This part is an inexpensive $.10 diode. One might think that it would be too much trouble to sand down the tops of the parts, fix the leads and remark them, but it is common. We have even seen it done on less expensive parts. In the picture you can see the part before and after it has been wiped with acetone.
Robb Hammond is the President of AERI and the chair of the Aerospace Industry’s Counterfeit Electronic Components Mitigation Standard for independent distributors, AS6081, which has become one of the industry’s most respected documents, as well as being adopted by the Department of Defense. Robb is one of the foremost thought leaders in the industry on counterfeit detection and speaks regularly at conferences around the globe.