surge current suppression using Nanjing Shiheng Elec MF72 10D11 power type NTC thermistor with wide temperature range
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Product Description
Product Overview
The MF72 Power Type NTC Thermistor, manufactured by Nanjing Shiheng Electronics Technology Co., Ltd., is designed for surge current suppression. This product offers reliable performance within a wide operating temperature range of -40C to 170C. It is suitable for applications requiring effective inrush current limiting and is manufactured with quality management certifications including ISO9001:2008, ISO/TS16949:2009, and ISO14001:2004.
Product Attributes
- Brand: Shiheng ()
- Product Type: Power Type NTC Thermistor
- Origin: Nanjing, China
- Encapsulation Material: Black Silicone Resin
- Lead Material: Tinned Copper Wire
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC Safety Certification, Jiangsu High-tech Product Certification, TUV, UL (E241319)
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Performance Requirement |
|---|---|---|---|---|
| 1. Electrical Performance | ||||
| Zero-power resistance at 25 | R25 | Ta=250.5, Test Power 0.1mW, Tested in air | 10 20% | |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 2800 10% |
| Maximum Steady Current | I max | A | 3 | |
| Maximum Allowable Capacitance | CT | 240Vac | F | 220 |
| Dissipation Factor | mW/ | 14 | ||
| Thermal Time Constant | sec | 47 | ||
| Withstand Voltage | 500V/AC, 1min | No breakdown or arcing | ||
| Insulation Resistance | 500V/DC, 1min | M | 500 | |
| Operating Temperature Range | -40 ~ 170 | |||
| Maximum Rated Power | Pmax | W | 3 | |
| Resistance-Temperature Curve | See Figure 1 | |||
| Volt-Ampere Curve | See Figure 2 | |||
| 2. Reliability | ||||
| Lead Strength | Tension: 101 sec, for wire diameter (mm): 0.5<d0.8 (10N), 0.8<d1.25 (20N) | 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% | ||
| Rapid Change of Temperature | -40 30min25 5min170 30min25 5min, 5 cycles | R/R25% | ||
| High Temperature Storage | Temperature: 1705, Time: 1000 hours | R/R25% | ||
| Maximum Steady Current Endurance | Continuous application of maximum steady current at room temperature, 100024h | R/R25% | ||
| Maximum Capacitance Endurance | Apply maximum allowable capacitance, intermittently close 50ms, open 5 times the thermal time constant for one cycle, apply 1000 cycles to the thermistor. | R/R25% | ||
| 3. Usage Precautions | ||||
| Product Purpose | Surge current suppression | |||
| Soldering (Soldering Iron) | Welding point at least 2mm from coating layer, welding temperature <360, welding time <3 sec | |||
| Storage Temperature | -10 ~ 40 | |||
| Storage Humidity | % RH | 75% | ||
| Storage Environment | Avoid storage in environments with corrosive gases and direct sunlight | |||
| Packaging | Reseal after opening | |||
| Shelf Life | Year | 1 | ||
| 4. Derating Curve | ||||
| (Information not detailed in provided text) | ||||
| 5. Outline Dimensions (Unit: mm) | ||||
| D | L | L1 | L2 | F |
| Max 13.0 | Min 17 | 8 2 | 7.5 1 | 5 1.5 |
| T | d | |||
| Max 5.5 | 0.8 0.05 | |||
| 6. Product Model Description | ||||
| MF72 | 10 | D | 11 | |
| Shiheng Brand | MF72: Power Type NTC Thermistor | 10: Zero-power resistance at 25 is 10 | 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) | |||
| High-tech Product Certification | Jiangsu Province (070115G0254N) | |||
| TUV Certification | (R50245892) | |||
| UL Certification | (E241319) | |||
Contact Information:
Nanjing Shiheng Electronics Technology Co., Ltd.
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing City, 211121, China
TEL: 025-52121868
FAX: 025-52122373
E-MAIL: sales@shiheng.com.cn
Http: //www.shiheng.com.cn
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