Dallas Key Fobs DS1990A-F5 – Blue

Dallas Key Fob for DS1990A-F5 with Blue Color Plastic Holder

DS1990A-F5 w/ Blue Fob

Place of Origin: China(Mainland)                   Part Number: DS1990A-F5-BL        Brand Name: Dallas / Maxim Integrated
Min. Order Quantity: 100 Pieces                     Port: Guangzhou                                 Payment Terms: T/T, Western Union, Paypal


Dallas Key Fobs with DS1990A-F5 – Blue


The iButton serial number (DS1990A) is a rugged data carrier that serves as an electronic registration number for automatic identification. Data is transferred serially through the 1-Wire? protocol, which requires only a single data lead and a ground return. Every DS1990A is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability.


Key Features

  • Unique, factory-lasered and tested 64-bit
  • Digital identification by momentary contact.
  • Chip-based data carrier compactly stores information.
  • Data can be accessed while affixed to an object.
  • Easily affixed with self-stick adhesive backing, latched by its flange, or locked with a ring pressed onto its rim.
  • Presence detector acknowledges when reader first applies voltage.
  • Stainless steel package with su304-0.3
  • Resistant to heat, Operating temperature range from -40°C to +70°C
  • Over 10 years of data retention



  • Security patrol, sauna door locks, electronic door locks
  • Door intercom, card systems, identification and banking
  • Communications, rail transportation, transportation and others


The DS1990A can be found on its data sheet here: DS1990A DataSheet, and key fobs datasheet: DS9093A DataSheet.



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