mechanically small low voltage noise transistors

May 06, 2018 1 Replies
G

I was looking for small SMD low voltage noise transistors today in AOE3 and came across the ZXTP2027FTA / ZXTN2018FTA that have the marking "951" / "851" on the sot-23.



I take that as a hint that they are really the same chips as FZT851... in SOT-223 and the thinned TO-92.



The spice results that I got were too good to be true, for all of the family, btw.



cheers, Gerhard


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P

I'm using the ZXTP25020 in a super low noise diode laser supply. It comes in well below the shot noise at 100 mA (almost -180 dBc/Hz).

Cheers

Phil Hobbs

Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com
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