Weight | 20 g |
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Weight | 20 g |
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BD139 is a NPN transistor hence the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin . BD139 has a gain value of 40 to 160, this value determines the amplification capacity of the transistor.
₹50