ROHM announced the expansion of its PMDE package (2.5mm × 1.3mm) lineup with 14 new models, addressing the need for smaller protection and switching circuits. (RBxx8 series, RFN series, VS series)

Diodes are used for rectification, protection and switching circuit in a wide range of applications such as automotive, industrial, and consumer fields. Additionally, there is an increasing need to reduce package size to minimize mounting area. At the same time, higher performance is required to reduce power consumption.

However, when decreasing package size the surface area of the backside electrode and mold also becomes smaller, resulting in lower heat dissipation. To solve this disadvantage, ROHM’s PMDE package improves heat dissipation performance by expanding the backside electrode and optimizing the heat dissipation path.

This achieves the same electrical characteristics as those of conventional packages in a smaller package size.

ROHM’s proprietary compact PMDE package features a land pattern equivalent to that of the conventional SOD-323 type. Reviewing the backside electrode and heat dissipation path allowed ROHM to achieve the same electrical characteristics (i.e. current, withstand voltage) as the standard SOD-123FL package (3.5mm × 1.6mm) in a smaller package size, contributing to board miniaturization by reducing mounting area by approximately 42%. Furthermore, mechanical strength is around 1.4 times higher than that of the SOD-123FL, reducing the risk of solder cracking when stress is applied to the board, ensuring greater mounting reliability.

The PMDE package lineup consists of 8 models in the RBxx8 series of Schottky barrier diodes (SBDs), 2 models in the RFN series of fast recovery diodes (FRDs), and 2 models in the VS series of transient voltage suppressors (TVSs). A variety of circuit applications can be achieved with compact diodes.

ROHM announces expanded lineup of compact PMDE packaged diodes (SBD/FRD/TVS)-SemiMedia

For more information, pleas visit RBxx8 Series, RFN Series, VS Series