39V 50W Stud Mount Zener Diode – Reverse Polarity

Reliable Voltage Regulation with the NTE5271AK Zener Diode

The NTE5271AK is a high-power 39.0 volt, 50 watt zener diode engineered for precision voltage regulation in demanding electronic applications. Designed with a stud mount DO-5 package, this diode offers both robust mechanical stability and enhanced thermal conductivity, making it ideal for critical power supply circuits and overvoltage protection where reliability is paramount.

Key Specifications and Features

• Nominal Zener Voltage: 39.0V
• Power Dissipation: 50W
• Mounting Style: Stud mount (reverse polarity, cathode to stud)
• Case Style: DO-5 metal case
• Included Quantity: 1 per package

Usage Instructions & Application Guidance

The NTE5271AK zener diode is designed for applications demanding stable voltage reference or efficient voltage clamping at 39V nominal. The stud mount construction requires secure fastening to an appropriate heat sink for optimal thermal management during high-power operation. For correct orientation, ensure the cathode is connected to the stud, in accordance with the reverse polarity specification.

Typical uses include precision power supply regulation, voltage limiting for electronic equipment, and circuit protection where accurate clamping is essential. Incorporate this diode in designs up to its maximum rating of 50 watts dissipation for consistent long-term performance.

This part is the equivalent replacement for the following:

1N3327AR, 1N3327BR, 1N3327R, 1N3327RA, 1N3327RB, 50T39R, 50T39RA, 50T39RB, BZY93C39 (Minor mechanical difference exists, but device will fit most applications.), ECG5271AK, ECG5271K, HZ50V39R, NTE5271AK, SK573, SK573/5271AK, TM5271AK, WEP3327R