NXP BZT52H-B8V2 Zener Diode: Key Features, Applications, and Technical Specifications
The NXP BZT52H-B8V2 is a popular surface-mount Zener diode designed for voltage regulation and protection in a wide range of electronic circuits. Part of the BZT52H series, this component is renowned for its precise voltage regulation, compact SOD-123 package, and high reliability, making it a go-to choice for designers in consumer, industrial, and automotive electronics.
Key Features
This diode boasts several standout characteristics. Its primary feature is a nominal Zener voltage (Vz) of 8.2V with a tight tolerance of ±5%, ensuring consistent and accurate regulation. It is capable of dissipating up to 300 mW of power and can handle a maximum reverse current (Iz) of 5 mA, making it suitable for low-power applications. The device is housed in a very small and lightweight SOD-123 plastic package, ideal for high-density PCB designs. Furthermore, it offers excellent stability and performance over a wide operating temperature range.
Technical Specifications
Zener Voltage (Vz): 8.2 V (@ Iz = 5 mA)
Power Dissipation (Ptot): 300 mW

Forward Voltage (VF): 1.2 V (@ IF = 100 mA)
Tolerance: ±5%
Package: SOD-123
Operating and Storage Temperature Range: -65 °C to +150 °C
Primary Applications
The BZT52H-B8V2 is versatile and finds use in numerous circuit functions. Its most common application is as a shunt voltage regulator in power supplies to maintain a constant output voltage. It is also extensively used for transient and ESD (Electrostatic Discharge) protection, safeguarding sensitive ICs and input ports from voltage spikes. Additionally, it serves as a voltage reference for analog circuits and is often used in waveform clamping applications to limit signal amplitude.
ICGOODFIND Summary
The NXP BZT52H-B8V2 is a highly reliable and efficient solution for precision voltage regulation and circuit protection. Its combination of a stable 8.2V reference, compact form factor, and robust performance makes it an excellent component for modern electronic designs across various industries.
Keywords: Voltage Regulation, ESD Protection, Zener Diode, SOD-123 Package, Circuit Protection
