Very low Vgs Nch MOSFET

Thread Starter

tyro01

Joined May 20, 2021
36
Hello, I'm seeking a low Vgs Nch MOSFET that has TO-92 package similar to BSH105(Vgs=0.57Vtyp).
Does anyone know of a model with good availability that can be purchased at Mouser or DigiKey?
Thanks,
tyro
 

ronsimpson

Joined Oct 7, 2019
2,161
BSH105 Mouser has many parts in surface mount.
I think the one (or two) types at digikey are about the same as the BSH105.
It takes 0.8V to get 1mA.
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Ian0

Joined Aug 7, 2020
5,510
I note that the datasheet does not specify a maximum value for the gate threshold voltage.
I hope that the TS realises that Vgs(th) tends to have a large part-to-part spread and varies considerably with temperature.
 

Thread Starter

tyro01

Joined May 20, 2021
36
I'd like to say thank you to everyone.
The actual measured value of "high" signal is 1.53V and Vds=3.15V, Id=Microampere level.

As lan0 said, in many products, Vgs did not have a maximum value listed on the datasheet.
Strictly speaking, even BSH105 cannot be used for my purposes.
pict2.jpg

I currently use current driven KSC1815. But my circuit is an IoT system and I want to minimize current consumption. For me, this "high" voltage is a mid-range number to drive MOSFET.

As ronsimpson says, TN0702N3-G has good characteristics for my purpose. The maximum value is listed in the data sheet.
pict.jpg
This component also appears to have good availability, I will use this.
Thank you,
tyro
 
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