GBPC1508W

Overview

The onsemi GBPC1508W is a single-phase bridge rectifier from the GBPC15W series, designed for high-efficiency power conversion. It features an average forward current (IF(AV)) of 15 A at a case temperature of 55°C and supports a maximum repetitive reverse voltage (VRRM) of 800 V. The device handles a non-repetitive peak forward surge current (IFSM) of 300 A over an 8.3 ms half-sine wave. Electrical characteristics include a maximum forward voltage drop (VF) of 1.1 V at 7.5 A and a reverse leakage current (IR) of 5 µA at 25°C. Thermal performance is defined by a junction-to-case thermal resistance (RθJC) of 1.5 °C/W with a heatsink, allowing a power dissipation (PD) of 83.3 W. The component operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Integrally molded heat sink provides very low thermal resistance for maximum heat dissipation.
• Surge overload ratings support up to 300 A for robust transient handling.
• Provides isolated voltage from case to lead exceeding 2500 V for enhanced safety.
• Terminals are silver-plated, ensuring solderability per MIL-STD-208 standards.

Applications

• High-power AC/DC power supply designs
• Industrial motor drive rectification circuits
• Battery charging systems requiring high surge tolerance

Procurement Notes

Verify the specific ordering suffix 'W' during procurement to confirm the wire lead structure variant, as this affects physical mounting compatibility. Confirm that the package marking matches the part number exactly to avoid confusion with discontinued standard pin versions. Ensure compliance with RoHS directives and verify the UL certification number E258596 if required for end-product safety approvals.

Selection Notes

Select the GBPC1508W when the application requires an 800 V blocking capability combined with a 15 A continuous current rating. Consider the 300 A surge rating for inductive loads or transformer inrush currents. Evaluate the thermal resistance of 1.5 °C/W to determine if an external heatsink is necessary for maintaining the junction temperature below 150°C under full load conditions.

Part Context

This component belongs to the GBPC 12, 15, 25, and 35 series of glass-passivated bridge rectifiers manufactured by onsemi. The GBPC1508W specifically utilizes the GBPC-W package configuration, which distinguishes it from the standard GBPC package through its wire lead structure. This series is engineered for general-purpose rectification in demanding industrial and commercial environments.

Replacement Considerations

The datasheet lists the standard GBPC1508 (without the 'W' suffix) as discontinued. Designers replacing older units should verify if the wire leads of the GBPC1508W are compatible with existing PCB footprints originally designed for the standard GBPC terminal style.

FAQ

What does the 'W' suffix indicate in the GBPC1508W part number?

The 'W' suffix indicates that the device features a wire lead structure, distinguishing it from the standard GBPC package which typically uses different terminal configurations.

Is the GBPC1508W suitable for high-temperature environments?

Yes, the device is rated for an operating junction temperature range of -55°C to +150°C, making it suitable for high-temperature applications provided thermal management is adequate.

What is the maximum RMS bridge input voltage for this component?

The maximum RMS bridge input voltage is 560 V, corresponding to its 800 V peak repetitive reverse voltage rating.