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

7857 Products showing for Surge Protection Components

1 of 393
Stock information currently inaccessible
EPCOS, MT25 Metal Oxide Varistor 1.32nF, Varistor 430V, Radial
  • RS Stock No. 202-0481
  • Mfr. Part No. B72225M0271M301
Subtotal (40 units, in trays of 40)
CHF.160.66(exc. VAT)
CHF.160.66/tray
Stock information currently inaccessible
Bourns, ZVHT Varistor 340 pF 1 A, Clamping 135 V, Varistor 82 V, 1206
  • RS Stock No. 204-8827
  • Mfr. Part No. ZV50K1206121NIR1HT
Subtotal (2000 units, on reels of 2000)
CHF.160.00(exc. VAT)
CHF.0.08/unit
Stock information currently inaccessible
Bourns, PV Varistor 120 pF 5 A, Clamping 455 V, Varistor 270 V, 3225
  • RS Stock No. 204-8728P
  • Mfr. Part No. PV175K3225R2
Subtotal (10 units, supplied on a continuous strip)
CHF.2.83(exc. VAT)
CHF.0.283/unit
Stock information currently inaccessible
Bourns, AV Varistor 7 nF 10 A, Clamping 54 V, Varistor 22 V, 2220
  • RS Stock No. 209-8098
  • Mfr. Part No. AV20K2220122NIR1
Subtotal (1000 units, on reels of 1000)
CHF.371.00(exc. VAT)
CHF.0.371/unit
Stock information currently inaccessible
EPCOS, Standard Metal Oxide Varistor 13 nF 20 A, Clamping 65 V, Varistor 33 V
  • RS Stock No. 204-1974
  • Mfr. Part No. B72220S0200K101
Subtotal (5 units, in packs of 5)
CHF.5.15(exc. VAT)
CHF.1.03/unit
Stock information currently inaccessible
Bourns, PV Varistor 270 pF 5 A, Clamping 200 V, Varistor 120 V, 3225
  • RS Stock No. 204-8701
  • Mfr. Part No. PV75K3225R2
Subtotal (1500 units, on reels of 1500)
CHF.318.00(exc. VAT)
CHF.0.212/unit
Stock information currently inaccessible
TDK NTC Thermistor, NTC Type 10 kΩ, 0603 0.8 mm 1.6 mm 0.8 mm
  • RS Stock No. 202-5358
  • Mfr. Part No. NTCG164BF103HT1
Subtotal (4000 units, on reels of 4000)
CHF.368.00(exc. VAT)
CHF.0.092/unit
Stock information currently inaccessible
EPCOS, Standard Metal Oxide Varistor 260 pF 10 A, Clamping 250 V, Varistor 150 V
  • RS Stock No. 204-1867P
  • Mfr. Part No. B72207S0950K101
Subtotal (5 units, supplied in a bag)
CHF.1.71(exc. VAT)
CHF.0.342/unit
Stock information currently inaccessible
Bourns, ZVHT Varistor 210 pF 1 A, Clamping 33 V, Varistor 18 V, 0603
  • RS Stock No. 204-8750
  • Mfr. Part No. ZV11K0603300NIR1HT
Subtotal (50 units, in packs of 50)
CHF.4.30(exc. VAT)
CHF.0.086/unit
Stock information currently inaccessible
EPCOS Thermistor, NTC Type 22 kΩ 2 mm 3 mm 5 mm
  • RS Stock No. 191-2279P
  • Mfr. Part No. B57164K0223J000
Subtotal (5 units, supplied in a bag)
CHF.2.68(exc. VAT)
CHF.0.536/unit
Stock information currently inaccessible
Bourns, DV Varistor 1.9 nF 5 A, Clamping 77 V, Varistor 39 V, 4032
  • RS Stock No. 204-8660
  • Mfr. Part No. DV25K4032R2
Subtotal (2000 units, on reels of 2000)
CHF.1'236.00(exc. VAT)
CHF.0.618/unit
Stock information currently inaccessible
Bourns, ZVHT Varistor 330 pF 1 A, Clamping 165 V, Varistor 100 V, 1206
  • RS Stock No. 204-8837
  • Mfr. Part No. ZV60K1206121NIR1HT
Subtotal (25 units, in packs of 25)
CHF.6.225(exc. VAT)
CHF.0.249/unit
Stock information currently inaccessible
Bourns, DV Varistor 530 pF 10 A, Clamping 165 V, Varistor 100 V, 4032
  • RS Stock No. 204-8665P
  • Mfr. Part No. DV60K4032R2
Subtotal (10 units, supplied on a continuous strip)
CHF.4.61(exc. VAT)
CHF.0.461/unit
Stock information currently inaccessible
Bourns, ZVHT Varistor 260 pF 1 A, Clamping 65 V, Varistor 39 V, 0805
  • RS Stock No. 204-8788
  • Mfr. Part No. ZV25K0805121NIR1HT
Subtotal (3500 units, on reels of 3500)
CHF.231.00(exc. VAT)
CHF.0.066/unit
Stock information currently inaccessible
Amphenol Advanced Sensors Thermistor 16 Ω 4.57 mm
  • RS Stock No. 210-4318
  • Mfr. Part No. CL-180
Subtotal (2000 units, in bags of 2000)
CHF.1'310.00(exc. VAT)
CHF.0.655/unit
Stock information currently inaccessible
Wurth Elektronik, WE-VE femtoF Surface Mount Varistors 0.05pF 16A, Clamping 45V, 0402
  • RS Stock No. 196-7910
  • Mfr. Part No. 8231714A
Subtotal (10000 units, on reels of 10000)
CHF.2'320.00(exc. VAT)
CHF.0.232/unit
Stock information currently inaccessible
Bourns, ZVHT Varistor 175 pF 1 A, Clamping 54 V, Varistor 33 V, 0603
  • RS Stock No. 204-8775
  • Mfr. Part No. ZV20K0603300NIR1HT
Subtotal (50 units, in packs of 50)
CHF.2.90(exc. VAT)
CHF.0.058/unit
Stock information currently inaccessible
Bourns, ZVHT Varistor 620 pF 1 A, Clamping 54 V, Varistor 33 V, 1206
  • RS Stock No. 204-8778
  • Mfr. Part No. ZV20K1206201NIR1HT
Subtotal (2500 units, on reels of 2500)
CHF.220.00(exc. VAT)
CHF.0.088/unit
Stock information currently inaccessible
Bourns, PV Varistor 70 pF 5 A, Clamping 775 V, Varistor 400 V, 3225
  • RS Stock No. 204-8744
  • Mfr. Part No. PV300K3225R2
Subtotal (1000 units, on reels of 1000)
CHF.235.00(exc. VAT)
CHF.0.235/unit
Stock information currently inaccessible
Bourns, AV Varistor 1 nF 1 A, Clamping 40 V, Varistor 24 V, 1206
  • RS Stock No. 209-8074
  • Mfr. Part No. AV14K1206201NIR1
Subtotal (25 units, on tapes of 25)
CHF.4.375(exc. VAT)
CHF.0.175/unit
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