UDZ15B-7 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	15V
Tolerance:	±2%
Power - Max:	200mW
Impedance (Max) (Zzt):	42 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 11V
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323
Base Part Number:	UDZ15

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UDZ15B-7 is an excellent single Zener diode, whose maximum working power is 15 watts, operating at 7 volts. It is used to regulate or clamp the voltage or supply current against a high voltage or current. It uses the principle of reverse breakdown and conducts electrical current in reverse direction when the voltage across it reaches a certain fixed value. In other words, it offers a low and stable resistance when the input voltage becomes too high.
This Zener diode is especially designed for high power applications due to its 1 amp continuous forward current, 5 watt thermal power dissipation, and low maximum forward voltage drop of 1.1 volts. In addition, its maximum non-linear coefficient is 0.4v/A, which makes it suitable for the most applications
The two main characteristics of any Zener diode are its reverse breakdown and current-voltage characteristics. The reverse breakdown of the UDZ15B-7 is what gives it its voltage regulating properties. This characteristic occurs when the breakdown voltage of the diode, also known as the Zener voltage, is reached. Once the Zener voltage is reached, the diode will start to breakdown in the reverse direction and will regulate or clamp the voltage or current applied across it.
The other characteristic of this diode is its current-voltage curve. The current-voltage curve of the UDZ15B-7 is what gives it its excellent power regulating capability. The current-voltage curve usually consists of two parts: the forward (conventional) section and the reverse (breakdown) section. In the forward direction the diode works like a typical diode and offers a constant voltage drop across it dependent on the forward current passing through it. The reverse section is where the breakdown voltage is reached, and the diode starts to regulate or clamp the voltage or current applied across it.
The UDZ15B-7 single Zener diode is used in many applications such as voltage regulators, voltage protection, overvoltage protection and overvoltage circuits. Its high power handling, low forward voltage drop and high non-linear coefficient make it ideal for various power supply applications, power management systems and power distributions.
In summary, UDZ15B-7 is a single Zener diode with 15 Watts maximum working power, 7 Volts operating voltage, and 1 Amp continuous forward current. It is designed for high power applications such as voltage regulators, voltage protection, overvoltage protection and overvoltage circuits. Its reverse breakdown and current-voltage characteristics make it ideal for many power supply and power management systems.

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