DS1990A-F5+ Tag for iButton TM Dallas Maxim 1-Wire

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SKU: SF6561

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iButton DS1990A-F5+ Key Tag

The DS1990A-F5+ provides a unique ID in a small iButton® form. This iButton can be used as a key in access control systems, inventory control applications, work-in-progress tracking, or other applications that require a low-cost, reliable method of validating identification.  It is a read only tag with a 64-bit identification code. Following a 1-Wire Protocol, transmission of information is being done through a single conductor, ensuring a succcessful data transfer with the contact device.

DS1990A-F5+ key is made of stainless steel with a high resitance to any magnetic and static fields. It is primarily used for Door Intercommunication Systems, Security Systems and Access Control Systems.


  • Format: TM(Touch Memory) iButton
  • Identification code: 64-bit
  • Lifetime: More than 10 years
  • Dimensions(L / W): 59/19 mm
  • Weight of the key (± 3%): 4g (with plastic fob)
  • Average number of readings: 1000000 times
  • Material of Cover and Holder: Cover- Stainless steel; Holder – ABS/POM
  • Operating Temperature: -40℃ to +85℃

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