Nexperia USA Inc. PDZ2.4BGWX

Overview

PDZ2.4BGWX from Nexperia is a single Zener diode in SOD123 package, designed for precision voltage regulation and reference functions at 2.4 V nominal Zener voltage (IZ = 5 mA), ±2 % tolerance (B-series), 50 Ω typical differential resistance, and AEC-Q101 qualification for automotive environments. It operates with low reverse current (IR ≤ 1000 μA at VR = 1.0 V) and supports transient suppression up to 40 W non-repetitive peak power.

For engineers reviewing the PDZ2.4BGWX datasheet, PDZ2.4BGWX pinout, PDZ2.4BGWX application, or PDZ2.4BGWX equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (Rth(j-a) = 340 K/W), cathode/anode polarity marking, and compliance with automotive reliability standards - all critical for ECU power rail clamping and sensor reference circuits.

Technical Context

This Zener diode implements a silicon planar junction structure optimized for stable reverse breakdown at low voltages (2.4 V), with temperature coefficient SZ = −1.6 mV/K at IZ = 5 mA - enabling predictable drift compensation in analog reference designs. Its SOD123 footprint ensures compatibility with high-density PCB layouts while maintaining thermal performance under ambient temperatures from −55 °C to +150 °C.

The device delivers regulated output via controlled avalanche breakdown, with forward voltage VF ≤ 0.9 V at IF = 10 mA and total power dissipation Ptot = 365 mW (FR4, standard footprint). Non-repetitive surge capability (IZSM = 8.0 A, tp = 100 μs) supports ESD and load-dump transient handling in 12 V automotive systems.

Key Specifications

Pinout & Package

SOD123 surface-mount plastic package (3.75 mm × 2.55 mm × 1.3 mm), cathode marked by bar on top surface; optimized for reflow soldering on FR4 PCB with 1 cm² cathode pad for thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C2V4 and MMSZ4678T1G, PDZ2.4BGWX offers tighter tolerance, lower leakage, and certified automotive reliability - making it the preferred choice for safety-critical voltage reference and clamping in ECU and sensor subsystems.

Availability

PDZ2.4BGWX is available at Aetrix Electronics and suitable for automotive ECU design, sensor reference circuits, and infotainment system ESD protection requiring stable component supply and long-term lifecycle assurance.

Supply support for PDZ2.4BGWX 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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.

The PDZ-GW series targets automotive and industrial voltage regulation needs - delivering precision Zener performance in compact SOD123 packages with AEC-Q101 validation and robust thermal characteristics.

FAQ

What is the maximum continuous reverse current rating for PDZ2.4BGWX?

The PDZ2.4BGWX has no specified maximum continuous reverse current; instead, its operation is governed by power dissipation limits. At Tamb ≤ 25 °C on a standard FR4 PCB, total power dissipation must not exceed 365 mW - corresponding to a maximum steady-state reverse current of approximately 152 mA (365 mW ÷ 2.4 V). Derating applies above 25 °C per Rth(j-a) = 340 K/W.

How does the −1.6 mV/K temperature coefficient affect circuit performance?

The negative temperature coefficient means the Zener voltage decreases by 1.6 mV per Kelvin rise in junction temperature. At IZ = 5 mA, this results in ~−0.24 V drift from −40 °C to +125 °C - a 9.2 % change relative to nominal 2.4 V. For stable references, this requires either temperature compensation or operation within narrow ambient ranges.

Can PDZ2.4BGWX be used in parallel for higher power handling?

No - Zener diodes exhibit manufacturing variations in VZ and rdif, causing current imbalance when paralleled. One device will dominate conduction, risking thermal runaway. For higher power, use a single higher-rated Zener (e.g., PDZ3.3BGWX with 500 mW derated layout) or add external ballast resistors - though this degrades regulation accuracy.

Is the SOD123 package compatible with standard reflow profiles?

Yes - Nexperia specifies reflow soldering as the only recommended method. The SOD123 footprint aligns with IPC-7351B medium density standards, and the device supports JEDEC J-STD-020D peak temperatures up to 260 °C for ≤30 seconds. Thermal pad design per Figure 9 (1.11 mm × 3.27 mm cathode pad) ensures reliable joint formation and heat dissipation.