1PMT5919/TR13

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	5.6V
Tolerance:	±20%
Power - Max:	3W
Impedance (Max) (Zzt):	2 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 3V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-216AA
Supplier Device Package:	DO-216AA
Base Part Number:	1PMT5919

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Introduction

The 1PMT5919/TR13 Diode is a single Zener diode, with a wide range of applications and working principles. This diode is manufactured and designed by NXP Semiconductors, and is primarily used in automotive applications such as in lighting systems, ECUs, switches, and other applications. This diode has an operating temperature range of -40°C to +150°C, and maximum operating voltages of 24V and 27V.

Application

One of the main functions of the 1PMT5919/TR13 diode is to act as a voltage regulator in lighting systems, ECUs, and other components that require constant voltage. This diode is also often used in motor starting circuits, as it can be used for a wide range of currents. The diode is also used for reverse polarity protection in automotive applications, providing protection against damage caused by undesired power transients.

Working Principle

The 1PMT5919/TR13 diode works on the basis of the Zener breakdown effect, where current flows from the diode’s anode (positive) to its cathode (negative) when the voltage across it exceeds a certain value. This certain value is known as the Zener voltage. In this type of diode, the Zener voltage is chosen between 24V and 27V, the two different types depending on the application. When the voltage drop across the diode is below the Zener voltage, the Zener diode is essentially a reverse-biased junction and does not conduct current. However, when the voltage drop across the diode is equal to the Zener voltage, the diode begins to suddenly break down and the diode conducts current. This reduces the voltage across the diode and maintains a nearly constant voltage. As a result, the diode limits the voltage across the rest of the wiring and components.

Conclusion

In conclusion, the 1PMT5919/TR13 diode is a versatile Zener diode, with many automotive and general applications. Its working principle is based on the Zener breakdown effect, where a voltage across the diode is limited when the voltage exceeds a certain level. This diode is an excellent choice for reverse polarity protection, or for regulating voltages in electronics and automotive applications.

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