Nexperia USA Inc. HPZR-C26X

Overview

HPZR-C26X from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, designed for precision DC voltage clamping and regulation at 26 V nominal working voltage (V_Z = 24.4–26.9 V @ I_Z = 1 mA), with 4.1 W total power dissipation at T_sp = 75 °C and 30 kV ESD rating per IEC 61000-4-2 (contact discharge), used in industrial power supply rail protection and overvoltage suppression circuits.

For engineers reviewing the HPZR-C26X datasheet, HPZR-C26X pinout, HPZR-C26X application, or HPZR-C26X equivalent, this page delivers verified thermal resistance (R_th(j-sp) = 18 K/W), differential impedance (R_Z = 22 Ω @ I_Z = 20 mA), non-repetitive peak power (800 W @ t_p ≤ 100 µs), forward voltage (V_F ≤ 1 V @ I_F = 100 mA), and reverse leakage (I_R ≤ 0.1 µA @ V_R = 20.9 V) - all confirmed from Nexperia's Rev. 5 product data sheet.

Technical Context

This device operates as a two-terminal silicon Zener diode with sharp reverse breakdown characteristics, optimized for stable voltage reference and transient overvoltage clamping in low-current regulation functions. Its CFP3 package enables high thermal efficiency via direct cathode tab soldering to PCB copper, achieving R_th(j-sp) = 18 K/W when soldered at the cathode pad.

The HPZR-C26X exhibits tight 5 % V_Z tolerance (24.4–26.9 V), low dynamic impedance (22 Ω), and robust ESD immunity (30 kV contact discharge), making it suitable for environments requiring reliable voltage stabilization under surge stress without external bias circuitry.

Key Specifications

Pinout & Package

HPZR-C26X uses the CFP3 (SOD123W) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, cathode marked by a bar on the top surface. Thermal performance relies on cathode tab soldering to ≥1 cm² copper area on FR4 PCB.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C27 and 1N4749A, HPZR-C26X uniquely combines 26 V precision, 4.1 W power handling, 30 kV ESD immunity, and SOD123W thermal efficiency - enabling single-device replacement of multi-component clamping networks in high-reliability 24 V systems.

Availability

HPZR-C26X is available at Aetrix Electronics and suitable for industrial power rail protection, telecom surge suppression, automated test equipment reference clamping, and medical sensor signal conditioning requiring stable component supply with full traceability and lifecycle continuity.

Supply support for HPZR-C26X 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 semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-performance, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.

The HPZR series belongs to Nexperia's high-power Zener regulator portfolio, engineered specifically for robust, low-profile voltage clamping in space- and thermally constrained SMT applications where traditional through-hole Zeners fall short.

FAQ

What is the exact V_Z range and test condition for HPZR-C26X?

The HPZR-C26X has a guaranteed working voltage range of 24.4 V to 26.9 V, measured at I_Z = 1 mA and T_j = 25 °C, per Table 12 of the Nexperia Rev. 5 datasheet. This 5 % tolerance band ensures predictable clamping behavior in 24 V system protection designs without binning or calibration.

Can HPZR-C26X replace standard 1N47xx Zeners in existing layouts?

No - HPZR-C26X uses the CFP3 (SOD123W) package (2.6 mm × 1.7 mm), which differs mechanically and thermally from the DO-41 package of 1N47xx devices. Direct replacement requires PCB footprint redesign and thermal pad implementation to achieve its 4.1 W rating; electrical substitution alone risks thermal runaway.

How does the 30 kV ESD rating translate to real-world board-level protection?

The 30 kV rating is measured per IEC 61000-4-2 contact discharge at the cathode solder point, meaning the device itself withstands direct ESD strikes without degradation. However, board-level protection also depends on layout: short traces, ground plane coupling, and series impedance upstream determine whether the full 30 kV energy reaches the diode.

What is the maximum allowable ambient temperature for continuous 4.1 W operation?

HPZR-C26X cannot sustain 4.1 W at ambient temperatures above 25 °C without derating. Its P_tot drops linearly with rising T_amb; at T_amb = 75 °C, maximum continuous dissipation falls to ~1.8 W (per Fig. 9). Full 4.1 W requires T_sp = 75 °C - achieved only with proper cathode thermal pad design on FR4 PCB.