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Help me select a BJT model for PIC16F877A

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canthuceace

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Dear all,

1 of the output of the PIC16F877A is connect to a buzzer, i use a BJT as an amplifier for the buzzer.

what model of BJT should i use?
thanks

regards,
canthuceace
 

IanP

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Re: PIC--BJT

To drive piezo-buzzers you can use any general purpose NPN transistors ..
Here are some examples:
2N2222
BC107
BC337
BC547
2N3904
2N4401
MPSA42
N100
ZTX450
...
In general, select one with Vce ≥ 30V and Ic ≥ 100mA ..
Regards,
IanP
 

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