Taiwan Semiconductor Corporation GBLA10

Overview

GBLA10 from Taiwan Semiconductor is a 4A, 1000V repetitive peak reverse voltage (VRRM) standard bridge rectifier in GBL package, featuring quad diode configuration, glass passivated junctions, and UL Recognized File # E-326243 compliance. It delivers 120A surge current handling and operates up to +150°C junction temperature, suited for high-reliability AC/DC conversion in industrial power supplies.

For engineers reviewing the GBLA10 datasheet, GBLA10 pinout, GBLA10 application, or GBLA10 equivalent, key selection criteria include its 1000V VRRM rating, 4A average forward current at TC = 50°C, 40pF junction capacitance per diode at 1MHz/4V, AEC-Q101 qualification option (GBLA10H), and GBL surface-mount-compatible leadframe package.

Technical Context

The GBLA10 implements a monolithic quad-diode bridge configuration with glass-passivated silicon junctions, enabling stable operation under high-voltage transient conditions. Its 1000V VRRM and 120A IFSM support robust surge immunity in line-powered systems.

Thermal performance is defined by 10°C/W junction-to-lead (RθJL) and 47°C/W junction-to-ambient (RθJA) resistance, validated under JEDEC-standard PCB mounting (0.5"×0.5" copper pads). Reverse leakage remains ≤500µA at TJ = 125°C, supporting high-temperature SMPS designs.

Key Specifications

Pinout & Package

Package: GBL - molded plastic case with matte tin-plated leads, UL 94V-0 rated, 2.00g 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 DF10M, the GBLA10 provides superior thermal performance (10°C/W RθJL), AEC-Q101 qualification path, and tighter reverse leakage control at elevated temperatures-making it optimal for space-constrained, high-reliability AC/DC front-ends.

Availability

GBLA10 is available at Aetrix Electronics and suitable for industrial switching power supplies, LED driver power stages, and AC/DC adapters requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for GBLA10 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, specializing in rectifiers, TVS diodes, MOSFETs, and power ICs.

The GBLA10 belongs to TSC's GBL-series standard bridge rectifier product line, engineered for high-voltage, high-current AC/DC conversion in cost-sensitive yet reliability-critical industrial and lighting applications.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) rating for the GBLA10?

The GBLA10 has a VRRM rating of 1000 V, meaning it can reliably block up to 1000 volts of repetitive reverse voltage across its AC terminals without breakdown. This rating is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version E2103) and applies specifically to the GBLA10 variant-not lower-voltage members of the GBLA family like GBLA06 or GBLA04. The GBLA10 maintains this rating across its full operating temperature range.

Does the GBLA10 have AEC-Q101 qualification, and how is it designated?

The base GBLA10 is not AEC-Q101 qualified, but Taiwan Semiconductor offers the GBLA10H variant which is fully AEC-Q101 qualified. The "H" suffix explicitly denotes qualification to the AEC-Q101 stress test standard for discrete semiconductors, covering tests such as high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress test (uHAST). GBLA10H shares identical electrical and thermal specifications with GBLA10 but adds automotive-grade reliability validation.

What is the junction capacitance (CJ) of the GBLA10, and why does it matter?

The GBLA10 exhibits a typical junction capacitance of 40 pF per diode at 1 MHz and VR = 4.0 V, as specified in the Electrical Specifications table. This low capacitance reduces displacement current and high-frequency noise generation during AC zero-crossing transitions, directly improving EMI performance in switch-mode power supplies. It also minimizes capacitive loading on upstream EMI filters, preserving filter effectiveness without requiring redesign.

How does the thermal performance of the GBLA10 compare between junction-to-lead and junction-to-ambient paths?

The GBLA10 has a junction-to-lead thermal resistance (RθJL) of 10°C/W and a junction-to-ambient resistance (RθJA) of 47°C/W under standard JEDEC PCB mounting (0.5"×0.5" copper pads). This 4.7× difference highlights that effective heat extraction relies heavily on conduction through the leads into copper pours or heatsinks-not ambient convection alone. Designers must prioritize low-impedance thermal paths from leads to PCB copper to realize the full benefit of the 10°C/W RθJL rating.

What packaging and marking information is associated with the GBLA10?

The GBLA10 is supplied in GBL package format, with 25 units per tube. Marking on the device reads "GBLA10", followed by "G" (green compound), a 3-digit date code (YWW), and factory code "F". The GBL case uses UL 94V-0 compliant molding compound, matte tin-plated leads compliant with J-STD-002 solderability, and passes JESD201 Class 2 whisker testing-ensuring robust assembly yield and long-term interconnect integrity.