This document provides mounting recommendations for ceramic packages used in the assembly of DMOS radio frequency transistors suitable for applications such as ISM and FM broadcasting.
This application note provides mounting recommendations for ceramic packages used in the assembly of DMOS radio frequency transistors suitable for applications such as ISM and FM broadcasting. It covers specific models M174, M177, and M244.
| Minimum depth of tapped holes in heatsinks | 6 mm |
|---|---|
| Minimum flatness of the mounting area | 0.02 mm |
| Mounting area roughness | less than 0.5 um |
| Screw specification | 4-40 UNC-2A cheese-head screws |
| Torque for M174, M177 & M244 | 0.6 Nm minimum and 0.75 Nm max |
The minimum depth of tapped holes in heatsinks is 6 mm.
The torque should be a minimum of 0.6 Nm and a maximum of 0.75 Nm.