1PMT4117CE3/TR13

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Diodes have been around since their invention in 1904 and are now one of the most popular and essential electronic components. Introduced in 1923, the Zener diode was developed to regulate voltages in electronic circuits. Nowadays, it has become a common tool for regulating and protecting circuits against overvoltages. The 1PMT4117CE3/TR13 is a single Zener diode that was designed for applications that call for developed by Vishay Semiconductors.

The 1PMT4117CE3/TR13 is the epitome of efficiency and reliability in device engineering. It is an optimized, unilateral device that is designed for operation and reverse protection in the voltage range of 12V-83V. The Zener diode has a leakage current of a maximum of 4µA and a power dissipation of a maximum of 500mW at an ambient temperature of 25°C. Its maximum voltage reverse breakdown is at 13V.

The 1PMT4117CE3/TR13’s main characteristic is that it can control the flow of current in one direction (diode action). The same can be done in the reverse direction (Zener effect), whereby the current remains zero, even when the voltage reaches the breakdown value (provided the power dissipation remains inside its limits). Due to its unidirectional characteristics, the diode can help to regulate and prevent overvoltages.

The working principle of the 1PMT4117CE3/TR13 is both straightforward and complex. In a single diode, a voltage drop occurs across the device due to the reversal of the p-n junction. The junction is composed of an anode (A) and a cathode (K). The electric flow of the junction is defined by the PN junction, which has a negative voltage drop at the cathode. During pin-initiation and forward-biasing of the junction, the current flows from the anode to the cathode. The current flow is blocked in the reverse direction.

The Zener effect works in a similar way to the diode action in reverse bias. However, a hole-electron pair is generated at the junction, giving rise to an increased reverse current. This current is regulated and limited by the power dissipation, which is kept constant in the reverse direction. When the voltage of the breakdown point is attained, the result is an avalanche breakdown. The power dissipation increases with an increase in the voltage, which would lower the breakdown point if left unchecked. In the 1PMT4117CE3/TR13, the power dissipation has been kept constant to ensure the breakdown point remains at 13V.

The 1PMT4117CE3/TR13 is the ideal single Zener diode for application fields such as invertors, DC-DC converters, power supplies, power amplifiers and other devices. It can also be used as a voltage regulator or voltage reference. The diode is well-suited for environments where power dissipation, leakage and breakdown voltage accuracy are of utmost importance. It is an efficient and reliable device that has a simple yet effective working principle.

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