Changsha Purple Horn E-Commerce Co., Ltd.
| Resistance @ 25℃ | 1Ω |
| Power(Watts) | 7W |
| Pitch | 10mm |
| Operating Temperature | -40℃~200℃ |
| Tolerance | ±20% |
| B Constant (25℃/100℃) | - |
| Steady State Current (Max) | 20A |
| Thermal Time Constant | 2.17min |
| B Constant (25℃/85℃) | - |
| B Constant (25℃/75℃) | - |
| B Constant (25℃/50℃) | 2600K |
| B Constant Tolerance | ±10% |
| Description | NTC Thermistor 1Ω Through Hole,P=10mm |
| Mfr. Part # | MF73T-1 1/20 |
| Package | Through Hole,P=10mm |
| Model Number | MF73T-1 1/20 |
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Product Specification
| Resistance @ 25℃ | 1Ω | Power(Watts) | 7W |
| Pitch | 10mm | Operating Temperature | -40℃~200℃ |
| Tolerance | ±20% | B Constant (25℃/100℃) | - |
| Steady State Current (Max) | 20A | Thermal Time Constant | 2.17min |
| B Constant (25℃/85℃) | - | B Constant (25℃/75℃) | - |
| B Constant (25℃/50℃) | 2600K | B Constant Tolerance | ±10% |
| Description | NTC Thermistor 1Ω Through Hole,P=10mm | Mfr. Part # | MF73T-1 1/20 |
| Package | Through Hole,P=10mm | Model Number | MF73T-1 1/20 |
The MF73T-1 series NTC thermistors, manufactured by Nanjing Shiheng Electronics Technology Co., Ltd., are high-power type components designed for surge current suppression. These thermistors offer reliable performance across a wide operating temperature range and are suitable for various industrial applications requiring effective inrush current limiting.
| Item | Symbol | Test Conditions | Unit | Performance Requirement | |
|---|---|---|---|---|---|
| 1. Electrical Characteristics | |||||
| Zero-power resistance at 25 | R25 | Ta=250.5, Test Power 0.1mW, Tested in air | 120% | ||
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 260010% | |
| Max. Steady State Current | I max | A | 20 | ||
| Max. Allowable Capacitance | CT | 240Vac | F | 2200 | |
| Dissipation Factor | mW/ | Approx. 30 | |||
| Thermal Time Constant | sec | Approx. 130 | |||
| Withstand Voltage | 500V/AC, 1min | No breakdown or flashover | |||
| Insulation Resistance | 500V/DC, 1min | M | 500 | ||
| Operating Temperature Range | -40 ~ 200 | ||||
| Max. Rated Power | Pmax | As shown in the figure | W | 7 | |
| 2. Reliability | |||||
| Lead Wire Strength | Tensile Force: 10N (0.5| | No visible damage, R/R25% | | ||
| Solderability | Temperature: 2455, Time: 2-3 sec | 95% tinned area | |||
| Resistance to Soldering Heat | Solder pot temperature: 2605, Immersion depth 6mm from thermistor body, Time: 101 sec | R/R25% | |||
| Damp Heat (Steady State) | Temperature: 402, Humidity: 932%, Time: 1000 hours | R/R25% | |||
| Rapid Temperature Change | -40 for 30min 25 for 5min 200 for 30min 25 for 5min, repeated 5 times | R/R25% | |||
| High Temperature Storage | Temperature: 2005, Time: 1000 hours | R/R25% | |||
| Max. Steady State Current Endurance | Continuous application of max. steady state current at room temperature for 100024h | R/R25% | |||
| Max. Capacitance Endurance | Apply max. allowable capacitance, intermittently close for 50ms and open for 5 times the thermal time constant, apply 1000 cycles to the thermistor. | R/R25% | |||
| 3. Usage Precautions | |||||
| Product Purpose | Surge current suppression | ||||
| Soldering Iron Welding | Welding point at least 2mm from 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 | ||||
| Repackaging | Reseal after opening package | ||||
| Storage Period | 1 year | ||||
| 5. Outline Dimensions (Unit: mm) | |||||
| D | L | F | T | d | |
| Max 29 | Min 25 | 10.01 | Max 8.0 | 1.00.05 | |
| 6. Product Model Description | |||||
| MF73T-1 / 1 / 20 | |||||
| Description | : Shiheng Brand | : MF73T-1: High-power type NTC thermistor | : 1: Zero-power resistance at 25 is 1 | : 20: Max. steady state current is 20A | |
| Model Example: MF73T-1-1/20 | |||||
| Contact Information: | |||||
| Company: | Nanjing Shiheng Electronics Technology Co., Ltd. | ||||
| Address: | No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing City, China | ||||
| Postal Code: | 211121 | ||||
| Tel: | 025-52121868 | ||||
| Fax: | 025-52122373 | ||||
| E-MAIL: | sales@shiheng.com.cn | ||||
| Website: | Http://www.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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