Quick schematic question

[dlazzarini]

Could someone tell me if I have the schematic labeled properly for a J201. I believe I do but I would like to be certain before I fill a breadboard the wrong way. Thank you in advance.

 

[phi1]

No, switch source and gate

 

[dlazzarini]

No, switch source and gate

So I have the drain and gate swapped?

 

[Mcknib]

Like this gate is always the pin with the arrowhead on the schematic but not always the physical centre pin

 

[dlazzarini]

Like this gate is always the pin with the arrowhead on the schematic but not always the physical centre pin
View attachment 11205

Ok I think I’ve got it now. Is this the standard orientation when looking at a schematic with jfets? Gate is always the arrow and at the top of the symbol will be will be the drain regardless of the physical pin arrangement

 

[Robert]

The gate is always the pin with the arrow (referring to the pic above).

The drain and source may sometimes be flipped, but it usually doesn't matter because the drain and source are interchangeable with a lot of JFETs.

 

[Mcknib]

Ok I think I’ve got it now. Is this the standard orientation when looking at a schematic with jfets? Gate is always the arrow and at the top of the symbol will be will be the drain regardless of the physical pin arrangement

Drain usually comes off the power rail gate would have the arrow, leaving the other one the source

 

[dlazzarini]

Ok. Thanks guys. I thing I comprehend now

 

[fig]

I try to DL the datasheet for components the first time I order them.

 

[dlazzarini]

I try to DL the datasheet for components the first time I order them.

I do as well. I know the pinout of the fets I have, I just wasn’t quite sure what the PIN numbers were on the schematic. I was finding what I thought were conflicting answers while searching but I think you guys have got me dialed in now.