Nexperia USA Inc. PDZ16B,115

Overview

PDZ16B,115 from Nexperia is a single low-power 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 delivers stable clamping in low-current bias circuits, power supply reference rails, and overvoltage protection stages.

For engineers reviewing the PDZ16B,115 datasheet, PDZ16B,115 pinout, PDZ16B,115 application, or PDZ16B,115 equivalent, key selection criteria include Zener voltage accuracy, dynamic impedance at operating current, thermal resistance (R_th(j-a) = 340 K/W), cathode-anode polarity marking, and SOD323 footprint compatibility with reflow soldering profiles.

Technical Context

This Zener diode operates in reverse breakdown mode with a hard knee characteristic, enabling sharp voltage regulation onset at low test currents (I_Z = 5 mA). Its temperature coefficient is +12.4 mV/K, indicating positive drift with junction temperature rise - critical for stability in ambient-variable environments.

The device exhibits low capacitance (97 pF at f = 1 MHz, V_R = 0 V) and supports non-repetitive surge currents up to 1.5 A (t_p = 100 μs), making it suitable for transient suppression in signal-level circuits without introducing excessive parasitic loading.

Key Specifications

Pinout & Package

PDZ16B,115 uses the SOD323 (SC-76) surface-mount plastic package: 1.35–1.6 mm length, 0.8–1.1 mm width, 0.4–0.45 mm height, with cathode indicated by a visible marking bar on the body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX55C16-TR and MMSZ5245B, PDZ16B,115 uniquely combines 16 V nominal Zener voltage, SOD323 miniaturization, 80 Ω dynamic impedance, and 0.05 μA leakage - making it optimal for compact, low-power, precision-regulated embedded subsystems.

Availability

PDZ16B,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB port protection circuits, and low-power IoT node voltage references requiring stable component supply and consistent parametric performance across production batches.

Supply support for PDZ16B,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 leading global semiconductor company headquartered in Nijmegen, Netherlands, specializing in high-volume production of discrete, logic, and MOSFET devices with emphasis on reliability and energy efficiency.

PDZ16B,115 belongs to the PDZ-B series of low-power Zener diodes engineered for general-purpose voltage regulation in space-constrained, low-current applications - prioritizing tight tolerance, low leakage, and robust SMD manufacturability.

FAQ

What is the maximum continuous reverse current the PDZ16B,115 can sustain without degradation?

The PDZ16B,115 is rated for continuous Zener current up to 200 mA (I_F limit), but its practical regulation current is constrained by thermal limits: at 25 °C ambient on FR4 PCB, 400 mW power dissipation allows ~25 mA at 16 V before exceeding junction temperature limits. Derating is required above 25 °C per the 340 K/W R_th(j-a).

How does the +12.4 mV/K temperature coefficient affect long-term voltage reference stability?

A +12.4 mV/K coefficient means V_Z increases by ~12.4 mV per 1 K rise in junction temperature. Over a 100 °C range (−40 °C to +60 °C ambient, assuming ΔT_j-amb ≈ 30 °C), this introduces ~370 mV drift - requiring thermal shielding or compensation in metrology-grade references, but acceptable for non-critical biasing.

Can PDZ16B,115 be used in bidirectional ESD protection configurations?

No - PDZ16B,115 is a unidirectional Zener diode with defined cathode/anode polarity. For bidirectional ESD protection, two devices must be connected anode-to-anode (or cathode-to-cathode) in series, or a dedicated bidirectional TVS like PESD5V0S1BA should be selected instead.

Is the SOD323 footprint compatible with standard reflow soldering profiles for lead-free assembly?

Yes - Nexperia specifies a reflow footprint with 0.5 mm solder land width and 0.6 mm solder resist opening per pad (Fig. 9), fully compliant with IPC-7351 Class B for SOD323. Peak temperatures up to 260 °C are supported, matching JEDEC J-STD-020D.3 requirements for lead-free processes.