The DS 1990A-F5 (model 260656) is a Touch Memory electronic key commonly used as an identifier in access control systems. It features a 48-bit unique serial number embedded in its memory.
This device complies with the iButton standard and operates reliably within a specified temperature range.
DS 1990A-F5 black 260656 is listed to help buyers compare fit, application, and installation context before ordering.
Match the product to the required rating, connection type, and intended installation environment.
This item appears in Identifiers, where buyers can compare related technical products for US projects.
For new installations, review the equipment schedule, site conditions, and related accessories before choosing the final item. That extra check is useful for contractors, maintenance teams, and technical buyers evaluating DS 1990A-F5 black 260656 under project deadlines.
Reviews: 2
Average score: 5
Electrical Contractor
26/10/2024
The DS 1990A-F5 black key was straightforward to integrate with our existing access control system. Its 48-bit unique serial number ensures accurate identification, and it held up well in varying temperature conditions on site. The device’s compact design made installation hassle-free for our team. Overall, it meets the functionality requirements without any issues during initial setup.
Electrical Contractor
10/09/2024
We've used the DS 1990A-F5 black as an identifier for several access control setups. Its 48-bit unique serial number makes integration straightforward, and it holds up well across different temperatures encountered on site. Installation was simple, and the device consistently communicated with our existing systems without issues. A reliable component for projects needing secure and durable electronic keys.
Questions: 3
Safsale Product Desk
04/12/2025
Is the short product title enough for final selection?
The administration's response:
The short product title is not enough for final selection. Use it as a starting point, then compare the full model reference, datasheet values, dimensional notes, and any manufacturer details before placing an order.
Safsale Product Desk
27/11/2025
What should be saved for purchasing records?
The administration's response:
Save the full product name, model number, category, datasheet reference, rating values, and any important size or connection details. Keeping these fields together helps compare the item later if a replacement or reorder is needed.
Safsale Product Desk
02/03/2025
What details help avoid ordering the wrong variant?
The administration's response:
Check suffixes, series numbers, size values, rating values, color or finish notes, and connection details. Many technical products have similar names, so the full part reference should be compared with the project notes before purchase.
