Changsha Purple Horn E-Commerce Co., Ltd.
| Resistance @ 25℃ | 8Ω |
| Power(Watts) | 3W |
| Pitch | 7.5mm |
| Operating Temperature | -40℃~170℃ |
| Tolerance | ±20% |
| B Constant (25℃/100℃) | - |
| Steady State Current (Max) | 3A |
| Thermal Time Constant | 47s |
| B Constant (25℃/85℃) | - |
| B Constant (25℃/75℃) | - |
| B Constant (25℃/50℃) | 2800K |
| B Constant Tolerance | ±10% |
| Description | NTC Thermistor 8Ω Through Hole,P=7.5mm |
| Mfr. Part # | MF72 8D11 |
| Package | Through Hole,P=7.5mm |
| Model Number | MF72 8D11 |
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Product Specification
| Resistance @ 25℃ | 8Ω | Power(Watts) | 3W |
| Pitch | 7.5mm | Operating Temperature | -40℃~170℃ |
| Tolerance | ±20% | B Constant (25℃/100℃) | - |
| Steady State Current (Max) | 3A | Thermal Time Constant | 47s |
| B Constant (25℃/85℃) | - | B Constant (25℃/75℃) | - |
| B Constant (25℃/50℃) | 2800K | B Constant Tolerance | ±10% |
| Description | NTC Thermistor 8Ω Through Hole,P=7.5mm | Mfr. Part # | MF72 8D11 |
| Package | Through Hole,P=7.5mm | Model Number | MF72 8D11 |
The Nanjing Shiheng Electronics Technology Co., Ltd. MF72 Series is a power type NTC thermistor designed for surge current suppression. This product offers reliable performance with a wide operating temperature range and is manufactured with high-quality materials. It is suitable for applications requiring effective inrush current limiting.
| Project | 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 | 8 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 0.5| / | No visible damage, R/R25% | | |||||
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Tinning coverage 95% | |||||
| Resistance to Soldering Heat | / | Solder pot temperature: 2605, immersion depth 6mm from the body, time 101 sec | / | R/R25% | |||||
| Steady State Damp Heat | / | Temperature: 402, Humidity: 932%, Time: 1000 hours | / | R/R25% | |||||
| Temperature Rapid Change | / | -40 30min 25 5min 170 30min 25 5min, repeated 5 times | / | R/R25% | |||||
| High Temperature Storage | / | Temperature: 1705, Time: 1000 hours | / | R/R25% | |||||
| Max Steady Current Durability | / | Continuous application of maximum steady current at room temperature for 100024h | / | R/R25% | |||||
| Max Capacitance Endurance | / | Apply maximum allowable capacitance, intermittently close for 50ms, open for 5 times the thermal time constant per cycle, apply 1000 cycles. | / | R/R25% | |||||
| 3. Usage Precautions | |||||||||
| Product Purpose | / | Inrush current suppression | / | / | |||||
| Soldering Iron Welding | / | Welding point at least 2mm from the coating layer, welding temperature below 360, welding time < 3 seconds | / | / | |||||
| Storage Temperature | / | -1040 | / | / | |||||
| Storage Humidity | / | 75% RH | / | / | |||||
| Storage Environment | / | Avoid storage in environments with corrosive gases and direct sunlight | / | / | |||||
| Packaging | / | Reseal and store after opening the package | / | / | |||||
| Storage Period | / | 1 year | / | / | |||||
| 5. Outline Dimensions (Unit: mm) | |||||||||
| Model | D | L1 | L2 | F1 | F2 | T | d | Max | Min |
| MF72 | Max 13.0 | 17 2 | 7.5 1 | 5 1.5 | Max 5.5 | 0.8 0.05 | / | / | |
| 6. Product Model Description | |||||||||
| MF72 | |||||||||
| Brand | Shiheng | / | / | ||||||
| Series | MF72: Power Type NTC Thermistor | / | / | ||||||
| Resistance | 8: Zero-power resistance at 25 is 8 | / | / | ||||||
| Diameter | 11: Body diameter D11 | / | / | ||||||
Contact Information:
Nanjing Shiheng Electronics Technology Co., Ltd.
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing City, 211121
TEL: 025-52121868
FAX: 025-52122373
Http: //www.shiheng.com.cn
E-MAIL: sales@shiheng.com.cn
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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