MF51E Epoxy Resin Package NTC Power Thermistor 10KOhm 3435
Brand Name:SHIHENG
Certification:UL CQC
Model Number:MF51E
Minimum Order Quantity:1000PCS
Delivery Time:2 weeks
Payment Terms:T/T, Western Union, MoneyGram,Paypal
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Location:
Dongguan Guangdong China
Address:
Room 810, Unit 2, Building 5, Huixing Commercial Center, Dongsheng Road No.1, Zhongshan Dong, Shilong Town Dongguan, GUANGDONG, 523326 CN
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Product Details
UL CQC MF51E 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)
| Dimension | D max | L 1 max | L 1 +/- 3 | L 2 +/- 1 | d +/- 0.05 |
| Normal size | 1.6 | 4.0 | 100 | 3 | 0.2 |
| 1.6 | Customer 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) |
| 1 | 29.275KΩ | 9 | 29.675 KΩ | 17 | 30.075 KΩ | 25 | 30.475 KΩ |
| 2 | 29.325 KΩ | 10 | 29.725 KΩ | 18 | 30.125 KΩ | 26 | 30.525 KΩ |
| 3 | 29.375 KΩ | 11 | 29.775 KΩ | 19 | 30.175 KΩ | 27 | 30.575 KΩ |
| 4 | 29.425 KΩ | 12 | 29.825 KΩ | 20 | 30.225 KΩ | 28 | 30.625 KΩ |
| 5 | 29.475 KΩ | 13 | 29.875 KΩ | 21 | 30.275 KΩ | 29 | 30.675 KΩ |
| 6 | 29.525 KΩ | 14 | 29.925 KΩ | 22 | 30.325 KΩ | 30 | 30.725 KΩ |
| 7 | 29.575 KΩ | 15 | 29.975 KΩ | 23 | 30.375 KΩ | 31 | 30.775 KΩ |
| 8 | 29.625 KΩ | 16 | 30.025 KΩ | 24 | 30.425 KΩ | 32 | 30.825 KΩ |
Introduction of test and inspection equipments
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 |
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 |
Name : Laser particle size analyzer Function : Analyse material of laser particle size | Name : Vacum & high temperature dry oven Function : high temperature aging test |
Name : Spectrum analyzer Function : analyze harmful substance content of products | Name : Electrolytic thickness gauge Function : Used for testing coating thickness of raw material |
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℃) |
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 |
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 |
Name : Withstand voltage test instrument Function : Test insulation withstand voltage | Name : DC constant voltage power supply Function : Test rated power consumption |
Name : Projector Function : Test out appearance and inner structure | Name : Elongation rate instrument Function : Test elongation rate of leads |
Name : Aging stage Function : Test aging reliability of product |
Reliability Test
| Test Item | Test Standard | Test method | Performance requirements |
| Zero Power Resistance | IEC 60539-1 | Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance | Resistance tol ±1% |
| B value | IEC60539-1 | Immerse 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 voltage | IEC60539-1 | Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec | No obvious damage |
| Tension | IEC60068-2-21 | Pull uniform speed at the end, F>4.0KG(requested by customer) | No obvious damage, R25 △R/R≤±1% |
| Vibration | Q/HBm 108-94 | Test 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 heat | IEC60068-2-78 | Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour | No obvious damage, R25 △R/R≤±1% |
| Thermal time constant | EC60539-1 | Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time | <10 sec |
| High temperature storage | IEC60068-2-2 | Temp:125℃±5℃ Time: 1000±24Hour | No obvious damage, R25 △R/R≤±1% |
| Cold and thermal shock | IEC60068-2-14 | -40℃~+125℃ T1:30min Cycle time:1000 | No obvious damage, R25 △R/R≤±1% |
| Knock experiment | IEC60068-2-77 | Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery time: 2 Hour | No obvious damage, R25 △R/R≤±1% |
| Low temperature storage | IEC60068-2-1 | Temp: 40±2℃ Time: 1000±24Hour | No obvious damage, R25 △R/R≤±1% |
| Salt spray | IEC60068-2-11 | Temp: 35±2℃ Collection hour : 1.0mL~2.0mL Time: determine per as actual demand | No obvious damage, R25 △R/R≤±1% |
MF51E Epoxy Resin Package NTC Power Thermistor 10KOhm 3435
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