The ST(H,M,J,R)W Series is currently
available, although not recommended
for new designs.
Features
■ Through-hole and SMD styles available
■ Available sharp click feel with a positive
tactile feedback
■ Ultra-miniature and lightweight structure
suitable for high density mounting
■ Designed for washing after soldering
■ RoHS compliant*
■ Insert molding in the contact with special
treatment prevents flux buildup during
soldering and permits autodipping
ST(H,M,J,R)W Series Sealed Tact Switch
Electrical Characteristics
Product Dimensions
Electrical Life...........100,000 cycles min.
Rating ............................DC 12 V, 50 mA
Contact Resistance.....100 mohms max.
Insulation Resistance ..100 Mohms min.
DC 500 V min.
Dielectric Strength
...........................AC 250 V for 1 minute
Contact Arrangement...1 pole 1 position
6.20
STMW
STHW
9.00 ± 0.20
(.354 ± .079)
0.70
(.028)
(.244)
6.0
(.236)
6.20
C
L
(.244)
6.0
(.236)
0.70
(.028)
C
L
6.30
(.248)
4.0 ± 0.20
(.157 ± .008)
C
L
6.30
(.248)
4.0 ± 0.20
(.157 ± .008)
C
L
3.0
(.118)
DIA.
Environmental Characteristics
Mechanical Life.......100,000 cycles min.
Operation Force..................160 g, 260 g
Tolerance ..................................... 50 g
Stop Strength..Place the switch vertical,
a static load of 3 kg shall be
applied in the direction of actuator
operation for a period of 15 seconds
Stroke.......0.25 mm (+0.2 mm, -0.1 mm)
Operating Temperature Range
3.0
(.118)
C
L
DIA.
2.20
(.087)
1.80
C
C
L
L
H
(.071)
3.50 ± 0.50
(.138 ± .020)
H
5.80
(.228)
2.35
(.093)
6.50 ± 0.50
(.256 ± .020)
11.0
(.433)
6.80
7.90 ± 0.5
(.311 ± .020)
2.60
(.102)
(.268)
6.50 ± 0.10
(.256 ± .004)
....................................-25 °C to +70 °C
Storage Temperature Range
5.40
(.213)
....................................-30 °C to +80 °C
Vibration Test .................MIL-STD-202F,
Method 201A
Frequency ..........10-55-10 Hz/1 minute
Directions....................X,Y,Z 3 mutually
perpendicular directions
4.0 ± 0.10
(.157 ± .004)
1.0 ± 0.05
(.039 ± .002)
STRW
4 PLCS.
3.0
DIA.
(.118)
7.02
(.276)
Time..................2 hours each direction,
high reliability
STJW
6.80 ± 0.20
Shock Test .....................MIL-STD-202F,
Method 213B, Condition A
Gravity.......50 g (peak value), 11 msec.
Directions/Time......6 sides and 3 times
in each direction
(.268 ± .079)
6.20
(.244)
6.0
(.236)
0.70
(.028)
0.70
(.028)
C
4.00 ± 0.50
(.157 ± .020)
L
HEIGHT ± .20
(HEIGHT ± .008)
7.55 ± 0.50
(.297 ± .020)
4.0 ± 0.20 6.30
C
L
Physical Characteristics
(.157 ± .008)
(.248)
Cover Materials................Stainless steel
Base Materials..........Thermoplastic LCP
UL94V-0 black
Actuator Materials............Thermoplastic
Nylon UL94V-0 (680, 690)
Color.................Brown (Silver 680 type)
Contact Disc. Materials ...........Phosphor
bronze with gold cladding
Terminal Materials ........Brass with silver
cladding
3.0
(.118)
3.90
(.154)
DIA.
2.20
(.087)
C
L
C
L
4.61
(.181)
H
3.45 ± .030
(.136 ± .012)
6.10
(.240)
4.40
(.173)
5.80
(.228)
2.35
(.093)
0.30
(.012)
9.0 ± 0.1
(.354 ± .004)
3.7
(.146)
2.5 ± 0.1
(.098 ± .004)
5.0 ± 0.1
8.60
(.339)
4.00
(.197 ± .004)
2.60
(.102)
5.8 ± 0.1
(.228 ± .004)
(.157)
CIRCUIT DIAGRAM
5.40
(.213)
1
3
2
4
MM
(IN)
DIMENSIONS:
*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.