Nexperia USA Inc. HPZR-C6V7X

Overview

HPZR-C6V7X from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, designed for precision DC voltage clamping and regulation at 6.7 V nominal working voltage with ±5 % tolerance. It delivers 4.1 W total power dissipation at T_sp = 75 °C, supports 400 mA forward current, and features 30 kV ESD rating per IEC 61000-4-2 (contact discharge), making it suitable for industrial power supply rail protection and overvoltage suppression in compact SMD designs.

For engineers reviewing the HPZR-C6V7X datasheet, HPZR-C6V7X pinout, HPZR-C6V7X application, or HPZR-C6V7X equivalent, key selection criteria include its 6.4–7.0 V Zener voltage range at I_Z = 10 mA, 400 μA max reverse current at V_R, 42.4 Ω differential resistance at I_Z = 20 mA, and thermal resistance of 18 K/W from junction to solder point - all critical for stable low-current regulation under thermal stress.

Technical Context

This device operates as a two-terminal, silicon planar Zener diode optimized for stable reverse-bias voltage regulation. Its electrical behavior is defined by sharp knee characteristics at 6.7 V, with tight 5 % tolerance and low dynamic impedance (42.4 Ω) ensuring minimal output voltage drift under load variation.

Thermally, it leverages the CFP3 package's low-profile copper cathode tab to achieve R_th(j-sp) = 18 K/W, enabling efficient heat transfer to PCB copper pads. The 30 kV ESD rating is validated at the cathode soldering point, supporting robust handling in automated assembly environments without additional protection circuitry.

Key Specifications

Pinout & Package

HPZR-C6V7X 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 direct copper pad contact via the cathode tab.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C6V8 and 1N4735A, HPZR-C6V7X uniquely combines high-power SMD packaging, industry-leading 30 kV ESD immunity, and Zener voltage matching within ±0.3 V of both alternatives-enabling single-source upgrades in space-constrained, high-reliability industrial systems without redesigning thermal or layout architecture.

Availability

HPZR-C6V7X is available at Aetrix Electronics and suitable for industrial power supply protection, automotive BCM clamping, consumer appliance motor driver feedback, and IoT sensor node voltage reference requiring stable component supply with full traceability and lifecycle continuity.

Supply support for HPZR-C6V7X 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, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.

The HPZR series belongs to Nexperia's high-power Zener diode product line, engineered specifically for robust, low-profile voltage regulation in thermally demanding SMD applications where traditional axial or larger SMD packages cannot fit.

FAQ

What is the maximum continuous reverse power this diode can handle at 75 °C?

HPZR-C6V7X sustains 4100 mW (4.1 W) of total power dissipation at solder point temperature (T_sp) = 75 °C with zero lead length, as measured per IEC 60134 absolute maximum rating methodology. This value assumes direct thermal coupling to a 1 cm² copper pad on FR4 PCB; derating is required above 75 °C per Fig. 9 in the datasheet.

Does the 30 kV ESD rating apply to both terminals or only the cathode?

The 30 kV ESD rating per IEC 61000-4-2 (contact discharge) is explicitly validated at the cathode soldering point, as stated in Table 6 and footnote [2]. The anode has no specified ESD rating; system-level ESD protection must be implemented on anode-connected lines if exposed.

Can HPZR-C6V7X be used in forward conduction mode, and what is its safe operating current?

Yes - HPZR-C6V7X supports forward conduction up to 400 mA DC (IF max), with VF ≤ 1.0 V at 100 mA. For continuous forward operation, thermal limits require mounting on ≥1 cm² cathode copper pad; pulse operation (tp ≤ 300 μs) allows higher peak currents per Fig. 1.

How does the Zener voltage tolerance affect regulation accuracy in a 6.7 V rail?

With a guaranteed V_Z range of 6.4 V to 7.0 V at I_Z = 10 mA, the worst-case regulation deviation is ±0.3 V (±4.5 %) from nominal. At typical operating current (20 mA), R_Z = 42.4 Ω adds ≤0.85 V additional drop under 20 mA load change - total error remains within ±1.15 V for most non-precision applications.