Ceramic PTC Thermistor: PSB Series
Case Type for Inrush current Limiter
Reliability Test
Item
Standard
Test conditions and Methods
Specifications
Robustness of
Terminations
Gradually apply 40±0.5N and keep the unit fixed
for 10±1 sec.
∣△R25/R25∣≦20%
IEC 60738-1
No visible damage
At least 95% of terminal
electrode is covered by
new solder
Solderability
IEC 60738-1 245±3 ℃ , 2±0.5 sec
Resistance to
Soldering Heat
∣△R25/R25∣≦20%
IEC 60738-1 260±3 ℃ , 10±1 sec
No visible damage
Frequency range:10~55Hz
Amplitude:0.75mm or 98m/s2
IEC 60738-1
∣△R25/R25∣≦20%
Vibration
Shock
Direction:3 mutually perpendicular directions
No visible damage
Duration :6hrs(3x2 hrs)
Wave: half-sine
⊿V:1.0m/s
∣△R25/R25∣≦20%
IEC 60738-1
IEC 60738-1
Acceleration:50 m/s2
Pulse time:30ms
No visible damage
The thermal shock conditions shown below shall be repeated
5 cycles.
Step
Temperature (℃)
-40 ± 5
Period (minutes)
30 ± 3
Rapid Change of
Temperature
∣△R25/R25∣≦20%
1
2
3
No visible damage
Room temperature
85 ± 5
5 ± 3
30 ± 3
4
Room temperature
5 ± 3
Dry heat:125 ℃for 16hrs
Damp heat first cycle: 40℃,95%R.H ,cycle time:24hrs
Cold: -25℃for 2hrs
∣△R25/R25∣≦20%
Climatic Sequence IEC60738-1
No visible damage
Damp heat (cyclic), remaining cycles:5 cycles
Test according to IEC60068-2-30
Damp Heat,
IEC 60738-1
Steady State
∣△R25/R25∣≦20%
40±2℃,90~95%RH, 1000±2hrs
85±5℃, Vmax, 1000±2hrs
No visible damage
Endurance at
Maximum
∣△R25/R25∣≦20%
Operating
Temperature and
Maximum Voltage
Endurance for
Charging of
IEC 60738-1
No visible damage
Specification
Standard
Operating cycles at Vmax >100,000 cycles
(charging of capacitor)
∣△R25/R25∣≦20%
No visible damage
Capacitor
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
All specifications are subject to change without notice.
24
www.thinking.com.tw
2014.05