Taiwan Semiconductor Corporation TUAU10DH

Overview

TUAU10DH from Taiwan Semiconductor is a 10A, 200V AEC-Q101-qualified surface-mount ultrafast rectifier in TO-277A (SMPC4.6U) package, featuring 0.89V forward voltage at 10A/25°C, 50ns reverse recovery time, and 150A surge capability - deployed in automotive DC-DC converters and freewheeling circuits.

For engineers reviewing the TUAU10DH datasheet, TUAU10DH pinout, TUAU10DH application, or TUAU10DH equivalent, key selection criteria include V_RRM = 200V, I_F = 10A continuous, t_rr ≤ 50ns, R_θJL = 5.0°C/W, and wettable flank terminals for automated optical inspection in high-reliability automotive PCB assembly.

Technical Context

The TUAU10DH is a single-die, glass-passivated silicon rectifier optimized for high-efficiency switching power supplies requiring fast recovery and low conduction loss. Its 200V V_RRM, 175°C max junction temperature, and JESD201 Class 2 whisker resistance support under-hood automotive environments.

Thermal performance is defined by R_θJL = 5.0°C/W and R_θJA = 45°C/W on a 16mm × 16mm Cu pad, enabling compact layout in space-constrained modules. Reverse leakage remains ≤5µA at 25°C and ≤12µA at 125°C, ensuring stable blocking in snubber networks.

Key Specifications

Pinout & Package

Package: TO-277A (SMPC4.6U), surface-mount, single-anode/single-cathode configuration with cathode band polarity marking and wettable flank leads for solder-joint inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast rectifier applications.

Compared with VS-10EWH02-M3 and MUR1020CT, the TUAU10DH uniquely combines AEC-Q101 qualification, wettable flank leads, and 150A surge rating in a surface-mount TO-277A package - making it optimal for production automotive power modules where reliability, manufacturability, and transient robustness are jointly critical.

Availability

TUAU10DH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp drivers, and snubber networks requiring stable component supply across extended temperature ranges and high-volume production cycles.

Supply support for TUAU10DH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.

The TUAU10xH series targets high-reliability automotive power conversion, delivering AEC-Q101-compliant ultrafast rectifiers optimized for thermal efficiency, manufacturability, and transient resilience in engine control units and lighting systems.

FAQ

What is the maximum junction temperature rating for the TUAU10DH?

The TUAU10DH has a maximum junction temperature (T_J) rating of +175°C, verified per AEC-Q101 stress testing. This allows uninterrupted operation in under-hood automotive environments where ambient temperatures exceed 125°C. The device maintains rated electrical performance up to this limit when thermal design adheres to the specified R_θJL = 5.0°C/W and PCB copper pad requirements. Derating is not required below 175°C.

Does the TUAU10DH meet automotive qualification standards?

Yes, the TUAU10DH is AEC-Q101 qualified, confirming compliance with stress tests including high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock per JESD47. It also meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 - eliminating bake requirements before reflow. These qualifications are explicitly documented for the TUAU10DH variant in Taiwan Semiconductor's official A2111 datasheet revision.

What is the reverse recovery time (t_rr) specification for the TUAU10DH?

The TUAU10DH has a maximum reverse recovery time (t_rr) of 50 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is confirmed in the Electrical Specifications table of the official datasheet and applies specifically to the TUAU10DH variant. It enables efficient operation in switching power supplies operating up to 300 kHz while limiting switching losses and EMI generation.

Is the TUAU10DH compatible with lead-free reflow processes?

Yes, the TUAU10DH features matte tin-plated leads compliant with J-STD-002 solderability requirements and rated for standard lead-free reflow profiles (peak temperature ≤ 260°C). Its MSL Level 1 rating per J-STD-020 means no pre-bake is required, and its UL 94V-0 molding compound withstands multiple reflow cycles without delamination or cracking. These attributes are validated for the TO-277A package used by the TUAU10DH.

What does the "DH" suffix indicate in the TUAU10DH part number?

The "DH" suffix in TUAU10DH explicitly denotes the 200V repetitive peak reverse voltage (V_RRM) rating, as confirmed in the Absolute Maximum Ratings table where TUAU10DH is listed with V_RRM = 200 V. This distinguishes it from other variants in the same family (e.g., TUAU10GH = 400V, TUAU10MH = 1000V). The "D" code corresponds to the 200V grade per Taiwan Semiconductor's internal ordering nomenclature.