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What is the reed switch breakdown voltage? What is the reed switch insulation resistance? What is the reed switch dielectric absorption

- May 22, 2018 -

Reed switch breakdown voltage

Usually higher than the switching voltage, reed switches can withstand higher voltages because, unlike switching voltages, there is no need to consider the arc discharge at turn-off. For large size vacuum reed switches, withstand voltages as high as 15,000 VDC are common, and some smaller vacuum reed switches can withstand 4,000 VDC. Small gas-filled reed switches generally withstand dc voltages. 250 to 600 volts.



Reed switch insulation resistance

Measure the degree of insulation between the two ends of the switch. It is also this parameter that makes reed switches look so unique compared to other switches. Reed switches typically have an insulation resistance of 1x1014 ohms. This high insulation resistance can tolerate leakage currents between (picoAmp) and (femp-toAmp), which makes some semiconductor tests possible. When testing semiconductors, there may be several gates in parallel, and the collected leakage current will have a great impact on the test circuit.



Reed Dielectric Absorption

Describe the effects of different dielectrics on small currents. Currents lower than 1 nanoamperes can be slowed or delayed by the influence of the dielectric, depending on the level of the current to be measured. This delay can reach several seconds.


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