Re: XBLW variants of MCP6001/2 opamps

On 09-02-2025 11:24 pm, legg wrote:> On Sun, 9 Feb 2025 13:55:24 +0530, Pimpom <Pimpom@invalid.invalid>> wrote:> >> While hunting for a cheap R-R opamp that's readily available here in>> India, I came across the MCP6001 and 6002. Unusually for the Indian>> market, a few sites offer several variants of both single and dual types.>>>> The first three suffix letters stand for temperature range, package and>> packing but some have the four extra letters XBLW. These variants for>> both single and dual types cost less than a third of the others (roughly>> US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked>> at datasheets from various sources including the latest one from>> Microchip but couldn't find any reference to this extra suffix.>>>> I assume that the extra letters are not batch or date codes. Chinese>> copies maybe??> > Some numbers specify shipping Q = 1000 to 4000.> > RLIt's the letters XBLW I'm concerned about, like MCP6002T-I/SN-XBLW, and why they cost only a fraction of those without the last four letters in single quantities.