Taiwan Semiconductor Corporation GBPC2508M

Overview

GBPC2508M from Taiwan Semiconductor is a 25A, 800V standard bridge rectifier in GBPC-M package with quad configuration, glass-passivated junctions, and integrally molded heatsink for low thermal resistance (1.5°C/W); used in AC-DC converters and switching mode power supplies requiring high surge current capability (400A IFSM) and low reverse leakage (<5µA).

For engineers reviewing the GBPC2508M datasheet, GBPC2508M pinout, GBPC2508M application, or GBPC2508M equivalent, key selection criteria include peak reverse voltage (800V), average forward current (25A), thermal resistance (1.5°C/W), surge rating (400A), and GBPC-M terminal orientation where cathode is parallel to anode.

Technical Context

This discrete bridge rectifier integrates four silicon diodes in a single-phase full-wave configuration with glass-passivated junctions for enhanced reliability and moisture resistance. Its GBPC-M mechanical design features matte tin-plated leads, UL 94V-0 molding compound, and a heatsink-integrated case enabling direct mounting to external heat sinks.

The device operates across -55°C to +150°C junction temperature range and meets JESD201 Class 1A whisker resistance. It delivers stable forward voltage of ≤1.1V at rated current and exhibits typical reverse current <0.2µA at 25°C - critical for low-loss power conversion stages.

Key Specifications

Pinout & Package

GBPC2508M uses the GBPC-M package: a molded, heatsink-integrated quad bridge rectifier with four terminals - two AC inputs and one common anode and one common cathode. The cathode terminal is oriented parallel to the anode terminal, distinguishing it from GBPC-W (wire) and standard GBPC variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBPC2508M, Vishay GBPC2508 requires board layout changes due to differing terminal geometry, while ON Semiconductor GBPC2508 offers true mechanical and electrical equivalence - making it suitable for seamless qualification and dual-sourcing without revalidation.

Availability

GBPC2508M is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, switched-mode power supply front-ends, and medical equipment power modules requiring stable component supply, long-lifecycle support, and traceable sourcing.

Supply support for GBPC2508M 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 semiconductor manufacturer specializing in discrete power devices, rectifiers, and protection components for industrial and consumer applications.

The GBPC series was designed specifically for high-current, high-reliability AC-DC conversion in space-constrained power supplies - emphasizing thermal performance, surge robustness, and regulatory compliance.

FAQ

What is the maximum junction temperature rating for GBPC2508M?

The GBPC2508M has a maximum junction temperature (TJ) rating of +150°C, allowing operation in high-ambient environments such as enclosed power supplies or industrial control cabinets. This rating is maintained across its full current and voltage operating range, provided thermal resistance to heatsink (RθJC = 1.5°C/W) is respected in layout and mounting. GBPC2508M must not exceed this limit to ensure long-term reliability and avoid parametric drift.

Does GBPC2508M have UL recognition?

Yes, GBPC2508M is UL Recognized under File # E-326243, confirming compliance with UL 60747-1 for discrete semiconductors. This recognition applies to the GBPC-M package variant and covers flammability (UL 94V-0), terminal plating (J-STD-002 solderability), and mechanical construction. GBPC2508M's UL status supports certification of end equipment in North America and other regions accepting UL equivalency.

What is the forward voltage drop specification for GBPC2508M?

The GBPC2508M specifies a maximum forward voltage (VF) of 1.1 V per diode at IF = 12.5 A and TJ = 25°C, measured under pulse conditions (PW = 0.3 ms). This value reflects conduction loss in each of the four internal diodes during full-wave rectification. At elevated temperatures or higher currents, VF increases slightly but remains within design margins for efficient power conversion in GBPC2508M-based supplies.

How is the GBPC-M package different from standard GBPC?

The GBPC-M package differs from standard GBPC by orienting the cathode terminal parallel to the anode terminal - enabling compact, linear heatsink mounting. Standard GBPC places cathode perpendicular to anode. GBPC2508M also features identical mechanical dimensions and thermal performance (RθJC = 1.5°C/W) but requires distinct PCB footprint and mounting torque (≤20 in-lbs). This orientation simplifies mechanical integration in constrained layouts.

What is the peak surge current rating for GBPC2508M?

The GBPC2508M is rated for a non-repetitive peak forward surge current (IFSM) of 400 A for an 8.3 ms single half-sine wave at 25°C ambient. This rating ensures reliable handling of inrush currents during power-up and transient overloads in AC-DC conversion stages. The corresponding I²t rating is 664 A²s, which informs fuse selection and system-level surge protection design when using GBPC2508M in mission-critical power circuits.