DS1402D-0XX
iButton Probe Component Parts
www.maxim-ic.com
Features
§
§
§
Spring-Mounted iButton Reader
Momentary Contact for Both F3 and F5 Style
iButtons or Dwelled Contact for F5 Only
Convenient Tactile Feedback System for Dwelled
iButton Contact
®
Mounting Pad Layout
.82in
Ground
.080in
Data
.46in
General Description
The four component parts that are used to construct the Blue-Dotä iButton reader found in the DS1402D-DR8 and
DS1402D-DB8 are described here. Diagrams 1 through 4 show the individual part dimensions. This document also
describes how to assemble the Blue-Dot given the sub-parts listed in Table 1. The Blue-Dot can be assembled in
the three easy steps described in the
Assembly Instructions
section.
Table 1. DS1402D Parts Listing
Reference
A
B
C
D
Part
DS1402D-011
DS1402D-010
DS1402D-003
DS1402D-017
DS1402D-041
Description
Small Blue Insert
Small Data Contact Spring
Large Blue Support
Large Ground Contact
Subassembly of A-D
Ordering Information
DS1402D-11
DS1402D-10
DS1402D-3
DS1402D-17
DS1402D-41
iButton is a registered trademark of Dallas Semiconductor.
Blue-Dot is a trademark of Dallas Semiconductor.
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081304
DS1402D
Assembly Instructions
1. Insert the end of the Data Spring (B) wire at the large coil end, into the slot at the top of the Data Button (A).
Twist the spring clockwise into the slot until the end of the wire at the small coil end lines up with the edge of the
slot in the Button.
A
B
2. Place the Data Button (A) with the Data Spring (B), assembled, into the Contact Support (C).
D
The Contact (D) loop
fits around the side of
the notch with the
larger radii.
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DS1402D
3. Compress the Data Spring (B) into the center of the Data Button (A) and slide the Contact (D) onto the Contact
Support (C). Check that the Data Button (A) is free to move up and down through the Contact (D).
Slot in Button (A) to line up
with notch in Contact
Support (C).
C
End of wire to line up
with notch in Contact
Support
XY
XY
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Microcontroller MCU
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