Metal Oxide Varistor
A range of voltage dependent metal oxide varistors designed to protect equipment against transient voltage spikes. The varistors are connected directly across the power supply rails. When a when a voltage spike is encountered, the varistor rapidly changes impedance from its normal high impedance state while in standby mode, to a very low level, permitting absorbtion of the unwanted high voltage, and protecting voltage sensitive components and circuits from damage. Epoxy coated disc construction with radial leads. UL & CSA approved.
Response time: | <50ns |
Voltage coefficient/temperature: | ±0.05%/°C |
DC leakage current: | 200uA max. |
Insulation voltage: | <330V nom. varistor voltage - 1000Vrms >330V nom. varistor voltage - 1500Vrms |
Storage temp. range: | -40°C to +85°C |
Operating temp. range: | -40°C to +125°C |
Body Style | D Max | H Max | Lead pitch F | Lead dia. D |
20D | 24 | 25 | 7.5 | 0.8 |
Manufacturers Ref. | Max Voltage VAC | Max Voltage VDC | Varistor Voltage Nominal | Clamping Voltage (Max V at A) | Peak Transient Current (A) | Max Energy 2ms (Joule) | Rated Power (W) | T max |
20D431K | 275 | 350 | 430 | 710@100A | 6500 | 140 | 1 | 5.4 |
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