PTC resettable fuses (overcurrent protection)
Overcurrent protection plate cell (PTC) is made of polymer material with conductor.
Physical characteristics
Maximum operation/storage temperature:-40℃-85℃
Maximum surface temperature:130℃
Aging performance of high-temperature:85℃,1000h,△R≦±10%
Aging performance of high-temperature and high-humility:85%RH,1000h,
R≦±10%
Thermal shock:=125℃-40℃,10times,1000h, △R≦±10%
Vibration:10g,10times, △R≦±5%
DIMENTION:
|
MODEL
|
A
|
B
|
C
|
D
|
E
|
F
|
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
|
RFE-175
|
3.8
|
4.1
|
2.5
|
3.5
|
21
|
24
|
12
|
12.5
|
4.2
|
5.5
|
0.6
|
0.9
|
Interactive test methods and standards
|
Item
|
Test method
|
Standard
|
|
Dimension
|
Dimension size and mark
|
|
|
Zero resistance
|
25℃
|
Rmin≦R≦Rmax
|
|
Action time
|
25℃,Ih
|
T≦Ts
|
|
Rrnning current
|
25℃,Ih,30min
|
No action
|
|
Stand current
|
Vmax,I max,100times
|
No arcing,no flame
|
|
Stand voltage
|
Vmax,5Ih,48h
|
No arcing,no flame
|
