Guangdong Uchi Electronics Co.,Ltd
| Payment Terms | T/T, Western Union, MoneyGram |
| Supply Ability | 10 Million Piece Per Year |
| Delivery Time | 2 weeks |
| Packaging Details | Bulk |
| Type | MF59 MELF NTC Thermistor |
| R25 Range | 0.1K～1KK |
| Application | Automatic work facilities , Digital equipment ,Rechargeable battery |
| R25 Tolerance | ±1％,±2％,±3％,±5％,±10％ |
| Beta Value Tolerance | ±0.5％,±1％ |
| Dissipation factor | Model A ≥2mW/℃(in still air),Model B ≥1mW/℃(in still air) |
| Thermal time constant | Model A ≤10sec(in still air),Model B ≤5sec(in still air) |
| Operating temperature range | -55~+220℃ |
| Rated power at 25℃ | Model A ≤10mW, Model B ≤5mW |
| Dimension | MF59A 3.6*1.5mm；MF59B 1.8*1.1mm |
| Brand Name | SHIHENG |
| Model Number | MF59 |
| Certification | CQC,ROHS |
| Place of Origin | CHINA |
View Detail Information
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Product Specification
| Payment Terms | T/T, Western Union, MoneyGram | Supply Ability | 10 Million Piece Per Year |
| Delivery Time | 2 weeks | Packaging Details | Bulk |
| Type | MF59 MELF NTC Thermistor | R25 Range | 0.1K～1KK |
| Application | Automatic work facilities , Digital equipment ,Rechargeable battery | R25 Tolerance | ±1％,±2％,±3％,±5％,±10％ |
| Beta Value Tolerance | ±0.5％,±1％ | Dissipation factor | Model A ≥2mW/℃(in still air),Model B ≥1mW/℃(in still air) |
| Thermal time constant | Model A ≤10sec(in still air),Model B ≤5sec(in still air) | Operating temperature range | -55~+220℃ |
| Rated power at 25℃ | Model A ≤10mW, Model B ≤5mW | Dimension | MF59A 3.6*1.5mm；MF59B 1.8*1.1mm |
| Brand Name | SHIHENG | Model Number | MF59 |
| Certification | CQC,ROHS | Place of Origin | CHINA |
| High Light | ntc temperature sensor ，power ntc thermistor | ||
Newest MF59 MELF Glass Encapsulation SMD NTC Thermistor 10KOHM 3950
R25(Ohm):0.1K～1KK
Dimensional Drawing Unit :mm
| Type | Length L (mm) | Diameter D (mm) |
| MF59A | 3.6±0.2 | 1.5±0.2 |
| MF59B | 1.8±0.2 | 1.1±0.2 |
Sensing element-NTC thermistor used
Workshop of high quality and high performance NTC Thermistor
We have the unique process and leader core technology with proprietary intellectual property rights of ceramic powder equipment,made of chips,high performance NTC Automatic batch production.
We have more than 12 series of high performance NTC thermistors automatic production line,products have the advantages of large production,high quality,good coherence,high reliability,besides it can be made of many kinds of NTC temperature sensors,it also can be supplied to other factories of NTC sensors,and exported in large quantities to overseas.
| |
NTC Temperature sensor -- a glance at workshop
Advantages and characteristics of Auto Temperature Sensor
(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%
|
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2006
Total Annual:
1,500,000-2,500,000
Employee Number:
138~168
Ecer Certification：
Verified Supplier
Uchi was established in 2006 in Dongguan, China. After years of development, Uchi has become a large scale hi-tech enterprise that specialized in development and production of complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL TYPE),Resistor、integrated circuit 、 Capacitor, ... Uchi was established in 2006 in Dongguan, China. After years of development, Uchi has become a large scale hi-tech enterprise that specialized in development and production of complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL TYPE),Resistor、integrated circuit 、 Capacitor, ...
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