UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - TO247 transistor collector-heatsink

kalee20 · 13th Nov 2019, 7:51 pm

Well, the chip is internally bonded to the tab, and then the middle lead is extended from the tab, so the tab itself (collector, drain or whatever) is the most direct connection to the device.

Whether you find it easiest to make a reliable connection of your own to the lead or to the tab, is, of course, under your own control!

13th Nov 2019, 7:51 pm	#6
kalee20 Dekatron Join Date: Feb 2007 Location: Lynton, N. Devon, UK. Posts: 7,082	Re: TO247 transistor collector-heatsink Well, the chip is internally bonded to the tab, and then the middle lead is extended from the tab, so the tab itself (collector, drain or whatever) is the most direct connection to the device. Whether you find it easiest to make a reliable connection of your own to the lead or to the tab, is, of course, under your own control!