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

4375 Products showing for Surge Protection Components

21 of 219
In Stock
Dehn, DG Modular Surge Protector 275 V ac, 350 V dc Maximum Voltage Rating 40kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 768-1779
  • Mfr. Part No. DG S 275
Each
PHP10,012.35(exc. VAT)
In Stock
WJ Furse, ESP Cat-6 Surge Suppressor Unit 5 V Maximum Voltage Rating 1kA Maximum Surge Current Cat-6 Surge Protector
  • RS Stock No. 788-6769
  • Mfr. Part No. 7TCA085400R0023 ESP CAT-6
Each
PHP22,724.63(exc. VAT)
In Stock
Littelfuse, CG3 1800V 10kA, Axial 2 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 760-6734
  • Mfr. Part No. CG31.5L
Each
PHP180.32(exc. VAT)
In Stock
Dehn, DSH Modular Surge Protector 255 V ac Maximum Voltage Rating 12.5kA Maximum Surge Current Lightning Arrester
  • RS Stock No. 786-9345
  • Mfr. Part No. DSH TNS 255
Each
PHP84,049.94(exc. VAT)
Temporarily out of stock
Phoenix Contact, VAL-SPP Surge Arrester 335 V dc Maximum Voltage Rating 40kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 493-560
  • Mfr. Part No. 1466599
Each
PHP15,127.01(exc. VAT)
Temporarily out of stock
Bourns, 1977 Coaxial Surge Protection 130 V dc Maximum Voltage Rating 20kA Maximum Surge Current Coaxial Surge Protector
  • RS Stock No. 785-8200
  • Mfr. Part No. 1977-09-A03
Each
PHP8,379.91(exc. VAT)
Temporarily out of stock
Phoenix Contact, PT-IQ-5-HF Surge Protection Plug 6 V dc Maximum Voltage Rating 10kA Maximum Surge Current Protective
  • RS Stock No. 249-9506
  • Mfr. Part No. 2800795
Each
PHP16,436.42(exc. VAT)
Temporarily out of stock
Wurth Elektronik, WE-VD Varistor 6.42nF 10A, Clamping 93V, Varistor 47V
  • RS Stock No. 669-4355
  • Mfr. Part No. 820543001
Each (In a Pack of 5)
PHP47.746(exc. VAT)
Temporarily out of stock
TDK, EF470X 588V, Through Hole 2 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 183-9310
  • Mfr. Part No. B88069X5080T502
Each (On a Reel of 500)
PHP121.646(exc. VAT)
Temporarily out of stock
Murata Thermistor, 470Ω Resistance, PTC Type, 0805 (2012M), 2 x 1.25 x 0.9mm
  • RS Stock No. 785-5661
  • Mfr. Part No. PRF21AR471QB5RA
Each (In a Bag of 5)
PHP15.504(exc. VAT)
In Stock
EPCOS, CU Varistor 50pF 5A, Clamping 710V, Varistor 430V, 1210 (3225M)
  • RS Stock No. 769-1993
  • Mfr. Part No. B72650M0271K072
Each (In a Pack of 5)
PHP63.242(exc. VAT)
Temporarily out of stock
Panasonic, VF Surge Absorber 2.5A, Clamping 110V, Varistor 56V
  • RS Stock No. 110-1965
  • Mfr. Part No. ERZVF2M560
Each (In a Bag of 2000)
PHP48.907(exc. VAT)
Last RS stock
Phoenix Contact, VAL-MS-T1/T2 1000DCPV/2+V Surge Arrester Surge Arrester
  • RS Stock No. 241-6058
  • Mfr. Part No. 2801160
Each
PHP23,239.97(exc. VAT)
Temporarily out of stock
Phoenix Contact, VAL-SPP Surge Arrester 800 V dc Maximum Voltage Rating 40kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 493-564
  • Mfr. Part No. 1466770
Each
PHP13,718.12(exc. VAT)
Temporarily out of stock
Phoenix Contact, PLT-SEC Surge Protection Plug 264 V ac Maximum Voltage Rating Type 3 Surge Protection Device
  • RS Stock No. 207-2785
  • Mfr. Part No. 2907923
Each (In a Pack of 10)
PHP7,730.24(exc. VAT)
In Stock
Dehn, DG Modular Surge Protector 275 V ac Maximum Voltage Rating 40kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 768-1744
  • Mfr. Part No. DG M TNS 275
Each
PHP30,281.78(exc. VAT)
Last RS stock
Phoenix Contact, VAL-MS 1000DC-PV/2+V Surge Arrester 335 V ac Maximum Voltage Rating Surge Arrester
  • RS Stock No. 241-6057
  • Mfr. Part No. 2800628
Each
PHP22,583.10(exc. VAT)
In Stock
EPCOS, CT/B Multilayer Varistor 550pF 1A, Clamping 65V, Varistor 35.1 → 42.9V, 1206 (3216M)
  • RS Stock No. 775-2770
  • Mfr. Part No. B72520E0250K062
Each (In a Pack of 100)
PHP27.342(exc. VAT)
In Stock
Phoenix Contact, PT 2X1VA-230AC-ST Surge Protector 275 V ac Maximum Voltage Rating 0.5kA Maximum Surge Current
  • RS Stock No. 802-8144
  • Mfr. Part No. 2839198
Each
PHP8,799.47(exc. VAT)
Temporarily out of stock
Phoenix Contact, VAL Universal Base 1170 V dc Maximum Voltage Rating 80A Maximum Surge Current Base Element
  • RS Stock No. 287-7881
  • Mfr. Part No. 2905859
Each (In a Pack of 32)
PHP8,353.471(exc. VAT)
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