DatasheetsPDF.com

NTC5D-9 Dataheets PDF



Part Number NTC5D-9
Manufacturers ETC
Logo ETC
Description NTC THERMISTOR
Datasheet NTC5D-9 DatasheetNTC5D-9 Datasheet (PDF)

NTC NTC THERMISTOR NTC NTC THERMISTOR OUTLINE 2 1200 4 This is a Negative Temperature Coefficient Resistor Whose resistance changes with ambient temperature changes. Thermistor comprises 2or 4 kinds of metal oxides of iron, nickel,cobalt, manganese and copper, being shaped and Sintered at high temperature(1200 to 1500 ) 1500 NTC Rt Critical Technical Parameters of NTC Thermistor Rt---Resistance Value at Zero-power It's a resistance which is got at a fixed temperature on a basis of a testing p.

  NTC5D-9   NTC5D-9



Document
NTC NTC THERMISTOR NTC NTC THERMISTOR OUTLINE 2 1200 4 This is a Negative Temperature Coefficient Resistor Whose resistance changes with ambient temperature changes. Thermistor comprises 2or 4 kinds of metal oxides of iron, nickel,cobalt, manganese and copper, being shaped and Sintered at high temperature(1200 to 1500 ) 1500 NTC Rt Critical Technical Parameters of NTC Thermistor Rt---Resistance Value at Zero-power It's a resistance which is got at a fixed temperature on a basis of a testing power which causes resistance to Vary in a range which can be ignored in relation to the total testing eror. R25 R25---Resistance Value at Rated Zero-power The design resistance of the thermistor usually refers to the resistance value got at Zero-power at 25 , which is usually indicated on the thermistor. B Value B value stands for the thermal exponent at a negative temperature coefficient. lt's defined as a ratio of the balance between the natural logarithms of resistance values at zeropower to the balance between the reciprocals of the two temperatures.The formula is as below: RT1 ( 1 / T1 Rt2 1 ) T T R = 1 2 ln T1 T2 RT2 T2 T1 R T1 ( 1 / T1 R t2 1 ) T1 T2 R = ln T1 T2 R T2 T2 T1 25 B B B=ln B=ln RT1 RT2 T1 T2 B 25 ( 298. ( 323.15K ) ,B In this formula: RT1 is the resistance at Zero-power when the temperature is T1 RT2 is the resisrtance at Zero-power when the temperature is T2 Unless otherwise specified, B value is got by calculating the Zero-power resistances at 25 working temperature. Resistance-to-Temperature Coefficient at Zero-power It refers to the ratio of changes of a thermistor. Resistance value at Zero-powerwhen The temperature, to the resistance value at Zero-power The formula is as below: B T2 ( 298.15K ) and50 ( 323.15K ) . It's not a firm constant within the range of 15K ) 50 T T = 1 DRT = RT DT T = 1 DR T = R T DT B T2 T T T ( B K ) RTT B In this formula, " " stands for the resistance-temperature coefficient at Zero-power when the temperature is T: RT stands for the resistance value at Zero-power when the temperature is T T stands for thetemperature(in K) B stands for B value 1 Free Datasheet http://www.Datasheet4U.com Imax Max steady state current. The maximun allowable continuous current passing through thermistor at 25 . Dissipation Coefficient It's the ratio of the changes with a thermistor dissipation power, in , =P/T a pre-set ambient temperature, to the changes with the = P/ T changes in temperature. The formula is as below: response when the ambient temperature changes, within the ranges of the working temperature. Thermal Time Constant At Zero-power and when amutatio occurs with the temperature, the time "t", which is-spent for finishing 63.2% of the gap between 63.2% C =C / the beginning temperature and the ending temperature in the thermistor. is directly proportional to"c",the heat capacity of the thermistor, and is inversely proportional to constant. That is " , the dissip ation =C/ ". APPLICATIONS USB Conversion power supply, switch power, UPS power, Kinds of electric heter, electronic energy-saving lamps, electronic ballast etc all kinds of power cicuit proterction of electronic equipments, filament proterction of CRT, bulb and other lighting lamps. 2 Free Datasheet http://www.Datasheet4U.com NTC NTC THERMISTOR (NTC) Surge-Arrestor NTC Thermistor FEATURES Small in size,high-powered, and very capable of bringing down the surge current; Quick in reaction; High in B value and low in residual current; Long service life and high reliability; High coefficient of safety and wide range of application. B HOW TO ORDER NTC 10 D 13 10 Negative Temperature Cofficient Resistor Resistance Value:10 13 Diameter of Chip: 13 DIMENSIONS (mm) A D F C E (mm) Type D-20 D-15 D-13 D-11 D-9 D-7 A MAX C 1 D MAX E 0.05 1.0 1.0 0.8 0.8 0.8 0.5 F MAX 4 4 4 4 4 4 22 16.5 14.5 12.5 10.5 8.5 7.5/10 7.5 7.5 7.5 7.5 5.0 7 6 6 5 5 5 1 2 13 G H 2A E 0.6 Remarks:1 "E"value may be 0.6 for resistors for which the chip's diameter is 13 and the working current is 2A. 2 "G"column and "H" column stand for bend dimensions of the lead. 3 Free Datasheet http://www.Datasheet4U.com SPECIFICATIONS & PROPERTIES R25 Model NTC 5D-7 NTC 8D-7 NTC 10D-7 NTC 16D-7 NTC 22D-7 NTC 2.5D-9 NTC 3D-9 NTC 5D-9 NTC 8D-9 NTC 10D-9 NTC 16D-9 NTC 22D-9 NTC 25D-9 NTC 35D-9 NTC 50D-9 NTC 60D-9 NTC 80D-9 NTC 100D-9 NTC 120D-9 NTC 200D-9 NTC 300D-9 NTC 2.5D-11 NTC 3D-11 NTC 5D-11 NTC 8D-11 NTC 10D-11 NTC 16D-11 NTC 2.5D-13 NTC 3D-13 20%( 5 8 10 16 22 2.5 3 5 8 10 16 22 25 35 50 60 80 100 120 200 300 2.5 3 5 8 10 16 2.5 3 5 8 10 16 3 4 5 8 10 16 3 5 8 10 ) (A) Max Steadycurrent(A) 2 1.5 1 0.7 0.6 4 4 3 2 2 1 1 1 1 1 1 0.8 0.8 0.8 0.5 0.5 5 5 4 3 3 2 6 6 5 4 4 3 7 6 6 5 5 4 8 7 6 ( ) Approx R of Max.Cur.( ) 0.241 0.436 0.572 0.897 1.083 0.128 0.133 0.236 0.382 0.476 0.688 0.899 0.914 1.103 1.265 1.521 2.108 2.576 3.115 5.900 9.150 0.120 0.126 0.288 0.301 0.395 0.488 0.099 0.112 0.136 0.256 0.27.


NTC3D-9 NTC5D-9 NTC8D-9


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)