Taiwan Semiconductor Corporation GBPC2508

Overview

GBPC2508 from Taiwan Semiconductor is a 25A, 800V standard single-phase bridge rectifier in GBPC package with quad configuration, glass-passivated junctions, and integrally molded heatsink; used in AC-DC conversion stages of industrial power supplies and SMPS where high surge tolerance and low thermal resistance are required.

For engineers reviewing the GBPC2508 datasheet, GBPC2508 pinout, GBPC2508 application, or GBPC2508 equivalent, key selection factors include peak reverse voltage (800 V), average forward current (25 A), forward voltage drop (≤1.1 V at 12.5 A), junction-to-case thermal resistance (1.5 °C/W), and UL recognition (E-326243).

Technical Context

This device integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling unidirectional DC output from AC input without external wiring. Its glass-passivated junction ensures stable leakage performance (IR ≤ 5 µA at rated VR) and long-term reliability under thermal cycling.

The GBPC2508 uses an integrally molded heatsink structure with UL 94V-0 compliant compound and matte tin-plated leads. It supports 300 A non-repetitive surge current (8.3 ms half-sine) and operates across –55°C to +150°C junction temperature range.

Key Specifications

Pinout & Package

GBPC2508 is housed in the standard GBPC through-hole package: a 4-terminal, quad-diode bridge with integrated heatsink base, 29.0 × 19.1 mm footprint, and cathode-indicated marking on the molded case. 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 GBPC2508, the Vishay variant offers identical performance and mechanical fit, while the ON Semiconductor version trades minimal forward voltage increase for broader distribution channel access-both maintain UL recognition and thermal behavior within design margins.

Availability

GBPC2508 is available at Aetrix Electronics and suitable for industrial SMPS, AC-DC front-end converters, and motor drive auxiliary power supplies requiring stable component supply, long lifecycle assurance, and traceable sourcing.

Supply support for GBPC2508 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 industrial, computing, and consumer markets since 1979.

The GBPC series was designed specifically for high-reliability AC-DC rectification in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and safety certification readiness.

FAQ

What is the maximum junction temperature rating for GBPC2508?

The GBPC2508 has a maximum junction temperature (TJ max) of +150°C, as specified in its absolute maximum ratings table. This rating defines the upper thermal limit for safe semiconductor operation. Engineers must ensure that actual junction temperature-calculated using RθJC (1.5 °C/W), power dissipation, and heatsink conditions-remains below this value during all operating conditions. GBPC2508's thermal design supports sustained operation in high-ambient industrial environments when properly mounted.

Does GBPC2508 require a heatsink for 25 A continuous operation?

Yes, GBPC2508 requires mechanical mounting to a heatsink or metal chassis to sustain 25 A average forward current. Its RθJC of 1.5 °C/W means even at moderate power dissipation (e.g., ~28 W at 1.1 V × 25 A), junction temperature rise can exceed safe limits without external thermal management. The integrally molded heatsink base is designed for direct thermal interface-mounting torque must not exceed 20 in-lbs to avoid cracking. GBPC2508's thermal performance is validated only when properly affixed.

Is GBPC2508 UL recognized and RoHS compliant?

Yes, GBPC2508 is UL Recognized under file #E-326243 and fully RoHS compliant per EU Directive 2011/65/EU. These certifications are explicitly stated in the official Taiwan Semiconductor datasheet (Version M2211). UL recognition confirms compliance with UL 60950-1/62368-1 for end-product safety evaluations, while RoHS compliance guarantees absence of lead, mercury, cadmium, and other restricted substances. GBPC2508 also meets JESD201 Class 1A whisker testing.

What does the "08" suffix indicate in GBPC2508?

The "08" in GBPC2508 denotes the device's peak repetitive reverse voltage rating of 800 V. Per Taiwan Semiconductor's ordering nomenclature, the numeric suffix maps to voltage grades: "005" = 50 V, "01" = 100 V, "02" = 200 V, "04" = 400 V, "06" = 600 V, "08" = 800 V, and "10" = 1000 V. Thus, GBPC2508 is the 25 A, 800 V variant within the GBPC15/25/35 family, sharing package, thermal, and surge characteristics with other members.

Can GBPC2508 be used in place of GBPC2506 or GBPC2510?

No-GBPC2508 is not interchangeable with GBPC2506 (600 V) or GBPC2510 (1000 V) without circuit review. While all share identical current rating (25 A), package, and thermal specs, their VRRM differs: substituting GBPC2508 for GBPC2510 risks reverse breakdown under 1000 V transients, and using it instead of GBPC2506 may over-specify voltage margin unnecessarily. Each variant is optimized for specific line-voltage and surge profiles; GBPC2508 is validated for 800 V blocking applications.