Taiwan Semiconductor Corporation BZW06-58

Overview

BZW06-58 from Taiwan Semiconductor is a unidirectional 600W Transient Voltage Suppressor (TVS) diode with a 58.1V working stand-off voltage, 64.6–71.4V breakdown range at 1mA, and 92.0V clamping voltage at 6.5A (10/1000μs). It features low dynamic impedance, <1μA leakage above 10V, and AEC-Q101 qualification for automotive-grade reliability. It protects power rails and signal lines in DC power supplies and industrial control systems against ESD and inductive switching transients.

For engineers reviewing the BZW06-58 datasheet, BZW06-58 pinout, BZW06-58 application, or BZW06-58 equivalent, key selection criteria include its DO-204AC (DO-15) package, unidirectional polarity, 175°C max junction temperature, and verified 600W surge capability per IEC 61000-4-5 Level 4 compliance testing.

Technical Context

The BZW06-58 operates as a silicon avalanche diode designed to clamp transient overvoltages by entering breakdown before downstream circuitry sustains damage. Its fast response time (<1.0ps from 0V to V_BR) ensures protection against nanosecond-scale ESD events, while its 600W peak pulse power rating applies specifically to the 10/1000μs waveform per IEC 61000-4-5.

Thermal performance is defined by R_θJL = 60°C/W and R_θJA = 100°C/W (L = 10mm), supporting operation from –55°C to +175°C. The device exhibits a positive temperature coefficient of V_BR (0.104%/°C), enabling predictable voltage drift across temperature.

Key Specifications

Pinout & Package

DO-204AC (DO-15) is a glass-passivated, axial-leaded package with cathode band marking for unidirectional polarity. Leads are pure tin-plated and solderable per J-STD-002. Weight is approximately 0.400g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Compared with SMBJ58A and P6KE56A, the BZW06-58 provides AEC-Q101 qualification in a proven DO-15 through-hole package, delivering identical 600W surge handling and tighter V_BR tolerance (±5% vs. ±10%), making it preferred for automotive and high-reliability industrial deployments.

Availability

BZW06-58 is available at Aetrix Electronics and suitable for automotive power management, industrial PLC input stages, LED driver protection, and telecom DC feeder systems requiring stable component supply and long-term lifecycle support.

Supply support for BZW06-58 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 power devices, TVS diodes, rectifiers, and MOSFETs, with global ISO/TS 16949 and AEC-Q200 certified production.

The BZW06 series was developed to deliver high-energy, automotive-qualified transient protection in standard axial packages, targeting design-in for engine control, body electronics, and industrial power systems where reliability under harsh thermal and electrical stress is critical.

FAQ

What is the maximum clamping voltage of the BZW06-58 under a 10/1000μs surge?

The BZW06-58 has a maximum clamping voltage (V_C) of 92.0 V when subjected to a 6.5 A peak pulse current with a 10/1000μs waveform. This value is measured per standard test conditions (T_A = 25°C) and defines the upper voltage limit imposed on protected circuitry during surge events. The BZW06-58 maintains this clamping performance across its full operating temperature range, ensuring consistent protection in demanding environments.

Is the BZW06-58 suitable for automotive applications?

Yes, the BZW06-58 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and infotainment power supplies. It operates reliably from –55°C to +175°C and withstands mechanical stress, thermal cycling, and humidity tests required by the AEC standard. The BZW06-58 meets these requirements in its standard DO-204AC (DO-15) package without derating.

What is the reverse leakage current of the BZW06-58 at its working stand-off voltage?

The BZW06-58 exhibits a maximum reverse leakage current (I_R) of 1 μA when biased at its rated working stand-off voltage (V_WM) of 58.1 V. This low leakage supports energy-efficient designs, especially in always-on systems like CAN transceivers or sensor nodes. The BZW06-58 maintains this specification across its full operating temperature range, with no increase beyond 1 μA up to +125°C.

Does the BZW06-58 have bidirectional variants?

Yes, the BZW06-58B is the bidirectional variant of the BZW06-58, sharing identical electrical ratings including V_WM = 58.1 V, V_BR = 64.6–71.4 V, and V_C = 92.0 V at 6.5 A (10/1000μs). The BZW06-58B is used where AC-coupled or dual-polarity signal lines require symmetrical clamping, such as in RS-485 or CAN FD data lines.

What is the thermal resistance from junction to lead for the BZW06-58?

The BZW06-58 has a junction-to-lead thermal resistance (R_θJL) of 60°C/W, measured with standard 9.5 mm lead length. This value enables effective heat transfer from the silicon die to the PCB copper or heatsink via the leads, supporting continuous operation at elevated ambient temperatures. When used in high-power surge scenarios, this R_θJL helps limit junction temperature rise, preserving long-term reliability of the BZW06-58.