Nexperia USA Inc. PDZ16B-QZ

Overview

PDZ16B-QZ from Nexperia is a single Zener diode in SOD323 (SC-76) package, designed for precision voltage regulation at 16 V nominal working voltage with ±2 % tolerance, 80 Ω max differential resistance at I_Z = 5 mA, and 0.05 μA max reverse leakage at V_R = 12 V. It supports automotive-grade operation per AEC-Q101 and delivers stable clamping in low-power power supply rails.

For engineers reviewing the PDZ16B-QZ datasheet, PDZ16B-QZ pinout, PDZ16B-QZ application, or PDZ16B-QZ equivalent, this device is selected for its tight voltage tolerance, low dynamic impedance at low currents, hard breakdown knee, and qualification for automotive environments - critical for ECU voltage reference and sensor biasing circuits.

Technical Context

This Zener diode operates in reverse-biased breakdown mode to maintain a stable reference voltage across its terminals. Its 15.85–16.51 V working voltage range (at I_Z = 5 mA), −12.4 mV/K temperature coefficient, and 97 pF capacitance at 1 MHz / 0 V make it suitable for low-noise, low-current regulation where thermal drift and parasitic coupling must be minimized.

Thermal performance is defined by R_th(j-sp) = 130 K/W (junction-to-solder point) and R_th(j-a) = 340 K/W on FR4 PCB, enabling reliable operation up to T_j = +150 °C. The device sustains non-repetitive peak reverse current of 1.5 A (t_p = 100 µs) and continuous power dissipation of 400 mW at T_amb ≤ 25 °C.

Key Specifications

Pinout & Package

SOD323 (SC-76) surface-mount plastic package with 2 leads; cathode indicated by marking bar on body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C16 and MMSZ5245B, PDZ16B-QZ offers tighter ±2 % tolerance, lower 80 Ω dynamic resistance, and AEC-Q101 qualification - making it the sole choice for automotive voltage reference and high-precision industrial biasing where long-term stability and qualification compliance are mandatory.

Availability

PDZ16B-QZ is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and IoT battery-monitoring systems requiring stable component supply with full traceability and lifecycle support.

Supply support for PDZ16B-QZ 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 leading global semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-performance, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.

The PDZ-B-Q series targets automotive-grade Zener regulation with AEC-Q101 qualification, optimized for low-leakage, low-impedance, and thermally robust operation in harsh-environment electronic control units.

FAQ

What is the maximum reverse voltage PDZ16B-QZ can sustain before breakdown?

The PDZ16B-QZ exhibits a specified working voltage range of 15.85–16.51 V at I_Z = 5 mA, with a hard breakdown knee ensuring stable regulation above ~15.5 V. Its absolute maximum non-repetitive peak reverse voltage is not explicitly rated, but the device is designed to operate reliably within its specified V_Z band under continuous DC or pulsed conditions up to 1.5 A (100 µs pulse).

How does the temperature coefficient affect regulation accuracy over automotive temperature ranges?

With a temperature coefficient of −12.4 mV/K at I_Z = 5 mA, PDZ16B-QZ exhibits predictable negative drift: from −40 °C to +125 °C (165 K span), total V_Z shift is approximately −2.05 V. However, combined with its ±2 % initial tolerance (±0.32 V), total error remains bounded and compensatable in closed-loop systems, meeting ASIL-B reference stability requirements.

Can PDZ16B-QZ be used in forward-bias configuration?

Yes - PDZ16B-QZ has a forward voltage of 0.9 V at I_F = 10 mA and 1.1 V at 100 mA, making it usable as a low-drop rectifier or ESD clamp in forward conduction. Its 200 mA continuous forward current rating and 400 mW total power dissipation allow moderate forward-bias duty cycles, though its primary design intent is reverse-bias regulation.

Is the SOD323 package compatible with standard reflow soldering profiles?

Yes - Nexperia specifies a reflow soldering footprint for SOD323 with 0.5 mm pad width, 0.6 mm pad length, and 1.65 mm center-to-center pitch. The device is qualified for JEDEC J-STD-020 moisture sensitivity level 1 (unlimited floor life), and supports peak reflow temperatures up to 260 °C per standard lead-free profiles without degradation of Zener characteristics or package integrity.