Taiwan Semiconductor Corporation GBU1001

Overview

GBU1001 from Taiwan Semiconductor is a 10A, 50V standard bridge rectifier in GBU package, featuring quad-diode configuration, 220A surge current capability, 1.1V max forward voltage at 10A/25°C, and <0.1μA typical reverse leakage at 25°C - used in low-voltage AC/DC front-end conversion for compact adapters.

For engineers reviewing the GBU1001 datasheet, GBU1001 pinout, GBU1001 application, or GBU1001 equivalent, key selection criteria include VRRM=50V rating, IFSM=220A surge tolerance, RθJC=2°C/W thermal resistance, UL recognition (E-326243), and AEC-Q101 qualification availability (GBU1001H variant).

Technical Context

The GBU1001 integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals. Its 50V repetitive peak reverse voltage (VRRM) and 35V RMS reverse voltage define its use in low-voltage AC inputs, while the 220A non-repetitive surge rating supports transient line events in universal-input adapters.

Thermally, it delivers RθJA=21°C/W (free-air) and RθJC=2°C/W, enabling direct heatsink mounting via case contact. Electrical behavior is characterized by VF ≤1.1V at 10A/25°C and IR ≤5μA at rated VR/25°C - critical for efficiency and standby power compliance in Class VI designs.

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 GBU10K and KBU1001, the GBU1001 offers tighter reverse leakage (<5μA), halogen-free construction, and direct AEC-Q101 qualification path - making it preferable for safety-critical, thermally constrained, or automotive-adjacent industrial power supplies.

Availability

GBU1001 is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, LED drivers, and industrial control power modules requiring stable component supply, long-lifecycle sourcing, and UL-recognized safety compliance.

Supply support for GBU1001 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 industrial, computing, and consumer markets since 1979.

The GBU series belongs to TSC's standard bridge rectifier product line, engineered for high-reliability AC/DC front-end conversion in cost-sensitive, space-constrained power supplies where safety certification, thermal performance, and surge robustness are essential.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) of the GBU1001?

The GBU1001 has a VRRM of 50 V, meaning it can safely block up to 50 volts of reverse voltage repeatedly without breakdown. This rating corresponds to a 35V RMS AC input, making it ideal for low-voltage transformer-fed applications such as 24VAC control circuits or compact adapters. The GBU1001 datasheet confirms this value under absolute maximum ratings at TA = 25°C.

Does the GBU1001 have AEC-Q101 qualification?

The base GBU1001 is not AEC-Q101 qualified, but the GBU1001H variant is explicitly listed as AEC-Q101 qualified in Taiwan Semiconductor's ordering information. This qualification covers stress tests including HTSL, TC, and UHAST, validating suitability for automotive power supply modules. Always specify 'H' suffix when automotive-grade reliability is required for the GBU1001.

What is the thermal resistance from junction to case (RθJC) for the GBU1001?

The GBU1001 has a junction-to-case thermal resistance (RθJC) of 2°C/W, measured under standard test conditions. This low value enables effective heat transfer from the silicon die to the external heatsink or PCB copper area, supporting reliable 10A continuous operation even in confined spaces. The GBU1001's GBU package design facilitates direct metal contact for thermal management.

How does the GBU1001 compare to the GBU1002 in terms of voltage rating?

The GBU1001 is rated for 50V VRRM, while the GBU1002 is rated for 100V VRRM - double the reverse blocking capability. Both share identical current ratings (10A IF, 220A IFSM), package (GBU), and thermal specs. Select GBU1001 only for applications where input voltage remains ≤35V RMS; exceeding this risks reverse breakdown. The GBU1001 datasheet clearly distinguishes these ratings in its absolute maximum table.

Is the GBU1001 lead-free and RoHS compliant?

Yes, the GBU1001 is RoHS compliant and halogen-free per IEC 61249-2-21, with matte tin-plated leads that meet J-STD-002 solderability standards. Taiwan Semiconductor confirms this in the "Features" and "Ordering Information" sections of the GBU1001 datasheet. No exemptions are applied, and the device carries full RoHS 2011/65/EU conformance documentation.