Function:PTC Thermistor Special for over current,overload protection of welding machines. MZ31 series 15P,16P,19P PTC thermistor are million- time safety thermistor of automatic circuit protection,recoverability, using repeatedly, and no trigger, noise or protective component that could protect and restore from abnormal temperature and current automatically,which called "auto restore fuse" and "ten-thousand-time fuse".Recoverability, using repeatedly, and no trigger, noise or sparks.Welcome to buy 19P 19MM MZ21 0.5W PTC Thermistor PTC Hold Current For Welding Machine from Aolittle. Every request from customers is being replied within 24 hours.
19P 19MM MZ21 0.5W PTC Thermistor PTC Hold Current For Welding Machine
19P Current Limited PTC Thermistor MZ21-P101RNM 19MM 100OHM For Welding MachineI Brief Introduction Of The19P Current Limited PTC Thermistor
Function:PTC Thermistor Special for over current,overload protection of welding machines.
MZ31 series 15P,16P,19P PTC thermistor are million- time safety thermistor of automatic circuit protection,recoverability, using repeatedly, and no trigger, noise or protective component that could protect and restore from abnormal temperature and current automatically,which called "auto restore fuse" and "ten-thousand-time fuse".Recoverability, using repeatedly, and no trigger, noise or sparks.
The above three models are all used for overcurrent overload protection of welding machines, just different welding machine size use different PTC thermistor Model.
When the circuit is in normal state, the current passing through the PTC thermistor is less than the rated current, and the PTC thermistor is normal and the resistance is small.Does not affect the normal operation of the protected circuit. When the circuit fails and the current greatly exceeds the rated current, the PTC thermistor suddenly heats up and is in a high resistance state. The circuit is disconnected to protect the circuit from damage. When the failure is eliminated, the PTC thermistor automatically returns to a low resistance state and the circuit returns to normal operation.
III Overall Dimension Of The19P Current Limited PTC Thermistor
IV Characteristics Curve Of The19P Current Limited PTC Thermistor
typical trip current
Operating ambient temperature range
|MZ21-P101RNM||100Ω±25%||120℃||600 V||180 mA||360 mA||-10~+45℃|
VI Advantage Of The19P Current Limited PTC Thermistor
1.Automatic circuit protection,can resume steadily,
2.contactless,noiseless and flameless,
4. with a better performance of overvoltage protection,
5.wide operating voltage range,
6.small steady resistance,
7.low rated current,
8.small resistance,small size,
9.stable for a long time,
10.no need to be reset supply after overload protection,
11.wide operating temperature range, 0 ~ +60°C (V=Vmax), -25 ~ +125°C (V=0),
Special PTC Thermistor for Welding machine overload protection
Appearance and Dimension(In: mm)
finished product diameter 15.5-16 .0 mm, mold size is 16mm.
Foot distance is 7.5 ± 0.5 mm.
Foot length: the length of the cut foot is 5mm.
16P Thermistor: finished product diameter 17-17 .5 mm, mold size is 20 mm.
Foot distance is 5 ± 0.5 mm.
Foot length: the length of the cut foot is 8mm.
finished product diameter 17.5-18 .0 mm, mold size is 20mm.
Foot distance is 7.5 ± 0.5 mm.
Foot length: the length of the cut foot is 6mm.
16P is thinner than 15P and 19P is thicker than 15P and 16P.
VII Application Of The19P Current Limited PTC Thermistor
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:
|PTC Thermistor||126A 15P 16P 16P5R0M265 08M12RM265 05M120-180 19P MZ72-18ROM MZ11-13N13-20 MZ12-16P2R1H140,MZ12-16P4R7H140,MZ11-16P5R0H265,MZ11-16P6R0H265,MZ11-16P7R0H265,MZ11-16P10RH265,MZ11-16P12RH265,MZ72-18RM|
|NTC Thermistor||2.5D-20 5D-20 8D-20 47D-15 2.5D-15 47D-20|
Glass fuse/Ceramic fuse 3.6x10mm/5x20mm/6.35x31.8mm/10x38mm STP/SFP/BTC/BFC/BMT/BMF/PTU/PFU
VIII Manufacturing Process Of The19P Current Limited PTC Thermistor
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 .
VIIII Other part number Of The19P Current Limited PTC Thermistor