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.
Nanjing Shiheng Electronics Co., Ltd. is a high-tech enter-prise specializing in the PRO-duction of a series of sensitive elements including negative temperature coefficient (NTC) thermistors, NTC sensors, positive temperature coeffic-ient (PTC) thermitors and zin-coxide voltage dependants.
The company has modern standard workshops with the complete automaticproduction facilities, perfect special measuring and testing instruments and a strict total quality control system (ISO9001).
Shiheng has a number of acknowledged experts and specialists in the profession of thermistors. Currently, the technical and management personnel constitute over 20% of the total staff. Therefore, the company has strong R&D capability and has acquired several patents. The actual monthly production capacity of thermistors temperature sensors, and of voltage thermistors has come up to 15 million 500 thousand and 5 million pieces.
The company is one of the largest enterprises producing thermistors in domestic. Major products are lead-free produced according to Euro RoHS Directives. MF72 power thermal sensitive resistors and MF52 temperature measurement thermal sensitive resistors have been certified to CQC and C-UL, UL.
The products are widely applied in the fields of industrial electronic equipment, telecommunication, electric power, transportation, medical apparatus, household applicances, testing instruments and power equipment etc., and NTC thermistors, its major products, have been exported in large quantities.
