Diodes Incorporated BZT52C5V6SQ-13-F

Overview

BZT52C5V6SQ-13-F from Diodes Incorporated is a surface-mount Zener diode with nominal 5.6 V zener voltage (40–60 Ω dynamic impedance at 5 mA, ±5% tolerance), rated for 200 mW power dissipation in SOD323 package, and qualified to AEC-Q101 for automotive reliability. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits.

For engineers reviewing the BZT52C5V6SQ-13-F datasheet, BZT52C5V6SQ-13-F pinout, BZT52C5V6SQ-13-F application, or BZT52C5V6SQ-13-F equivalent, key selection criteria include zener voltage accuracy (5.2–6.0 V), low reverse leakage (3 µA @ 2.0 V), temperature coefficient (−2.0 mV/°C), and automotive-grade qualification under AEC-Q101.

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, while the SOD323 package enables high-density PCB layouts and compatibility with automated reflow assembly.

The device exhibits a negative temperature coefficient of −2.0 mV/°C, indicating decreasing zener voltage with rising junction temperature - critical for thermal stability in precision references. Reverse leakage remains ≤3 µA at VR = 2.0 V, supporting low-power standby operation in battery-sensitive systems.

Key Specifications

Pinout & Package

SOD323 package: 2-terminal surface-mount device with cathode band marking on top surface; anode and cathode terminals aligned along short edge; JEDEC-compliant footprint (D = 1.30 mm, E = 1.70 mm, He = 2.50 mm).

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 BZT52C5V6SQ-13-F uniquely balances AEC-Q101 compliance, SOD323 compactness, and cost-effective ±5% regulation - making it optimal for volume automotive and industrial control applications where moderate accuracy suffices.

Availability

BZT52C5V6SQ-13-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and consumer power adapter feedback circuits requiring stable component supply and long-term lifecycle support.

Supply support for BZT52C5V6SQ-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 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 diode product line, engineered specifically for reliable voltage regulation in harsh-environment applications such as engine control units, lighting modules, and ADAS subsystems.

FAQ

What is the maximum reverse leakage current for BZT52C5V6SQ-13-F at 2.0 V?

The maximum reverse leakage current is 3 µA at VR = 2.0 V and TA = 25°C, as specified in the Electrical Characteristics table. This value remains stable across the full operating temperature range (−65°C to +150°C) and supports low-quiescent-current designs in battery-powered systems.

Is BZT52C5V6SQ-13-F suitable for use in automotive applications?

Yes - BZT52C5V6SQ-13-F is explicitly qualified to AEC-Q101 standards, including temperature cycling, high-temperature operating life, and mechanical shock testing. The "Q" in the part number denotes automotive qualification, and the device is packaged in 3,000-unit tape-and-reel format compliant with automotive logistics requirements.

How does the temperature coefficient affect voltage regulation accuracy?

The temperature coefficient is −2.0 mV/°C, meaning the zener voltage decreases by approximately 2 mV per degree Celsius rise in junction temperature. For a 5.6 V nominal device, this yields ~0.036% per °C drift - a critical factor when designing references for wide-temperature-range applications like under-hood automotive electronics.

What is the recommended pad layout for SOD323 mounting?

The recommended SOD323 pad layout specifies X = 0.590 mm, X1 = 2.700 mm, Y = 0.450 mm per Diodes' package outline documentation. These dimensions ensure proper solder fillet formation, thermal relief, and mechanical reliability during reflow. Full layout guidelines are published at diodes.com/package-outlines.html.