SDTM Series – SMD Tact Switch
Features
ꢀ
Available sharp click feel with a
positive tactile feedback
ꢀ
Insert molding in the contact with
special treatment prevents flux
buildup during soldering and permits
autodipping
ꢀ
Ultra-miniature and lightweight
structure suitable for high density
mounting
ꢀ
RoHS compliant†
ꢀ
Very economical with high reliability
Electrical Characteristics
Product Dimensions
How To Order
Electrical Life
SDTM-610/620/630/650/660
SDT M - 6 10 - K TR
....................50,000 cycles min. for 260 g
500,000 cycles min. for 100 g, 160 g
Rating ................................DC 12 V, 50 mA
Contact Resistance.........100 mohms max.
Insulation Resistance......100 Mohms min.,
DC 500 V min.
6.20
(.244)
Model
4.30
Product Code
M = SMD
(.169)
0.70
(.028)
C
L
Body Size
6 = 6 mm
T
T
2
1
Height
4.50 ± 0.20
(.177 ± .008)
Dielectric Strength...AC 250 V for 1 minute
Contact Arrangement.......1 pole 1 position
C
L
10 = 4.3 mm
20 = 5.0 mm
30 = 7.0 mm
T
T
4
3
44 = 7.3 mm (square head)
48 = 7.3 mm (square head)
50 = 9.5 mm
Environmental Characteristics
3.50
(.138)
DIA.
Operation Force ..........100 g, 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)
Temperature Range..........-25 °C to +70 °C
Vibration Test ......................MIL-STD-202F,
Method 201A
Frequency .............10-50-10 Hz/1 minute
Directions........................X,Y,Z 3 mutually
perpendicular directions
Time.....................2 hours each direction,
high reliability
0.50
(.020)
60 = 13 mm
MAX.
H ± 0.20
(H ± .008)
C
L
Actuating Force
K = 100 g (black)
N = 160 g (brown)
R = 260 g (red)
3.50
(.138)
0°-4°
Packaging Option
TR = Embossed Tape*
610 = 1000 pcs.
0.200 ± 0.10
(.008 ± .004)
9.0 ± 0.2
(.354 ± .008)
620 = 900 pcs.
630, 644, 648 = 500 pcs.
650 = 380 pcs.
SDTM-644/648
__ = Tube
All models = 77 pcs.
6.20
(.244)
4.30
*Not applicable to Model 660.
(.169)
0.70
(.028)
C
L
T
T
2
1
CIRCUIT DIAGRAM
Shock Test ..........................MIL-STD-202F,
Method 213A, Condition A
Gravity..........50 g (peak value), 11 msec.
Directions/Time.........6 sides and 3 times
in each direction
T
1
T
2
4.50 ± 0.20
(.177 ± .008)
C
L
T
T
4
3
T
T
4
3
2.4
(.095)
2.8
(.110)
Physical Characteristics
SDTM-644:
SDTM-648:
DIA.
Cover Materials..................Steel, tin plated
Base Materials ...........Thermoplastic Nylon
FG 101, UL94V-0
Actuator Materials................Thermoplastic
Nylon UL94V-0
DIA.
7.30
(.287)
C
L
0.50
(.020)
MAX.
3.50
(.138)
Color ............................Black, brown, red
Contact Disc. Materials...............Phosphor
bronze with silver cladding
0°-4°
Terminal Materials.............Brass with silver
cladding
0.200 ± 0.10
(.008 ± .004)
9.0 ± 0.2
(.354 ± .008)
RECOMMENDED PCB LAYOUT
9.50
(.374)
6.40
(.252)
4.50
(.177)
T
T
2
1
T
T
4
3
1.30
(.051)
Specifications are subject to change without notice.
†RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Customers should verify actual device performance in
DIMENSIONS: MM/(INCHES)
TOLERANCES: .2/( .008) EXCEPT ꢀHERE NOTED
their specific applications.
REV 09/04
137