*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
STSS SMD 4 mm Sealed Tact Switch
Electrical Characteristics
Electrical Life
..........................................100,000 cycles
Rating ..................................DC 12 V 50 mA
Contact Resistance ......100 milliohms max.
Insulation Resistance
..................100 megohms, DC 100 V min.
Dielectric Strength ....100 V AC for 1 minute
Contact Arrangement ........1 pole 1 position
Environmental Characteristics
Operation Force........................220 g 65 g
Stroke
................................0.2 + 0.10/- 0.05 mm
Operating Temperature ....-25 C to +70 C
Storage Temperature ........-30 C to +80 C
Vibration Test........................Mil-STD-202F,
Method 201A
Frequency ..............10-55-10 Hz/1 minute
Directions ................X,Y,Z, three mutually
perpendicular directions
Time ......................2 hours each direction
Shock Test ..........................MIL-STD-202F,
Method 213B, Condition A
Gravity ..........50 G (peak value), 11 msec
Direction & Times....................6 sides and
3 times in each direction
Physical Characteristics
Cover Materials
..........................................Stainless Steel
Base Materials
........LCP high temp. thermoplastic, white
Actuator Materials
........LCP high temp. thermoplastic, black
Contact Disc Materials
....................Stainless with silver cladding
Terminal Materials
............................Brass with silver plated
Tape ..................................................Teflon
Hand Soldering Process
..............Use a soldering iron of 30 watts,
controlled at 320 C (608 F)
for approximately 2 seconds while
applying solder
Reflow Soldering Process
..............When applying reflow soldering,
the peak temperature or the reflow oven
should be set to 240 C
Packaging ..................3,500 pieces per reel
1.80 0.10
(.071 .004)
3.90 0.10
(.154 .004)
4.80 +0.20/-0.30
(.189 +.008/-.012
0.65 +0/-0.10
(.026 +0/-.004)
DIA.
0.06
(.002)
0.10
(.004)
1.50 +0.15/-0.10
(.059 +.006/-.004)
2.10
(.083)
1.00
(.039)
1.40 0.10
(.055 .004)
2.90 0.10
(.114 .004)
3.55
(1.40)
0.80 0.10
(.03 .004)
0.50
(.020)
1.20
(.047)
1.70
(.067)
2.60
(.102)
4.60
(.181)
3.20
(.126)
5.00
(.197)
1.70
(.067)
1.80
(.071)
2.40
(.094)
3.60
(.142)
0.80 +0.10/-0
(.028 +.004/0)
DIA. 2 PLCS.
How to Order
STSS - 32 - TR
Model
Terminal
Embossed Tape
TR = 3500 Pcs./180 mm Reel
DIMENSIONS ARE:
MM
(INCHES)
Product Dimensions
Features
Available sharp click feel with a positive
tactile feedback
Ultra-miniature and lightweight structure
suitable for high density mounting
Insert molding in the contact with special
Economical with high reliability
treatment prevents flux buildup during
RoHS compliant*
soldering and permits autodipping
Circuit Diagram
1
2
Recommended PCB Layout
Reflow Soldering Profile
T
e
mperature (
C)
Time (Seconds)
275
30-40 Sec.
120 C
225
175
125
75
25
0
20
40
60
80
100 120 140 160 180 200
80-90 Sec.
10-15
Sec.
35-60
Sec.
180 C
240 C
*RoHS COMPLIANT
Model STSS is currently available,
although not recommended for new
designs.
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