From: John Lawton <piclist@jle.co.uk>
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Date: Sat, 29 Aug 2020 13:33:14 -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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I would suggest the BC546C rather than the BC547C as it has a higher=20
voltage rating:

Vcbo 80V
Vceo 65V
Gain @ 2mA 420-800
Ic (cont) 100mA

John

On 29/08/2020 03:47, Brent Brown wrote:
> Hi Dwain,
>
> High gain made me think Zetex, looks like they are part of Diodes Inc now=
.. Probably
> overkill, but if price not a major consideration...
>
> ZTX692B 70V 1A hFE=3D400 E-line (TO-92 compatible)
>
> For much cheaper look at BC547 (A, B or C suffix). Spec sheet I looked at=
 has only
> one graph for hFE, presumably the A suffix part as it shows gain of 200 @=
 Ic =3D
> 1mA. Suffix B has more and C has the highest gain, should provide some he=
ad
> room.
>
> Brent
>
> On 28 Aug 2020 at 17:13, Dwayne Reid wrote:
>
>> Good day to all.
>>
>> I'm looking for an inexpensive jelly-bean transistor similar to
>> 2n4401 but with minimum 60V rating.  Of particular importance is that
>> the DC current gain exceed 200 with collector current of about 1 mA.
>>
>> I've been going through the many choices at Digikey but I'm finding
>> that although many suitable transistors have decent gain at fairly
>> high currents (100 mA and up), they have sucky gain at low currents
>> (1mA or so).
>>
>> I'd prefer to stay with a North American part number (2Nxxxx) but
>> would absolutely consider others.
>>
>> Prefer something fairly robust, similar to the 2N4401.  Decent
>> current rating, in other words.
>>
>> Suggestions gratefully accepted!
>>
>> Many thanks!
>>
>> dwayne
>>
>> --=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
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