Hyderabad
08048036175
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General Lab Supplies by MNC CHEMICALS SURGICALS

Zener Diode Characteristics Apparatus (Forward & Reverse V-I Characteristics)

INR 4032
In stockcod available
Phone Number

08048036175

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Email Address mnc.naveen@gmail.com

Mon-Thu: 10 AM - 2 PM • Fri: 3 PM - 7AM

Address Correspondence Address: Shop No. 20, 2nd Floor, Srirama Tower, Bogulkunta, Telangana

Hyderabad, India, 500001

Description

The Zener Diode Characteristics Apparatus is a laboratory instrument designed for studying the electrical behavior of a Zener diode under both forward and reverse bias, specifically focusing on its V-I (voltage-current) characteristics, including breakdown region operation. Apparatus Description The typical setup features: A regulated DC power supply (usually 0–15 V or 0–25 V, 15–150 mA). Dual analog or digital meters to measure voltage (V) and current (mA). Several Zener diodes mounted on the panel (often with values like 5.1 V, 8.2 V, 12 V). Switches or sockets for configuring the circuit in forward or reverse bias. Protective current-limiting resistor and necessary connections for circuit flexibility. Working Principle Forward Bias: The Zener diode behaves like a regular p-n junction diode, conducting when the forward voltage exceeds its knee (typically 0.7 V for silicon). Reverse Bias: When the reverse voltage surpasses the Zener voltage (breakdown voltage), the diode starts conducting in reverse without damage. This creates a region of nearly constant voltage across the diode, regardless of further increases in current—ideal for voltage regulation applications. Typical Experimental Procedure Configure the circuit for either forward or reverse bias using patch cords and switches. Gradually increase the DC supply voltage while observing and recording the voltage across and current through the diode. In reverse bias, note the voltage at which sudden current conduction starts—the Zener breakdown voltage. Plot V-I characteristics curves for both bias directions to analyze diode behavior. This apparatus is widely used to demonstrate the unique breakdown properties of Zener diodes, making it an essential tool for electronics and physics laboratories studying voltage regulation and protection concepts.

Model No. N-EL033

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