Taiwan Semiconductor Corporation GBU1001H

Overview

GBU1001H from Taiwan Semiconductor is a 10A, 50V AEC-Q101-qualified standard bridge rectifier in GBU package, featuring 1500VRMS dielectric strength, 220A surge capability, and typical reverse leakage <0.1μA at 25°C - used in automotive-grade AC/DC front-ends and compact SMPS designs.

For engineers reviewing the GBU1001H datasheet, GBU1001H pinout, GBU1001H application, or GBU1001H equivalent, key selection criteria include its 50V repetitive peak reverse voltage, 10A average forward current rating, AEC-Q101 qualification status, thermal resistance (R_θJA = 21°C/W), and matte tin-plated solderable leads per J-STD-002.

Technical Context

The GBU1001H integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals. Its quad-diode layout enables direct AC-to-DC conversion without external interconnection, supporting high-density PCB layouts in space-constrained power supplies.

Designed for operation across –55°C to +150°C junction temperature range, it delivers stable forward voltage drop (≤1.1V at 10A, 25°C) and low reverse leakage (≤5µA at 25°C, rated VR), with junction-to-case thermal resistance of 2°C/W enabling efficient heat transfer to heatsinks or copper pours.

Key Specifications

Pinout & Package

Package: GBU - molded plastic case with matte tin-plated leads, UL 94V-0 rated, 4.0g weight, polarity marked on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU1001 (non-AEC) and GBU8K (8A/800V), the GBU1001H uniquely combines automotive qualification, 10A current handling, and 50V VRRM in a cost-optimized GBU footprint - making it optimal for entry-level automotive electronics and high-volume consumer adapters where reliability and regulatory alignment are critical.

Availability

GBU1001H is available at Aetrix Electronics and suitable for automotive LED drivers, USB-C PD adapters, and industrial PLC power supplies requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for GBU1001H 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 GBU series was developed specifically for high-reliability AC/DC front-end rectification in space-constrained, thermally demanding applications - emphasizing robust surge immunity, certified safety isolation, and automotive-grade process consistency.

FAQ

What is the peak repetitive reverse voltage rating of the GBU1001H?

The GBU1001H has a repetitive peak reverse voltage (VRRM) rating of 50 V. This value defines the maximum instantaneous reverse voltage the device can block repeatedly without breakdown. It is measured under standard test conditions (TA = 25°C) and applies to each internal diode pair in the bridge configuration. Designers must ensure that the peak AC input voltage does not exceed this rating to prevent catastrophic failure.

Is the GBU1001H pin-compatible with other GBU-series rectifiers like GBU1002H or GBU1004H?

Yes, the GBU1001H shares identical GBU package dimensions, lead spacing, and terminal assignment (AC1, AC2, +, –) with all GBU100xH variants. However, VRRM differs across the family (50V to 1000V), so substituting GBU1001H for higher-voltage variants risks reverse breakdown under normal operation. Mechanical compatibility does not imply electrical interchangeability.

Does the GBU1001H require a heatsink in typical 10A operation?

In free-air conditions at 25°C ambient, the GBU1001H's R_θJA of 21°C/W results in ~210°C junction rise at full 10A load - exceeding its +150°C limit. Therefore, a heatsink or substantial copper pour is required. With R_θJC = 2°C/W, mounting to a 10°C/W heatsink yields ~32°C rise, keeping TJ well within spec. Thermal design must account for actual ambient and airflow.

What does the "H" suffix signify in GBU1001H?

The "H" suffix in GBU1001H indicates full AEC-Q101 qualification per revision D, covering stress tests including HTSL, TC, UHAST, and mechanical shock. This distinguishes it from the standard GBU1001, which lacks automotive qualification documentation. The "H" variant undergoes additional screening and lot traceability, making it suitable for production automotive electronics.

How does the GBU1001H perform at elevated temperature, such as 125°C junction?

At TJ = 125°C, the GBU1001H exhibits increased reverse leakage (IR ≤ 500 µA per diode) and slightly higher forward voltage (VF remains ≤1.1V at 10A). Its 10A average current rating is derated linearly above 25°C ambient - e.g., ~6.5A at 70°C case temperature per the forward current derating curve. These values are validated in TSC's official datasheet Version M2103.