Diodes Incorporated BZX84C2V7Q-13-F

Overview

BZX84C2V7Q-13-F from Diodes Incorporated is a 2.7 V, 350 mW surface-mount Zener diode in SOT23 package, rated for 5 mA test current and ±0.2 V tolerance (2.5–2.9 V), with 100 Ω maximum Zener impedance at 1 kHz and −3.5 mV/°C temperature coefficient. It provides precision voltage reference and overvoltage clamping in low-power analog signal conditioning circuits.

For engineers reviewing the BZX84C2V7Q-13-F datasheet, BZX84C2V7Q-13-F pinout, BZX84C2V7Q-13-F application, or BZX84C2V7Q-13-F equivalent, key selection criteria include nominal Zener voltage accuracy, thermal coefficient stability, low leakage (<20 µA @ 1.0 V), SOT23 footprint compatibility, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its planar die construction ensures consistent Zener characteristics and low dynamic impedance (100 Ω typical at I_ZT = 5 mA).

The device exhibits a negative temperature coefficient of −3.5 mV/°C, enabling predictable drift compensation in reference designs. With 350 mW power dissipation capability and R_θJA = 357 °C/W (on thermally optimized PCB), it supports continuous operation up to +150 °C junction temperature.

Key Specifications

Pinout & Package

Package: SOT23 - molded plastic case, UL 94V-0 rated, 0.008 g weight, matte tin-plated alloy 42 leadframe, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84C2V7Q-13-F, MMBZ5223BS-7-F trades automotive reliability for lower cost and smaller size, while BZX84-C2V7-13-F offers identical performance without AEC-Q101 assurance-making the Q-suffix version essential for production automotive systems requiring zero-risk component validation.

Availability

BZX84C2V7Q-13-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and portable medical device power supervision requiring stable component supply and long-term lifecycle continuity.

Supply support for BZX84C2V7Q-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers in Asia, Europe, and the U.S., and manufacturing in China and Malaysia.

This part belongs to the BZX84C series of automotive-qualified Zener diodes, engineered specifically for high-reliability voltage regulation and clamping in harsh-environment electronic control units.

FAQ

What is the maximum reverse voltage (V_R) before significant leakage occurs?

The datasheet specifies a maximum reverse current (I_R) of 20 µA at V_R = 1.0 V. At 2.0 V, leakage remains below 50 µA - well within safe operating limits for signal-level clamping. This confirms stable blocking behavior up to 1.0 V, making it suitable for 1.8 V or 3.3 V rail monitoring where reverse bias stays below threshold.

Is the SOT23 pinout standardized across all BZX84C variants?

Yes - all BZX84C-series devices in SOT23 use identical pinout: Pin 1 = Anode, Pin 2 = Cathode, Pin 3 = NC (die attach). This is confirmed by Diodes Incorporated's official package drawings and top-view schematic in DS18001 Rev. 33, ensuring layout reuse across voltage grades.

How does the −3.5 mV/°C temperature coefficient impact accuracy over −40 °C to +125 °C?

Over that 165 °C range, total Zener voltage shift is approximately −578 mV (−3.5 × 165), resulting in a 2.7 V nominal device drifting from ~3.28 V at −40 °C to ~2.12 V at +125 °C. System-level compensation or tolerance budgeting must account for this full-range deviation in precision reference designs.

Can BZX84C2V7Q-13-F replace BZX84C2V4Q-13-F in a 2.5 V reference circuit?

No - the 2.7 V nominal voltage exceeds the 2.5 V target by 8%, exceeding typical 5% tolerance budgets for reference circuits. Substituting would raise clamping threshold and risk undervoltage detection failure. Use only if system-level analysis confirms acceptable margin shift and no downstream component violates absolute maximum ratings.