Diodes Incorporated D3Z6V2BF-7

Overview

D3Z6V2BF-7 from Diodes Incorporated is a precision 0.4W surface-mount Zener diode with nominal zener voltage 6.2 V (min 6.06 V, max 6.33 V), ±5% tolerance, 50 Ω dynamic impedance at 5 mA, and 0.5 μA reverse leakage at 3 V. It operates from −65 °C to +150 °C and is used for voltage regulation and reference in low-power analog circuits, power supply feedback loops, and overvoltage protection.

For engineers reviewing the D3Z6V2BF-7 datasheet, D3Z6V2BF-7 pinout, D3Z6V2BF-7 application, or D3Z6V2BF-7 equivalent, key selection criteria include zener voltage tightness (±5%), low thermal resistance (312.5 °C/W), SOD323F package compatibility with high-density PCB layouts, and AEC-Q200 readiness for automotive-grade reliability validation.

Technical Context

This Zener diode delivers stable voltage reference performance under low-current conditions (IZT = 5 mA), with temperature coefficient of +2.5 mV/°C - enabling predictable drift compensation in temperature-sensitive analog designs. Its 95 pF junction capacitance supports moderate-speed transient suppression without signal distortion in DC-biased rails.

The device uses a planar epitaxial construction with cathode band marking, optimized for automated pick-and-place assembly on FR-4 PCBs. Thermal derating begins above +25 °C ambient, maintaining 400 mW dissipation only up to +70 °C per the specified power derating curve.

Key Specifications

Pinout & Package

Package: SOD323F - ultra-small plastic surface-mount package (1.25 mm × 1.70 mm × 0.95 mm), halogen- and antimony-free, RoHS-compliant, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX384-B6V2,215 and MMSZ5234B-TP, D3Z6V2BF-7 uniquely balances 400 mW dissipation, 50 Ω impedance, SOD323F miniaturization, and extended −65 °C to +150 °C operation - making it optimal for automotive and industrial applications demanding both size and thermal robustness.

Availability

D3Z6V2BF-7 is available at Aetrix Electronics and suitable for voltage reference design, power supply feedback networks, and overvoltage protection circuits requiring stable component supply across automotive, industrial control, and consumer electronics programs.

Supply support for D3Z6V2BF-7 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 North America.

D3Z6V2BF-7 belongs to Diodes' precision Zener diode family targeting high-accuracy voltage regulation in space- and power-constrained applications - engineered specifically for automotive, industrial, and computing systems needing AEC-Q200-aligned reliability.

FAQ

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

The D3Z6V2BF-7 has a nominal zener voltage of 6.2 V, with guaranteed breakdown occurring between 6.06 V and 6.33 V at 5 mA test current. It is not rated for sustained reverse voltage above its VZ range; operation beyond 6.33 V risks exceeding its 400 mW power limit unless current is strictly limited by external series resistance.

Does this part meet AEC-Q200 requirements for automotive use?

While D3Z6V2BF-7 is manufactured in IATF 16949-certified facilities and supports PPAP documentation, Diodes states that AEC-Q200 qualification requires specific change control and must be confirmed per customer request. The datasheet notes it is "ideally suited" for automotive applications but does not list formal AEC-Q200 test results in DS35437 Rev. 10-2.

How does the +2.5 mV/°C temperature coefficient affect circuit accuracy over temperature?

At +2.5 mV/°C, the zener voltage increases by 2.5 mV per degree Celsius rise. Over a 100 °C span (e.g., −40 °C to +60 °C), this yields ~250 mV drift - approximately ±4% of 6.2 V. For high-accuracy references, this drift must be compensated via circuit design or paired with TC-matched components.

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

No - the D3Z6V2BF-7 is a two-terminal passive Zener diode, lacking the active error amplifier, reference, and output stage of the TL431. It can serve as a simple voltage clamp or coarse reference, but cannot provide the adjustable, low-output-impedance regulation or current-sinking capability of a TL431 in feedback loops.