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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

    4527 Products showing for Surge Protection Components

    1 of 227
    EPCOS, Standard Metal Oxide Varistor 4.95nF 10A, Clamping 93V, Varistor 47V
    • RS Stock No. 204-1930
    • Mfr. Part No. B72214S0300K101
    Each (In a Pack of 5)
    €0.682
    Littelfuse, LA Metal Oxide Varistor 500pF 50A, Clamping 650V, Varistor 429V
    • RS Stock No. 800-7059
    • Mfr. Part No. V250LA20AP
    Each (In a Pack of 10)
    €0.491
    Phoenix Contact, GDT Surge Protection Plug 264 V AC Maximum Voltage Rating 80kA Maximum Surge Current
    • RS Stock No. 135-583
    • Mfr. Part No. 2910332
    Each
    €109.31
    EPCOS, Standard Metal Oxide Varistor 260pF 10A, Clamping 250V, Varistor 150V
    • RS Stock No. 204-1867
    • Mfr. Part No. B72207S0950K101
    Each (In a Pack of 5)
    €0.388
    Panasonic Thermistor, 4.7kΩ Resistance, NTC Type, 0402 (1005M), 1 x 0.5 x 0.5mm
    • RS Stock No. 763-4616
    • Mfr. Part No. ERTJ0ET472H
    Each (In a Pack of 25)
    €0.065
    TE Connectivity NTC Thermistor, 10kΩ Resistance, NTC Type, 5 x 20mm
    • RS Stock No. 187-9300
    • Mfr. Part No. GA10K3435DM010
    Each (In a Pack of 2)
    €13.785
    EPCOS, Standard Metal Oxide Varistor 4.95nF 10A, Clamping 30V, Varistor 47V
    • RS Stock No. 134-5683
    • Mfr. Part No. B72214S0300K
    Each (In a Bag of 500)
    €0.215
    TE Connectivity Thermistor, NTC Type, 2.4 x 76mm
    • RS Stock No. 893-7137P
    • Mfr. Part No. GA10K3A1A
    Each (Supplied in a Bag)
    €7.50
    Red Lion, R-C Surge Suppressor Unit 250 V dc Maximum Voltage Rating Inductive Load Suppressor
    • RS Stock No. 905-5771
    • Mfr. Part No. SNUB0000
    Each
    €10.63
    Phoenix Contact, VAL-EV-T1/T2 264/12.5/3+1-R Lightning / Surge Arrester
    • RS Stock No. 269-8066
    • Mfr. Part No. 1180150
    Each
    €567.06
    EPCOS, Standard Metal Oxide Varistor 430pF 25A, Clamping 395V, Varistor 240V
    • RS Stock No. 289-7036
    • Mfr. Part No. B72210S0151K101
    Each (In a Pack of 5)
    €0.596
    Amphenol Advanced Sensors Thermistor
    • RS Stock No. 210-4308
    • Mfr. Part No. CL-110
    Each (In a Pack of 10)
    €0.838
    EPCOS, Standard Metal Oxide Varistor 100pF 10A, Clamping 775V, Varistor 470V
    • RS Stock No. 204-2078
    • Mfr. Part No. B72207S0301K101
    Each (In a Pack of 5)
    €0.424
    Amphenol Advanced Sensors Thermistor
    • RS Stock No. 210-4309
    • Mfr. Part No. CL-120
    Each (In a Bag of 2000)
    €0.711
    EPCOS Thermistor, 100kΩ Resistance, NTC Type, 1.3 x 2.2mm
    • RS Stock No. 769-1934
    • Mfr. Part No. B57550G1104F000
    Each (In a Pack of 5)
    €2.208
    EPCOS, Standard Metal Oxide Varistor 440pF 50A, Clamping 710V, Varistor 430V
    • RS Stock No. 289-7187
    • Mfr. Part No. B72214S0271K101
    Each (In a Pack of 5)
    €0.596
    Littelfuse, LA Metal Oxide Varistor 800pF 50A, Clamping 395V, Varistor 268V
    • RS Stock No. 543-4953
    • Mfr. Part No. V150LA10AP
    Each (In a Pack of 5)
    €0.618
    Phoenix Contact, PT Replacement Module
    • RS Stock No. 131-562
    • Mfr. Part No. 2800989
    Each
    €190.97
    Vishay, VDRS - E Metal Oxide Varistor 140pF 10A, Clamping 710V, Varistor 430V
    • RS Stock No. 178-071
    • Mfr. Part No. VDRS07H275BSE
    Each (In a Pack of 5)
    €1.03
    Vishay, NTCLE100E3 Varistor 270pF 25A, Clamping 710V, Varistor 430V
    • RS Stock No. 229-056
    • Mfr. Part No. VDRS10P275BSE
    Each (In a Pack of 5)
    €1.356
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