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I remember from reading on a website that Radio Shack parts are known by another name. For example the 276-038 is a 1458 and a 900-6298 is a 353. I would like to know what the 276-640 is so that I can find a datasheet on it, since there is no datasheet for th 276-640.

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I'm not sure it has a fixed part number. The catalog page http://www.radioshack.com/product/index.jsp?productId=2049727 gives the description "38kHz Infrared (IR) Receiver Module" but I'm not sure how precisely RS defines the part beyond that. Radio Shack probably selected some particular manufacturer's receiver unit, but I don't know that they'll always use that same one. Unless you need to precisely match a particular component, I'd suggest going to digikey.com, search for "remote receiver", select "38KHz", and go from there.

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  • \$\begingroup\$ Yeah the RS listing is very light on details, but if I had to guess I'd say that I've found a roughly equivalent unit here: search.digikey.com/scripts/DkSearch/… \$\endgroup\$ – AngryEE Apr 19 '11 at 20:36
  • \$\begingroup\$ @AngryEE - if OP doesn't care too much about the stand-off there's dozens of IR-receivers to be found at vishay.com/ir-receiver-modules \$\endgroup\$ – stevenvh Apr 20 '11 at 6:28
  • \$\begingroup\$ @stevenh Yeah, all these options can get confusing. It's like we need an expert system to find parts on Digikey. \$\endgroup\$ – AngryEE Apr 20 '11 at 13:00
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On mine stamped on the top is 4838 so I would assume it is equivalent to a TSOP4838. Spec sheet can be found here: http://www.farnell.com/datasheets/30500.pdf

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  • \$\begingroup\$ Note that the specs on the package from one I have (same Radio-Shack part number) match those of a TSOP38... series device rather than the TSOP48... series. vishay.com/docs/82491/tsop382.pdf \$\endgroup\$ – MartyMacGyver Jul 20 '16 at 7:11

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