RF transistor Acrian TT5021

I got my hands on a small lot of Acrian TT5021 RF power
transistors. They are bipolar RF transistors in 7mm diameter
white ceramic pucks (probably BeO) with four wings and a
stud. They are probably roughly 30W VHF amplifier transistors.

Does anyone have a datasheet for these things? Google
came up dry.

Thanks,
Jeroen Belleman

Jeroen Belleman <jeroen@nospam.please> wrote:
> I got my hands on a small lot of Acrian TT5021 RF power transistors.
> [...]
> Does anyone have a datasheet for these things? Google came up dry.

The only possibly useful thing I found in a few minutes of Googling was
a mention of Acrian on page 27 of this Microsemi catalog:
http://www.microsemi.com/index.php?option=com_docman&task=doc_download&gid=14817

Maybe Microsemi can help.

Matt Roberds

On 27/07/2015 14:15, Jeroen Belleman wrote:
> I got my hands on a small lot of Acrian TT5021 RF power
> transistors. They are bipolar RF transistors in 7mm diameter
> white ceramic pucks (probably BeO) with four wings and a
> stud. They are probably roughly 30W VHF amplifier transistors.
>
> Does anyone have a datasheet for these things? Google
> came up dry.
>
> Thanks,
> Jeroen Belleman

According to a search I just found this:

"...ASI manufactures a comprehensive line of RF power transistors 
previously made by Acrian and Communication Transistor Corp.

ASI Semiconductor, Inc.
7525 Ethel Avenue
North Hollywood, California 91605
U.S.A.
Tel: (818) 982-1200
Toll-Free: (800) 423-2354
Fax: (818) 765-3004
Email: sales@adsemi.com  ..."

Going by some of their numbering conventions devices like 5012 are 50W 
for 12v supply and 5028 is 50W on 28V supply. The initial two letters 
specify frequency band and application eg. TV or HF etc. But I found no 
mention on ASI website of TT5021 - sorry.

piglet