TO-247 (Transistor Outline 247, JEDEC)
2, 3 (TO-247AC)
Suitable for wave soldering. Easy to solder by hand.
Typical PCB Land Area
2. TO-247AC (TO-247-3)
TO-247-3) is the 3-pin variant of the TO-247 package. It is considered the "upgrade" of the TO-218 (SOT-93), with the main difference being the insulated mounting hole, making it easier to mount to a heatsink without shorting things out (it is "mechanically compatible" with the TO-218, however not identical!).
When containing a MOSFET, the pin wiring is usually:
TO-247PLUS packages (TO-247PLUS-3 and TO-247PLUS-4) are variants of the TO-247 package by Infineon. The main difference is the removal of the mounting holes in the TO-247PLUS variants, plus some extended creepage distances for the TO-247PLUS.
 ON Semiconductor (2012, Jun 9). Final Product/Process Change Notification #16827: Package change from TO-218 to TO-247 for all Bipolar Power Transistors. Retrieved 2021-12-24, from https://www.mouser.com/PCN/ON%20Semiconductor_16827.pdf.
 Infineon (2017, Feb 10). AN2017-01: TO-247PLUS - Description of the packages and assembly guidelines. Retrieved 2021-12-25, from https://www.infineon.com/dgdl/Infineon-Discrete_IGBT_in_TO-247PLUS-AN-v02_00-EN.pdf?fileId=5546d46249cd10140149e0c7fe9d56c7.
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