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Medical Varnished Wire Enamelled Wire Bead Type NTC Thermistor 10KOhm 3435

Categories NTC Thermistor
Brand Name: UCHI
Model Number: MF51E
Certification: UL CQC
Place of Origin: CHINA
MOQ: 1000PCS
Price: Negotiable
Payment Terms: T/T, Western Union, MoneyGram,Paypal
Supply Ability: 50 Million Pieces Per Year
Delivery Time: 2 weeks
Packaging Details: Bulk
Type: MF51E Medical Application Varnished Wire Enamelled Wire Bead Type NTC Thermistor 10KOhm 3435
UL File Number: E240991
CQC File Number: 07001019009
R25: 0.2K~1000K OHM
Application: Electrical thermometer,Medical equipment
Excutive standard: Q/320115SHD07-2014
R25 Tolerance: ±0.5%, ±1%, ±2%, ±3% and ±5%
Beta value Tolerance: ±0.5%, ±1.0% and ±2.0%
Rated Power: 3.5mW
Thermal Time Constant: ≤3.2 seconds
Dissipation Constant: ≥0.7mW/°C
Operating Temperature Range: -40°C to 125°C
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Medical Varnished Wire Enamelled Wire Bead Type NTC Thermistor 10KOhm 3435


Medical Application Varnished Wire Enamelled Wire Bead Type NTC Thermistor 10KOhm 3435


PDF Specification File Download Link : MF51E Medical Application Varnished Wire Enamelled...


Overview


MF51E Medical Application Varnished Wire Enamelled Wire NTC Thermistors were specially designed for use in electronic thermometers which require better than average accuracy. The extremely small size allows the thermistor to respond very quickly to tiny changes in temperature. The MF51E can be supplied un-calibrated with standard tolerances or calibrated and grouped according to R at 37°C±0.01% for extreme interchangeability so as to eliminate the need for other calibrations.



Application


Electronic Thermometers
Medical Equipment and Patient Monitoring


Features


  • Small Size and fast response and light weight
  • Available tolerances: ±0.5%, ±1%, ±2%, ±3% and ±5%
  • B Value tolerances: ±0.5%, ±1.0% and ±2.0%
  • Resistance calibration available at 37°C ±0.01% (see table for details of grouping)
  • Long-term Stability and Reliability
  • Excellent Tolerance and Interchangeability
  • Available in all popular resistance values
  • Dissipation Constant ≥0.7mW/°C
  • Time Constant of ≤3.2 seconds
  • Rated Power: 3.5mW
  • Operating Temperature Range -40°C to 125°C

Specification


Part No.Nominal resistance
R 25℃
B Value
(R25/50℃)
Rated power
(mw)
Dissipation
(mW/℃)
Thermal time constant
(S)
Operating
temp.
(℃)
Range
(KΩ)
Tolerance
(%)
Nominal value
(K)
Tolerance
(%)
MF51E3270
MF51E3380
MF51E3470
MF51E3600
MF51E3950
MF51E4000
MF51E4050
MF51E4150
MF51E4300
MF51E4500
0.2-20
0.5-50
0.5-50
1-100
5-100
5-100
5-200
10-250
20-1000
20-1000

E+/-0.5

F+/-1

G+/-2

H+/-3

J+/-5

3270
3380
3470
3600
3950
4000
4050
4150
4300
4500

E+/-0.5

F+/-1

G+/-2

3.5

≥ 0.7


≤ 3.2
-40℃ - +125℃

Dimension (Unit:mm)


DimensionD maxL 1 maxL 1
+/- 3
L 2
+/- 1
d
+/- 0.05
Normal size1.64.010030.2
1.6Customer Specified

