Analog, mixed-signal


Ny serie af dioder i PMDE-pakninger

Ny serie af dioder i PMDE-pakninger

ROHM lancerer 14 nye dioder (SBD/FRD/TVS) i en PMDE pakning, som gør det muligt at opbygge mere kompakte beskyttelses- og switchingkredsløb (in english).

ROHM has added 14 new models to its PMDE package (2.5mm × 1.3mm) lineup – meeting the requirements for smaller protection and switching circuits.

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.

Going forward, ROHM will strive to further improve quality of its semiconductor devices, from low to high voltages while strengthening its distinctive lineup to further reduce power consumption and achieve greater package miniaturization.

The PMDE package offers the same electrical characteristics as the conventional SOD-123FL package in a smaller package size with ensuring better heat dissipation performance and mounting reliability. In addition, all automotive-compatible part numbers are qualified under the AEC-Q101 standard for automotive reliability. 

The products are in mass production and available through online distributors Digi-keyMouser, and Farnell AG.

28/4 2022
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