MZ21 Seires Disk Positive Temperature Coefficient Thermistor 19P 18mm 100R 120C 600V For Welding Machine

 
MZ21 Seires Disk Positive Temperature Coefficient Thermistor 19P 18mm 100R 120C 600V For Welding Machine
 
 
Working Principle
 
15P (100R) 16P (5R) 19P (100R) MZ126A (12R)
Connect the PTC thermistor in series in the load circuit. When the circuit is in normal working condition, the current through the PTC thermistor is less than the rated current. The PTC thermistor is in the normal state and the resistance is small, which will not affect the normality of the protected circuit. jobs. When the circuit fails, the current greatly exceeds the rated current (2 times of the normal working current), and the PTC thermistor suddenly heats up, showing a high resistance state, so that the circuit is in a relatively "off" state for protection purposes. When the fault is removed, the PTC thermistor automatically returns to a low impedance state and the circuit resumes normal operation.
 
 
Application
 
Switching power supply
Transformer,adapter,charge
Electronic coil,control panel
Household appliances(air condition,oven)
Electronic circuit
Instrument
 
 
 
Application-Other part
 
Inverter welding machine is more and more popular in the world since technoloy required for manufacturing, however, good protection can assured inverter welding machine functioning well for long term. We can supply all set of components for overcurrent protection / overvoltage protection. Below is lists we supplying our customers for your ref:
 

 
 
Dimension (mm)
 

 
 
Electrical Performances
 

 
 
Part Numbering
 
MZ 2 1 - P 101 R M N
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
 
① : PTC Thermistor
② : Product type 2-Current Limiter 3- Delay Time
③ : 1-Coating type 2-Plastic Type 3-Empty type
④ : Switch temperature P 120C
⑤ : Resistance value- 100 Ohm
⑥ : Ohm
⑦: Tolerance K:±10%, M:±20%, N:±25%
⑧: Diameter of Chip N:Ф18mm
 
 
Resistance-Temperature curve
 

 
 
Current-time curve
 

 
 
 
Manufacturing Process
 
Weighing ⇒ Ball Milling ⇒ Presintering ⇒ Granulation ⇒ Forming ⇒ Sintering ⇒ Add electrode ⇒ Resistance sorting ⇒ Pressure line ⇒ Package insulation ⇒ Assembly ⇒ Withstand voltage detection ⇒ Resistance Inspection ⇒ Final inspection ⇒ Packaging ⇒ Put into warehouse .
 
 
Manufacturing Scene
 

The main production line and inspection equipment & instrument are imported from Japan, America, Belgium and Switzerland and Taiwan etc. The annual production capacity of the two leading products has been reached to 5 million pcs and 150 million pcs respectively, with the market holding rate in China of about 10% and 30% respectively by continually technical innovation. Varistors and SPD produced by the company enjoyed great reputation in the international market, being exported to many countries and areas such as Japan, USA, Hong Kong etc., with the customers like Philips India and GE in USA. FBT are already sold to LG company in Korea with large quantity, and also to Spain and India etc.