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    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

    26 Products showing for Surge Protection Components

    1 of 2
    RS PRO Surge Suppressor Unit 253 V Maximum Voltage Rating 6.5kA Maximum Surge Current EMC Filter
    • RS Stock No. 206-7926
    Each
    PHP18,215.62
    RS PRO Thermistor, 10kΩ Resistance, NTC Type, 2.4 x 63.5mm
    • RS Stock No. 151-237
    Each
    PHP232.77
    RS PRO Thermistor, 10kΩ Resistance, NTC Type, 2.4 x 63.5mm
    • RS Stock No. 169-1867
    Each (In a Box of 100)
    PHP101.442
    RS PRO RC Network Capacitor 500 V Maximum Voltage Rating 3 Phase
    • RS Stock No. 240-400
    Each
    PHP1,174.04
    RS PRO RC Network Capacitor 500 V Maximum Voltage Rating 1 Phase
    • RS Stock No. 813-430
    Each
    PHP1,083.93
    RS PRO RC Network Capacitor 500 V Maximum Voltage Rating Mains Protector
    • RS Stock No. 240-393
    Each
    PHP843.50
    RS PRO Surge Suppressor Unit 253 V Maximum Voltage Rating 6.5kA Maximum Surge Current EMC Filter
    • RS Stock No. 206-7910
    Each
    PHP14,988.24
    RS PRO Surge Suppressor Unit 230 V ac Maximum Voltage Rating 13.5kA Maximum Surge Current Mains Protector
    • RS Stock No. 206-7522
    Each
    PHP3,884.23
    RS PRO Thermistor, 50kΩ Resistance, NTC Type, DO-35, 2 x 4.2mm
    • RS Stock No. 198-955
    Each (In a Pack of 5)
    PHP142.546
    RS PRO Thermistor, 20kΩ Resistance, NTC Type, DO-35, 2 x 4.2mm
    • RS Stock No. 198-933
    Each (In a Pack of 5)
    PHP142.546
    RS PRO Surge Suppressor Unit Telephone Line Protector
    • RS Stock No. 325-6537
    Each
    PHP31,711.02
    RS PRO Metal Oxide Varistor
    • RS Stock No. 240-236
    Each
    PHP4,642.55
    RS PRO Thermistor, 3kΩ Resistance, NTC Type, 2.4 x 63.5mm
    • RS Stock No. 151-215
    Each
    PHP221.13
    RS PRO Thermistor, 10kΩ Resistance, NTC Type, DO-35, 2 x 4.2mm
    • RS Stock No. 198-927
    Each (In a Pack of 5)
    PHP142.546
    RS PRO Thermistor, 100kΩ Resistance, NTC Type, 2.4 x 63.5mm
    • RS Stock No. 151-243
    Each
    PHP232.77
    RS PRO Thermistor, 3kΩ Resistance, NTC Type, 2.4 x 63.5mm
    • RS Stock No. 169-1864
    Each (In a Box of 100)
    PHP101.442
    RS PRO Metal Oxide Varistor 1.94nF, Clamping 1200V, Varistor 710V
    • RS Stock No. 240-157
    Each
    PHP1,983.29
    RS PRO Metal Oxide Varistor
    • RS Stock No. 240-242
    Each
    PHP4,406.21
    RS PRO Metal Oxide Varistor 1.62nF, Clamping 1200V, Varistor 710V
    • RS Stock No. 240-208
    Each
    PHP2,042.45
    RS PRO Metal Oxide Varistor 1.71nF, Clamping 1050V, Varistor 610V
    • RS Stock No. 240-185
    Each
    PHP2,165.69
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