Taiwan Semiconductor Corporation TUAU10MH

Overview

TUAU10MH from Taiwan Semiconductor is a 10A, 1000V high-efficiency surface-mount rectifier in TO-277A (SMPC4.6U) package, featuring glass-passivated junction, AEC-Q101 qualification, wettable flanks, and 80 ns reverse recovery time - deployed in automotive snubber and freewheeling circuits requiring robust surge handling and thermal stability up to 150°C junction temperature.

For engineers reviewing the TUAU10MH datasheet, TUAU10MH pinout, TUAU10MH application, or TUAU10MH equivalent, key selection criteria include its 1000V V_RRM, 150A I_FSM, 1.51V forward voltage at 10A/25°C, 25 µA reverse leakage at 125°C, and compatibility with automated optical inspection due to wettable flank terminals.

Technical Context

The TUAU10MH is a single-die, ultra-fast recovery silicon rectifier optimized for high-voltage switching applications. Its 1000V repetitive peak reverse voltage and 80 ns reverse recovery time enable efficient operation in high-frequency DC–DC converters and automotive power supplies where fast turn-off minimizes switching losses.

Thermally, it delivers R_θJL = 5.0°C/W and R_θJC = 7.6°C/W when mounted on a 16 mm × 16 mm Cu pad, supporting sustained 10A conduction under ambient conditions up to 100°C - with junction limited to 150°C per absolute maximum rating.

Key Specifications

Pinout & Package

Package: TO-277A (SMPC4.6U), surface-mount, single-anode/single-cathode configuration with cathode band polarity marking and matte tin-plated wettable flank leads compliant with J-STD-002 solderability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage rectifier applications.

Compared with VS-10EWH10-M3 and MUR10100CT, the TUAU10MH uniquely combines AEC-Q101 compliance, wettable flank leads for AOI, and 150°C junction rating - making it the only option qualified for under-hood automotive use with SMT process assurance.

Availability

TUAU10MH is available at Aetrix Electronics and suitable for automotive power conversion, LED lighting drivers, snubber networks, and industrial motor control applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TUAU10MH 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, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q101 validation capability.

The TUAU10MH belongs to TSC's high-voltage ultra-fast rectifier product line, engineered specifically for automotive and industrial switching power supplies demanding high surge immunity, thermal resilience, and automated assembly compatibility.

FAQ

What is the maximum junction temperature rating for TUAU10MH?

The TUAU10MH has an absolute maximum junction temperature of +150°C, verified per its datasheet's Absolute Maximum Ratings table. This rating applies across the full operating range and enables deployment in high-ambient environments such as engine compartments or enclosed industrial enclosures. Thermal design must ensure that actual junction temperature remains below this limit under worst-case conduction and switching conditions. The TUAU10MH datasheet specifies derating curves confirming 10A operation is sustainable up to 100°C ambient when mounted on a 16 mm × 16 mm Cu pad.

Is TUAU10MH AEC-Q101 qualified, and what tests does that cover?

Yes, the TUAU10MH is explicitly AEC-Q101 qualified per the manufacturer's documentation. This qualification includes stress testing for high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling (TC), and unbiased highly accelerated stress test (uHAST). These tests validate reliability for automotive power electronics, particularly in under-hood applications subject to thermal shock and prolonged elevated temperatures. The TUAU10MH's AEC-Q101 status is confirmed in its Features section and ordering information.

What is the reverse recovery time (t_rr) of TUAU10MH, and how is it measured?

The TUAU10MH has a reverse recovery time (t_rr) of 80 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per the Electrical Specifications table. This value reflects performance at room temperature and is critical for minimizing switching losses in high-frequency DC–DC converters. The 80 ns t_rr is specific to the TUAU10MH variant (1000V grade); lower-voltage variants like TUAU10DH have shorter t_rr (≤50 ns), confirming voltage–speed trade-off behavior inherent to the device family.

Does TUAU10MH support automated optical inspection (AOI) during SMT assembly?

Yes, the TUAU10MH supports automated optical inspection due to its wettable flank lead structure - a feature explicitly listed in its Features section. The matte tin-plated side terminals extend below the package body, enabling camera-based solder fillet inspection on both top and bottom surfaces after reflow. This capability is reinforced by its MSL-1 rating (per J-STD-020), eliminating pre-bake requirements and ensuring consistent solder joint quality in high-volume automotive manufacturing lines.

What is the forward voltage drop of TUAU10MH at rated current and temperature?

The TUAU10MH exhibits a typical forward voltage (V_F) of 1.51 V at 10 A and 25°C, with a maximum of 1.9 V under the same conditions. At elevated junction temperature (125°C), V_F drops to 1.21 V (typical), reflecting the negative temperature coefficient of silicon rectifiers. This behavior is documented in the Electrical Specifications table and impacts thermal runaway analysis - designers must account for reduced V_F at high temperature when calculating total conduction loss and system efficiency.