JAN1N4977US Uncategorized |
|
| Allicdata Part #: | JAN1N4977USS-ND |
| Manufacturer Part#: |
JAN1N4977US |
| Price: | $ 7.32 |
| Product Category: | Uncategorized |
| Manufacturer: | Semtech Corporation |
| Short Description: | 62V ZENER 500W |
| More Detail: | N/A |
| DataSheet: |  JAN1N4977US Datasheet/PDF |
| Quantity: | 1000 |
| 150 +: | $ 6.64606 |
Specifications
| Series: | * |
| Part Status: | Active |
Description
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The JAN1N4977US is a common controlled surge protector released by Vishay. It is designed to protect telecommunications, computer, and other electronics from large surges in power, specifically to the power board or signal line. While it is most frequently applied to serial communication lines, it can be used for any situation where the user needs protection from voltage spikes or overvoltage.
The JAN1N4977US is composed of a shunt, a metal oxide varistor (MOV), a resistor, and a varistor. The MOV is a voltage-sensing device that protects against electrical over-voltage and holds the device in a quiescent state until the power or voltage exceeds the upper or lower thresholds. The mov acts as a “limiter,” keeping the power or voltage steady, no matter how high the spikes may go. The resistor is used to limit the current surge that would otherwise cause damage to the protected device.
The varistor acts as the “shunt,” transferring any current that is too much for the protected device to handle. The shunting process funnels excess current away from the device, protecting it from over-voltage or high-power surges. If the overvoltage is high enough, the varistor is triggered and the voltage is diverted or shunted away from the device. As long as the voltage is below the device’s predetermined threshold, the protection is maintained and the device remains safe.
The JAN1N4977US has a wide variety of applications, such as surge protection for computers, printers, routers, modems, modules and any other electronic device. This product helps protect vulnerable equipment from surge erosion, caused by lightning and other high energy events. In cases where the surge resistor or MOV cannot entirely absorb the surge, the protective circuitry of the device still helps protect the device by limiting the current that passes through it. The JAN1N4977US also improves the input signal quality, making it ideal for applications such as communication and networking.
The working principle behind the JAN1N4977US is relatively simple yet hugely effective. The MOV and resistor, when combined, form a surge protection network that absorbs any potentially damaging surges or spikes in power. The MOV senses any voltage that exceeds a predetermined threshold and quickly diverts it away from the protected device. The resistor prevents the diverted surge from passing through the device, thus protecting it against potentially damaging overloads. The varistor acts as a “shunt” for any current that is too much for the protected device to handle. By diverting the current away from the device, it helps protect it from over-voltage or high-power surges.
In conclusion, the JAN1N4977US is an effective tool for protecting many types of electronic devices from surge erosion, caused by lightning and other high energy events. This product is composed of a shunt, a metal oxide varistor (MOV), a resistor, and a varistor, which together create a network designed to protect vulnerable equipment from surge erosion. The MOV senses any voltage that exceeds a predetermined threshold and quickly diverts it away from the protected device, while the resistor prevents the diverted energy from passing through the device. The varistor then acts as a “shunt” for any energy that is too much for the protected device to handle, keeping it safe in the process.
The specific data is subject to PDF, and the above content is for reference
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