Nexperia USA Inc. PZU84-B6V2R

Overview

PZU84-B6V2R from Nexperia is a general-purpose Zener voltage regulator diode in SOT23 package, providing precise 6.2 V nominal regulation at 5 mA with ±2 % tolerance, 80 Ω differential resistance, and 0.4 mV/K temperature coefficient - used for low-power voltage reference and overvoltage protection in power supply feedback loops.

For engineers reviewing the PZU84-B6V2R datasheet, PZU84-B6V2R pinout, PZU84-B6V2R application, or PZU84-B6V2R equivalent, this page delivers verified electrical specs, terminal roles, real-world use cases, and validated alternatives for stable 6.2 V regulation in space-constrained designs.

Technical Context

This Zener diode operates in reverse breakdown mode with hard knee characteristics, optimized for low-current regulation (IZ = 0.5 mA to 5 mA) and minimal leakage (IR ≤ 0.5 μA at VR = 4.96 V). Its 80 Ω dynamic impedance at 5 mA ensures stable output under varying load conditions.

The device features a positive temperature coefficient of +0.4 mV/K at 6.2 V, enabling predictable thermal drift compensation in reference circuits. It is rated for 250 mW continuous dissipation on FR4 PCB and withstands 40 W non-repetitive surge pulses (tp = 100 μs).

Key Specifications

Pinout & Package

SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), thermally optimized with cathode tab solder point (Rth(j–sp) = 330 K/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Compared with PZU84-B6V2R, BZX84-C6V2 trades tighter tolerance and lower impedance for lower cost, while MMSZ4687 demands higher operating current and offers inferior low-current leakage performance - making PZU84-B6V2R optimal for precision, low-power, and thermally stable 6.2 V references.

Availability

PZU84-B6V2R is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and low-power sensor biasing requiring stable component supply, consistent parametric performance, and long-term obsolescence management.

Supply support for PZU84-B6V2R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The PZU84 series belongs to Nexperia's general-purpose Zener diode product line, engineered for accurate, low-leakage voltage regulation in compact SMT packages across broad industrial temperature ranges.

FAQ

What is the maximum continuous reverse power dissipation for PZU84-B6V2R?

The maximum continuous reverse power dissipation is 250 mW at Tamb = 25 °C on a standard FR4 PCB with single-sided 70 μm copper. Derating is required above 25 °C per the Rth(j–a) = 500 K/W thermal resistance - e.g., 125 mW at 125 °C ambient.

Does PZU84-B6V2R have a connected pin 2?

No, pin 2 is internally not connected (n.c.). It serves no electrical function and must remain unconnected in PCB layout and schematic symbol to avoid unintended parasitic coupling or solder bridging.

How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?

With a +0.4 mV/K coefficient, PZU84-B6V2R exhibits ~34 mV total drift over 85 K span (−40 °C to +125 °C), corresponding to ±0.55 % change from 6.2 V nominal - acceptable for non-critical references but requires compensation in high-accuracy systems.

Can PZU84-B6V2R replace a 6.2 V Zener in a TL431-based shunt regulator?

Yes, it can serve as the reference element in place of discrete Zeners, but requires verifying that its 80 Ω dynamic impedance and 0.5 μA leakage meet the TL431's bias current and stability requirements - especially at light loads where leakage dominates.