1005 Metric SMD NTC Thermistor 0402 10kOhms 1% 3380K For Battery Chargers I Description Of The SMD NTC Thermistor 0402 NTC thermistor is a ceramic semiconductor thermal crystal sintered from various metal oxides mainly manganese, cobalt and nickel. It is extremely sensitive to temperature changes. Its zero-power resistance varies with the body temperature. As the temperature increases, the resistance value decreases exponentially, and the temperature coefficient is as high as (3~6%/â). A small temperature change will cause a large resistance value change. According to the R-T resistance temperature curve of the thermistor, the precise resistance value of each temperature point can be measured. In the circuit, the temperature can be digitally corresponded through the resistance value for temperature measurement and control.AMPFORT thermistors have low thermal time constants which result in extremely high rates of resistance change to accurately track the temperature. II Features Of The SMD NTC Thermistor 0402 1. Excellent solderability and high stability in environment 2. Excellent long time aging stability 3. High accuracy in resistance and B-constant 4. Reflow soldering possible 5. Lead is not contained in the product. 6. Recognized by UL/cUL III Applications Of The SMD NTC Thermistor 0402 Temperature sensing, protection and compensation in industrial, telecom and consumer applications. Examples are: Battery chargers Power suppliers Office equipment LCD compensation In-car entertainment VI Main Techno-Parameters(In static air) Of The SMD NTC Thermistor 0402 P/N Resistance(25) (k) B Value(25/50â)(K) B Value(25/85)(K) Permissible Operating Current(25)(mA) Dissipation Factor (mW/) Thermal Time Constant (s) QN0402X102F3450FB 1.0 3450 ±1% 3500 1.00 0