Nexperia USA Inc. PDZ6.2BZ

Overview

PDZ6.2BZ from Nexperia is a single silicon Zener diode designed for low-power voltage regulation in space-constrained SMD applications, with a nominal Zener voltage of 6.2 V at 5 mA, ±2 % tolerance, 80 Ω maximum differential resistance at 0.5 mA, 0.5 μA maximum reverse current at 4.96 V, and 3.0 mV/K temperature coefficient - deployed in power supply feedback loops, reference voltage generation, and overvoltage clamping circuits.

For engineers reviewing the PDZ6.2BZ datasheet, PDZ6.2BZ pinout, PDZ6.2BZ application, or PDZ6.2BZ equivalent, this device is selected for precision low-current regulation where thermal stability, low leakage, and hard breakdown knee are critical - especially in battery-powered sensors, analog front-ends, and embedded voltage monitors requiring stable 6.2 V references under varying ambient conditions.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain a stable DC voltage across its terminals when biased above its specified Zener voltage. It exhibits a sharp, hard breakdown knee and low dynamic impedance (80 Ω max at I_Z = 0.5 mA), enabling accurate regulation even at sub-mA currents.

Its temperature coefficient of +2.7 mV/K at I_Z = 5 mA indicates positive drift with junction temperature - a key design consideration when used in unregulated environments. Thermal resistance from junction to solder point is 130 K/W, supporting reliable operation on standard FR4 PCBs with minimal heatsinking.

Key Specifications

Pinout & Package

PDZ6.2BZ is housed in a compact SOD323 (SC-76) surface-mount plastic package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode indicated by a marking 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 BZX384-B6V2 and MMSZ4687, PDZ6.2BZ delivers superior regulation precision and lower leakage in the smallest footprint - making it optimal for modern compact, low-power designs demanding tight voltage control and minimal standby current.

Availability

PDZ6.2BZ is available at Aetrix Electronics and suitable for power supply feedback, reference voltage generation, overvoltage clamping, and ESD protection applications requiring stable component supply, consistent parametric performance, and long-term obsolescence resilience.

Supply support for PDZ6.2BZ 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, logic, and MOSFET solutions - headquartered in Nijmegen, Netherlands, with manufacturing in Europe and Asia.

PDZ6.2BZ belongs to the PDZ-B series of low-power Zener diodes engineered specifically for space-constrained, low-current voltage regulation and clamping in consumer, industrial, and communications equipment.

FAQ

What is the maximum continuous reverse current PDZ6.2BZ can handle without degradation?

The PDZ6.2BZ is rated for a maximum continuous reverse current of 200 mA, derived from its 400 mW total power dissipation limit and 6.33 V maximum Zener voltage (P = V × I → I = 400 mW / 6.33 V ≈ 63 mA). However, its safe operating area is defined by thermal limits: at 25 °C ambient on FR4, it sustains up to ~63 mA continuously; above that, junction temperature rises beyond 150 °C unless derated per the power derating curve.

Can PDZ6.2BZ be used in series or parallel configurations for higher voltage or current capability?

PDZ6.2BZ is not recommended for parallel use due to mismatched Zener voltages causing current hogging and thermal runaway. In series, two devices yield ~12.4 V regulation, but voltage matching tolerance (±2 %) results in up to ±4 % total error, and thermal coupling differences may cause imbalance. For higher voltage or current, dedicated multi-Zener arrays or regulator ICs are preferred.

How does the +2.7 mV/K temperature coefficient affect accuracy in a 0–70 °C operating range?

With a +2.7 mV/K coefficient and 6.2 V nominal Zener voltage, the total drift over a 70 °C span is approximately +189 mV (2.7 mV/K × 70 K). This represents a +3.05 % shift relative to 6.2 V. For applications requiring <±1 % regulation, external compensation (e.g., thermistor network or TC-matched diode) or selection of a zero-TC part like PDZ8.2B (+3.4 mV/K) with opposing circuit drift is necessary.

Is PDZ6.2BZ suitable for automotive applications per AEC-Q200?

No. PDZ6.2BZ is not AEC-Q200 qualified and is explicitly designated as a non-automotive product in Nexperia's legal disclaimers. It lacks automotive-grade screening, extended temperature validation (−40 °C to +125 °C), and failure rate documentation required for automotive use. For automotive voltage reference or clamping, AEC-Q200-compliant alternatives such as BZX84-C6V2 or DZ23C6V2 must be selected.