19P 19mm 100Ohm NTC PTC Thermistors Positive Temperature Coefficient Thermistor

19P Current Limited 19MM 100OHM Welding Machine Positive Temperature Coefficient PTC Thermistor

Brief Introduction

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.

Working Principle

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.

Dimension

Characteristics Curve

Electrical Performance

Advantage

1.Automatic circuit protection,can resume steadily,

2.contactless,noiseless and flameless,

3.reacts fast,

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),

12.RoHS compliant.

Special PTC Thermistor for Welding machine overload protection

Appearance and Dimension(In: mm)

15P Thermistor:

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.

19P Thermistor:

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.

Application

Inverter welding machine

Contact Details:

Andy Wu

Email: andy@tianrui-fuse.com.cn

Tel/Whatsapp: +86 13532772961

Wechat: HFeng0805

Skype: andywutechrich

QQ: 969828363

Dongguan Tianrui Electronics Co., Ltd. was founded in 2010. It covers an area of 4,000 square meters and has a monthly production capacity of 50 million pieces. We are committed to be a comprehensive circuit protection component manufacturer and solution supplier. We are specialized in the design, development, production and sale of over-current protection, over-temperature protection, and over-voltage protection. Our products are widely used in consumer electronics, automobiles, ships, communications, power supplies, power tools, new energy and other fields. Our products cover auto-fuse, auto-fuse holder, current fuse, current fuse holder, temperature fuse, SMD fuse, resettable fuse, circuit breaker, thermal switch and so on. our products meet international standards including UL,

UR,CSA,CUL,VDE,TUV,PSE,CE,CCC,ROHS certification etc.

Partners:

Our products not only sell well in mainland China but also in North & South America, Southeast Asia and many other countries and regions. Our company has independent development and design capabilities, plastic molding, and metal stamping departments, and is equipped with multiple automatic fuse production lines and testing equipment and strives to find the best raw material suppliers. As we always put the quality at the first place, we have built a complete quality assurance system, which is the guarantee of the safety and stability of each product. Meanwhile, If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us.

We are looking forward to the cooperation with you in the near future.