MURATA PTGL07AS201M0N51B0 Replacement PTC Thermistors Posistor 200Ohm 130C For Inrush Current Suppression

MURATA PTGL07AS201M0N51B0 Replacement PTC Thermistors Posistor 200 Ohm 130C For Inrush Current Suppression

Features Of The PTC Thermistors Posistor 200 Ohm 130C For Inrush Current Suppression

1. Protection against overcurrent situations
2. Automatic reset from protective trip mode
3. Space-saving
4. Various characteristics to meet a suitable resistance value.

Applications Of The PTC Thermistors Posistor 200 Ohm 130C For Inrush Current Suppression

PTC Thermistors POSISTOR PTC for Inrush Current Suppression 
Limited Usage-Consumer Grade

Dimensions & Appearance Of The PTC Thermistors Posistor 200 Ohm 130C For Inrush Current Suppression

Green-Silicone Resin

Technical Parameters Of The PTC Thermistors Posistor 200 Ohm 130C For Inrush Current Suppression

Usage Environment Of The PTC Thermistors Posistor 200 Ohm 130C For Inrush Current Suppression

Actual Product Of The PTC Thermistors Posistor 200 Ohm 130C For Inrush Current Suppression

About us 

Dongguan Ampfort Electronics Co., Ltd. is one of the earliest companies in China to engage in the research and development and production of sensitive components. Since its establishment in 1988, the company has worked hard and has developed steadily. The company is based on the strong faculty of the School of Materials Science and Engineering of South China University of Technology and the advanced scientific research equipment. It has also trained a group of professional and technical talents with rich practical research and development, production, and application promotion. In the past three decades, the company has focused on research and development and producing green lighting energy -saving lamps, preheating soft start of electronic zone flowers, and instrumentation instruments small power transformers overheating, overvoltage protection, and 485 communication interface overcurrent, over -pressure protection thermistor PTCR, Adhere to the business philosophy of "doing a good job, refinement, and a specialized", and win the trust of well -known domestic and foreign enterprises. Especially in recent years, with the strong support of South China University of Science and Technology, the company has made profound research and repeated tests in composite thermistor. Among them The front -end over -flow protection has achieved gratifying results and the test of time. After hard work, in the power instrument and green lighting industry, the thermistor PTCR of our trademark is used as the preferred component, and the market share is among the best. The company's main customers include: Philips, Siemens, General Electric, Linyang Energy, Samsung Medical, etc.
The products applied to overload mainly include:

1. For transformer overload and overload protection, ordinary PTC thermistor is used;

2. Composite heat -sensitivity resistance for switching power/transformer overload protection;

3. 485 communication interface protection heat consumption heat consumption heat consumption heating use Avoid resistance;

4. Card table card anti -attack protection module; 5. Relay contacts protection PTC thermistor.

Introduction to PTC thermistor resistance

PTCR (POSITIVE TEMPARATURATURATURATUFIFINT of Resistance) is a thermistor with a strong temperature characteristic, which is mainly composed of Batio3. BATIO3 ceramics is a typical iron electrical material, which is greater than 1012Ω · cm. After the conducting doping, the strong PTC effect shows that the normal temperature resistance is very low. As the temperature rises, mutations have occurred near Juri Point, resulting in several magnitude changes. This is because the grain boundary of the polycrystal BATIO3 semiconductor material has a potential layer caused by the surface state. At the temperature of the Curie, the crystal boundary has iron electrical, the dielectric constant is very large, the potential height is low, the electrons are very high, and the electrons are very high. It is easy to pass through the potential barrier, the corresponding material resistivity is small, but when the temperature of the Curie is above the temperature, the crystal layer changes, the iron electrical disappearance, the dielectric constant decreases sharply. The potential is rising. With the sharp increase in the height of potential barriers, it is difficult for electrons to cross the power, and the resistivity of the corresponding materials has risen sharply, and the PTC effect of the material is macroely manifested. Due to the characteristics of the PTC thermistor, whether in industrial electronic equipment or household appliances, thermistor resistance has been widely used. The basic parameters are shown in the figure.

The figure below:

TC Curry Temperature: It is the starting point of PTC semi -porcelain change. Generally, the temperature point corresponding to the PTC component RMIN twice the resistance value;
TMAX maximum temperature: the corresponding temperature when the component reaches the highest resistance;
TP maximum working temperature: upper limit temperature within the scope of work;
TMIN minimum temperature: The temperature when the component (normal) presents the minimum resistance;
T25 standard room temperature 25 ° C;
RC switch resistance: that is, the corresponding resistance when the temperature of the point is at the temperature;
RMAX maximum resistance: the maximum resistance that the component can reach;
RP maximum working resistance: the resistance corresponding to the upper limit working temperature;
RMin minimum resistance: component (normal) minimum resistance;
R25 room temperature resistance: When the standard room temperature, the resistance corresponding to the component.