SPECIFICATION
TACT SWITCH
1. GENERAL
PAGE
1/4
1.1 Application : This specification is applied to low current circuit tactile switch for electronic
equipment.
1.2 Operating temperature range : -20 ~ 70℃, 45 ~ 85% RH
1.3 Storage temperature range : -30 ~ 80℃.
However, 96 hours maximum for continuous
storage over a range -20 ~ -30℃ and a range 70 ~ 80℃.
1.4 Test conditions : The standard test conditions shall be 5 ~ 35℃ in temperature,
45 ~ 85% RH and 860 ~ 1060mbar in atmospheric pressure.
Should any doubt arise in judgement, tests shall be conducted
at 20±2℃, 65±5% RH and 860 ~ 1060mbar.
2. RATED VOLTAGE AND CURRENT.
DC 12V 50㎃
3. ELECTRICAL PERFORMANCE
PROPERTY
3.1
Contact
arrangement
Contact
resistance
Measured at DC 5V 10mA or by ohmmeter allowing
a small current at 1㎑ with 150% of actuating force.
TEST CONDITIONS
PERFORMANCE
* 1 pole, 1 throw.
3.2
* As per individual
manufactured drawing.
3.3
Insulation
resistance
DC 100V is applied between terminals and
between terminals and cover for 1minute
±5seconds.
AC 250V (50 ~ 60㎐)is applied between terminals
and between terminals and cover for 1 minute.
* greater than 100㏁.
3.4
Dielectric
strength
* No insulation defect
shall be observed.
3.5
Bounce
Measured by lightly striking the center of the
stem at a rate of 3 operations/sec..
* less than 5 msec.
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JT 0115LF
SPECIFICATION
TACT SWITCH
4. MECHANICAL PERFOMANCE
PROPERTY
4.1
Actuating
force
TEST CONDITIONS
A gradually increasing load is applied to the
center of the stem.
PAGE
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PERFORMANCE
* As per individual
manufactured drawing.
* 160gf, 260gf :
greater than 50gf.
* 100gf，130gf :
greater than 30gf.
* Shall be free from
mechanical and
electrical abnormalities.
* Shall be free from
mechanical and
electrical degradation.
* As per individual
manufactured drawing.
* Tactile feed-back.
4.2
Return force
After actuating, the load is gradually decreased
until the stem returns to its free position.
4.3
Stop strength
A static force of 3Kgf shall be applied to the
direction of operation for 3 seconds.
Stem
4.4 withdrawal
force
4.5
4.6
Travel
Arrangement
of action
A static load of 500gf is applied to the
direction of pulling for 3 seconds.
5. DURABILITY
PROPERTY
TEST CONDITIONS
PERFORMANCE
* Contact resistance :
500mΩ max.
* Bounce : 20msec max.
* Actuating force :
within ±30% of the
initial value.
* The requirement in Item
3 and 4 shall be met.
5.1
Operating life
100,000cycles operation with a load of 150% of
Actuating force a rate of 2 cycles/sec.
With a resistive load supplying DC 12V 50㎃.
5.2
Shock
resistance
An impact load of 30g is applied according to the
method 205 , MIL-STD 202.
5.3
Vibration
resistance
* The requirement in Item
3 and 4 shall be satisfied
The test is conducted according to the method 201,
without any degradation in
MIL-STD 202.
both apperance and
actuation.
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JT 0115LF
SPECIFICATION
TACT SWITCH
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6. WEATHER PROOF
PROPERTY
TEST CONDITIONS
After testing at -30℃ for 96hours, the sample is
allowed to stand under normal temperature and
humidity conditions for 1hour and measurement
is performed within 1hour after that.
Water drops should be wiped off.
After testing at 85℃ for 96hours, the sample is
allowed to stand under normal temperature for
1hour and measurement is performed within
1hour after that.
After test at 60±2℃ and 90 ~ 95% in relative
humidity for 96hours, the sample is allowed to
stand under normal temperature and humidity
conditions for 1hour, and measurement is
performed within 1hour after that.
Water drops should be wiped off.
PERFORMANCE
6.1
Cold
heat proof
* The requirement in
item 3 and 4 shall
be met.
6.2
Dry
heat proof
6.3
Damp
heat proof
* Insulation resistance :
10㏁ minimum.
* Dielectric strength :
same as item 3.4.
* Contact resistance :
same as item 3.2.
* The requirement in
item 3 and 4 shall
be met.
1 cycle
+65℃
-10℃
6.4
Thermal
cycling
2H
1H
2H
1H
; After the test conducted under 5 cycles the
sample is allowed to stand under normal
temperature and humidity conditions for
1hour, and the measurement is performed
within 1hour.
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JT 0115LF
SPECIFICATION
TACT SWITCH
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7. REFLOW SOLDERING
7.1 Reflow soldering conditions
1) Preheat ------------ 150℃ ~ 200℃, 120 ±20 (sec)
2) Peak temperature --- 260℃ max. 10 (sec)
3) Soldering area temperature ------ 217℃, 90 ~ 120 (sec)
Temp.
℃
260
Peak Temperature
220
150
Preheating area
Soldering area
25
time(sec)
< Temperature profile >
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