Product Overview
The MF72 series of power-type NTC thermistors from Nanjing Shiheng Electronics Technology Co., Ltd. are designed for surge current suppression. These components offer reliable performance with a wide operating temperature range and are manufactured with high-quality materials. They are suitable for applications requiring inrush current limiting and are available with various certifications, including UL and TUV.
Product Attributes
- Brand: Shiheng
- Product Type: Power Type NTC Thermistor
- Model Series: MF72
- Encapsulation Material: Black Epoxy Resin
- Lead Material: Tinned Copper Wire
- Origin: Nanjing, China
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC Safety (CQC04001010556), UL (E241319), Jiangsu High-tech Product Certification, TUV (R50245892)
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| 1. Electrical Characteristics | ||||
| Zero-power resistance at 25 | R25 | Ta=250.5, Test Power 0.1mW, Tested in air | 3020% | |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 300010% |
| Max. Steady State Current | I max | A | 1.5 | |
| Max. Allowable Capacitance | CT | 240Vac | F | 220 |
| Dissipation Factor | mW/ | 15 | ||
| Thermal Time Constant | sec | 52 | ||
| Withstand Voltage | 500V/AC, 1min | No breakdown or flashover | ||
| Insulation Resistance | 500V/DC, 1min | M | 500 | |
| Operating Temperature Range | -40 ~ 170 | |||
| Max. Rated Power | Pmax | W | 3 | |
| Resistance-Temperature Curve | See Figure 1 | |||
| Volt-Ampere Curve | See Figure 2 | |||
| 2. Reliability | ||||
| Lead Strength | Pull force: 10N (for 0.5| | No visible damage, R/R25% | | |
| Solderability | Temperature 2455, Time 2-3 sec | 95% tinning area | ||
| Resistance to Soldering Heat | Solder pot temperature: 2605, Immersion depth 6mm from body, Time 101 sec | R/R25% | ||
| Steady State Damp Heat | Temperature: 402, Humidity: 932%, Time: 1000 hours | R/R25% | ||
| Temperature Cycling | -40 30min 25 5min 170 30min 25 5min, 5 cycles | R/R25% | ||
| High Temperature Storage | Temperature: 1705, Time: 1000 hours | R/R25% | ||
| Max. Steady State Current Endurance | Applied max. steady state current at room temperature for 100024h | R/R25% | ||
| Max. Capacitance Endurance | Applied max. allowable capacitance, 50ms on, 5 times thermal time constant off, 1000 cycles | R/R25% | ||
| 3. Usage Precautions | ||||
| Product Purpose | Surge current suppression | |||
| Soldering | Distance from coating: 2mm, Temperature: <360, Time: <3 sec | |||
| Storage Temperature | -10 ~ 40 | |||
| Storage Humidity | % RH | 75% | ||
| Storage Environment | Avoid corrosive gases and direct sunlight | |||
| Packaging | Reseal after opening | |||
| Shelf Life | Year | 1 | ||
| 4. Derating Curve | ||||
| See Figure 4 | ||||
| 5. Outline Dimensions (Unit: mm) | ||||
| D | Max | 13.0 | ||
| L1 | Min | 17 | ||
| L2 | 82 | |||
| F1 | 7.51 | |||
| F2 | 51.5 | |||
| T | Max | 5.5 | ||
| d | 0.80.05 | |||
| 6. Product Model Description | ||||
| MF72 | Shiheng Brand, MF72: Power Type NTC Thermistor, 30: Zero-power resistance at 25 is 30, 11: Body diameter D11 | |||
| 7. Certifications | ||||
| Quality Management System | ISO9001:2008 (01115Q20270R5M), ISO/TS16949:2009 (0192416) | |||
| Environmental Management System | ISO14001:2004 (01113E20060R2M) | |||
| Environmental Test Report | RoHS | |||
| Safety Certification | CQC (CQC04001010556), UL (E241319) | |||
| Regional Certification | Jiangsu High-tech Product Certification (070115G0254N) | |||
| International Certification | TUV (R50245892) | |||
Contact Information:
Nanjing Shiheng Electronics Technology Co., Ltd.
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing, 211121, China
TEL: 025-52121868
FAX: 025-52122373
Http: //www.shiheng.com.cn
E-MAIL: sales@shiheng.com.cn
1810170728_Nanjing-Shiheng-Elec-MF72-30D11_C72688.pdf
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