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Old 10th March 2013, 11:21 PM   #9391
Salas is offline Salas  Greece
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P.S. Another way is to measure their resistance from drain to source. If you will do a check you will notice that same IDSS pairs show the same RDS. The higher the IDSS the lower the RDS also.
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Old 11th March 2013, 07:30 AM   #9392
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How do you measure rds ?
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Old 11th March 2013, 07:37 AM   #9393
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i found this :
JFET Matcher
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Old 11th March 2013, 07:40 AM   #9394
Salas is offline Salas  Greece
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Quote:
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How do you measure rds ?
Self explanatory. DMM in Ohm mode and you measure across drain to source.
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Old 11th March 2013, 07:43 AM   #9395
Salas is offline Salas  Greece
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Quote:
Originally Posted by Joachim Gerhard View Post
i found this :
JFET Matcher
I bought a DCA Atlas Pro too. Just not in my hands yet. Has it been repeatable for Vgs(off)?
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Old 11th March 2013, 08:48 AM   #9396
massimo is offline massimo  Italy
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If others will report some stashes too we will have some statistic so to fix the IDSS spec to what will be expected as easier to chance on.
208 pcs 2SK369BL: see attached pdf
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File Type: pdf 2SK369BL.pdf (6.3 KB, 26 views)
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Old 11th March 2013, 09:21 AM   #9397
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I did not measure so much Fets till now, more bipolar.
I can do some traces today with Fets.
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Old 11th March 2013, 09:26 AM   #9398
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208 pcs 2SK369BL: see attached pdf
Some of those would seem little high for BL grade.
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Old 11th March 2013, 09:33 AM   #9399
massimo is offline massimo  Italy
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Some of those would seem little high for BL grade.
Nope!
IDSS classification GR: 5.0~10.0 mA, BL: 8.0~16.0 mA, V: 14.0~30.0 mA
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Old 11th March 2013, 09:47 AM   #9400
Salas is offline Salas  Greece
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Many pairs and near pairs everywhere in the 208 lot.
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