O318 transistor?

Hi,

In an old tachometer I have found an old O318 transistor (?) . Could somebody please help me to find out some data about that.

Thanks an best regards, snipped-for-privacy@sztaki.hu

Hi,

In an old tachometer I have found an old O318 transistor (?) . Could somebody please help me to find out some data about that.

Thanks an best regards, snipped-for-privacy@sztaki.hu

Hi,

In an old tachometer I have found an old O318 transistor (?) . Could somebody please help me to find out some data about that.

Thanks an best regards, snipped-for-privacy@sztaki.hu

Hi,

In an old tachometer I have found an old O318 transistor (?) . Could somebody please help me to find out some data about that.

Thanks an best regards, snipped-for-privacy@sztaki.hu

Sounds like it moight be a date code - 18th week of 2003. How old did you say this "old" thing is?

Bill

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Istvan Meder wrote:

OC318 is a valid part number of, I think, a very old germanium transistor (European, I think).

C318 would be a large case (8-10mm high, 5 or 6mm diameter) silicon epitaxial 50V 100mA transistor (Japanese).

Best regards, Spehro Pefhany

OC if I recall was Mullard with cut off frequency under a couple of MHz . The equivelant these days would be a car relay!

OC318 gets a number of hits for sure.

Loks like I nedd glasses: the right number is D318! :-) Seems to work: that's an NPN Si transistor, hFE=100

Thaks for all, Istvan

Loks like I nedd glasses: the right number is D318 !! :-) Seems to work: that's an NPN Si transistor, hFE=100

Thaks for all, Istvan