The varistor is advantageously a high-temperature varistor.
A surge arrester comprises a varistor arrangement, wherein the varistor arrangement has a plurality of varistor modules (3a, 3b, 3c, 3d, 12a, 12b, 12c, 12d).
The varistor layer has an internal electrode.
Further, the varistor element is a metal oxide varistor and the insulating plate is a ceramic plate (alumina).
A method of making varistor chips is disclosed.
A resistor (12), such as a voltage dependent resistor, and a voltage controlled discharge device (13) may be connected in parallel with the capacitor.
The surge protective device of the first type (4) comprises a voltage dependent resistor or varistor and the surge protective device of the second type (9) comprises a lightning current arrester or spark gap element.
The ignition circuit (Z) is designed for connection to the auxiliary electrodes (H1, H2), wherein the ignition circuit (Z) has two ignition subcircuits (TZ1, TZ2).
A varistor has a first porous coating film in contact with a varistor element and a second coating film coating the first coating film.
The varistor (2a) in low ohmic state allows high current to run through the varistor (2a) thus enabling the operation of external over-current protection.
The varistor and the PTC resistor are electrically connected in series.
The varistor element is connected to the first temperature fuse in parallel.
The power electronics unit (300, 400) has at least one varistor unit (500).
Furthermore, one end of a varistor (23) is connected between the antenna terminal (10) and the diplexer (11) while the other end of he varistor (23) is connected to a ground terminal (24).
The present invention further provides a low voltage zinc oxide varistor.
Disclosed is a surface mounting varistor for high-voltage and large-current pulses, which does not have a risk of burning a substrate.
A varistor block (1) is formed from several varistor elements (2a, 2b, 2c, 2d) while an electrically insulating coating (5, 5a, 5b) is disposed around the varistor elements (2a, 2b, 2c, 2d).
The slices are in turn diced to make the varistor chips.
Each of the varistor ranges (2a, 2b) comprises at least one first electrode (4a, 4b), wherein at least two varistor ranges (2a, 2b) comprise at least one common second electrode (5).
A somewhat stronger current flows through the weak spot (2) of the body (1) of the varistor, when current flows through the varistor regardless of the cause of appearance of that current.
A leaf spring (30) which is biased when the varistor is inserted into the slot pushes the varistor out of the slot when the solder (28) melts.
A surge arrester includes a stack of components having at least one varistor.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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