MF54 Plastic Package Diode Temperature Measurement NTC Thermistor
R25(Ω):0.1K～1KK
Application:Automotive electronics, office equipments, rechargeable
battery.
PDF Specification PDF format : MF54
Plastic Package Diode Temperature Measurement...
1. Characteristics
High precision, good steady,wide resistance.
Small size,Fast response,High sensitivity
Mass production,low cost
Axial leads as diode,convenient for AI automatic install
2.Application
Automobile electricity (auto air-conditioner and refrigeration
etc.)
Office equipment (computer,print machine etc.)
Rechargeable battery (lithium battery,ni-mh battery)
3.Main parameters
Resistance range : 0.1~1000 KOhm
R25 Tolerance : ±1％,±2％,±5％,±5％,±10％
B value tolerance : ±0.5％,±1％
Dissipation factor : model ≥5mW/℃ in still air
Thermal time constant : ≤20sec in still air
Rated power at 25℃ : ≤25mW
4.Dimension (mm)
5.Part numbering
① ② ③ ④ ⑤
① Type : MF54 Plastic Package Diode Temperature Measurement NTC
Thermistor
② Rated zero power resistance: 103-10K Ohm
③ Resistance tolerance : F - ±1％, G - ±2％, H - ±3％, J - ±5％, K -
±10％
④ B value : namely 3950K
⑤ B value tolerance : E: ±0.5％ , F : ±1％, G : ±2％
Advantages and characteristics of Auto Temperature Sensor
- We have the heart of NTC temperature sensor--full sets of
production line and core technology of pro-prietary intellectual
property rights for high performance temperature measurement NTC thermistor.
- We have all kinds of NTC core element of NTC Temperature
sensor--high performance temperature measurement thermistors are
own production,complete series,structural diversity. Our products
can meet the requirements of prevision measurement in different
temperature area from low temperature,medium and low temperature to
medium-high temperature.These products have passed many safety
certifications of domestic and foreign.
- Resistance and temperature characteristics can meet customer's
requirements entirely,and support best convenience to customers.
- Mature manufacturing technique of NTC temperature
sensor,Large-scale mass production,product have the best ability of
insulation sealing,Mechanical collision,resistance to
bending,well-set.
- Small thermal time,fast response
- Multi category,complete series,many kinds of housing he
configuration,easy to assemble
- We have high lavel inspection equipments which carrry out strict
and normative inspection process.
- Our products with high precision,high reliability,high
stability,high interchangeable,high commonality are advanced in
industry.
(Highest tolerance can be reach ±0.02℃) (Years of drif rate ≤1‰)
Operating temperature and environment of NTC temperature sensor
depend on specific performance of its core element and lead wire:
►Different NTC thermistor using in the NTC temperature sensors with
the following different operating temperature:
Chip or MF52A,MF51E,MF55: temperature resist grade 125℃,actual
temperature resist grade 150℃
MF58: temperature resist grade 200℃,actual temperature resist grade
250℃
MF51: temperature resist grade 200℃,actual temperature resist grade
250℃
Special MF51: temperature resist grade 250℃,actual temperature
resist grade 300℃
Weldless chip:temperature resist grade 450℃,actual temperature
resist grade 500℃
►Operating environment
In the environment of high temperature,high humidty and high
corrosion,we suggest to use glass sealed type thermistor as the
core element.And MF51 type will be the best NTC thermistor in high
humidity environment.
►Design considerations and procedure of temperature sensor:
1. Choose the shape acoording to customer's design or assemble
requirements, and confirm the thermistor.
2. Confirm the thermistor element and other materials according to
customers' requirement
3. Choose the suitable resistance,B value and tolerance
4. Choose suitable moisture-proof and insulation technology to meet
customer's requirement
5. Choose suitable encapsulation structure to meet performance
requirements of mechanical shock resistance
6. Meet customer's special requirements.
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%
|
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 : 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 : Overload aging test machine Function : Electricity aging test of temp measurement products | Name : Chemical experiment table Function : Chemical blending |
 | Name : Aging stage Function : Test aging reliability of product |
