UDZSTE-177.5B Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Voltage - Zener (Nom) (Vz):	7.5V
Tolerance:	±2%
Power - Max:	200mW
Impedance (Max) (Zzt):	30 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 4V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-90, SOD-323F
Supplier Device Package:	UMD2
Base Part Number:	UDZ7V5

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Diodes - Zener - Single

The UDZSTE-177.5B is a type of single Zener diode that is used for a wide variety of electrical applications. It is a two-terminal device that has a reverse voltage breakdown and can be used for voltage stabilizing or limiting. This type of diode is especially useful when you need to protect sensitive equipment from voltage spikes or normal fluctuations in the system.The UDZSTE-177.5B has the following features:* Peak repetitive reverse voltage: 177.5V* Standoff voltage: 167 V* Maximum reverse current: 2m A* Zener Impedance: 83 Ω* Tolerance: ±5%* Operating temperature: -55 to +150 °CThe UDZSTE-177.5B works by using the Zener effect which is a process by which electrons in the junction of a p-n type semiconductor are accelerated by an increased applied potential, until they become energetic enough to break out of the valence band and cross the junction into the conduction band. This model also contains a Zener diode, which is a p-n junction diode device. It is specially designed for use in applications where a reverse voltage in excess of the breakdown rating is expected.The Zener diode acts like a normal diode in the forward direction, allowing current to flow from anode to cathode. However in reverse direction, the applied voltage is limited to the breakdown voltage of the device. This is because the reverse breakdown happens when the applied potential reduces the intensity of the potential barrier between the n-type and p-type material, creating electrons in the conduction band without having to receive energy from the external voltage. This reverse breakdown also generates a high current due to the applying voltage very rapidly. In order to protect against this current and prevent damage to the diode, an external resistor should be connected in series with the diode. The external resistor should be chosen according to resistive power loading and the maximum allowable current.The UDZSTE-177.5B is generally used in power supply circuits, voltage regulators, protect circuits, and voltage clamping. It is commonly used in relay circuits, LED circuits, computer circuits, and communication circuits. It can also be used for over-voltage protection and DC pulse clipping. In conclusion, the UDZSTE-177.5B is a single Zener diode that is widely used in a variety of electrical applications. It has a reverse voltage breakdown and is designed specially to protect sensitive circuits and devices from voltage spikes and normal fluctuations. This type of diode is mostly used in power supply and protection circuits, LED circuits, and communication circuits.

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