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Description:

ntc thermal resistor
>Glass bead diode style
>Fast Smart Reliable Stable
>UL/RoHS/ISO14001
> Tmperature sensor

 200K 3899NTC thermal resistor with UL/RoHS 

 for Cookerand electric heaters

  Temperaturesensors      

 

200KNTC thermal resistor Parameters 

ItemNo.	MJD-200K-3899
Resitanceat 25°c	200Kohm
Bvalue (25 °c/50 °c)	3899k/-1%
Accuracy ofResistance at  25°c	/-1%,2%, 3%, 4%, 5%
Certificate	UL/RoHS
Application	TemperatureSensor ntc temperature sensor

 

Descriptionof NTC thermal resistor

1>NTC thermistor is one where the thermistor chip is encapsulated inglass tube with high accuracy and good stability
2>The element has a bead form with good stability, small size andrapid response
3>Widely used in temperature sensors, temperature compensation,electronic thermometers and eternity calendar, various kinds ofhousehold appliances as well  Thermistor for TemperatureSensor as Industrial, medical, environmental protection, weatherand food processing equipment etc.

Featuresof NTC thermal resistor

1.Agency recognition:UL/ RoHS
2.Glass sealed, radial lead
3.Fastest response time and high accuracy
4.Small size, lightweight and cheap
5.Operation temperature range: -40 to 260 degrees Celsius
6.Thermal time constant: less than 8s (In still air)
7.Usable in high-temperature and high-moistureenvironments
8. OEMand ODM orders are welcome

 

Specification ofNTC thermal resistor

1>Scope Thisspecification deals with shape, dimensions, characteristics,inspection standard etc. 2,Specifications 2.1Element: Thermistor, type: mjd-200k-3899-1 2.2Shape and dimensions (mm) 2.3Characteristics (1)Electricalcharacteristics (a)Resistancevalue: R( C) = 200KΩ ± 1% (b)Bvalue: B(25/50) = 3899K /- 1% (calculatedfrom resistance value at 25C and 50C) (c)Insulationresistance 100MΩ or over by DC500V megger (betweenglass and lead wire) (2)Thermal time constant (τ): τ≤20s (in still air) (3)Thermal dissipation constant (δ): δ≥2.0Mw/C (in stillair) (4)Operating temperature range:-50~ 260C 3Reliability 3.1high Temp. storage:Stored under 250C for 1000hours, the change rateof the R value is less than 2%. 3.2 LowTemp. storage:Stored under -40C for 1000 hours, the change rate ofthe R value is less than 2% 3.3High temperature and humidity:Stored in 60C 95%RH for 1000 hours,the change rate of the R value is less than 2%. 3.4Thermal shock: keep the thermistor in following temperature cyclingtest for 100 times, the change rate of the R value is less than2%. -40C10mins----25C5mins----200C10mins----25C 5mins 3.5Vibration: with 10g acceleration, 1, 5mm amplitude, 10Hz to 500z,15mins both from X, Y, the change rate of the thermistor is lessthan 2%. 3.6Pulling : pull the leads with 9.8N for 60 seconds, no damage to theappearance and the change rate of the thermistor is less than2%. 3.7Falling down :Free falling down from 1m height to specific boardfor 10 time, no damage to the appearance, and the change rate ofthe thermistor is less than 2%. 4Outgoing Inspection Theproduct shall be inspected at every delivery lot inspection items,sampling quantities and sampling acceptable standard are asfollows. InspectionItem Samplingacceptable Standard Remarks  Resistancevalue n=20,Ac=0, Re=1 2.3(1)(a) B-value n=10,Ac=0, Re=1 2.3(1)(b) InsulationResistance n=5,Ac=0, Re=1 2.3(1)(c) Shape& dimensions n=5,Ac=0, Re=1 2.2 Appearance n=5,Ac=0, Re=1 2.2   (2)Inspection data will be issued for pay upon request. 5Packing Packingshall be done not to cause damage or soil duringdelivery

 

Application ofNTC thermal resistor

♦  Temperature sensors
♦   Electronic thermometers and eternitycalendar
♦   Temperature compensation
♦   Household appliances ( air conditioners,microwave ovens, electric fans, electric heaters)
♦   Industrial, medical, environmental protection,weather and food processing equipment
♦   Apparatus coils, integrated circuits, quartzcrystal oscillators and thermocouples.
♦   Medical instrument
♦   Others

 

NOTICE:
1, MJDNTC thermistor is glass sealed, do not shake, press.
2,Jointing time should be less than 4s.
3, MJDNTC thermistor can not be used directly in water.

 

DearBuyer,
Inorder to help you get the exact model, please offer the followingnecessary info.:
1, Theapplication of the NTC thermistor:__________
2,Working environment of NTC thermistor:________
3, Therange of operation temperature:___°c to ___°c
4, Thedimension and the drawing of the Thermistor
5, TheR value:_____K ohm ±________% at _____°c,
6, TheB value: (_____°c/____°c) = ______K ± _____%
7, Thetheral time Value:____s --_________s, _______.

Number3, 5, 6 are necessary to write , other special needs can beadded.

 

Similar NTC thermal resistor -MJD

 

 

MoreNTC thermal resistor -MJB

 

 

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