Diodes Incorporated BZT52C5V6T-7

Overview

BZT52C5V6T-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 5.6 V zener voltage, 5 mA test current, 40 Ω maximum zener impedance at 1 kHz, 1.0 µA maximum reverse leakage at 2.0 V, and ±2 mV/°C temperature coefficient - used for precision voltage regulation and overvoltage protection in low-power analog sensor interfaces and microcontroller I/O clamping circuits.

For engineers reviewing the BZT52C5V6T-7 datasheet, BZT52C5V6T-7 pinout, BZT52C5V6T-7 application, or BZT52C5V6T-7 equivalent, this part serves as a compact, RoHS-compliant, SOD523-packaged voltage reference and ESD clamp where tight tolerance (±0.4 V), low dynamic impedance, and stable thermal drift are required in space-constrained PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown mode with a specified 5.6 V nominal regulation point at 5 mA test current, exhibiting a typical temperature coefficient of –2 mV/°C and maintaining regulation stability across –55°C to +150°C ambient range. Its low 40 Ω dynamic impedance ensures minimal output voltage variation under load transients.

The device uses a planar silicon junction structure in a molded plastic SOD523 package with cathode band marking, matte tin–annealed terminals, and JEDEC-qualified reliability for high-reliability industrial and automotive-adjacent applications. Power dissipation is rated at 300 mW with 417 °C/W junction-to-ambient thermal resistance on FR-4 board.

Key Specifications

Pinout & Package

Package: SOD523 - ultra-compact surface-mount package (1.25 mm × 0.85 mm × 0.65 mm) with flat lead profile, cathode band marking, and matte tin–annealed Alloy 42 leads solderable per MIL-STD-202.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5232BS-7-F and BZX84-C5V6, BZT52C5V6T-7 delivers superior regulation fidelity (40 Ω vs. ≥50 Ω), lower profile (SOD523 vs. SOD-323/SOT-23), and identical leakage - making it optimal for next-gen miniaturized industrial and portable electronics.

Availability

BZT52C5V6T-7 is available at Aetrix Electronics and suitable for microcontroller I/O protection, low-power sensor reference, and industrial PLC input conditioning requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for BZT52C5V6T-7 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, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.

BZT52C5V6T-7 belongs to the BZT52C series of surface-mount Zener diodes designed specifically for precision voltage regulation and transient suppression in space-constrained, high-volume applications.

FAQ

What is the maximum power dissipation for BZT52C5V6T-7 at 70°C ambient?

At 70°C ambient, the device's power dissipation must be derated linearly from 300 mW at 25°C using the 417 °C/W R_θJA. The allowable power is 300 mW × (1 − (70 − 25)/417) = approximately 268 mW. This ensures junction temperature remains below 150°C under continuous operation.

Is BZT52C5V6T-7 qualified for automotive applications?

No - BZT52C5V6T-7 is an industrial-grade part. For automotive use, Diodes offers the Q-suffix variant BZT52C5V6TQ-7, which is AEC-Q101 qualified, PPAP-capable, and manufactured in IATF 16949-certified facilities. The standard part lacks automotive change control and qualification documentation.

How does the temperature coefficient affect regulation accuracy over –40°C to +85°C?

With a –2 mV/°C coefficient, the zener voltage shifts by –125 mV over a 125°C span (–40°C to +85°C). From nominal 5.6 V, this yields a worst-case range of ~5.475 V to 5.6 V - still within ±2.2% total variation, suitable for non-critical biasing and clamping functions.

Can BZT52C5V6T-7 replace a 5.1 V Zener in a voltage reference circuit?

No - its 5.6 V nominal zener voltage is not interchangeable with 5.1 V devices like BZT52C5V1T. Substituting would raise the regulated voltage by 0.5 V, potentially exceeding downstream component ratings or violating ADC reference requirements. Always match nominal V_Z within system tolerance bands.