ROHM launches small PMDE packaged diode products

     In order to meet the miniaturization requirements of protection circuit and switch circuit in various applications such as vehicle mounted equipment, industrial equipment and consumer electronic equipment, ROHM introduced PMDE package (2.5mm × 1.3mm). This time, 14 new models are added to the product lineup.

     From vehicle mounted equipment to industrial equipment and consumer electronic equipment, diodes are widely used for circuit rectification, protection and switching. In order to reduce the installation area, it is required to reduce the package size of diodes. In addition, in these applications, higher performance diodes are needed to reduce power consumption. On the other hand, when the package size of the diode is reduced, the back electrode and molded surface area will also be reduced, which will lead to poor heat dissipation. In this regard, the PMDE package of ROHM improves the heat dissipation performance by expanding the back electrode and improving the heat dissipation path. At the same time of miniaturization, it realizes the same electrical characteristics as traditional packaging.

     PMDE package is a small package owned by ROHM, which has the same pad pattern as the ordinary SOD-323 package. By improving the back electrode and heat dissipation path, the package size is smaller than that of ordinary SOD-123FL package (3.5mm × 1.6mm) with the same electrical characteristics (current, withstand voltage, etc.), and reduce the installation area by about 42%, which is conducive to the miniaturization of the circuit board. In addition, the installation strength is about 1.4 times that of the SOD-123FL package, reducing the risk of cracks (product cracks) when the circuit board is under stress, so the installation reliability is higher.

     This time, among PMDE packaging products, 10 RBxx8 series Schottky barrier diodes (hereinafter referred to as "SBD"), 2 RFN series fast recovery diodes (hereinafter referred to as "FRD") and 2 VS series transient voltage suppression diodes (hereinafter referred to as "TVS") have been added. Many applications in the circuit can be realized through small size diodes.