適用於隨身聽、MP3、手機免持聽筒，高級儀器上需要雙向同步的軌道追蹤控制，收音機需要立體聲等微小設備上
1.General
1.1Application:This specification is applied to potentiometers used for electronic equipment.
1.2Standard atmospheric conditions
Unless otherwise specified,the standard range of atmospheric conditions for making
measurements and test is per the following limits:
Ambient temperature ：15℃ to 35℃
Relative humidity ：25% to 75%
Air pressure ： 86 kpa to 106 kpa
1.3Operating temperature range ：-10℃ to +50℃
1.4Storage temperature range ：-15℃ to +70℃
1.5Suggested storage period ：About 6 months
2．Electronic Specification :
|
|
Item |
Conditions |
Specifications |
|
2.1 |
Total resistance |
Measurement shall be made by the resistance between terminal 1 and 3 with lever settled at terminal 1 or 3. |
xx KΩ |
|
2.2 |
Total resistance
tolerance |
|
±20% |
|
2.3 |
Resistance taper |
Measurement shall be made by the resistance law method.Measurement stall be made at the position of right diagram from the edge at the side of terminal 1.When based on terminal 3. from the edge at the side of terminal 3.
Out voltage between terminals1and2
--------------------------------------------------- X 100%
Applied voltage between terminals 1and 3 |
B |
|
2.4 |
Residual Resistance |
|
10Ω |
2．Electronic Specification :
|
|
Item |
Conditions |
Specifications |
|
2.6 |
Rated voltage |
Rated voltage E=√P.R (V)
P: power rating
R: nominal total resistance
When the rated voltage exceeds the maximum operating voltage, the maximum operating voltage shall be the rated voltage |
AC 100 V |
|
2.7 |
Rotational noise |
Dc 20V,when the rated voltage is 20v or less, its rated voltageShall be applied to the terminals between 1 and 3.And then the Procedures, refer to IEC 393-1-4.15 Traveling speed:20=/sec |
Less than 47mV |
|
2.8 |
Insulation resistance |
A voltage of 150vDC shall be applied for1min,after which measurement shall be made |
50 MΩor more |
|
2.9 |
Withstand voltage |
Trip curr ant:2mA Measuring frequency:50/60Hz
250V AC for 1min. |
Without damage to parts,
Arcing or breakdown etc |
3. Mechanical Specification :
|
|
Item |
Conditions |
Specifications |
|
3.1 |
Travel |
|
5mm±0.5 |
|
3.2 |
Sliding force |
|
15∽60gf.cm |
|
3.3 |
Stopper strength |
|
1kgf.cm Max |
|
3.4 |
Sliding life |
|
10,000 Cycles Min |
4. Soldering conditions
4.1 Manual soldering :
Temperature of soldering iron ：300℃or less.
Application time of soldering iron :within 3s.
4.2 Dip Soldering
Printed wiring board: Single-sided copper clad laminate board with
thickness of 1.6mm .
