Copyright 1993 Dallas Semiconductor Corporation Printed in U.S.A.
DS9098 iButton TM Retainer
DS9098
040197 1/1
FEATURES
•
Compact single–piece, all–metal receptacle for iButton mounting•
Retainer withstands high temperatures required for surface mounting•
Center contact is permanently separated at first inser- tion of the iButton•
Material is stainless steel with selective tin–lead plat- ing for optimal solderability to printed circuit board•
Retainer to iButton connection is stainless steel to stainless steel•
Quadruple redundancy of contacts (4 plus 4)•
Contact force exceeds 200 grams for reliable connec- tion•
At insertion, the iButton is latched for retention•
Pops up for removal when latch is released•
Gentle deflection of latches allows removal of the iButton•
>25 insertion/withdrawal cycles with no performance degradation•
Compatible with standard pick and place equipment;insensitive to angular orientation
•
Cleaning fluids drain freely for quick clean up•
Available in bulk packaging (DS9098) or in extruded tube packaging (DS9098T)Tin - lead
plated side B
Section B–B
11.4
12.95
16.66 Dia. 4.34
B
Recommended Printed Circuit Layout Pads
Opening in solder mask
11.3 copper 14.3
18.3
4.0
19.9 Dia.
Center – Data Outer ring – Ground
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
Copper cladding >0.3 Kg/m2 or >34 µm (>1 oz/sq. ft) with soldermask overlay
All dimensions are in millimeters 8.0
5.9
Center contact deviation from resting plane +.20
–.10 Section A–A
5.90
A A
8.0
DESCRIPTION
The DS9098 iButton Retainer is a low–cost, surface mount device that retains a 16.3mm x 5.8mm MicroCan on a printed circuit board. The slender design secures the iButton for a compact printed circuit board mount.
The retainer latches the flange of the iButton and pre- vents reversed insertion.
PRECAUTIONS ON USE
At first insertion closely align axis of the iButton and the Retainer, and then apply approximately 10 kg force for the separation of the center contacts. At subsequent insertion maintain similar axial alignment to avoid per- manent deformation. At removal, limit deflection of retainer latches to just free the iButton edge from retained state. Avoid applying excess force to latches.
