Product Overview
The MF72 Series Power Type NTC Thermistor from Nanjing Shiheng Electronics Technology Co., Ltd. is designed to suppress inrush current. This component offers reliable performance and is suitable for various industrial applications. The product specifications, testing conditions, and usage requirements are detailed in this document for customer confirmation.
Product Attributes
- Brand: Shiheng ()
- Product Name: MF72 Power Type NTC Thermistor
- Origin: Nanjing, China
- Encapsulation Material: Black Phenolic Resin
- Lead Material: Tinned Copper Wire
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC Safety Certification, Jiangsu Province High-tech Product Certification, TUV
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Performance Requirements |
|---|---|---|---|---|
| 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 | 2600 10% |
| Maximum Steady Current | I max | / | A | 0.7 |
| Maximum Allowable Capacitance | CT | 240Vac | F | 47 |
| Dissipation Factor | / | mW/ | 6 | |
| Thermal Time Constant | / | sec | 20 | |
| Withstand Voltage | / | 500V/AC, 1min | / | No breakdown or arcing |
| Insulation Resistance | / | 500V/DC, 1min | M | 500 |
| Operating Temperature Range | / | / | -40 ~ 130 | |
| Maximum Rated Power | Pmax | / | W | 0.5 |
| 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 | / | Wetted area 95% |
| Resistance to Soldering Heat | / | Solder pot temperature: 2605, immersion depth 6mm from thermistor body, Time 101 sec | / | R/R25% |
| Steady State Damp Heat | / | Temperature: 402, Humidity: 932%, Time: 500 hours | / | R/R25% |
| Rapid Temperature Change | / | -40 30min 25 5min 130 30min 25 5min, repeated 5 times | / | R/R25% |
| High Temperature Storage | / | Temperature: 1305, Time: 1000 hours | / | R/R25% |
| Maximum Steady Current Endurance | / | Continuously apply maximum steady current at room temperature for 50024h | / | R/R25% |
| Maximum Capacitance Endurance | / | Apply maximum allowable capacitance, intermittently close 50ms, open 5 times the thermal time constant for a cycle, apply 1000 cycles. | / | R/R25% |
| 3. Usage Precautions | ||||
| Product Purpose | / | Inrush current suppression | / | / |
| Soldering Iron Welding | / | Welding spot at least 2mm from coating layer, welding temperature < 360, welding time < 3 seconds | / | / |
| 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 | ||||
| / | / | / | / | See Figure (Implied by context, no explicit figure provided in text) |
| 5. Outline Dimensions (Unit: mm) | ||||
| D | L | F | T | d |
| Max 7.0 | Min 25 | 2.5 1 | Max 5 | 0.45 0.05 |
| 6. Product Model Description | ||||
| NTC 10D - 5 | / | |||
| NTC: Power Type NTC Thermistor | 10: Zero-power resistance at 25 is 10 | 5: Body diameter D5 | / | / |
| Models: MF72-10D5, NTC 10D-5 | ||||
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
1811091810_Nanjing-Shiheng-Elec-MF72-10D5_C72681.pdf
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