Nexperia USA Inc. PZU16DB2,115

Overview

PZU16DB2,115 from Nexperia is a dual isolated general-purpose Zener diode in SOT353 (SC-88A) package, designed for precision voltage regulation and overvoltage protection in compact surface-mounted circuits. It features a nominal Zener voltage of 16 V (±2 % tolerance), non-repetitive peak reverse power dissipation of 40 W, total power dissipation up to 250 mW, and AEC-Q101 qualification for automotive use.

For engineers reviewing the PZU16DB2,115 datasheet, PZU16DB2,115 pinout, PZU16DB2,115 application, or PZU16DB2,115 equivalent, key selection factors include its dual-diode isolation, halogen-free dark-green plastic packaging, 12 Ω typical differential resistance at I_Z = 5 mA, and suitability for low-power voltage reference and transient suppression in space-constrained PCB layouts.

Technical Context

This dual Zener device integrates two electrically isolated Zener diodes in a single 5-pin SOT353 package, with pins 1 and 5 serving as cathodes for diodes 1 and 2 respectively, and pins 3 and 4 as anodes - enabling independent regulation paths without shared terminals. Pin 2 is internally unconnected, ensuring full functional separation between channels.

It operates across a wide ambient temperature range (−55 °C to +150 °C), supports surge handling per IEC 60134 absolute maximum ratings, and delivers stable 16 V regulation with a temperature coefficient of +12 mV/K at I_Z = 5 mA - indicating positive thermal drift optimized for biasing and reference stability in mixed-signal systems.

Key Specifications

Pinout & Package

SOT353 (SC-88A) is a 5-lead very small outline surface-mount plastic package measuring 2.2 mm × 1.35 mm × 0.95 mm, featuring halogen-free dark-green molding compound and tin-plated terminations compatible with lead-free reflow soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PZU16DB2,115, BZX84-C16LT1G lacks integrated dual isolation and requires additional layout area, while PZU16D2,115 trades ±2 % precision for lower unit cost - making the DB2 variant optimal for automotive and high-accuracy analog systems.

Availability

PZU16DB2,115 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and consumer wearable power management requiring stable component supply with AEC-Q101 assurance and consistent Zener voltage performance.

Supply support for PZU16DB2,115 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on high-volume, high-reliability components for automotive, industrial, and computing markets.

The PZUxDB2 series was developed to deliver AEC-Q101-qualified dual Zener regulation in ultra-compact SOT353 packages - addressing demand for space-efficient, thermally robust voltage references in next-generation automotive ECUs and IoT edge nodes.

FAQ

What is the maximum continuous forward current rating for PZU16DB2,115?

The maximum continuous forward current (I_F) is 200 mA per diode, as specified in the Absolute Maximum Ratings table. This rating applies under ambient temperature ≤25 °C with standard FR4 PCB mounting; derating is required above 25 °C per the thermal resistance curve (R_th(j-a) = 500 K/W).

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

At I_Z = 5 mA, the temperature coefficient is +12 mV/K, meaning V_Z increases by ~12 mV per °C rise. Over −40 °C to +125 °C, this results in ~1.98 V shift - compensated in precision designs using matched resistor networks or active temperature correction algorithms.

Can pin 2 be used as a heatsink or ground connection?

No - pin 2 is internally unconnected and must remain floating on the PCB. Using it as a heatsink or ground introduces parasitic capacitance and risk of internal shorting; thermal management relies solely on pins 4 and 5 (cathodes) per the R_th(j-sp) = 200 K/W specification.

Is the PZU16DB2,115 suitable for bidirectional transient voltage suppression?

No - it is a unidirectional Zener diode pair. Each diode conducts only in reverse breakdown; forward conduction is limited to 1.1 V at 100 mA. For bidirectional TVS protection, a dedicated bidirectional TVS array (e.g., PESD5V0S1BA) is required.