Model STSS is currently available,
although not recommended for new
designs.
Features
■ Available sharp click feel with a positive
tactile feedback
■ Ultra-miniature and lightweight structure
suitable for high density mounting
■ Economical with high reliability
■ RoHS compliant*
■ Insert molding in the contact with special
treatment prevents flux buildup during
soldering and permits autodipping
STSS SMD 4 mm Sealed Tact Switch
Electrical Characteristics
How to Order
Product Dimensions
Electrical Life
ꢀ.80 +0.20/-0.30
(.189 +.008/-.012
STSS - 32 - TR
..........................................100,000 cycles
Rating ..................................DC 12 V 50 mA
Contact Resistance ......100 milliohms max.
Insulation Resistance
Model
3.90 0.10
(.15ꢀ .00ꢀ4
Terminal
..................100 megohms, DC 100 V min.
Dielectric Strength....100 V AC for 1 minute
Contact Arrangement........1 pole 1 position
Embossed Tape
TR = 3500 Pcs./180 mm Reel
3.55
(1.ꢀ04
Environmental Characteristics
2.10
(.0834
Operation Force........................220 g ±±5 g
Stroke
Circuit Diagram
................................0.2 + 0.10/- 0.05 mm
Operating Temperature ....-25 °C to +70 °C
Storage Temperature ........-30 °C to +80 °C
1.20
(.0ꢀ74
1.70
(.0674
1.ꢀ0 0.10
(.055 .00ꢀ4
1
2
2.90 0.10
(.11ꢀ .00ꢀ4
Vibration Test........................Mil-STD-202F,
Method 201A
Frequency ..............10-55-10 Hz/1 minute
Directions ................X,Y,Z, three mutually
perpendicular directions
Reflow Soldering Profile
1.50 +0.15/-0.10
(.059 +.006/-.00ꢀ4
1.00
(.0394
275
225
2ꢀ0 °C
180 °C
Time ......................2 hours each direction
Shock Test ..........................MIL-STD-202F,
Method 213B, Condition A
Gravity ..........50 G (peak value), 11 msec
Direction & Times....................± sides and
3 times in each direction
175
10-15
Sec.
0.65 +0/-0.10
(.026 +0/-.00ꢀ4
DIA.
125
120 °C
0.06
0.50
80-90 Sec.
(.0024
(.0204
75
25
0.10
(.00ꢀ4
35-60
Sec.
30-ꢀ0 Sec.
Physical Characteristics
0
20 ꢀ0 60 80 100 120 1ꢀ0 160 180 200
0.80 0.10
(.03 .00ꢀ4
Time (Seconds)
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 (±08 °F)
1.80 0.10
(.071 .00ꢀ4
Recommended PCB Layout
ꢀ.60
(.1814
3.60
(.1ꢀ24
2.60
(.1024
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
2.ꢀ0 1.80
(.09ꢀ4 (.0714
1.70
(.0674
Packaging ..................3,500 pieces per reel
0.80 +0.10/-0
(.028 +.00ꢀ/04
DIA. 2 PLCS.
3.20
(.1264
5.00
(.1974
MM
(INCHES4
DIMENSIONS ARE:
*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.