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Specifications
Resistance @ 25℃:
2.5Ω
Power(Watts):
3W
Pitch:
7.5mm
Operating Temperature:
-40℃~170℃
Tolerance:
±20%
B Constant (25℃/100℃):
-
Steady State Current (Max):
5A
Thermal Time Constant:
43s
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
2600K
B Constant Tolerance:
±10%
Mfr. Part #:
MF72 2.5D11
Package:
Through Hole,P=7.5mm
Key Attributes
Model Number:
MF72 2.5D11
Product Description
Product Overview
The MF72 series from Nanjing Shiheng Electronics Technology Co., Ltd. are power type NTC thermistors designed to suppress inrush current. These components offer reliable performance with a wide operating temperature range and are manufactured under stringent quality management systems. They are suitable for applications requiring protection against current surges.
Product Attributes
- Brand: Shiheng
- Product Type: Power Type NTC Thermistor
- Model Series: MF72
- Origin: China
- Encapsulation Material: Black Silicone Resin
- Lead Material: Tinned Copper Wire
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC, UL (E241319), TUV (R50245892), Jiangsu High-tech Product
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power Resistance at 25 | R25 | Ta=250.5, Test Power 0.1mW, Tested in air | 2.5 20% | |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) K | K | 2600 10% |
| Max Steady Current | I max | - | A | 5 |
| Max Allowable Capacitance | CT | 240Vac | F | 470 |
| Dissipation Factor | - | mW/ | 13 | |
| Thermal Time Constant | - | sec | 43 | |
| Withstand Voltage | - | 500V/AC, 1min | - | No breakdown or flashover |
| Insulation Resistance | - | 500V/DC, 1min | M | 500 |
| Operating Temperature Range | - | - | -40 ~ 170 | |
| Max Rated Power | Pmax | - | W | 3 |
| Lead Strength (Pull) | - | 101 sec | N | 10 (for 0.5 |
| Solderability | - | 2455, 2-3 sec | - | 95% tinned area |
| Resistance to Soldering Heat | - | 2605, 6mm from body, 101 sec | - | R/R25% |
| Steady State Damp Heat | - | 402, 932% RH, 1000 hours | - | R/R25% |
| Rapid Temperature Change | - | 5 cycles (-40 30min25 5min170 30min25 5min) | - | R/R25% |
| High Temperature Storage | - | 1705, 1000 hours | - | R/R25% |
| Max Steady Current Endurance | - | Continuous max steady current at room temp, 100024h | - | R/R25% |
| Max Capacitance Endurance | - | 1000 cycles (50ms on, 5x off) | - | R/R25% |
| Model: MF72-2.5D11 | Body Diameter (D) | - | mm | 11 |
| Model: MF72-2.5D11 | L1 | - | mm | 17 Min |
| Model: MF72-2.5D11 | L2 | - | mm | 8 2 |
| Model: MF72-2.5D11 | F1 | - | mm | 7.5 1 |
| Model: MF72-2.5D11 | F2 | - | mm | 4 1.5 |
| Model: MF72-2.5D11 | T | - | mm | Max 5.5 |
| Model: MF72-2.5D11 | d | - | mm | 0.8 0.05 |
Usage and Storage
- Primary Use: Inrush current suppression.
- Soldering: Keep at least 2mm from the coating layer, temperature below 360, time less than 3 seconds.
- Storage Temperature: -10 to 40.
- Storage Humidity: 75% RH.
- Storage Environment: Avoid corrosive gases and direct sunlight.
- Packaging: Reseal after opening.
- Shelf Life: 1 year.
1810161311_Nanjing-Shiheng-Elec-MF72-2-5D11_C122770.pdf
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