Diodes Incorporated BZT52C5V6S-7-F

Overview

BZT52C5V6S-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 5.6 V breakdown voltage, 5 mA test current, 40 Ω dynamic impedance at 5 mA, 200 mW power dissipation, and SOD323 package. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits for automotive and industrial control modules.

For engineers reviewing the BZT52C5V6S-7-F datasheet, BZT52C5V6S-7-F pinout, BZT52C5V6S-7-F application, or BZT52C5V6S-7-F equivalent, key selection criteria include Zener voltage tolerance (±7.1%), temperature coefficient (−2.0 mV/°C), reverse leakage at 2.0 V (2.5 µA), and AEC-Q101 qualification for automotive reliability.

Technical Context

This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. Its −2.0 mV/°C temperature coefficient ensures predictable drift in ambient temperature ranges from −65 °C to +150 °C, and its 40 Ω Zener impedance at 5 mA supports tight regulation in precision reference paths.

The device uses planar die construction in a molded plastic SOD323 case with matte tin–plated alloy 42 leadframe, enabling compatibility with automated reflow assembly and meeting AEC-Q101 stress testing requirements for high-reliability automotive applications.

Key Specifications

Pinout & Package

SOD323 package: two-terminal surface-mount device with cathode band marking; anode and cathode terminals are co-planar, spaced 1.7 mm apart (E dimension), with 0.3 mm lead thickness (L).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMSZ5232BS-7-F and BZX384-B5V6,115, the BZT52C5V6S-7-F offers optimal balance of AEC-Q101 compliance, SOD323 compactness, and 200 mW thermal envelope for space-constrained automotive modules where moderate power and strict qualification are jointly required.

Availability

BZT52C5V6S-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and consumer power adapter feedback circuits requiring stable component supply with full traceability and AEC-Q101 assurance.

Supply support for BZT52C5V6S-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' automotive-qualified Zener portfolio, engineered specifically for voltage reference and protection in harsh-environment electronic control units where reliability, consistency, and regulatory compliance are non-negotiable.

FAQ

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

The BZT52C5V6S-7-F has a nominal Zener voltage of 5.6 V at 5 mA test current, with a guaranteed breakdown range of 5.2 V to 6.0 V. It is not rated for forward or reverse blocking beyond its specified Zener region; operation above 6.0 V in reverse bias will cause uncontrolled conduction and potential thermal failure if power dissipation exceeds 200 mW.

Is this part suitable for use in a 12 V automotive system?

Yes - the BZT52C5V6S-7-F is AEC-Q101 qualified and rated for operation from −65 °C to +150 °C. In a 12 V system, it functions reliably as a shunt reference or clamp when placed across a current-limiting resistor, provided power dissipation remains within 200 mW (e.g., ≤35.7 mA through the diode at 5.6 V).

Does the SOD323 package support hand soldering?

The SOD323 package is designed for reflow soldering per JEDEC J-STD-020 moisture sensitivity Level 1. While possible with fine-tip irons and flux, hand soldering risks thermal damage to the die or pad lifting due to its 0.3 mm lead thickness and small 1.3 mm × 1.7 mm footprint; reflow is strongly recommended for production and reliability.

How does the −2.0 mV/°C temperature coefficient affect circuit performance?

The −2.0 mV/°C coefficient means the Zener voltage decreases by 2.0 mV per degree Celsius rise in junction temperature. Over a 100 °C range (−40 °C to +60 °C), this causes a −200 mV shift - approximately −3.6% of 5.6 V - which must be compensated in precision references using matched components or calibration.