45V 10W Stud Mount Zener Diode Reverse Polarity

High-Reliability Voltage Regulation for Demanding Applications

The NTE5207AK is a 45.0V, 10 Watt Zener diode engineered for precision voltage regulation in power supply, industrial, and instrumentation circuits. With a robust stud mount (DO-4) package and a reverse polarity (cathode-to-case) configuration, this diode delivers stable performance and is designed for environments where dependable surge and overvoltage protection are essential.

Key Specifications

• Nominal Regulating Voltage (Vz): 45.0 Volts
• Power Dissipation (Pd): 10 Watts
• Polarity: Reverse (case = cathode)
• Package Type: DO-4 stud mount for secure, high-reliability installation
• Quantity Per Package: 1

Performance & Application

This 45V 10W Zener diode provides tight voltage regulation and is suited for use in series voltage reference, overvoltage suppression, or ballast circuits. Its stud mount design offers superior heat dissipation, making it ideal for high-current, high-power installations. The reverse polarity allows for flexibility in circuit layout, especially in negative voltage regulation or unique power supply configurations.

Usage & Installation

• Mount diode securely to a suitable heatsink or chassis to maximize thermal management and ensure reliable operation at full rated power.
• Observe the polarity: case is cathode (reverse direction) for proper circuit integration.
• Integrate as a reference element, protection device, or voltage regulator in applications requiring precision and durability.

For further technical information or integration support, please consult our technical support team.

This part is the equivalent replacement for the following:

1N2994AR, 1N2994BR, 1N2994R, 1N2994RA, 1N2994RB, ECG5207AK, ECG5207K, NTE5207AK, SK181, SK181/5207AK, TM5207AK