Diodes Incorporated BZT52C6V2SQ-7-F

Overview

BZT52C6V2SQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 6.2 V zener voltage at 5 mA test current, 10 Ω maximum zener impedance at 5 mA, and 200 mW power dissipation in SOD323 package. It provides precision voltage regulation in low-power analog circuits, ESD protection clamping, and reference voltage generation for sensor signal conditioning.

For engineers reviewing the BZT52C6V2SQ-7-F datasheet, BZT52C6V2SQ-7-F pinout, BZT52C6V2SQ-7-F application, or BZT52C6V2SQ-7-F equivalent, key selection criteria include zener voltage tolerance (±6.5% at 6.2 V), temperature coefficient (+0.4 mV/°C), reverse leakage (2 µA at 4.0 V), and AEC-Q101 qualification for automotive use.

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 breakdown characteristics, while the SOD323 package supports high-density PCB layouts and automated reflow assembly.

The device exhibits a positive temperature coefficient of +0.4 mV/°C above 6 V, enabling predictable drift compensation in voltage references. With 150 Ω maximum dynamic impedance at knee current (1.0 mA) and 2 µA maximum reverse current at VR = 4.0 V, it delivers tight regulation in low-current bias networks.

Key Specifications

Pinout & Package

SOD323 package: 2-terminal surface-mount device with molded plastic case (UL 94V-0), matte tin-plated alloy 42 leadframe, and cathode band polarity marking. Weight: 0.0049 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMSZ5234B-7-F and BZX384-C6V2, BZT52C6V2SQ-7-F offers superior regulation accuracy (10 Ω vs. ≥15 Ω Z_ZT) and documented AEC-Q101 compliance-critical for automotive voltage reference and clamping functions where long-term parametric stability is mandated.

Availability

BZT52C6V2SQ-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and portable medical pulse oximeters requiring stable component supply with full traceability and lifecycle management.

Supply support for BZT52C6V2SQ-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 North America.

The BZT52C series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for automotive and industrial applications demanding high reliability, tight voltage tolerance, and robust thermal performance in miniature SMD packages.

FAQ

What is the maximum reverse leakage current for BZT52C6V2SQ-7-F at 4.0 V?

The maximum reverse leakage current is 2 µA at V_R = 4.0 V and T_A = 25°C, as specified in the Electrical Characteristics table of DS30093 Rev. 20-2. This value ensures minimal standby current draw in battery-powered voltage monitor circuits.

Is BZT52C6V2SQ-7-F suitable for use in automotive applications?

Yes - it is explicitly qualified to AEC-Q101 standards for high-reliability automotive use, with validation for temperature cycling, humidity testing, and mechanical shock. The "Q" in the part number denotes automotive qualification per Diodes Incorporated's ordering nomenclature.

What does the "-7-F" suffix indicate in BZT52C6V2SQ-7-F?

The "-7-F" suffix denotes tape-and-reel packaging: 3,000 units per reel, with "7" indicating 7-inch reel diameter and "F" specifying Diodes Incorporated's standard lead-free, RoHS-compliant finish. This matches the packaging format defined in the Ordering Information section of DS30093.

How does the temperature coefficient affect regulation accuracy over temperature?

With a +0.4 mV/°C temperature coefficient, the zener voltage increases by 0.4 mV per degree Celsius rise above 25°C. Over a –40°C to +125°C range, this results in ±62 mV drift (±1%), which is fully accounted for in the published min/max V_Z limits (5.8–6.6 V) and supported by AEC-Q101 thermal testing.