From: Brent Brown <brent@eds.co.nz>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
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Date: Fri, 28 Aug 2020 19:47:19 -0700
Subject: Re: [EE] Looking for higher-voltage version of 2N4401
Thread-Topic: [EE] Looking for higher-voltage version of 2N4401
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Hi Dwain,

High gain made me think Zetex, looks like they are part of Diodes Inc now. =
Probably=20
overkill, but if price not a major consideration...

ZTX692B 70V 1A hFE=3D400 E-line (TO-92 compatible)=20

For much cheaper look at BC547 (A, B or C suffix). Spec sheet I looked at h=
as only=20
one graph for hFE, presumably the A suffix part as it shows gain of 200 @ I=
c =3D=20
1mA. Suffix B has more and C has the highest gain, should provide some head=
=20
room.

Brent

On 28 Aug 2020 at 17:13, Dwayne Reid wrote:

> Good day to all.
>=20
> I'm looking for an inexpensive jelly-bean transistor similar to=20
> 2n4401 but with minimum 60V rating.  Of particular importance is that=20
> the DC current gain exceed 200 with collector current of about 1 mA.
>=20
> I've been going through the many choices at Digikey but I'm finding=20
> that although many suitable transistors have decent gain at fairly=20
> high currents (100 mA and up), they have sucky gain at low currents=20
> (1mA or so).
>=20
> I'd prefer to stay with a North American part number (2Nxxxx) but=20
> would absolutely consider others.
>=20
> Prefer something fairly robust, similar to the 2N4401.  Decent=20
> current rating, in other words.
>=20
> Suggestions gratefully accepted!
>=20
> Many thanks!
>=20
> dwayne
>=20
> --=20
> Dwayne Reid   <dwayner@planet.eon.net>
> Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
> 780-489-3199 voice   780-487-6397 fax   888-489-3199 Toll Free
> www.trinity-electronics.com
> Custom Electronics Design and Manufacturing
>=20
> --=20
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