The STS Series is currently available,
although not recommended for new
designs.
Features
■ Available sharp click feel with a positive
tactile feedback
■ Ultraminiature and lightweight structure
suitable for high density mounting
■ Economical
■ Reliable
■ RoHS compliant*
STS Series - Ultraminiature Tactile Switch
Electrical Characteristics
Product Dimensions
Electrical Life
STSM
STSG
................50,000 Cycles for 160 gf, 320 gf
Rating...................................50 mA, 12 VDC
Contact Resistance.................100 mΩ max.
Insulation Resistance
6.0
(.236)
6.0
(.236)
...........................100 MΩ min. @ 500 VDC
Dielectric Strength...........250 VAC/1 minute
Contact Arrangement ..........................SPST
3.5
(.138)
3.5
(.138)
Environmental Characteristics
3.0
(.118)
3.0
(.118)
0.5
(.020)
0.5
(.020)
Operation Temperature Range
........................................-25 °C to +70 °C
Storage Temperature Range
........................................-30 °C to +80 °C
Vibration Test
MIL-STD-202F Method 201A
Frequency...............10-55-10 Hz/1 minute
Directions
MAX.
MAX.
H
0.2
H
0.2
3.5
(.138)
3.5
(.138)
(H .008)
(H .008)
7.2
(.283)
9.0
(.354)
...........X,Y,Z, three mutually perpendicular
directions
0.9
(.035)
Time ..........................2 hours each direction
Shock Test
1.5
(.059)
1.5
(.059)
MIL-STD-202F Method 213B
Condition A
Gravity ............50 G (peak value), 11 msec
Direction and Times....6 sides and 3 times
in each direction
0.05
(0.002)
0.05
(0.002)
MAX.
MAX.
1.0
(.039)
1.0
(.039)
Physical Characteristics
Cover Materials.....................Stainless Steel
Base Materials .....................UL94V-0 Nylon
Thermoplastic
Actuator ...............................UL94V-0 Nylon
High-Temperature Thermoplastic
Contact Disc .........................Stainless steel
with silver cladding
PCB LAYOUT
PCB LAYOUT
7.4
(.291)
9.5
(.374)
3.4
(.134)
6.4
(.252)
Terminals.............Brass with silver cladding
1.6
1.6
(.063)
(.063)
How to Order
STS M - 3 1 - S TR
Reflow Soldering Profile
Circuit Diagram
Model
Style
T1
T2
1-cycle reflow
M = Surface Mount “J” Style
G = Surface Mount “G” Style
H = Through-hole “H” Style
Max. 255
250
230
5-10
Product Size
3 = 3.5 mm wide x 6 mm long
Sec.
150
120-150
Sec.
60
Height
TOLERANCES: 0.2 (.008)
MM
(INCHES)
Sec. Max.
1 = 4.3 mm
2 = 5.0 mm
Room
Temp.
Time
DIMENSIONS ARE:
Color of Stem for Actuating Force
N = Brown, 160 g
R = Red, 260 g
S = Salmon, 320 g
Y = Yellow, 520 g
Packaging Option
__ = Std. Packaging - 135 pcs./tube
TR = Tape & Reel Packaging -
31 - 1800 pcs./reel (STSM & STSG only)
32 - 1600 pcs./reel (STSM & STSG only)
*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.