TPSMP13AHE3/85A

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Transient voltage suppression (TVS) diodes offer device users low on-state resistance, fast response, and bidirectional support to protect a circuit from voltage overshoots. TVS diodes are often referred to as transient voltage suppressors, transorbs, or Transil diodes after one of the original manufacturers of this type of diode. The TPSMP13AHE3/85A is a TVS diode that is commonly used for automotive application and provides reliable circuit protection when applied correctly.

Description

The TPSMP13AHE3/85A is a unidirectional transient voltage suppressor (TVS) diode specifically designed for automotive applications. It offers a peak pulse power ratings of up to 13A and a peak pulse voltage rating of up to 85V. The device comes in an SC-85 (3.81 x 4.45 x 1.5mm) molded plastic case and is RoHS compliant.

Applications

The TPSMP13AHE3/85A is widely used in automotive applications due to its low forward voltage drop, fast response time, and reliable protection capabilities. It can be used to protect automotive equipment against electrical transients that are caused by inductive loads, reverse battery protection, and byloadings from alternators. It is particularly suitable for numerous power, control, and signal lines that are used in automotive applications.

Working Principle

The TPSMP13AHE3/85A employs a three-layer avalanche breakdown TVS diode which acts to protect against damaging spikes in the voltage. At normal operating voltages, the TVS diode acts as an open circuit and the circuit remains unaffected. When exposed to a high voltage transient, the diode’s avalanche breakdown voltage is exceeded and it enters into a low impedance state. This dissipates the transient energy as heat which limits the peak voltage that reaches the circuit.

The TPSMP13AHE3/85A is specifically designed to offer reliable protection against voltage transients that occur in automotive applications. It mounts easily in line with the circuit to be protected and offers a fast response time. With its low on-state resistance and robust construction, the TPSMP13AHE3/85A is an ideal choice for automotive applications.

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