Nexperia USA Inc. PDZ6.2B-QZ

Overview

PDZ6.2B-Q from Nexperia is a single Zener diode in SOD323 (SC-76) package, designed for low-power voltage regulation at nominal 6.2 V with ±2 % tolerance, 80 Ω max differential resistance at I_Z = 5 mA, 0.5 μA max reverse leakage at V_R = 4.3 V, and AEC-Q101 qualification for automotive use.

For engineers reviewing the PDZ6.2B-Q datasheet, PDZ6.2B-Q pinout, PDZ6.2B-Q application, or PDZ6.2B-Q equivalent, this device supports precision clamping and reference functions in space-constrained automotive ECUs, sensor signal conditioning circuits, and power supply feedback paths where stable 6.2 V regulation under low-current conditions is required.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal working voltage of 6.2 V at I_Z = 5 mA, exhibiting a temperature coefficient of +2.7 mV/K and typical dynamic impedance of 80 Ω. Its hard breakdown knee ensures predictable regulation onset without soft turn-on drift.

Designed for surface-mount applications on FR4 PCBs, it delivers 400 mW total power dissipation at T_amb ≤ 25 °C and maintains junction temperatures up to +150 °C. Thermal resistance from junction to solder point is 130 K/W, enabling reliable operation in thermally constrained automotive modules.

Key Specifications

Pinout & Package

PDZ6.2B-Q uses the SOD323 (SC-76) plastic surface-mounted package: 1.35 mm × 1.65 mm footprint, 0.4 mm nominal height, cathode marked by a bar on the top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX584-C6V2 and MMSZ5234B, PDZ6.2B-Q offers superior voltage accuracy (±2 % vs ±5 %), lower dynamic impedance (80 Ω vs 100 Ω), AEC-Q101 qualification, and optimized thermal performance in the smaller SOD323 package-making it the preferred choice for next-generation automotive electronics requiring compact, high-reliability regulation.

Availability

PDZ6.2B-Q is available at Aetrix Electronics and suitable for automotive body control modules, engine control units, infotainment power sequencing, and ADAS camera bias supplies requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for PDZ6.2B-Q 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 technologies.

PDZ6.2B-Q belongs to the PDZ-B-Q series of AEC-Q101-qualified Zener diodes engineered specifically for automotive voltage regulation, clamping, and reference applications demanding precision, stability, and robustness in harsh environments.

FAQ

What is the maximum reverse current rating for PDZ6.2B-Q?

The non-repetitive peak reverse current (I_ZSM) is 5.5 A at t_p = 100 µs and T_amb = 25 °C. This rating applies to transient overvoltage events such as load dump or ESD pulses, not continuous operation. Continuous Zener current must remain within derated power limits defined by ambient temperature and PCB thermal design.

Does PDZ6.2B-Q require external series resistance in typical regulation circuits?

Yes-a current-limiting resistor is mandatory to set the operating Zener current (typically 1–10 mA). For example, with a 12 V supply and target I_Z = 5 mA, a 1.16 kΩ resistor ensures proper biasing while keeping power dissipation within the 400 mW limit. The resistor value directly affects regulation accuracy and thermal stability.

How does the +2.7 mV/K temperature coefficient affect circuit performance?

The positive temperature coefficient means the Zener voltage increases by approximately 2.7 mV per Kelvin rise in junction temperature. At 125 °C junction temperature, V_Z rises by ~260 mV above its 25 °C value-critical for applications requiring tight voltage stability across temperature, such as sensor references or ADC biasing.

Can PDZ6.2B-Q be used in forward-bias configurations?

Yes-it exhibits a forward voltage of ≤0.9 V at 10 mA, making it suitable for low-drop rectification or polarity protection in low-current paths. However, its primary design intent and characterization are for reverse-bias Zener operation; forward conduction capability is secondary and not optimized for high-current switching.