Diodes Incorporated BZX84C6V2-7-F

Overview

BZX84C6V2-7-F from Diodes Incorporated is a 350mW surface-mount Zener diode with nominal zener voltage 6.2V (±0.4V tolerance), 10Ω dynamic impedance at 5mA test current, and 3.0µA maximum reverse leakage at 4.0V. It operates from –65°C to +150°C and is housed in an SOT23 package for voltage regulation and reference applications in power supply feedback loops.

For engineers reviewing the BZX84C6V2-7-F datasheet, BZX84C6V2-7-F pinout, BZX84C6V2-7-F application, or BZX84C6V2-7-F equivalent, key selection criteria include zener voltage accuracy, low dynamic impedance, thermal stability, RoHS/Green compliance, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This Zener diode functions as a precision voltage reference by operating in reverse breakdown with controlled knee characteristics. Its planar die construction ensures stable zener voltage over temperature, and its 10Ω zener impedance at 5mA supports tight regulation in low-current bias networks.

The device exhibits a positive temperature coefficient of +0.4mV/°C near 6.2V, enabling predictable drift compensation in reference circuits. Its 350mW power rating applies under ambient-temperature terminal conditions, while derating begins above 25°C per the published curve.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic case with matte tin-plated Alloy 42 leadframe, UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5234B-7-F and BZX84-C6V2,115, the BZX84C6V2-7-F offers superior power handling (350mW vs 200mW), lower dynamic impedance (10Ω vs 17Ω), and formal AEC-Q101 qualification-making it preferred for automotive and industrial designs demanding robustness and regulatory traceability.

Availability

BZX84C6V2-7-F is available at Aetrix Electronics and suitable for automotive engine control units, industrial programmable logic controllers, and consumer power adapter feedback circuits requiring stable component supply and full RoHS/Green compliance.

Supply support for BZX84C6V2-7-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

The BZX84 series belongs to Diodes' precision Zener diode product line, engineered for voltage regulation, reference, and overvoltage protection in space-constrained, high-reliability applications including automotive, industrial, and computing systems.

FAQ

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

The BZX84C6V2-7-F has a nominal zener voltage of 6.2V with a guaranteed breakdown range of 5.8V to 6.6V at 5mA test current. It does not have a separate "maximum reverse voltage" rating - instead, it enters controlled reverse breakdown within that range and maintains regulation up to its 350mW power limit. Operation above 6.6V at high current risks exceeding thermal limits.

Is this part suitable for use in automotive applications?

Yes - the BZX84C6V2-7-F is explicitly qualified to AEC-Q101 standards for high-reliability automotive applications. It meets stringent requirements for temperature cycling, humidity resistance, and mechanical shock, and is commonly deployed in engine control units, body control modules, and ADAS power supplies where long-term stability and failure mode predictability are critical.

How does the temperature coefficient affect performance in a 6.2V reference circuit?

This device exhibits a temperature coefficient of +0.4mV/°C near 6.2V, meaning its zener voltage increases by approximately 0.4mV per degree Celsius rise in junction temperature. Over a –40°C to +125°C range, total drift is ~66mV (±1.06%), which must be accounted for in precision references - often mitigated using complementary TC components or calibration.

Can this Zener diode replace a 6.2V TL431-based shunt regulator?

No - the BZX84C6V2-7-F is a passive two-terminal Zener diode and cannot replicate the active feedback, adjustable output, or current-sinking capability of the TL431. It may serve as a simple fixed-voltage reference or clamp in low-current applications (<5mA), but lacks the TL431's 100mA sink capacity, internal error amplifier, and programmable threshold functionality.