Product Overview
The MF11 series of compensated NTC thermistors, manufactured by Nanjing Shiheng Electronics Technology Co., Ltd., are designed for temperature measurement and control applications. These components feature a 5K resistance at 25 with a B value of 3950K, ensuring accurate thermal sensing. The thermistors are constructed with an epoxy resin encapsulation and tinned copper-clad steel leads, offering a wide operating temperature range from -30 to 125. They are suitable for various industrial and electronic applications requiring precise temperature monitoring.
Product Attributes
- Brand: Shiheng
- Product Name: Compensated NTC Thermistor
- Model Series: MF11
- Encapsulation Material: Epoxy Resin
- Lead Material: Tinned Copper-Clad Steel Wire
- Body Color: Green
- Marking Color: Black
- Origin: Nanjing, China
- Certifications: ISO9001:2008, ISO14001:2004, ROSH, CQC, UL (E240991), TUV (R50245892)
Technical Specifications
General Electrical Performance:
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.1, Test Power 0.1mW | K | 5K10% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 395010% |
| Dissipation Factor | In still air | mW/ | Approx. 4.5 | |
| Time Constant | In still air | sec | Approx. 20 | |
| Insulation Resistance | / | 1000V/DC, 1min | M | 500 |
| Operating Temperature Range | / | / | -30 ~ 125 | |
| Max. Rated Power | Pmax | / | mW | 450 |
Reliability Tests:
| Item | Test Condition & Method | Technical Requirement |
|---|---|---|
| Lead Strength | Tensile Force: Wire Diameter (mm) 0.35<d0.5: 5N; 0.5<d0.8: 10N. Time: 101 sec. No visible damage. | R25 R/R 3% |
| Solderability | Temperature 2455, Time 2-3 sec. | Tinning Area 95% |
| Resistance to Soldering Heat | Solder Pot Temperature: 2605, Immersion Depth 6mm from body, Time 51 sec. | R25 R/R 3% |
| Steady State Damp Heat | Temperature: 402, Humidity: 932%, Time: 500 hours. | R25 R/R 3% |
| Temperature Cycling | -30 30min 25 5min 125 30min 25 5min, 5 cycles. | R25 R/R 3% |
| High Temperature Storage | Temperature: 1255, Time: 1000 hours. | R25 R/R 5% |
| Low Temperature Storage | Temperature: -305, Time: 1000 hours. | R25 R/R 5% |
Product Model Description:
MF11 502 K
- MF11: Compensated NTC Thermistor
- 502: Zero-power resistance at 25 is 5K
- K: Resistance Tolerance Code (J-5%, K-10%, M-20%)
Usage Precautions:
- Product Application: Temperature measurement and control.
- Soldering: Distance from coating 2mm, Temperature < 360, Time < 3 sec.
- Storage Temperature: -10 ~ 40.
- Storage Humidity: 75% RH.
- Environment: Avoid storage in environments with corrosive gases and direct light.
- Packaging: Reseal after opening.
Contact Information:
Nanjing Shiheng Electronics Technology Co., Ltd.
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing, China
Postal Code: 211121
TEL: 025-52121868
FAX: 025-52122373
Http: //www.shiheng.com.cn
E-MAIL: sales@shiheng.com.cn
1810161324_Nanjing-Shiheng-Elec-MF11-502K_C123355.pdf
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