Nanjing Shiheng Electronics Co., Ltd. - MF72 Power NTC Thermistor Series
The MF72 series from Nanjing Shiheng Electronics Co., Ltd. are Power NTC Thermistors designed for current limiting applications. These thermistors utilize a silicone resin encapsulation, offering high temperature resistance (up to 300C), rapid heat dissipation, and excellent insulation properties, making them an optimal choice for power NTC thermistors. The product is certified with various international standards, ensuring quality and reliability for industrial applications.
Product Attributes
- Brand: Shiheng
- Product Series: MF72 Power NTC Thermistor
- Encapsulation Material: Green Silicone Resin
- Certifications: ISO9001:2015, IATF16949:2016, ISO14001:2015, RoHS 2.0, CQC (CQC04001010556), TUV (R50245892), UL (E241319), High-tech product certificate in Jiangsu Province
- Origin: Nanjing, China
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Requirement |
|---|---|---|---|---|
| Zero Power Resistance at 25 | R25 | Ta=250.5 (Test Power 0.1mW, in air) | 1020% | |
| B-value (B25/50) | B25/50 | Ta=250.01, Tb=500.01 | K | 260010% |
| Max steady current | I max | A | 0.7 | |
| Max allowable capacity value | CT | 240Vac | F | 100 |
| Thermal dissipation Coefficient | In still air | mW/ | 6 | |
| Thermal time constant | In still air | sec | 20 | |
| Withstand voltage | 500V/AC 1min | No breakthrough and flash over | ||
| Insulation resistance | 500V/DC 1min | M | 500 | |
| Operating temperature range | -40 ~ 150 | |||
| Maximum rated power | Pmax | W | 0.5 | |
| Model: MF72 10D5 | Dimensions (mm): | D (Max) | L1 (Max) | L2 (0.5) |
| 6.0 | 3.5 | 2.5 | ||
| F (0.5) | T (Max) | d (0.05) | ||
| 2.5 | 2.5 | 0.45 |
Installation & Use Precautions
- Purpose: Current limitation.
- Soldering: Welding spot should be at least 2mm from the head. Welding temperature should be below 360, with a time of less than 3 seconds.
- Storage Temperature: -1040.
- Storage Humidity: 75% RH.
- Storage Environment: Avoid storage in environments with corrosive gases and illumination.
- Shelf Life: Packaging needs to be resealed after opening. Storage period is 1 year. After the valid period, re-inspection according to standard specifications is allowed, and the product can still be used if it meets the requirements.
Product Packaging
- Packing Type: Bulk Type (Self sealing bag: WH11mm12mm)
- Reel Packing Box: WGH335mm240mm50mm
Material Description
The silicone resin encapsulation coating is chosen for its high temperature resistance (up to 300C above), fast heat dissipation, and good insulation. While the silicone resin surface is rough for heat dissipation and may show friction marks from product contact (which do not affect performance and can be wiped off), and the material is firm but brittle, leading to potential cracks at the pins under improper external force (which also do not affect performance or reliability), customers can use the product with confidence.
2410121635_Nanjing-Shiheng-Elec-MF72-10D5-3-5_C18197893.pdf
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