如何test Schottky Barrier Rectifiers?

TEST MOSPEC S20C45C,USE MULTIMETER
PIN 1 2 3 FOR using -ve as pin2 PIN 1 and PIN 3 +VE,reading is 0.16V,是否正常.
另一方面 TEST MOSPEC F16C20,USE MULTIMETER
PIN 1 2 3 FOR using -ve as pin2 PIN 1 and PIN 3 +VE,reading is 0.477V,是否正常.

http://www.mospec.com.tw/pdf/schottky/S20C30-S20C60.pdf
S20C45C, Figure 2, typical 0.25V

http://www.mospec.com.tw/pdf/fast/F16C05-F16C20.pdf
F16C20, Figure 1, typical 0.6V

應該正常吧!
下次請在 電子世界子版 問,會易些留意到

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咁是否壞了?

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Diode 當然是一邊通,另一邊唔通。你check 下...
通果邊,個forward voltage drop 感覺上合理。
Diode 燒,會好明顯,外觀黑咗/燶咗,用表度short 埋 0V,或兩邊都唔通。好少會壞壞地...

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回覆 1# lv123

FYI, "How to test diodes using a digital multimeter - Fluke":
http://en-us.fluke.com/training/ ... tal-multimeter.html

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Diode 當然是一邊通,另一邊唔通。你check 下...
通果邊,個forward voltage drop 感覺上合理。
Diode 燒,會好明顯,外觀黑咗/燶咗,用表度short 埋 0V,或兩邊都唔通。好少會壞壞地...
Joe_Black 發表於 2017-3-18 14:18


見過壞壞地,voltage drop 比正常值大左好多,唔算全壞..

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