TD254

The General Electric TD254  (P/N 152-0380-00) is a 22 mA, 18 pF germanium tunnel diode.

Some instruments using part TD254

Instrument	Manufacturer	Class	Model	Description	Introduced
3T77A	Tektronix	Plug-in	3T77A	Sampling sweep plug-in	1966

Type	 	Ip		Iv,max		Cmax	Vp		Vfs		Vf		Rs(typ)	tr	 	 	 	 
 	 	(mA)		(mA)		(pF)	(mV)						(ohms)	(ps)	 	 	 	 
TD254	 	22 ±10%		3.8		18	90 typ		520 typ		600 typ		1.8	185	 	 	 	 
TD254A	 	22 ±10%		3.8		4	120 max		460 min		550-650		2	64	 	 	 	 

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