Maxim DS1990A-F5+, ibutton 48bit, 2-Pin F5 MicroCan

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

1-Wire and iButton devices

Maxim DS1990A Serial number iButton

This is a rugged data carrier that acts as an electronic registration number for automatic identification. Every device is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute is highly durable and resistant to environmental hazards like dirt, moisture and shock. The ibutton can be mounted on nearly any object including bags, containers and pallets.


• Can Be Read in Less Than 5ms
• Operating Range: 2.8V to 6.0V, -40°C to +85°C
• Unique Factory-Lasered 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Traceability Because No Two Parts are Alike
• Built-In Multidrop Controller for 1-Wire Net
• Data Can Be Accessed While Affixed to Object
• Button Shape is Self-Aligning with Cup-Shaped Probes
• Durable Stainless-Steel Case Engraved with Registration Number Withstands Harsh Environment


• Access Control
• Work- in- progress tracking
• Tool Management
• Inventory Control


Please note that any defect or non – conformance of this product must be discovered and reported to RS within 20 days of purchase.

The iButton is a computer chip enclosed in a 17mm diameter stainless steel can. Because of this unique and durable container, up-to-date information can travel with a person or object anywhere they go. It can be mounted anywhere because it is rugged enough to withstand harsh environments, indoors or outdoors. It is small and portable enough to attach to a key fob, ring, watch or other personal items. It can be used daily for applications such as access control to buildings and computers, asset management, and various data logging tasks.

Attribute Value
Serial Number Size 48bit
Registration Number Size 64bit
Package Type F5 MicroCan
Pin Count 2
Dimensions 17.35 x 17.35 x 6.45mm
Length 17.35mm
Width 17.35mm
Height 6.45mm
Maximum Operating Temperature +85 °C
Minimum Operating Temperature -40 °C
571 In stock for FREE next working day delivery
Price Each
£ 2.27
(exc. VAT)
£ 2.72
(inc. VAT)
Per unit
1 - 4
5 - 24
25 - 49
50 - 74
75 +
Packaging Options:
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