Got a package of 10 of these mws5101el3 ram chips on E-Bay (This link: ebay.com link) and none of them appear to work. Seems like at least one out of 10 should work. The datasheets appear to be compatible. Did I get scammed or just get bad chips?
MWS5101EL3 was a 350nS part. Not the speediest in the world but works in most locations.
HKUTSource is a known counterfeiter.
Those appear to be legit by looking at tooling holes but difficult to tell.
When Harris was making components, we always used 4-digit date codes and did not use 3 digit date codes. Not sure what GE or RCA used before being acquired by Harris but the three digit date codes on the Harris parts look suspicious.
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