Diodes Incorporated BZT52C6V2-13-F

Overview

BZT52C6V2-13-F from Diodes Incorporated is a surface-mount 6.2 V Zener diode in SOD123 package, rated for 500 mW peak power dissipation at TL = +75°C and 370 mW at TA = +25°C, with 10 Ω typical Zener impedance at 5 mA test current and ±5% voltage tolerance (5.8–6.6 V). It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.

For engineers reviewing the BZT52C6V2-13-F datasheet, BZT52C6V2-13-F pinout, BZT52C6V2-13-F application, or BZT52C6V2-13-F equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJA = 338 °C/W), reverse leakage (3.7 µA @ VR = 4.0 V), temperature coefficient (+0.4 mV/°C), 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 or supply conditions. Its planar die construction ensures consistent breakdown characteristics and low dynamic impedance (10 Ω @ 1 kHz, 5 mA).

The device exhibits a positive temperature coefficient of +0.4 mV/°C near 6.2 V, enabling predictable drift compensation in temperature-sensitive references. It is designed for automated SMT assembly on FR-4 PCBs with 1-inch copper pad layout per JEDEC standards.

Key Specifications

Pinout & Package

Two-terminal device in SOD123 plastic package with cathode band marking. Terminals are anode (unmarked end) and cathode (banded end); polarity must be observed for proper reverse-bias operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5234BS-7-F and BZX84-C6V2, BZT52C6V2-13-F offers superior automotive reliability (AEC-Q101), lower dynamic impedance (10 Ω vs. ≥15 Ω), and optimized thermal design for high-density SOD123 layouts-making it preferred for safety-critical or thermally constrained systems.

Availability

BZT52C6V2-13-F is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog input protection, and consumer power supply feedback requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for BZT52C6V2-13-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 devices, with emphasis on high-reliability, energy-efficient solutions for automotive, industrial, and consumer markets.

This device belongs to the BZT52C series of general-purpose Zener diodes engineered for medium-current voltage regulation and transient suppression in space-constrained, high-volume SMT applications.

FAQ

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

The BZT52C6V2-13-F has a nominal Zener voltage of 6.2 V with a guaranteed range of 5.8–6.6 V at 5 mA test current. Breakdown occurs within this range; applying reverse voltage below 5.8 V results in negligible current (<3.7 µA at 4.0 V), while exceeding 6.6 V risks uncontrolled conduction and thermal runaway if power limits are violated.

Is this part suitable for use in automotive applications?

Yes-BZT52C6V2-13-F is explicitly qualified to AEC-Q101 standards, covering high-temperature operating life, temperature cycling, and humidity testing required for under-hood and cabin electronics. Its green, lead-free construction and SOD123 package meet automotive manufacturing and environmental compliance mandates.

How does the SOD123 package affect thermal performance compared to SOT-23?

The SOD123 package delivers RθJA = 338 °C/W on FR-4 with 1-inch copper pad, slightly higher than typical SOT-23 (≈300 °C/W), due to smaller pad area and reduced copper exposure. However, its lower profile and standardized footprint improve board-level thermal coupling in dense layouts, and RθJL = 150 °C/W supports efficient heat transfer to PCB copper planes.

Can this Zener diode replace a 6.2 V linear regulator in low-current applications?

No-it functions only as a shunt regulator, requiring a series current-limiting resistor to set operating point. Unlike a linear regulator, it cannot source current or maintain regulation under variable load without external biasing. It is appropriate for voltage reference or overvoltage clamping, not active regulation of varying loads.