iButton Plastic Card Mounts

Please check latest availability status for a specific part variant.


The DS9093RA Lock Ring is a stainless-steel fastener that provides an inexpensive method for firmly attaching an iButton® to any item with a pre-punched hole. The iButton is inserted through the hole and is restrained by the flange on the iButton. The DS9093RA Lock Ring is crimped onto the portion of the iButton that protrudes through the hole.

The optional DS9093RB Flange Enlargement is a thin, stainless-steel washer that provides additional surface area to improve retention of the iButton in materials that are very thin or flexible. The DS9093RB is formed with a slight dome to improve the gripping force exerted onto the pre-punched material. The domed side of the washer should face the flange of the iButton, the flat side should face the material.
DS9093RA, DS9093RB: Application DS9093RA, DS9093RB: Application Enlarge+

Key Features

  • Low-cost fixtures that hold an iButton for thumbpad applications or permanent attachment to an object.
  • Pre-punched hole mount for iButtons:
    • DS9093RA lock ring firmly fastens F5 package.
    • DS9093RB flange enlargement provides additional flange surface area if needed.
Part NumberOverviewColorBudgetary
See Notes
DS9093RA DS9093RA
Lock Ring Washer
Metal$0.35 @1k
DS9093RB DS9093RB
Flange Enlargement Washer
Stainless$0.57 @1k
See All iButton Mounting Options (16)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

App Note 204 iButton ID Badge Mounting Options

Quality and Environmental Data

Request Reliability Report for: DS9093RA 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >


Related Resources

Type ID PDF Title
App Note 204 iButton ID Badge Mounting Options