Recently, I bought a lot of mosfet IRF1404 from a seller who said to have imported from US such mosfets.
When I performed bench tests on them, I realized they were original, but they had some anomalies, such as current leakage and low current tolerance, being limited to 15 or 20 amps, prior to their burning.
When I dismantled the mosfets, I noticed that their internal silicon chip was shifted to the left in an erratic way, which I believe was produced by Infineon, but failed in quality control and this somehow ended up in the market and caused me problems.
I request that the company carry out investigations, so that this does not become an usual practice and does not denigrate the name of the company, which in my view, produces great products. Below I show in the photograph of which I am referring.
The one on the left is the mosfet with problems and the one on the right is the normal mosfet.
The lot that presented defect, refers to the second photo.
Regards.
Henrique Duarte
+5519-994668256 (whatsapp)
When I performed bench tests on them, I realized they were original, but they had some anomalies, such as current leakage and low current tolerance, being limited to 15 or 20 amps, prior to their burning.
When I dismantled the mosfets, I noticed that their internal silicon chip was shifted to the left in an erratic way, which I believe was produced by Infineon, but failed in quality control and this somehow ended up in the market and caused me problems.
I request that the company carry out investigations, so that this does not become an usual practice and does not denigrate the name of the company, which in my view, produces great products. Below I show in the photograph of which I am referring.
The one on the left is the mosfet with problems and the one on the right is the normal mosfet.
The lot that presented defect, refers to the second photo.
Regards.
Henrique Duarte
+5519-994668256 (whatsapp)