4302-680

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Feed through capacitors are used to create a high frequency filter between a power source and a device. They are typically used on medical devices, test equipment, aviation, and space applications. The 4302-680 type feed through capacitor is used in order to reduce noise, improve performance, and increase safety. It features a ceramic dielectric with excellent dielectric properties and a wide working temperature range.

The 4302-680 feed through capacitor operates on the principle of allowing alternating current (AC) to pass through while blocking direct current (DC) from doing the same. This is done by using the capacitor’s dielectric material to block the passage of DC while allowing the passage of the higher frequency AC. The device is non-polarized and has a voltage rating of up to 680 volts.

The device is composed of an epoxy case that is filled with a ferrite ceramic. The inner ceramic is composed of two layers of dielectric material; the bottom layer is the insulating layer, while the top layer is the conductive layer. This structure is then topped with an aluminum shell. The shell serves as a shield to protect the ceramic from external electric fields. The entire device is then enclosed in the epoxy case and sealed to protect from environmental effects.

The 4302-680 uses high temperature ceramic sintering to bond the dielectric layers together. This process takes place at temperatures up to 600°C and increases the capacitive value as well as the dielectric strength of the device. The device has self-healing capability and is capable of handling higher surges. The epoxy case and aluminum shell ensure maximum noise isolation and safety.

The 4302-680 feed through capacitor is commonly used in power lines, DC/AC filters, and surge protection devices. It is typically used between a power source and a device in order to provide a high frequency filter that reduces noise and interference. This low profile, cost-effective device is capable of running at temperatures up to 140°C.

In conclusion, the 4302-680 feed through capacitor is a highly reliable device used to reduce noise and improve the performance of a device. The epoxy case and ceramic dielectric layers provide an excellent high temperature and surge protection. The device is suitable for use in medical, aviation, and space applications due to its light weight and excellent dielectric properties.

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