MXP4KE27AE3 Circuit Protection

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Transient voltage suppressors (TVS) are some of the most important components used in industrial applications. As an essential component of any system, TVSs are designed to protect digital and analog components from voltage spikes or transients, resulting in enhanced safety, protection, and system reliability. TVSs are usually employed on the power input side to protect sensitive components from over-voltage. In addition, they are also commonly used in military equipment, power systems, computers, automotive electronics, telecommunications, medical equipment, consumer electronics, etc.

MXP4KE27AE3 is the typical type of TVS-diode manufactured by Littelfuse. It is suitable for protecting against voltage transients caused by lightning or switching inductive and capacitive loads. MXP4KE27AE3 is a unidirectional transient voltage suppressor suitable for applications such as data lines, electronic equipment, AC line protection, and telecommunications. This product is constructed of silicon avalanche diode chips and molded epoxy resin which isthen wrapped in a graphite coat. This diode is available in Surface Mount and Axial Leaded packaging types.

The MXP4KE27AE3 has a Repetitive Peak Reverse Voltage rating of 27V. Accordingly, reverse voltages up to 27V can be safely applied without causing any damage to the diode. The Peak Pulse Power dissipation is 1500W (8 /20 μs). The Total Capacitance at 1MHz is <= 6.2pF. This device is relatively small with a length of 3mm and a width of 2.6mm, making it ideal for many compact electronic applications. The Operating Junction Temperature range of the device is -65C to +150C.

The working principle of the MXP4KE27AE3 is very simple. When an over-voltage is applied, the diode will become forward biased and the current will flow through it. This will cause some of the current to be diverted from the sensitive component. In order to limit the amount of current that flows through to the sensitive component, the diode is typically placed in series with it. As the current passes through the diode, the voltage across it will become greater, causing it to break down and thus diverting some of the current away from the sensitive component.

The MXP4KE27AE3 is generally used in systems where protection against transient voltage is required. It has wide range of applications, including automotive electronics, power systems, communications, medical equipment, military, and consumer electronics. The product provides excellent protection against voltage transients, ensuring system reliability.

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