NXP BZX84-A13 Zener Diode: Key Features, Applications, and Technical Specifications

The NXP BZX84-A13 is a widely used surface-mount Zener diode designed for voltage regulation and protection in a vast array of electronic circuits. As part of the popular BZX84 series, this component is essential for designers seeking reliable performance in a compact SOT23 package.

Key Features

The BZX84-A13 distinguishes itself through several critical attributes:

Precision Voltage Regulation: It offers a nominal Zener voltage (Vz) of 13V with a tight tolerance of ±5%, ensuring stable and accurate reference voltage.

Compact SMD Package: Housed in a SOT23 package, it is ideal for high-density PCB designs, saving valuable board space.

Low Power Dissipation: With a power dissipation of 250 mW, it is suitable for low-power applications, helping to manage thermal budgets.

Excellent Stability: The device provides consistent performance over a wide range of operating temperatures and currents.

Technical Specifications

A detailed look at its specifications provides clarity for circuit design:

Zener Voltage (Vz): 13 V @ Izt = 5 mA

Zener Impedance (Zzt): 20 Ω (max)

Reverse Leakage Current (IR): 100 nA (max) @ Vr = 10 V

Maximum Power Dissipation (Ptot): 250 mW

Operating Junction Temperature (Tj): -65°C to +150°C

Primary Applications

The BZX84-A13 is versatile and finds its place in numerous circuit functions:

Voltage Regulation: It is primarily used as a shunt regulator in power supplies to clamp and stabilize voltage levels for sensitive components.

Overvoltage Protection: It serves as a protective device for integrated circuits (ICs) and transistors, diverting excess voltage to ground and preventing damage.

Signal Clipping and Clamping: In waveform shaping circuits, it is used to clip or limit signal peaks to desired levels.

Voltage Reference: Its stable characteristics make it suitable for providing a precise reference voltage in analog-to-digital converters (ADCs) and sensor modules.

ICGOODFIND Summary

The NXP BZX84-A13 is a highly reliable and efficient solution for voltage stabilization and circuit protection in space-constrained designs. Its combination of a precise 13V breakdown, compact SMD form factor, and robust performance makes it a fundamental component for both consumer and industrial electronics, from portable devices to power management systems.

Keywords: Zener Diode, Voltage Regulation, Overvoltage Protection, SOT23 Package, 13V Reference