Product Overview
The MF72 Series Power Type NTC Thermistor from Nanjing Shiheng Electronics Technology Co., Ltd. is designed for surge current suppression. This component offers reliable performance with a wide operating temperature range and is suitable for various industrial applications requiring protection against inrush currents. It is manufactured with high-quality materials and adheres to strict quality standards.
Product Attributes
- Brand: Shiheng
- Product Name: MF72 Power Type NTC Thermistor
- Origin: Nanjing, China
- Encapsulation Material: Black Silicone Resin
- Lead Material: Tinned Copper Wire
- Certifications: UL:E241319
Technical Specifications
| Electrical Characteristics | Symbol | Test Conditions | Unit | Performance Requirements |
| Zero-power resistance at 25 | R25 | Ta=250.5, Test power 0.1mW, Tested in air | | 5 20% |
| B value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 3000 10% |
| Maximum steady current | I max | | A | 6 |
| Maximum allowable capacitance | CT | 240Vac | F | 470 |
| Dissipation factor | | | mW/ | 20 |
| Thermal time constant | | | sec | 76 |
| Withstand voltage | | 500V/AC, 1min | | No breakdown or arcing |
| Insulation resistance | | 500V/DC, 1min | M | 500 |
| Operating temperature range | | | | -40 ~ 200 |
| Maximum rated power | Pmax | | W | 5 |
| Resistance-Temperature Curve | | | | See Figure 1 |
| Volt-Ampere Curve | | | | See Figure 2 |
| Reliability | Test Conditions & Method | Technical Requirements |
| Lead strength | Tensile force: | 0.5 | No visible damage, R/R25% | |
| |
| Solderability | Temperature 2455, Time 2-3 sec | Tinning area 95% |
| Resistance to soldering heat | Solder pot temperature: 2605, Immersion depth 6mm from resistor body, Time 101 sec | R/R25% |
| Steady damp heat | Temperature: 402, Humidity: 932%, Time: 1000 hours | R/R25% |
| Temperature rapid change | -40 30min 25 5min 200 30min 25 5min, Repeated 5 times | R/R25% |
| High temperature storage | Temperature: 2005, Time: 1000 hours | R/R25% |
| Maximum steady current endurance | Continuously apply maximum steady current to thermistor at room temperature for 100024h | R/R25% |
| Maximum capacitance endurance | Apply maximum allowable capacitance, intermittently close for 50ms, open for 5 times the thermal time constant, apply 1000 cycles to the thermistor. | R/R25% |
| Model | D (mm) | L1 (mm) | L2 (mm) | F1 (mm) | F2 (mm) | T (mm) | d (mm) |
| MF72-5D15 | Max17.5 Min17 | 52 | 7.51 | 51.5 | Max6.0 | 0.80.05 | 0.80.05 |
| Product Model Description | Explanation |
| MF72 5 D 15 | Shiheng Brand MF72: Power Type NTC Thermistor 5: Zero-power resistance at 25 is 5 15: Body diameter D15 |
Usage Precautions
- Product Purpose: Surge current suppression.
- Soldering: When soldering with a soldering iron, the soldering point should be at least 2mm away from the coating layer. Soldering temperature should be below 360, and soldering time should be less than 3 seconds.
- Storage Temperature: -10 to 40.
- Storage Humidity: 75% RH.
- Storage Environment: Avoid storage in environments with corrosive gases and direct sunlight.
- Packaging: Reseal and store after opening the package.
- Shelf Life: 1 year.
Manufacturer: Nanjing Shiheng Electronics Technology Co., Ltd.
Address: No. 18 Jinyang Road, Hushui Town, Jiangning District, Nanjing, 211121, China
Tel: 025-52121868
Fax: 025-52122373
Website: Http://www.shiheng.com.cn
Email: sales@shiheng.com.cn
