Nexperia USA Inc. PZU84-C10R

Overview

PZU84-C10R from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, rated for 10 V nominal breakdown voltage at I_Z = 5 mA, with differential resistance ≤60 Ω, reverse leakage ≤0.1 μA at V_R = 7 V, and total power dissipation of 250 mW - used for precision voltage reference and overvoltage clamping in low-power analog signal conditioning circuits.

For engineers reviewing the PZU84-C10R datasheet, PZU84-C10R pinout, PZU84-C10R application, or PZU84-C10R equivalent, this page delivers verified Zener parameters including V_Z tolerance, r_dif, temperature coefficient, thermal resistance, and SOT23 terminal mapping - critical for stable biasing, ESD protection interface design, and low-current regulation validation.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain a stable 10 V reference across load variations, with a hard breakdown knee and very low leakage current optimized for low-noise analog rails. Its ±2 % V_Z tolerance and −2.0 to +8.0 mV/K temperature coefficient ensure predictable drift under ambient shifts from −55 °C to +150 °C.

The device uses silicon planar technology in a three-terminal SOT23 package where Pin 2 is internally not connected, enabling unambiguous anode (Pin 1) and cathode (Pin 3) routing. Thermal resistance from junction to solder point is 330 K/W, supporting reliable operation up to 150 °C junction temperature under pulsed or continuous DC conditions.

Key Specifications

Pinout & Package

Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), with tin-plated terminations compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C10 and MMSZ5240B, PZU84-C10R delivers tighter tolerance, lower dynamic impedance, and significantly lower leakage - making it uniquely suitable for high-resolution analog references and low-power reset supervision where regulation fidelity directly impacts system accuracy and reliability.

Availability

PZU84-C10R is available at Aetrix Electronics and suitable for precision voltage reference, low-leakage reset supervision, analog bias generation, and ESD clamping applications requiring stable component supply with guaranteed long-term continuity.

Supply support for PZU84-C10R 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 logic, discrete, and MOSFET solutions - delivering energy-efficient, robust components for industrial, automotive, and consumer electronics.

The PZU84 series belongs to Nexperia's precision Zener regulator portfolio, engineered specifically for low-current, low-noise voltage reference and clamping in space-constrained, thermally demanding applications.

FAQ

What is the maximum reverse current specification for PZU84-C10R at 7 V?

The maximum reverse leakage current for PZU84-C10R is 0.1 μA at V_R = 7 V and T_j = 25 °C, as confirmed in Table 8 of the datasheet. This ultra-low leakage is maintained across the full operating temperature range (−55 °C to +150 °C), ensuring consistent performance in battery-powered and high-impedance sensing applications without introducing measurement offset.

Can PZU84-C10R be used in place of a 10 V TL431 shunt regulator?

No - PZU84-C10R is a passive two-terminal Zener diode without internal amplification or adjustable reference capability. Unlike the TL431, it cannot regulate voltage dynamically or sink variable current above its 250 mW limit. It functions only as a fixed-voltage clamp or reference when biased with a series resistor, and lacks the precision, programmability, or current-handling flexibility of active shunt regulators.

Is Pin 2 electrically isolated or internally bonded in the SOT23 package?

Pin 2 is explicitly designated "not connected (n.c.)" in Table 2 and carries no internal bond wire or silicon connection. It is a mechanical stub only - electrically floating and thermally inert. PCB layout must leave Pin 2 unconnected; routing traces or applying solder paste to it may cause mechanical stress or unintended parasitic coupling without functional benefit.

What is the non-repetitive peak reverse power rating and test condition?

PZU84-C10R has a non-repetitive peak reverse power dissipation (P_ZSM) of 40 W, tested under square-wave pulse conditions: t_p = 100 μs, with junction temperature at 25 °C prior to surge. This rating supports transient suppression in ESD and lightning surge scenarios but does not imply continuous operation - sustained power must remain ≤250 mW per derating curves in the datasheet.