140V 50W Zener Diode – Stud Mount, Reverse Polarity

Reliable High-Power Zener Diode for Voltage Regulation

The NTE5290AK is a high-voltage, high-power Zener diode designed for demanding voltage regulation and surge suppression applications. Featuring a nominal regulating voltage of 140V and a robust 50-watt power dissipation rating, this stud-mount Zener diode offers reliable performance in industrial and commercial electronic systems.

Key Features of the NTE5290AK Zener Diode

• Nominal Zener Voltage: 140V
• Power Dissipation: 50W (Stud Mount)
• Polarity: Reverse (Cathode to Stud)
• Package: DO-5 stud mount for secure mechanical and thermal connection
• Applications: High-voltage regulation, power supply protection, and surge clamping

Technical Information and Usage

This 140V 50W Zener diode is built for stability and reliability in power circuits requiring precise voltage regulation under continuous or pulsed loads. The stud mount package ensures excellent heat dissipation, making it ideal for installation on a heatsink or chassis. For optimal operation, ensure secure mounting and adhere to recommended cooling practices.

The NTE5290AK Zener diode is especially suited to industrial, instrumentation, and high-power circuit designs where consistent voltage regulation and reverse polarity protection are required.

Ordering and Compatibility

Supplied as a single unit per package, the NTE5290AK is a dependable choice for engineers and purchasing managers needing high-capacity, stud-mount Zener diodes for critical applications.

This part is the equivalent replacement for the following:

1N3345R, 1N3345RA, 1N3345RB, ECG5290AK, ECG5290K, HZ50V140R, NTE5290AK, SK611, SK611/5290AK, TM5290AK