1N4738A Zener Diode – 8.2V 1W ±5% DO-41 (2-Pack)

The 1N4738A is an 8.2V silicon Zener diode for voltage regulation, voltage reference, and circuit protection applications. It features ±5% Zener voltage tolerance and a maximum power dissipation of 1W under specified conditions.

Its compact DO-41 axial-lead package supports through-hole mounting for electronic repairs, power supply circuits, prototyping, and DIY electronics projects. Each pack contains two diodes.

Key Features

• 8.2V nominal Zener voltage
• 1W maximum power dissipation under specified conditions
• ±5% Zener voltage tolerance
• Designed for voltage regulation and reference applications
• DO-41 axial-lead package for through-hole mounting
• Cathode identified by a band

Technical Specifications

• Part number: 1N4738A
• Diode type: Silicon Zener
• Nominal Zener voltage: 8.2V
• Voltage tolerance: ±5%
• Maximum power dissipation: 1W under specified conditions
• Zener test current: 31mA
• Maximum Zener impedance: 4.5Ω at test current
• Package: DO-41 (DO-204AL)
• Mounting type: Through-hole
• Lead configuration: Axial
• Polarity: Cathode marked with a band
• Quantity: 2 diodes

Common Applications

• Voltage regulation and reference circuits
• Power supply stabilization
• Voltage limiting and protection
• Electronic equipment repairs
• DIY electronics projects

Package includes: 2 × 1N4738A Zener diodes.