Taiwan Semiconductor Corporation BZT52C16-G

Overview

BZT52C16-G from Taiwan Semiconductor is a 16 V ±5% tolerance surface-mount Zener diode in SOD-123 package, rated for 350 mW power dissipation, with 40 Ω dynamic impedance at 5 mA test current and 0.1 µA leakage current at 11.2 V reverse voltage. It serves as a precision voltage reference or overvoltage clamp in low-power analog regulation circuits.

For engineers reviewing the BZT52C16-G datasheet, BZT52C16-G pinout, BZT52C16-G application, or BZT52C16-G equivalent, key selection criteria include its nominal Zener voltage (16 V), tight 5% tolerance, SOD-123 footprint compatibility, thermal resistance (357 °C/W), and junction temperature range (–55 to +150 °C).

Technical Context

The BZT52C16-G operates as a single-die, cathode-banded Zener diode optimized for stable reverse-breakdown regulation at 16 V nominal. Its 5 mA test current and 40 Ω dynamic impedance ensure predictable voltage clamping under moderate load transients.

Designed for surface-mount assembly with matte tin-plated leads compliant to J-STD-002, it meets JESD 201 Class 1A whisker resistance and UL 94V-0 flammability requirements. Polarity is unambiguously indicated by a visible cathode band on the SOD-123 case.

Key Specifications

Pinout & Package

Package: SOD-123 - compact surface-mount plastic case with cathode band marking; dimensions per JEDEC DO-213AA; weight ≈ 10.55 mg.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5245B-7-F and 1N4744A, the BZT52C16-G offers optimal balance of SOD-123 manufacturability, 5 mA test-point alignment with common bias networks, and 0.1 µA leakage at 11.2 V-making it ideal for low-quiescent-current regulation where precision and assembly efficiency are jointly prioritized.

Availability

BZT52C16-G is available at Aetrix Electronics and suitable for sensor interface circuits, microcontroller I/O protection, and DC-DC feedback networks requiring stable component supply and RoHS-compliant sourcing.

Supply support for BZT52C16-G 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete devices, analog ICs, and power management solutions for industrial, computing, and consumer markets.

The BZT52C series was developed to deliver high-precision, low-cost Zener regulation in standardized SMD packages-targeting design-in simplicity, supply chain resilience, and compliance with global environmental standards.

FAQ

What is the nominal Zener voltage and tolerance of BZT52C16-G?

The BZT52C16-G has a nominal Zener voltage of 16 V with a guaranteed tolerance of ±5%, meaning its actual breakdown voltage falls between 15.3 V and 17.1 V when tested at 5 mA. This specification is confirmed in the Electrical Specifications table of the official Taiwan Semiconductor datasheet (Version C2007), and applies directly to the BZT52C16-G-not derived from family averages or interpolation.

What package type does BZT52C16-G use, and what are its key mechanical features?

BZT52C16-G uses the SOD-123 surface-mount package, featuring matte tin-plated leads compliant with J-STD-002 solderability, polarity indicated by a cathode band, and UL 94V-0 flammability-rated molding compound. Its weight is approximately 10.55 mg, and it meets JESD 201 Class 1A whisker resistance-verified in the Mechanical Data section of the Taiwan Semiconductor datasheet.

What is the maximum power dissipation and thermal resistance of BZT52C16-G?

The BZT52C16-G has a maximum power dissipation (P_D) of 350 mW at T_A = 25 °C, with a junction-to-ambient thermal resistance (R_θJA) of 357 °C/W. These values are specified in the Absolute Maximum Ratings and Thermal Performance sections of the official datasheet and define safe operating limits for PCB layout and ambient temperature derating.

How does the leakage current of BZT52C16-G compare to its rated Zener voltage?

The BZT52C16-G exhibits a maximum leakage current of 0.1 µA at a reverse voltage of 11.2 V-significantly below its 15.3–17.1 V Zener range. This low leakage ensures minimal loading on high-impedance bias networks and preserves accuracy in precision reference applications, as documented in the Electrical Specifications table under "Leakage Current (I_R @ V_R)".

Is BZT52C16-G RoHS and halogen-free compliant?

Yes, BZT52C16-G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This compliance is verified through material declarations and process controls, supporting environmentally regulated end markets including EU industrial equipment and medical peripherals.