TD253: Difference between revisions

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The '''TD253''' is a 10 mA germanium [[tunnel diodes|tunnel diode]] from General Electric. Tek part number is 152-0154-00.
{{Discrete component
|Manufacturer=General Electric
|Model=TD253
|Part_nos=152-0154-00
|Description=10 mA, 9 pF germanium tunnel diode
|Used_in=547;7B70;
}}.


It is used in several Tektronix instruments, including the [[547]] and [[7B70]].
It is used in several Tektronix instruments, including the [[547]] and [[7B70]].
It is specified to have a maximum capacitance of 9 pF.
It is specified to have a maximum capacitance of 9 pF.
There is also a TD253A, which has a maximum capacitance of 5 pF and a 190 ps rise time.  
There is also a TD253A, which has a maximum capacitance of 5 pF and a 190 ps rise time.  
The TD253B has a capacitance of 2pF and a 68 ps rise time.
The TD253B has a capacitance of 2 pF and a 68 ps rise time.
 
{{Part usage}}
 
* [https://w140.com/ge_tunnel_diodes_71.pdf Datasheet covering the TD253 (PDF)]


* [http://w140.com/ge_tunnel_diodes_71.pdf Datasheet covering the TD253 (PDF)]


[[Category:Tunnel diodes]]
[[Category:Tunnel diodes]]

Revision as of 08:37, 26 June 2023

The General Electric TD253  (P/N 152-0154-00) is a 10 mA, 9 pF germanium tunnel diode.

It is used in several Tektronix instruments, including the 547 and 7B70. It is specified to have a maximum capacitance of 9 pF.

There is also a TD253A, which has a maximum capacitance of 5 pF and a 190 ps rise time. The TD253B has a capacitance of 2 pF and a 68 ps rise time.

Some instruments using part TD253

Instrument Manufacturer Class Model Description Introduced
547 Tektronix Oscilloscope 547 50 MHz oscilloscope 1964
7B70 Tektronix Plug-in 7B70 200 MHz Timebase 1969
TU-5 Tektronix Pulse generator TU-5 Tunnel diode pulser (?)