BF245A ebay testing

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turbofeedus
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Post by turbofeedus »

After some success with the 2SK117, I wanted to push my luck.
Obsolete JFETs are still on the menu, this time some (allegedly) Fairchild BF245A (datasheet).
ebay item link: https://www.ebay.com/itm/284031825834
ebay seller xripley from Czech Republic: https://www.ebay.com/usr/xripley

From a batch of 25 pieces, tested with Peak DCA75.
Average Vgs(off) = -1.78V
Average Idss = 4.01mA
Standard deviation Vgs(off) = 0.25V
Standard deviation Idss = 0.76mA

Pinout is a match, with swappable source/drain.
Vgs(off) and Idss are both within datasheet spec.
Visually they are convincing, no obvious evidence of sanding. Leads are solder free and full length.
Seem legit to me.

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