1N4738A 8.2V Zener Diode

8.40

The 1N4738A is an 8.2V Zener diode designed for voltage regulation in electronic circuits. With a power dissipation of 1 watt and excellent voltage stability, it is ideal for maintaining steady voltage levels. It is widely used in power supply and protection circuits.

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Description

The 1N4738A Zener diode provides a regulated output of 8.2V, making it perfect for voltage regulation and protection in electronic circuits. With a power dissipation rating of 1 watt and a tolerance of ±5%, it ensures consistent voltage stability. This diode operates in reverse bias mode, allowing it to maintain a fixed voltage when the applied voltage exceeds its breakdown voltage. It is ideal for power supply regulation, surge protection, and voltage reference in a variety of applications, including consumer electronics, industrial equipment, and communication systems.

Key Features

  1. Voltage Regulation: Offers precise 8.2V regulation for stable circuit performance.
  2. 1 Watt Power Dissipation: Capable of handling moderate power levels without overheating.
  3. ±5% Voltage Tolerance: Provides consistent voltage output with minimal variation.
  4. Reverse Bias Operation: Functions effectively in reverse bias mode for reliable voltage clamping.
  5. Compact Design: Small form factor suitable for space-constrained circuit designs.

Precautions

  1. Avoid Exceeding Power Rating: Ensure that the power dissipation does not exceed 1 watt to prevent diode failure.
  2. Proper Heat Management: Use heat sinks or proper ventilation to avoid overheating during operation.
  3. Correct Polarity: Ensure correct orientation with anode and cathode connections to prevent reverse current flow.
  4. Surge Protection: Implement protection measures to prevent damage from voltage spikes or surges.
  5. Avoid Overcurrent: Use current-limiting resistors to prevent excessive current from damaging the diode.

Frequently Asked Questions (FAQs)

Question: What is the main application of the 1N4738A Zener diode?
Answer: The 1N4738A is primarily used for voltage regulation and protection in various electronic circuits, ensuring consistent output voltage.

Question: What is the power dissipation rating of the 1N4738A diode?
Answer: The diode has a power dissipation rating of 1 watt, allowing it to handle moderate power levels without overheating.

Question: Can the 1N4738A Zener diode handle voltage spikes?
Answer: Yes, it can clamp excess voltage in reverse bias mode, making it suitable for protecting circuits from voltage spikes.

Question: What is the tolerance level of the 1N4738A Zener diode?
Answer: The 1N4738A has a voltage tolerance of ±5%, ensuring stable and reliable performance in circuits.

Question: How should I manage heat dissipation when using the 1N4738A?
Answer: Proper heat management, such as using heat sinks or ensuring adequate ventilation, is essential to prevent the diode from overheating during operation.

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