Being one of the largest sensitive elements manufacturer in mainland China, Nanjing Shiheng Electronics Co., Ltd. devotes to R&D, sales and production of all series negative temperature coefficient (NTC) thermistors, NTC sensors, positive temperature coefficient (PTC) thermitors and zinc oxide varistors.
The corporation has been passed ISO9001:2008 Quality Management System , TS16949 Quality Management System and ISO14001:2004 Environment Management System and awarded "High&tech Enterprise in Nanjing City", "Private Scientific Enterprise in Nanjing City" , "Private Scientific Enterprise in Jiangsu Province" and "National Hi-tech Enterprise".
The corporation has modern standard workshops of 25,000 m2 with the complete automatic production facilities, perfect special measuring and testing instruments and manufacture capacity of 1,000 million pieces sensitive elements annually. All the products are lead-free produced in compliance with EU ROHS Regulations. Major products have been certified by TUV, C-UL, UL and CQC. The products are widely used in industrial electronics equipment, communication, electric power, medical equipment, household electrical appliance, testing instrument, power supply equipment,military products etc.

MF72 Power NTC thermistor series

1. Introduction

An NTC thermistor has to be connected in series to the power source circuit to avoid the surge current at the instant when the electronic circuits are turned on. The device can effectively suppress the surge current, and its resistance and power consumption can be greatly reduced after that through the continuous effect of the current so as not to affect the normal work current. Therefore the Power NTC thermistor is the most convenient and efficient instrument to curb the surge current and protect the electronic devices from being damaged.

2. Applications

Applicable to the protection of the power circuits of conversion power supply, switching power supply, UPS power supply, electric heaters, electronic energy-saving lamps, electronic ballasts and other electronic devices, and the filament protection of color picture tubes, incandescent lamps and other lights.