Inrush Current Limiting NTC Thermistor MF72 series
Brief Introduction:
MF72 series NTC thermistor devices for limiting surge current are made of a specially formulated metal oxide ceramic material and in the form of radial resin coated that is capable of limiting high surge current.Applying power NTC thermistor in the power supply loop is the most simple, convenient and effective measure to restrain switch-on surge current and protect electronic equipment.
Product Application:
1. Conversion power supply, switch power supply, UPS power
2. Power supply circuit, electronic circuit of equipments
3. Electric heater
4. Electronic ballast
5. Oscillight,display
6. Filament protection of bulb,electronic energy-saving lamps and other lighting lamps
Main parameter:
Zero Power Resistance Value R25（Ω）
Maximum stable current I（A）
Approximate resistance in maximum current（Ω）
Thermal time constant（S）
Dissipation factor （mW/ ℃）
Operating temperature range -55~+200 ℃
Advantages:
1.long service life,high reliability,wide operation range
2.small dimension,large power,strong in inrush current limiting
3.fast response to surge current
4.large material constant,low resistance residue
5.can limit inrush current effectively
6.minimum power loss in stationary state(Normally just 1W or less than 50W power)
7.high thermal resistor and electrical reliability
8.wide selection of electrical characteristics
9.Wide operating temperature -55~+200 ℃
Comparison without and with NTC thermistor application
Many specifications for choice,and samples&orders can be custom made per customers' requirement.
