Nexperia USA Inc. NZX5V6E,133

Overview

NZX5V6E,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation and reference functions in low-power analog circuits. It delivers a nominal Zener voltage of 5.6 V at 5 mA, with differential resistance ≤40 Ω, reverse current ≤1 μA at 2 V, total power dissipation up to 500 mW, and operates across −65 °C to +175 °C ambient temperature - used in power supply feedback loops and overvoltage protection circuits.

For engineers reviewing the NZX5V6E,133 datasheet, NZX5V6E,133 pinout, NZX5V6E,133 application, or NZX5V6E,133 equivalent, key selection criteria include Zener voltage tolerance (±0.3 V), low leakage at VR = 2 V, thermal resistance (Rth(j-a) = 380 K/W), axial-leaded SOD27 mechanical compatibility, and compliance with IEC 60134 absolute maximum ratings.

Technical Context

This Zener diode operates in reverse breakdown mode with tightly controlled VZ stability across temperature and current. Its low differential resistance (≤40 Ω at IZ = 5 mA) ensures minimal output voltage variation under load changes, while its low reverse leakage (<1 μA at VR = 2 V) supports high-impedance biasing and precision reference applications.

The device uses a hermetically sealed glass package (SOD27/SC-40) with axial leads, enabling reliable operation in harsh environments. Thermal performance is characterized by Rth(j-a) = 380 K/W (free air) and Rth(j-t) = 300 K/W, supporting stable junction temperature control on FR4 PCBs without metallization pads.

Key Specifications

Pinout & Package

Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with cathode band marking. Dimensions: 4.25 mm max length, 1.85 mm max diameter, 25.4 mm min lead length.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NZX5V6E,133, BZX55-C5V6 trades voltage precision for broader availability and lower cost, while 1N4734A offers superior power handling and lower impedance but sacrifices regulation accuracy and thermal efficiency in compact layouts.

Availability

NZX5V6E,133 is available at Aetrix Electronics and suitable for power supply feedback regulation, overvoltage clamp protection, and reference voltage source applications requiring stable component supply and long-term parametric consistency.

Supply support for NZX5V6E,133 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and robustness for industrial, automotive, and consumer markets.

The NZX series targets general-purpose Zener regulation with hermetic reliability and tight parametric control - engineered for stable voltage reference and protection in space-constrained, thermally demanding applications.

FAQ

What is the Zener voltage tolerance for NZX5V6E,133 at 5 mA?

The NZX5V6E,133 has a Zener voltage of 5.6 V with a tolerance of ±0.3 V at IZ = 5 mA, corresponding to a 5.3–5.9 V range. This tight specification is confirmed in Table 8 of the Nexperia datasheet Rev. 4 and enables high-accuracy regulation where standard ±5% Zeners would introduce unacceptable error.

Can NZX5V6E,133 be used in surface-mount designs?

No - NZX5V6E,133 uses an axial-leaded SOD27 (SC-40) glass package and is not surface-mount compatible. It requires through-hole mounting with minimum 8 mm lead length on FR4 PCBs. For SMT alternatives, consider Nexperia's BZX384-B5V6 (SOD-323) or PZM5.6NB (SOT-23), which differ in package, thermal behavior, and electrical specs.

What is the maximum reverse voltage before breakdown?

The rated working voltage is 5.6 V, and breakdown begins near that value under reverse bias. The datasheet specifies VR = 2 V as the test condition for leakage current (IR ≤1 μA); operation above 5.6 V is intentional Zener conduction. Absolute maximum reverse voltage is not defined separately - it is governed by Ptot = 500 mW and thermal limits.

How does thermal resistance affect derating at elevated ambient temperatures?

With Rth(j-a) = 380 K/W, junction temperature rise is ~190 °C at full 500 mW dissipation in free air. Derating begins at Tamp >25 °C: at 70 °C ambient, max allowable power drops to ~265 mW to hold Tj ≤175 °C. This must be accounted for in PCB layout, airflow, and load duty cycle.