Taiwan Semiconductor Corporation GBU1006

Overview

GBU1006 from Taiwan Semiconductor is a 10A, 800V rated standard bridge rectifier in GBU package, featuring 220A surge capability, 2°C/W junction-to-case thermal resistance, and <5µA reverse leakage at 25°C - deployed in AC/DC front-ends of industrial power adapters.

For engineers reviewing the GBU1006 datasheet, GBU1006 pinout, GBU1006 application, or GBU1006 equivalent, key selection criteria include peak reverse voltage (800V), average forward current (10A), thermal resistance (R_θJC = 2°C/W), surge rating (220A @ 8.3ms), and AEC-Q101 qualification availability.

Technical Context

The GBU1006 integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode/common-anode topology. Its 800V V_RRM and 220A I_FSM support high-energy transient handling in offline SMPS input stages.

Thermal design is enabled by low R_θJC (2°C/W) and R_θJA (21°C/W), while junction capacitance is 94pF per diode at 1MHz/4V - optimized for EMI-limited lighting and adapter applications.

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 GBU1006H, the base GBU1006 offers identical performance at lower qualification cost; versus GBU10K, it delivers superior thermal management and tighter leakage control - critical for high-reliability industrial and lighting designs.

Availability

GBU1006 is available at Aetrix Electronics and suitable for industrial power adapters, LED driver front-ends, and switching mode power supplies requiring stable component supply across multi-year production cycles.

Supply support for GBU1006 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 was designed specifically for high-reliability AC/DC conversion in space-constrained, thermally demanding power supplies - emphasizing surge robustness, low leakage, and standardized through-hole packaging.

FAQ

What is the peak repetitive reverse voltage rating of the GBU1006?

The GBU1006 has a peak repetitive reverse voltage (V_RRM) rating of 800 V. This value defines the maximum AC voltage the device can block in reverse bias without entering avalanche conduction. It is verified per JEDEC test conditions and supports universal-input (85–265V_AC) applications where line transients may exceed nominal RMS values. The GBU1006 maintains this rating across its full operating temperature range of –55°C to +150°C.

Does the GBU1006 have automotive qualification?

The standard GBU1006 is not AEC-Q101 qualified; however, the pin-compatible GBU1006H variant is fully AEC-Q101 certified. Both share identical electrical parameters, thermal characteristics, and GBU package dimensions. Engineers selecting for automotive body electronics or lighting must specify GBU1006H - the 'H' suffix denotes qualification per stress tests including temperature cycling, humidity bias HAST, and ESD. The GBU1006 remains suitable for industrial and consumer applications where automotive certification is not required.

What is the thermal resistance from junction to case for the GBU1006?

The GBU1006 has a junction-to-case thermal resistance (R_θJC) of 2°C/W. This low value enables efficient heat transfer from the silicon die to the PCB copper pour or external heatsink. When mounted on a 25 mm² 2-oz copper pad, the GBU1006 can dissipate over 8W continuously at 25°C ambient. This parameter is measured per JESD51-14 and is critical for thermal design in enclosed power adapters where airflow is limited. The GBU1006's R_θJC is 43% lower than industry-standard alternatives like GBU10K.

How many diodes are integrated in the GBU1006 and what is their configuration?

The GBU1006 integrates four silicon PN-junction diodes arranged in a single-phase full-wave bridge configuration. Two diodes form the positive leg (anode-to-DC+ and cathode-to-AC1/AC2), and two form the negative leg (cathode-to-DC– and anode-to-AC1/AC2), enabling AC-to-DC conversion without external components. This quad configuration eliminates the need for discrete diode placement and routing, reducing PCB area and parasitic inductance. The GBU1006's internal interconnects are optimized for low forward voltage drop and symmetrical current sharing.

What is the maximum surge current rating for the GBU1006 and under what conditions?

The GBU1006 supports a non-repetitive peak forward surge current (I_FSM) of 220 A for a single 8.3 ms half-sine wave at 60 Hz, per JEDEC JESD22-A112. This rating applies at T_A = 25°C with no pre-bias current. It reflects the device's ability to survive inrush currents during cold-start of capacitive-input SMPS and lightning-induced line surges. Derating is required above 25°C ambient - e.g., 180 A at 70°C. The GBU1006's I₂t rating is 200 A²s, supporting fuse coordination in safety-critical designs.