Taiwan Semiconductor Corporation GBPC1508M

Overview

GBPC1508M from Taiwan Semiconductor is a 15A, 800V standard bridge rectifier in GBPC-M package with quad configuration, glass-passivated junctions, and integral heatsink for low thermal resistance (1.5°C/W). It delivers ≤1.1V forward voltage at 7.5A and <5μA reverse current at rated voltage, used in AC-DC conversion stages of industrial SMPS.

For engineers reviewing the GBPC1508M datasheet, GBPC1508M pinout, GBPC1508M application, or GBPC1508M equivalent, key selection factors include peak repetitive reverse voltage (800V), average forward current (15A), surge capability (300A @ 8.3ms), thermal resistance (1.5°C/W), and GBPC-M terminal orientation.

Technical Context

This discrete bridge rectifier integrates four silicon diodes in a single molded package with cathode and anode terminals arranged parallel per GBPC-M mechanical specification. Its glass-passivated junction ensures stable leakage performance across temperature, while the integrally molded heatsink enables direct mounting to external heat sinks without additional thermal interface layers.

The device operates within -55°C to +150°C junction range and supports RMS input voltages up to 560V. It meets UL 94V-0 flammability rating and JESD201 Class 1A whisker resistance, making it suitable for high-reliability industrial power conversion where thermal management and long-term stability are critical.

Key Specifications

Pinout & Package

GBPC1508M uses the GBPC-M package: a molded quad bridge with matte tin-plated leads, cathode terminal oriented parallel to anode terminal, and integrated heatsink base compliant with UL 94V-0. Mounting torque must not exceed 20 in-lbs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBPC1508M, GBU15K offers superior thermal performance but demands external heatsinking, while KBP1508 provides drop-in mechanical compatibility at minor trade-offs in leakage and conduction loss.

Availability

GBPC1508M is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, AC-DC front-end converters, and uninterruptible power supply inputs requiring stable component supply and long-term lifecycle support.

Supply support for GBPC1508M 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 power devices and protection components.

The GBPC series was designed specifically for high-reliability AC-DC conversion in industrial, telecom, and consumer power systems-emphasizing thermal robustness, surge resilience, and regulatory compliance.

FAQ

What is the maximum junction temperature rating for GBPC1508M?

The GBPC1508M has a maximum junction temperature (TJ) rating of +150°C, with operational range from -55°C to +150°C. This rating enables reliable operation in high-ambient industrial environments when mounted to an appropriate heatsink. Thermal derating curves in the datasheet define safe current limits above 25°C ambient, and the 1.5°C/W RθJC value must be used with case temperature measurements to verify actual junction temperature in application.

Does GBPC1508M have UL recognition?

Yes, GBPC1508M is UL Recognized under File # E-326243. This certification confirms compliance with UL 60950-1 and UL 62368-1 for use in end equipment requiring safety agency approval. The GBPC-M package's UL 94V-0 molding compound further supports flame-retardant system design, and the device is RoHS compliant and qualified to JESD201 Class 1A for tin whisker resistance.

What does the "M" suffix in GBPC1508M indicate?

The "M" suffix in GBPC1508M denotes the GBPC-M mechanical variant: a quad bridge rectifier with cathode and anode terminals oriented parallel to each other, optimized for vertical heatsink mounting. This differs from GBPC-W (wire leads) and standard GBPC (horizontal terminals). The M variant includes matte tin-plated leads solderable per J-STD-002 and supports mounting torque up to 20 in-lbs.

How is the forward voltage specified for GBPC1508M?

The forward voltage (VF) for GBPC1508M is specified as ≤1.1 V per diode at IF = 7.5 A and TJ = 25°C, measured under pulse test conditions (PW = 0.3 ms). This value reflects conduction loss in one diode path during half-cycle conduction. Total bridge VF is effectively twice this value under full-wave operation, directly impacting system efficiency and thermal design in continuous-duty applications.

What is the surge current rating of GBPC1508M and how is it tested?

GBPC1508M has a peak forward surge current (IFSM) rating of 300 A, tested using an 8.3 ms single half-sine wave superimposed on rated load. This rating defines the device's ability to survive short-duration overcurrent events such as AC line inrush or fault transients. The corresponding I²t rating is 373 A²s, which quantifies thermal energy absorption capacity and is used for fuse coordination and protection circuit design.