Switching Spark Gaps

Switching spark gaps are a voltage-controlled piece of equipment used in the surge protection of electrical devices. They are used to switch circuits where you need the switch to happen fast and at a high energy, but without losing too much of that energy. They break down in the event of a voltage spike, shunting the excess voltage safely to the ground. They can operate at a wide range of temperatures.

What are switching spark gaps used for?

Switching spark gaps are often used in heating and gas appliances, both in buildings and in automotive vehicles. They can also be found in high voltage switches, in power plants and electrical substations, and large power transformers.

Types of switching spark gaps

Switching spark gaps have differing capacities for operation. This means that their voltage tolerance, peak current, maximum switching frequency and breakdown voltage can all vary, sometimes significantly. They can also differ by size, in the length and diameter of their tube.


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Description Price Breakdown Voltage Voltage Tolerance Peak Current Maximum Switching Frequency Minimum Switching Operations Overall Length Lead Length Tube Length Tube Diameter Minimum Operating Temperature Maximum Operating Temperature
RS庫存編號 771-0029
製造零件編號B88069X0260S102
BrandEPCOS
HK$42.284
/個 (每包:5個)
單位
3000V - 50A 400Hz - 60mm 60mm - 0.8mm 0°C +100°C
RS庫存編號 167-0455
製造零件編號B88069X0260S102
BrandEPCOS
HK$27.72
個 (以毎袋:100)
單位
3000V - 50A 400Hz - 60mm 60mm - 0.8mm 0°C +100°C
RS庫存編號 172-7269
製造零件編號ST-0840-BLT-STD
BrandBourns
HK$10.08
個 (在毎卷:1000)
單位
840V 12% 450A 500Hz 200000 Cycles 85mm 85mm 90mm 356mm -40°C +170°C
RS庫存編號 780-4880
製造零件編號ST-0840-BLT-STD
BrandBourns
HK$23.258
/個 (每包:5個)
單位
840V 12% 450A 500Hz 200000 Cycles 85mm 85mm 90mm 356mm -40°C +170°C
RS庫存編號 167-0454
製造零件編號B88069X0270S102
BrandEPCOS
HK$52.492
個 (以毎袋:100)
單位
5000V - 30A 100Hz - 60mm 60mm - 0.8mm 0°C +100°C
RS庫存編號 162-0261
製造零件編號B88069X0680T502
BrandEPCOS
HK$12.677
個 (在毎卷:500)
單位
230V - 300A 25Hz - 60mm 60mm - 0.8mm -20°C +125°C
RS庫存編號 771-0022
製造零件編號B88069X0270S102
BrandEPCOS
HK$44.154
/個 (每包:5個)
單位
5000V - 30A 100Hz - 60mm 60mm - 0.8mm 0°C +100°C
RS庫存編號 771-0026
製造零件編號B88069X0680T502
BrandEPCOS
HK$20.528
/個 (每包:5個)
單位
230V - 300A 25Hz - 60mm 60mm - 0.8mm -20°C +125°C