Nexperia USA Inc. HPZR-C11X

Overview

HPZR-C11X from Nexperia is a high-power Zener voltage regulator diode in CFP3 (SOD123W) package, designed for precision DC voltage clamping and regulation at nominal 11 V with ±5 % tolerance. It delivers 4.1 W total power dissipation at T_sp = 75 °C, supports 5 μA max reverse current at V_R = 9.0 V, and exhibits 19.61 Ω differential resistance at I_Z = 20 mA - enabling stable regulation in low-current power supply rails and protection circuits.

For engineers reviewing the HPZR-C11X datasheet, HPZR-C11X pinout, HPZR-C11X application, or HPZR-C11X equivalent, this page provides verified specifications including thermal resistance (R_th(j-sp) = 18 K/W), non-repetitive peak power (800 W), ESD rating (30 kV contact), forward voltage (≤1 V @ 100 mA), and mounting-specific power derating curves - all critical for surge-tolerant, space-constrained SMD designs.

Technical Context

This device operates as a two-terminal, silicon planar Zener diode optimized for stable reverse-bias voltage regulation under transient and steady-state conditions. Its 11 V nominal Zener voltage is specified at I_Z = 20 mA, with tight 10.00–11.10 V min/max range and low 5 μA reverse leakage at rated VR.

The CFP3 package enables low thermal resistance to solder point (18 K/W), supporting high pulsed power handling (800 W @ t_p ≤ 100 µs) while maintaining compact 2.6 mm × 1.7 mm footprint. ESD robustness meets IEC 61000-4-2 Level 4 (30 kV contact discharge), with cathode tab serving as primary thermal and electrical interface.

Key Specifications

Pinout & Package

HPZR-C11X uses the CFP3 (SOD123W) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, cathode marked by bar on top surface. Thermal performance relies on cathode tab soldering to ≥1 cm² copper pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C11 and PZU11B2, HPZR-C11X uniquely combines 4.1 W power handling, 19.61 Ω dynamic impedance, and 30 kV ESD rating in a thermally optimized SMD package - making it the only option for high-energy, space-limited, industrial-grade Zener regulation.

Availability

HPZR-C11X is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB port protection, PLC I/O safeguarding, and automotive BCM power rail clamping requiring stable component supply across extended temperature and surge environments.

Supply support for HPZR-C11X 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

HPZR-C11X belongs to Nexperia's high-power Zener regulator series engineered for robust voltage clamping in harsh environments - emphasizing thermal resilience, ESD immunity, and tight parametric consistency across production lots.

FAQ

What is the maximum continuous power dissipation for HPZR-C11X at 25 °C ambient?

At T_amb ≤ 25 °C on FR4 PCB with single-sided 1 cm² cathode pad, HPZR-C11X sustains 962 mW continuously. This value drops linearly to 4100 mW at T_sp = 75 °C, reflecting its zero-lead-length DC power rating - not ambient-based derating.

Can HPZR-C11X replace standard 1N4740A Zeners in existing designs?

No - HPZR-C11X uses CFP3 (SOD123W) packaging with cathode-tab thermal design, unlike DO-41's axial leads. Its 4.1 W rating requires dedicated PCB copper area (≥1 cm²), and its 19.61 Ω R_Z differs from 1N4740A's ~20 Ω, demanding layout and thermal validation before substitution.

How does the 30 kV ESD rating apply in circuit implementation?

The 30 kV rating applies specifically to contact discharge at the cathode solder point per IEC 61000-4-2. To maintain this performance, the cathode must be directly connected to a low-impedance ground plane without series resistance or ferrite beads - otherwise, ESD energy couples into adjacent traces.

What is the guaranteed Zener voltage range for HPZR-C11X at production test conditions?

HPZR-C11X is tested at I_Z = 20 mA and T_j = 25 °C, guaranteeing V_Z between 10.00 V (min) and 11.10 V (max). This 11 V nominal rating has ±5 % tolerance, confirmed by Table 12 in the datasheet - no binning or sorting is performed beyond this specification.