BOURNS SDTM-610-KTR

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Features
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Available sharp click feel with a positive
tactile feedback
Ultra-miniature and lightweight structure
suitable for high density mounting
Very economical with high reliability
RoHS compliant*
The SDTM Series is currently available,
although not recommended for new
designs.
■ Insert molding in the contact with special
treatment prevents flux buildup during
soldering and permits autodipping
SDTM Series SMD Tact Switch
Electrical Characteristics
Electrical Life
.................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.
Dielectric Strength
...........................AC 250 V for 1 minute
Contact Arrangement ...1 pole 1 position
Environmental Characteristics
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 ............10-50-10Hz/1minute
Directions..............X,Y,Z 3 mutually per
pendicular directions
Time..................2 hours each direction,
high reliability
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
How To Order
Product Dimensions
SDT M - 6 10 - K TR
SDTM-610/620/630/650/660
4.30
(.169)
CL
Model
0.70
(.028)
Product Code
M = SMD
T1
Size
6 = 6 mm
Height
10 =
20 =
30 =
44 =
48 =
50 =
60 =
T2
4.50 ± 0.20
CL
(.177 ± .008)
T3
4.3 mm
5.0 mm
7.0 mm
7.3 mm (square head)
7.3 mm (square head)
9.5 mm
13 mm
T4
0.50
MAX.
(.020)
Actuating Force
K = 100 g (black head)
N = 160 g (brown head)
R = 260 g (red head)
S = 320 g (salmon head)
Y = 520 g (yellow head)
CL
3.50
(.138)
0.200 ± 0.10
(.008 ± .004)
9.0 ± 0.2
(.354 ± .008)
SDTM-644/648
4.30
(.169)
CL
0.70
(.028)
6.20
(.244)
T1
T2
__ = Tube
All models = 77 pcs.
4.50 ± 0.20
CL
(.177 ± .008)
*not applicable to Model 660.
T3
CIRCUIT DIAGRAM
Cover Materials ..............Steel, tin plated
Base Materials .......Thermoplastic Nylon
FG 101, UL94V-0
Actuator Materials ............Thermoplastic
Nylon UL94V-0
Color .........................Black, brown, red
Contact Disc. Materials ...........Phosphor
bronze with silver cladding
Terminal Materials ........Brass with silver
cladding
3.50
DIA.
(.138)
H ± 0.20
(H ± .008)
0°-4°
Packaging Option
TR = Embossed tape*
610 = 1000 pcs.
620 = 900 pcs.
630 = 700 pcs.
644, 648 = 500 pcs.
650 = 380 pcs.
Physical Characteristics
6.20
(.244)
T1
T2
T3
T4
T4
SDTM-644: 2.4 DIA.
(.095)
SDTM-648: 2.8 DIA.
(.110)
7.30
(.287)
CL
0.50
MAX.
(.020)
3.50
(.138)
0°-4°
0.200 ± 0.10
(.008 ± .004)
9.0 ± 0.2
(.354 ± .008)
RECOMMENDED PCB LAYOUT
9.50
(.374)
6.40
(.252)
4.50
(.177)
T1
T2
T3
T4
1.30
(.051)
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.
TOLERANCES:
MM
(IN)
0.2
EXCEPT WHERE NOTED.
(.008)
SDTM Series SMD Tact Switch
Packaging Specifications
SDTM-610/620/630/644/648/650(TR)
SDTM-610/620/630/644/648/650/660(TUBE)
7.5
(.295)
16.00 +0.30/-0.10
(.630 + .012/-.004)
2.0 ± 0.10
(.079 ± .004)
R
6.5
(.256)
0.5
(.020)
R
9.4
(.370)
1.0
(.039)
DIM. A
SDTM-630, 644, 648
10.40
(.409)
SDTM-650, 660
15.9 ± 0.1
(.626 ± .004)
SDTM-610, 620
5.5
(.217)
A
1.50 +0.25/-0.00
(.059 +.010/-0.00)
DIA.
DIMENSIONS:
2.6
(.102)
1.8
(.071)
4.00 ± 0.10
(.157 ± .004)
MODEL NO.
10.6 ± 0.1
(.417 ± .004)
1.8
(.071)
6.0 ± 0.5
(.236 ± .020)
TOLERANCES:
MM
(IN)
0.2
EXCEPT WHERE NOTED.
(.008)
12.00 ± 0.10
(.472 ± .004)
1.50 + 0.10/-0.00
(.059 + .004/-0.00)
DIA.
Temperature (°C)
Reflow Soldering Profile
MAX. 260 °C
255 °C
230 °C
150 °C
Room Temperature
120~150 Seconds
Time (Seconds)
5~10 Seconds
60 Seconds
REV. 08/06
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.