Description
NTC thermistor
1.Power NTC thermistor introduction
Power NTC thermistor has en excellent non-linearity characteristic
for the resistance and temperature ,its appliance is an easy and
effective method to protect electronic device through surge current
restraining .
2.Resistance and temperature characteristic of power NTC
thermistor
Power NTC thermistor can effectively restrain the surge current in
the circuit ,and its resistance will fall down to a very small
state through the current durative and the power consumption is
commonly ignored , the coltage will be borne by the rear divice so
that to guarantee the normal function of circuit .
The intergradations metal oxide as the main material , power NTC
thermistor is a kind of semi-conductive component manufactured by
the ceramic productive process technique ,it belongs to the
category of negative thermistor series .
3.Range of application
Power NTC thermistor are widely applied in switch power ,conversion
power supply ,UPS power and electronic rectifier ,heater ,etc , it
has a protected function for RT ,display ,lighting device and
circuit of different electronic equipments .
4.Nomenclature
explanation
- Zero-power
resistance (R*5) : the measured resistance of power NTC thermistor
under the condition of *5C with a rated zero-power
.
- The maximum steady
current (Imax):the maximum current that could be allowed connecting
with the power NTC thermistor under the rated current condition
(virtual value)
5.Characteristic of
power NTC thermistor
- Power NTC
thermistors are in small size but with a high power that to
restrain the surge current .
- Powe NTC
thermistors possesse the electronic character of fast reflection
,high reliability and long-life time for use.
- The material has a
high constant as B value with small remained resistance
.
- Power NTC
thermistors have a large application range integrate products
series .
6.Recognized standards and certificates
|
Recognized organization |
Recognized marks |
Recognized standard |
Certificates series No |
|
UL |
|
|
E*****7 |
|
CUL |
|
|
E*****7 |
