file NO .EK：HH05009-2001A-2019A.5020A-5023A
1) CONTACT LEAD
Soldering Bath Temperature ; 300℃
Immersing depth ; 2mm
3. OPERATING PRINCIPLE & CONSTRUCTIONS
4. CALIBRATION VERIFICATION
a. The samples of TCO are to be tested using electrically heated static-air oven.
b. Equilibrium conditions of oven temperature prior to the starting of the test are
to be established 10℃ below the rated Tf for 2 hours.
c. The temperature is then to be increased at a rate of 0.5℃/minute until the
d. The opening temperature of each TCO shall not differ by more than plus 0℃
and minus 5℃ from the rated Tf.
5. THERMAL ELEMENT STABILITY(Aging)TEST
TCO are to be subjected to the following series of tests. Each sample shall
function at some time during the test steps.
Samples remaining intact at the conclusion of each step are to be submitted
to the next step.
The samples are to be subjected to a temperature Tf minus 15℃ for 3weeks.
At the conclusion, at least 50% of the samples shall not have functioned.
Tf minus 10℃ for 2 weeks
Tf minus 5℃ for 1 week
Tf minus 3℃ for 1 week
Tf plus 3℃ for 24hours
6. INSULATION RESISTANCE
Affer the fusing test of TCO, insulation resistance between lead and contact lead of
the test sample shall be more than 0.2MΩ. The insulation resistance to be
measured with a DC voltage of twice the rated voltage.
7. DIELECTRIC VOLTAGE WITHSTAND
TCO shall withstand for 1 minute without breakdown a 60Hz essentially
sinusoidal potential twice the rated voltage applied between leads or terminals
of an opened TCO.
8. DIELECTRIC RESISTANCE
Dielectric resistance measurement to be done between both leads at the
distance of 30mm including the body. Dielectric resistance shall be more than
9. TEMPERATURE RISE
Temperature rising of TCO shall be not more than 10℃, when the r
current to be passed through the TCO.