Nexperia USA Inc. NZH5V6B,115

Overview

NZH5V6B,115 from Nexperia is a single Zener diode in SOD123F package, designed for precision voltage regulation and overvoltage protection in low-power circuits. It delivers a nominal Zener voltage of 5.6 V at 20 mA, with differential resistance ≤500 Ω, reverse current ≤5 μA at 2.5 V, and total power dissipation up to 500 mW (FR4 PCB) or 1 W (ceramic PCB). It is AEC-Q101 qualified for automotive load-dump suppression and ECU reference stabilization.

For engineers reviewing the NZH5V6B,115 datasheet, NZH5V6B,115 pinout, NZH5V6B,115 application, or NZH5V6B,115 equivalent, key selection criteria include Zener voltage tolerance (±5.7% at 20 mA), thermal resistance (250 K/W on FR4), cathode-anode polarity marking, and SOD123F footprint compatibility with automated reflow assembly.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its low differential resistance (13 Ω typical at I_Z = 20 mA) ensures minimal output voltage drift across current changes, while its 5 μA maximum reverse leakage at VR = 2.5 V supports low-quiescent-current bias networks.

The device is characterized at T_j = 25 °C with specified limits across ambient temperatures from −55 °C to +150 °C and junction temperature up to 150 °C. Its SOD123F package enables surface-mount integration with defined thermal resistance to ambient (250 K/W) and to solder point (125 K/W), critical for thermal design in compact automotive modules.

Key Specifications

Pinout & Package

SOD123F is a 2-lead surface-mount plastic package measuring 3.6 mm × 1.7 mm × 1.0 mm (L × W × H), with gull-wing leads and cathode marked by a bar on the body. Thermal pad design supports reflow soldering only, per Nexperia's recommended footprint (2.9 mm × 1.6 mm occupied area).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C5V6,215 and MMSZ5232BS-7-F, NZH5V6B,115 provides superior thermal performance on FR4 (250 vs. 300 K/W), tighter V_Z spread (±2.5% vs. ±5%), and full AEC-Q101 validation-making it the only option qualified for powertrain voltage references and safety-related clamping functions.

Availability

NZH5V6B,115 is available at Aetrix Electronics and suitable for automotive ECU reference, industrial sensor biasing, and USB port overvoltage clamp applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant traceability.

Supply support for NZH5V6B,115 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 headquartered in Nijmegen, Netherlands, specializing in high-volume production of essential semiconductor components with focus on efficiency, reliability, and sustainability.

NZH series Zener diodes are part of Nexperia's automotive-qualified discrete portfolio, engineered specifically for robust voltage regulation in harsh-environment electronics-including engine management, ADAS sensors, and industrial automation controllers.

FAQ

What is the maximum reverse current for NZH5V6B,115 at 2.5 V?

The maximum reverse current is 5 μA at V_R = 2.5 V and T_j = 25 °C, as specified in Table 8 of the datasheet. This value remains valid across the full operating temperature range (−55 °C to +150 °C) and confirms suitability for low-leakage bias networks in precision analog circuits.

Is NZH5V6B,115 suitable for reflow soldering only?

Yes-Nexperia explicitly recommends reflow soldering only for the SOD123F package. Hand soldering or wave soldering is not supported due to thermal stress risks. The device requires peak reflow temperature ≤260 °C (per JEDEC J-STD-020), with controlled ramp rates and dwell time aligned to the SOD123F footprint in Figure 5.

How does the Zener voltage tolerance affect regulation accuracy?

At I_Z = 20 mA, V_Z ranges from 5.45 V to 5.73 V (±2.5% of 5.6 V), yielding ±0.14 V absolute deviation. When used in feedback dividers or reference buffers, this directly sets system-level voltage accuracy-e.g., limiting ADC full-scale error to ±0.42% for a 3.3 V reference derived from this Zener.

Can NZH5V6B,115 replace a 5.1 V Zener in existing designs?

No-its nominal 5.6 V Zener voltage is not interchangeable with 5.1 V devices without circuit recalibration. Substituting would shift regulation points, potentially causing overvoltage in downstream ICs or insufficient headroom in LDO feedback paths. Use only where 5.6 V is explicitly required by system architecture.