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Help with shunt and series feedback connections

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jandromez

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Dear all,

I've done the design of a feedback amplifier with a BJT using a SOT143 BFP181. My question is regarding to the PCB layout: How do I connect the series feedback resistor if the SOT143 package has 2 emitter pins? I'm a kind of newbie to layout designs.

Any tips to the connection of the different elements?

Thanks.

FB amplifier.png
 

ArticCynda

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You don't know the layout of the transistor internally, so I'd connect the emitter resistor between the 2 emitter pins as close as possible.
 

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