Resistance Calibration at 37†C +/- 0.005℃ of MF51E303E3950


R37℃=30.025KΩ±2.664% B30/45=3950K±0.5%


Category(KΩ)Category(KΩ)Category(KΩ)Category(KΩ)
129.275KΩ929.675 KΩ1730.075 KΩ2530.475 KΩ
229.325 KΩ1029.725 KΩ1830.125 KΩ2630.525 KΩ
329.375 KΩ1129.775 KΩ1930.175 KΩ2730.575 KΩ
429.425 KΩ1229.825 KΩ2030.225 KΩ2830.625 KΩ
529.475 KΩ1329.875 KΩ2130.275 KΩ2930.675 KΩ
629.525 KΩ1429.925 KΩ2230.325 KΩ3030.725 KΩ
729.575 KΩ1529.975 KΩ2330.375 KΩ3130.775 KΩ
829.625 KΩ1630.025 KΩ2430.425 KΩ3230.825 KΩ

Introduction of test and inspection equipments


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Name: High/Low-Thermal Shock Chamber

Function:test product withstand high/low-thermal shock chamber

Name : Constant temperature and humidity chamber

Function: test products storage state under steady damp and heat

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Name : Vibration testing equipment

Function : test the effect on product during transportation generated by vibration frequency and amplitude

Name : Salt spray test machine

Function: Test product resistance to oxidation,corrosion

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Name : Laser particle size analyzer

Function : Analyse material of laser particle size

Name : Vacum & high temperature dry oven

Function : high temperature aging test

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Name : Spectrum analyzer

Function : analyze harmful substance content of products

Name : Electrolytic thickness gauge

Function : Used for testing coating thickness of raw material

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Name : Constant temp oil bath instrument

Function : test ambient temperature at constant point resistance (tolerance ±0.002℃)

Name : Low Temperature precision test sink

Function : Test temperature at constant point resistance during -70℃~0℃ (tolerance ±0.01℃)

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Name : DC constant voltage and constant current power supply (high current)

Function : Test U-I Curve

Name : High precision thermistor sorter

Function : Test resistance of thermistor

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Name : Dissipation and thermal time constant testing instrument

Function : Test dissipation and thermal time constant

Name : NTC Impact tester

Function : Test impulse capacitance which products can endure

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Name : Withstand voltage test instrument

Function : Test insulation withstand voltage

Name : DC constant voltage power supply

Function : Test rated power consumption


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Name : Projector

Function : Test out appearance and inner structure

Name : Elongation rate instrument

Function : Test elongation rate of leads

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Name : Aging stage

Function : Test aging reliability of product



Reliability Test


Test ItemTest StandardTest methodPerformance requirements
Zero Power ResistanceIEC 60539-1Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance

Resistance tol ±1%


B valueIEC60539-1Immerse samples in the constant temperature bath at 25℃,50℃(or 85℃), test steady resistance,and calculate B value

Resistance tol ±1%


Free fall

IEC60068-2-32


Fall height: 1.5±0.1m,Surface: Cement , 1 time

No obvious damage, R25 △R/R≤±1%


Insulation

IEC60539-1


500V pressure on insulation shell test insulation resistance

>500MOhm


Withstand voltageIEC60539-1

Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec


No obvious damage


TensionIEC60068-2-21

Pull uniform speed at the end, F>4.0KG(requested by customer)


No obvious damage, R25 △R/R≤±1%


VibrationQ/HBm 108-94Test frequency: 10~500Hz,swing: 1.2mm acceleration: 30m/s2 Direction X,Y,Z Time:8Hour/direction

No obvious damage, R25 △R/R≤±1%


Steady humidity and heatIEC60068-2-78Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour

No obvious damage, R25 △R/R≤±1%


Thermal time constantEC60539-1Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time

<10 sec


High temperature storageIEC60068-2-2Temp:125℃±5℃ Time: 1000±24HourNo obvious damage, R25 △R/R≤±1%
Cold and thermal shockIEC60068-2-14

-40℃~+125℃ T1:30min Cycle time:1000


No obvious damage, R25 △R/R≤±1%


Knock experimentIEC60068-2-77

Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery time: 2 Hour


No obvious damage, R25 △R/R≤±1%


Low temperature storageIEC60068-2-1

Temp: 40±2℃ Time: 1000±24Hour


No obvious damage, R25 △R/R≤±1%


Salt sprayIEC60068-2-11Temp: 35±2℃ Collection hour : 1.0mL~2.0mL Time: determine per as actual demand

No obvious damage, R25 △R/R≤±1%




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