Diodes Incorporated BZX84C5V6Q-7-F

Overview

BZX84C5V6Q-7-F from Diodes Incorporated is an automotive-grade 5.6 V, 350 mW surface-mount Zener diode in SOT23 package, rated for 5 mA test current with 40 Ω dynamic impedance at 1 kHz and ±2.0% voltage tolerance (5.2–6.0 V), used for precision voltage regulation and overvoltage protection in power supply feedback loops and sensor biasing circuits.

For engineers reviewing the BZX84C5V6Q-7-F datasheet, BZX84C5V6Q-7-F pinout, BZX84C5V6Q-7-F application, or BZX84C5V6Q-7-F equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (357 °C/W), AEC-Q101 qualification, reverse leakage (≤1.0 µA at 2.0 V), and SOT23 terminal configuration for high-density PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent voltage regulation, while the matte tin–plated Alloy 42 leadframe supports reliable solderability per MIL-STD-202.

Rated for −65 °C to +150 °C operation, it delivers 5.6 V nominal regulation at 5 mA with a negative temperature coefficient of −2.0 mV/°C and total capacitance of ~50 pF at 1 V reverse bias - suitable for low-noise analog references and ESD-tolerant signal conditioning.

Key Specifications

Pinout & Package

Package: SOT23 - 3-terminal surface-mount plastic package with 0.915 mm lead pitch, UL 94V-0 flammability rating, and moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMSZ5232B-TP and BZX84-C5V6,115, the BZX84C5V6Q-7-F offers superior voltage tolerance (±2.0% vs. ±5% or ±2.5%), lowest Z_ZT (40 Ω), and guaranteed automotive qualification - making it optimal for safety-critical voltage references where regulation precision and reliability are non-negotiable.

Availability

BZX84C5V6Q-7-F is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial power supply feedback, and USB overvoltage protection requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant traceability.

Supply support for BZX84C5V6Q-7-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets with ISO/TS 16949 and IATF 16949 certification.

The BZX84 series targets cost-effective, space-constrained Zener regulation in automotive and industrial systems, emphasizing AEC-Q101 qualification, green materials compliance, and robust thermal performance in SOT23 packaging.

FAQ

What is the maximum reverse voltage the BZX84C5V6Q-7-F can withstand before breakdown?

The BZX84C5V6Q-7-F exhibits a nominal Zener voltage of 5.6 V at 5 mA test current, with a guaranteed breakdown range of 5.2 V to 6.0 V. It is not rated for sustained operation above 6.0 V in reverse bias; beyond this, uncontrolled conduction and thermal runaway may occur without current limiting.

Is the BZX84C5V6Q-7-F compatible with lead-free reflow soldering processes?

Yes - the device features matte tin-plated terminals qualified to MIL-STD-202, Method 208, and supports standard Pb-free reflow profiles (peak temperature up to 260 °C). Its moisture sensitivity level is 1, eliminating bake requirements prior to assembly.

How does the −2.0 mV/°C temperature coefficient affect circuit performance?

This negative coefficient means the Zener voltage decreases by 2.0 mV per degree Celsius rise in junction temperature. In a 5.6 V reference operating from −40 °C to +125 °C, total drift is approximately −330 mV - requiring compensation in high-accuracy applications or use within narrow ambient ranges.

Can BZX84C5V6Q-7-F replace BZX84C5V6-7-F in existing designs?

Yes - both share identical electrical specs and SOT23 package, but the "Q" suffix denotes AEC-Q101 qualification and automotive-grade screening. No layout or schematic changes are needed; the Q version adds reliability validation for automotive environments without functional trade-offs.