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I tested 4 different BC846A. Each device has different hFE and VBE. Although it's still within the datasheet limit, it's impossible to recreate the same result with the same circuit.
So, my lesson is not to depend on transistor characteristic, and deploy negative feedback to make sure that...
That's odd. Solenoid is current controlled device, not voltage. So you should be able to power it even with 6V, as long as you can generate 1.5amps across it. Unless you're talking about very special solenoid.
@Miguel : Thanks. I saw the VCE vs Ic diagram for other transistor, and I thought it won't be the same as well. I wonder how do I get the hFE that's close enough for my calculation.
Hi,
I'm pretty new to the forum. So I hope I posted on the right channel.
I want to ask about the measurement condition that is put next to transistor parameter. I have BC846A from NXP. The datasheet can be downloaded from **broken link removed**.
The datasheet said that hFE group A is...
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