Diodes Incorporated BZX84C6V2Q-13-F

Overview

BZX84C6V2Q-13-F from Diodes Incorporated is a 6.2 V, 350 mW surface-mount Zener diode in SOT23 package, designed for precision voltage regulation and overvoltage protection in low-power analog and digital circuits. It delivers ±0.4 V zener voltage tolerance at 5 mA test current, exhibits 10 Ω dynamic impedance at 5 mA, and maintains stable operation across –65 °C to +150 °C ambient range. Used in power supply feedback loops, reference voltage generation, and ESD clamp circuits.

For engineers reviewing the BZX84C6V2Q-13-F datasheet, BZX84C6V2Q-13-F pinout, BZX84C6V2Q-13-F application, or BZX84C6V2Q-13-F equivalent, key selection criteria include zener voltage accuracy (5.8–6.6 V), low dynamic impedance (10 Ω @ 5 mA), automotive-grade AEC-Q101 qualification, thermal resistance (357 °C/W), and SOT23-compatible footprint for high-density PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal zener voltage of 6.2 V at 5 mA test current and supports stable regulation down to 1 mA minimum zener current. Its 10 Ω zener impedance at I_ZT = 5 mA ensures minimal output voltage variation under load changes.

The device features planar die construction, matte tin-plated alloy 42 leadframe, and UL 94V-0 molded plastic case. It is fully RoHS-compliant, halogen- and antimony-free ("Green"), and qualified to AEC-Q101 for automotive reliability.

Key Specifications

Pinout & Package

Package: SOT23 - 3-terminal surface-mount plastic package with 0.915 mm body width, 2.40 mm length, and 1.30 mm height; compatible with automated pick-and-place and reflow soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMSZ4686-TP and BZX84-C6V2,115, the BZX84C6V2Q-13-F offers superior regulation accuracy (10 Ω vs. ≥15 Ω) and guaranteed automotive qualification, making it optimal for safety-critical voltage references where stability under thermal stress is essential.

Availability

BZX84C6V2Q-13-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and USB-C power delivery monitors requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 compliance.

Supply support for BZX84C6V2Q-13-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.

The BZX84 series belongs to Diodes' precision Zener diode product line, engineered specifically for stable voltage reference and overvoltage protection in space-constrained, thermally demanding applications.

FAQ

What is the maximum reverse voltage this Zener diode can withstand before breakdown?

The BZX84C6V2Q-13-F has a nominal zener voltage of 6.2 V, with a guaranteed breakdown range of 5.8 V to 6.6 V at 5 mA test current. It does not specify a separate "maximum reverse voltage" rating-operation above 6.6 V at rated current will exceed its specified tolerance band but remains within safe operating limits up to its absolute maximum power dissipation of 350 mW.

Is this part suitable for use in a 12 V automotive system's overvoltage protection circuit?

Yes-the BZX84C6V2Q-13-F is AEC-Q101 qualified and rated for operation from –65 °C to +150 °C. In a 12 V system, it functions as a secondary clamp (e.g., protecting downstream 5 V regulators), leveraging its fast response and low leakage (3.0 µA @ 4.0 V) to prevent false triggering during normal transients.

How does the "Q" suffix in the part number affect specifications?

The "Q" denotes automotive qualification per AEC-Q101 standards, including extended temperature testing, accelerated life validation, and enhanced process controls. Electrical parameters remain identical to the standard BZX84C6V2-13-F, but lot traceability, defect rate limits, and packaging integrity meet automotive requirements.

Can this Zener diode replace a 6.8 V variant in an existing design?

No-zener voltage is fixed by process and structure. Substituting BZX84C6V2Q-13-F for a 6.8 V part (e.g., BZX84C6V8Q-13-F) shifts the regulation point by 0.6 V, potentially causing overvoltage or undervoltage in feedback loops. Always verify target voltage tolerance and impedance match before substitution.