal Oxide Varistor 620 pF 1 A, Clamping 110 V, Varistor 56 V
  • RS Stock No. 289-7446
  • Mfr. Part No. B72205S0350K101
Subtotal (1 pack of 5 units)
Kr. 14,41(exc. VAT)
Kr. 2,882/unit
In Stock
Bourns, GMOV Varistor 4 pF 10000 A, Clamping 875 V, Varistor 320 Vrms, 415 V dc, Disc
  • RS Stock No. 186-2104
  • Mfr. Part No. GMOV-20D321K
Subtotal (1 pack of 5 units)
Kr. 101,59(exc. VAT)
Kr. 20,318/unit
Last RS stock
TDK Thermistor, NTC Type 2.2 kΩ 2 mm 3 mm 5 mm
  • RS Stock No. 191-2241
  • Mfr. Part No. B57164K0222J000
Subtotal (1 pack of 5 units)
Kr. 31,46(exc. VAT)
Kr. 6,292/unit
In Stock
TDK, Standard Metal Oxide Varistor 3.65 nF 5 A, Clamping 2970 V, Varistor 33 V
  • RS Stock No. 204-1873
  • Mfr. Part No. B72210S0200K101
Subtotal (1 pack of 5 units)
Kr. 45,87(exc. VAT)
Kr. 9,174/unit
In Stock
Panasonic, V Surge Absorber 700 pF 50 A, Varistor 240 V
  • RS Stock No. 720-9958P
  • Mfr. Part No. ERZV14D241
Subtotal 5 units (supplied in a bag)
Kr. 20,02(exc. VAT)
Kr. 4,004/unit
In Stock
Dehn, DG Modular Surge Protector 350 V dc, 275V ac Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 768-1779
  • Mfr. Part No. DG S 275
Subtotal (1 unit)
Kr. 1 594,74(exc. VAT)
Kr. 1 594,74/unit
Stocked by manufacturer
MOXA, ISD Surge Protector 10 kA Maximum Surge Current Data Line Protector
  • RS Stock No. 256-3732
  • Mfr. Part No. ISD-1210-T
Subtotal (1 unit)
Kr. 2 982,18(exc. VAT)
Kr. 2 982,18/unit
In Stock
Dehn, DG Modular Surge Protector 350 V dc, 275V ac Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 768-1760
  • Mfr. Part No. DG S 275 FM
Subtotal (1 unit)
Kr. 2 650,19(exc. VAT)
Kr. 2 650,19/unit
Temporarily out of stock
Weidmüller, VSPC Surge Protection Device 500V Maximum Voltage Rating 20 kA Maximum Surge Current
  • RS Stock No. 902-8076
  • Mfr. Part No. 8951810000
Subtotal (1 unit)
Kr. 570,74(exc. VAT)
Kr. 570,74/unit
Temporarily out of stock
TDK Thermistor, NTC Type 5 Ω, Leaded and Coated Disks 23 mm 16 mm 7 mm
  • RS Stock No. 185-7773
  • Mfr. Part No. B57238S0509M000
Subtotal (1 pack of 5 units)
Kr. 48,28(exc. VAT)
Kr. 9,656/unit
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