onsemi MBRB2535CTLG

Product Summary MBRB2535CTLG Schottky Barrier Diode

The MBRB2535CTLG from onsemi represents a modern solution for power rectification in demanding electronic systems. As a high-current Schottky Barrier Rectifier array, this device is engineered for efficient rectification in low voltage, high frequency switching power supplies, freewheeling diode circuits, and polarity protection applications. Housed in the industry-standard D²PAK (TO-263-3, TO-263AB) surface mount package, the MBRB2535CTLG combines robust 35V reverse voltage tolerance with a hefty 25A forward current capacity, positioning it as a reliable component for power electronics engineers striving to optimize board-level efficiency and reliability.

Main Attributes and Benefits of the MBRB2535CTLG

Several features set the MBRB2535CTLG apart for both design and procurement engineers evaluating high-performance rectification components. The device incorporates state-of-the-art metal-to-silicon Schottky barrier construction, epitaxial processing, and oxide passivation, ensuring both high efficiency and durability. Its center-tap configuration and low forward voltage are particularly well-suited for power conversion topologies where minimizing conduction losses is critical. Additional mechanical and electrical protections, including integrated stress guarding and a highly reliable epoxy enclosure rated UL 94 V-0, support long-term operation in harsh conditions. The short heatsink tab further simplifies thermal design and mounting, while automotive applications are directly addressed through AEC-Q101 qualification and PPAP capability, especially in the device’s NRVBB2535CTLG variant. Moreover, all packages are manufactured lead-free, ensuring compliance with global environmental directives.

Use Cases and Design Insights for the MBRB2535CTLG

The MBRB2535CTLG’s performance characteristics make it a natural choice for engineers tackling high-reliability power conversion challenges. The device’s 35V reverse voltage and 25A total current rating (12.5A per leg in its dual configuration) are matched to the requirements of modern low-voltage, high-frequency switching power supplies found in server, telecom, and industrial automation platforms. Its low forward voltage drop reduces conduction losses in synchronous rectification or output rectifier roles, translating to cooler operation and higher system efficiency. In automotive systems, its AEC-Q101 qualification supports integration into safety-critical designs such as electric drivetrains, engine control modules, and ADAS systems. For design engineers, attention to the device’s current derating and proper heatsinking is advised to ensure operation within specified limits, especially in pulsed or elevated-temperature environments.

Physical and Environmental Specifications of the MBRB2535CTLG

Engineered for robust performance, the MBRB2535CTLG leverages a molded epoxy case meeting the UL 94 V-0 standard for flame retardance, confirming its aptitude for use in safety-conscious industries. At just 1.7 grams, the surface mount D²PAK (CASE 418B) provides a compact footprint for dense board layouts, while the corrosion-resistant finish ensures long-term integrity of solder joints, even in hostile operating environments. The device adheres to MSL1 standards for moisture sensitivity, enabling simplified manufacturing and storage logistics. ESD protection ratings of over 8000V (HBM) and over 400V (MM) further attest to its resilience during assembly and operation.

Electrical Characteristics and Thermal Ratings of the MBRB2535CTLG

The MBRB2535CTLG’s electrical performance is defined by a 35V maximum reverse voltage rating and a forward current capacity of 25A, split across two legs in a common cathode configuration. The device’s low forward voltage—characteristic of Schottky barrier diodes—minimizes power dissipation. It operates reliably with a maximum junction temperature of 125°C, suitable for modern demanding power electronics. For soldering, the device can withstand 260°C for up to 10 seconds on the leads and mounting surface, ensuring compatibility with standard lead-free reflow processes. Detailed pulse test parameters and current derating data are available for engineers performing rigorous thermal and stress analyses.

Package Specifications and Soldering Instructions for the MBRB2535CTLG

The MBRB2535CTLG is delivered in the D²PAK (TO-263-3) package, a widely supported standard enabling straightforward migration from TO-220 designs while retaining surface mount production advantages. The short, non-sheared heatsink tab facilitates efficient board-level heat dissipation and mechanical stability. Precise package dimensions adhere to ANSI Y14.5M standards, with recommended PCB footprints supporting automated assembly. Soldering best practices for Pb-free applications are documented in the onsemi Soldering and Mounting Techniques Reference Manual, ensuring optimal joint performance for high-reliability installations.

Alternative or Substitute Models for the MBRB2535CTLG

When considering drop-in replacements or alternatives to the MBRB2535CTLG, engineers should evaluate parameters such as reverse voltage, forward current rating, package type, and certification requirements. Devices within the onsemi NRVBB2535CTLG family provide automotive-grade versions with the same core performance attributes. For non-automotive applications, other Schottky rectifiers in the 25A, 35V TO-263 package class from established manufacturers may also be suitable, provided they meet the same thermal and electrical benchmarks. Always consult the most current datasheets and reference designs to ensure full compatibility and compliance with application-specific standards.

Conclusion

: Why Choose the MBRB2535CTLG for Next-Generation Power Systems

The onsemi MBRB2535CTLG Schottky Barrier Rectifier delivers an optimal mix of efficiency, reliability, and integration flexibility for design engineers building advanced power supply systems. Its robust package, high-current capability, and industry-standard compliance make it a compelling choice for low-voltage rectification in both industrial and automotive contexts. Supported by comprehensive mechanical, electrical, and environmental documentation, the MBRB2535CTLG stands out as a future-proof selection for power electronics platforms where minimizing loss and maximizing reliability are at a premium.