Diodes Incorporated BZT52C16TQ-7-F

Overview

BZT52C16TQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 16 V zener voltage (15.3–17.1 V range at 5 mA), 300 mW power dissipation, and SOD523 package. It provides precision voltage regulation and overvoltage protection in low-power analog circuits, power supply feedback loops, and reference voltage generation for automotive body control modules and industrial sensor interfaces.

For engineers reviewing the BZT52C16TQ-7-F datasheet, BZT52C16TQ-7-F pinout, BZT52C16TQ-7-F application, or BZT52C16TQ-7-F equivalent, this part supports stable voltage clamping in space-constrained PCBs where thermal resistance (R_θJA = 417 °C/W) and low-profile mounting (0.65 mm max height) are critical design constraints.

Technical Context

This Zener diode operates in reverse breakdown mode with a specified test current of 5 mA and exhibits a positive temperature coefficient of +11.2 mV/°C - enabling predictable drift compensation in temperature-sensitive references. Its low leakage current (≤0.1 µA at 14.0 V reverse bias) ensures minimal standby power loss in battery-backed systems.

The device uses a flat-lead SOD523 package with matte tin annealed terminals on Alloy 42 leadframe, supporting solderability per MIL-STD-202 Method 208 and moisture sensitivity level 1 (J-STD-020). Its 0.001 g mass and UL 94V-0 molded plastic housing meet stringent automotive and portable electronics mechanical requirements.

Key Specifications

Pinout & Package

Package: SOD523 - ultra-compact surface-mount package (1.25 mm × 0.85 mm × 0.65 mm max), cathode indicated by band marking, matte tin-plated Alloy 42 leadframe, UL 94V-0 molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMSZ5245B-7-F and BZX84-C16, BZT52C16TQ-7-F offers superior thermal performance in minimal area, full AEC-Q101 qualification, and guaranteed halogen-free compliance - making it the preferred choice for next-generation automotive and medical-grade designs requiring both reliability and regulatory alignment.

Availability

BZT52C16TQ-7-F is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor signal conditioning, and portable medical instrument power monitoring requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for BZT52C16TQ-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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions, with ISO/TS 16949-certified facilities and broad automotive qualification coverage.

This device belongs to the BZT52C series of automotive-grade Zener diodes, designed specifically for voltage regulation and transient protection in space- and reliability-critical applications such as engine control, ADAS sensors, and infotainment power rails.

FAQ

What is the maximum reverse voltage before breakdown for BZT52C16TQ-7-F?

The nominal zener voltage is 16 V, with a guaranteed range of 15.3 V to 17.1 V at 5 mA test current. Breakdown begins within this range; operation below 15.3 V ensures negligible conduction (<0.1 µA leakage at 14.0 V). The device is not rated for sustained reverse bias above 17.1 V without exceeding power limits.

Is BZT52C16TQ-7-F qualified for automotive applications?

Yes - the "Q" suffix denotes AEC-Q101 qualification. It is manufactured in IATF 16949-certified facilities, supports PPAP documentation, and meets JEDEC high-reliability standards. Full qualification data is available in Diodes' automotive product portal.

How does the temperature coefficient affect regulation accuracy?

Its +11.2 mV/°C coefficient means output voltage increases ~1.12 V over a 100°C span (e.g., −40°C to +60°C). For high-accuracy references, this drift must be compensated in system-level calibration or paired with negative-TC components in composite references.

Can BZT52C16TQ-7-F replace BZT52C15T in a 15 V circuit?

No - BZT52C15T has a 13.8–15.6 V range, while BZT52C16TQ-7-F starts regulation at ≥15.3 V. Substituting may cause insufficient clamping headroom or premature conduction in 15 V systems. Always verify V_Z min/max against circuit margin requirements before interchange.