6.2V 400mW Zener Diode

Description

The 6.2V 400mW Zener Diode, manufactured by CDIL (Continental Device India Limited), is a highly reliable discrete semiconductor designed for precise voltage regulation and circuit protection. While standard diodes block reverse current, this Zener diode is specifically designed to safely conduct in reverse once the applied voltage hits its 6.2V breakdown threshold, effectively clamping the voltage and preventing it from rising further.

Available at Tomson Electronics, this 6.2V Zener is capable of dissipating up to 400mW of power. Zener diodes in the 5V to 6V range are particularly prized by hardware engineers because they exhibit an extremely low temperature coefficient. This means the 6.2V reference voltage remains incredibly stable even if the ambient temperature of your enclosure fluctuates, making it perfect for precision analog circuits and sensor reference nodes.

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Specifications

• Manufacturer: CDIL (Continental Device India Limited)
• Diode Type: Zener Diode
• Zener Voltage (Vz): 6.2V (Typical)
• Power Dissipation (Pd): 400 mW (0.4W)
• Package Type: DO-35 (Standard Glass Axial Through-hole)
• Polarity: Marked with a cathode band
• Operating Temperature Range: -65°C to +200°C

Datasheet

Download 6.2V 400mW Zener Diode (CDIL) Datasheet PDF

Applications

• Temperature-Stable References: Serving as a highly accurate voltage reference point for analog-to-digital converters (ADCs) and op-amps due to its near-zero temperature drift.
• Voltage Regulation: Providing a stable 6.2V DC output from a higher, unregulated DC power supply when paired with a series current-limiting resistor.
• Logic Protection: Clamping voltage spikes to safely protect 5V logic inputs on microcontrollers and ICs from dangerous overvoltage conditions.
• Waveform Clipping: Shaping analog signals and clipping AC waveforms in function generators and audio circuits.

Frequently Asked Questions (FAQ)

Q: Why is a 6.2V Zener considered better for reference voltages than a 12V Zener?
A: Zener diodes operate using two different phenomena: the Zener effect (which has a negative temperature coefficient) and the Avalanche effect (which has a positive temperature coefficient). Right around 5V to 6.2V, these two effects cross over and cancel each other out. As a result, a 6.2V Zener diode's voltage will hardly drift at all when it gets hot or cold.

Q: How do I wire this Zener diode in my circuit?
A: To use it as a voltage regulator or clamp, you must install it in reverse bias. Connect the cathode (the side with the black band) to the positive voltage line, and the anode to ground. If installed forwards, it will act like a standard diode and drop only about 0.7V.

Q: Do I need a resistor to use this diode?
A: Yes. Once the diode hits its 6.2V breakdown, its internal resistance drops drastically. You must place a series resistor between your power source and the Zener to limit the current, otherwise the diode will draw too much power, exceed its 400mW limit, and be destroyed.

Package Includes

• 1 × 6.2V 400mW Zener Diode (CDIL)