Need modern part number for a old tranistor

[Navymoxie]

Hi,
I am repairing a old piece of test equipment for the Navy, and we discovered the Q1 transistor is bad. After calling the manufacturer L3- SPD we discovered there is no part number, only specs listed. Can anyone help determine which transistor we could use to make this device operational?
R/
Mike Perry
PSNS S-67
Electronic Worker



Transistor Q1 is NPN with the following characteristics:

VCE = 30V min

VCB = 60V min

VEB = 5V min

ICB (max) = 0.01uA at 60V

Power = 500mW max

HFE = 50 min at IC = 1mA

TO-18 case

 

[Tha fios agaibh]

Try the search tool on supplier websites like digikey or mouser where you can enter the characteristics you need.

 

[Navymoxie]

Try the search tool on supplier websites like digikey or mouser where you can enter the characteristics you need.

I have been trying these sites, but it seems to be a tricky one to match up. The rating provided in the past do not seem to translate to modern ratings. US Navy will only allow me to install a exact replacement.

The previous Transistor had the following markings:

FS42841 209
605209-015
HONG KONG

If we can not get there from here, then we will have to bid out to L3-SPD to reverse engineer a replacement device. This is just one way we are trying to save time and money by getting this device working ASAP.
Thanks for your suggestion.

 

[Minder]

Looks to me as though a 2n2222 TO-18 case would cover it.
M.

 

[Navymoxie]

Thank you, looks good, found the data sheet and printed to for review by engineer. Thanks