1PMT4621/TR7

Series:	POWERMITE®
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	3.6V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	1700 Ohms
Current - Reverse Leakage @ Vr:	7.5µA @ 2V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 200mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-216AA
Supplier Device Package:	DO-216

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Introduction

The 1PMT4621/TR7 is a single Zener diode used in a variety of applications. The diode has an epitaxial layer that is designed to withstand high voltages while providing low forward voltage drop and tight regulation. It also features a tight breakdown voltage tolerance of ±5%. This diode is a suitable replacement for other Zener diodes with the same voltage and ratings.

Applications

1PMT4621/TR7 diodes can be used for a variety of applications. They are commonly used for voltage clamping, circuit protection, and power management. They can also be used as a reference point for circuit design.The most common applications for 1PMT4621/TR7 diodes are DC/DC converter circuits, LED lighting, and circuit protection for automotive and industrial applications. In DC/DC converter circuits, the diode is used to convert an AC voltage to a regulated DC voltage. In LED lighting applications, 1PMT4621/TR7 diodes are used to protect LEDs from overvoltage conditions. In automotive and industrial applications, they are used to protect sensitive circuits from high voltage and current fluctuations.

Working Principle

1PMT4621/TR7 diodes use the Zener effect to function. The Zener effect occurs when a forward-biased diode is subjected to a strong electric field. This causes the junction to break down and creates an electric current in the reverse direction. This allows the diode to “clamp” the voltage on either side of it to a fixed level, which is known as the Zener Voltage. 1PMT4621/TR7 diodes have a Zener voltage of 4.7V. When the diode is forward-biased, it will begin to conduct current once the applied voltage reaches 4.7V. At this voltage, the diode will allow a current to pass in the reverse direction and be “clamped” at 4.7V. If a higher voltage is applied to the diode, the current will increase in the reverse direction, allowing the voltage to remain at 4.7V.

Conclusion

The 1PMT4621/TR7 is a single Zener diode that is used in a variety of applications. It has a tight breakdown voltage tolerance of ±5% and can be used for voltage clamping, circuit protection, and power management. Its working principle is based on the Zener effect, in which the diode can “clamp” the voltage on either side of it to a fixed level. This makes it an ideal choice for a variety of applications.

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