3.9V 10W Zener Diode – Reverse Polarity Stud Mount

Reliable Voltage Regulation for Demanding Applications

The NTE5174AK is a high-performance 3.9-volt, 10-watt Zener diode engineered for stable voltage regulation and robust overvoltage protection. Designed for demanding environments, this stud-mount Zener diode is ideal for power supplies, industrial control systems, and precision electronic circuits where consistent nominal voltage regulation is critical.

Technical Specifications

• Zener (Regulating) Voltage: 3.9V (nominal)
• Power Dissipation: 10W
• Package: Stud mount (DO-4 style)
• Polarity: Reverse polarity (cathode to stud)
• Quantity Per Package: 1
• Manufacturer Part Number: NTE5174AK

Stud Mount Design for Optimal Heat Dissipation

This Zener diode features a robust DO-4 stud-mount package to maximize heat dissipation during operation. The reverse polarity configuration—with the cathode connected to the stud—ensures compatibility with a wide range of circuit requirements. This design supports reliable thermal management and long-term stability in high-power applications.

Applications

• Voltage regulation and reference circuits
• Overvoltage and surge protection systems
• Industrial power supplies and controls
• Custom electronic assemblies requiring precise voltage control

Usage and Integration

For best results, mount the NTE5174AK securely using the threaded stud for effective thermal contact with a suitable heat sink or chassis. Ensure correct orientation (cathode to stud) during installation. The 3.9V nominal regulating voltage provides a reliable and repeatable reference point for critical circuit designs.

This part is the equivalent replacement for the following:

001-023010, 134882137804, 1N1588, 1N1588A, 1N1599, 1N1599A, 1N3993, 1N3993A, 1S1424R, 1S2045(STUD), 1S2283(STUD), 37H04, 3Z3.9T5, 48-82137H04, 561-2589-930, ECG5174AK, ECG5174K, HEP-Z3500, HEPZ3500, NTE5174AK, SK115, SK115/5174AK, TM5174AK, Z3500(HEP), Z3B3.9