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Specifications
Resistance @ 25℃:
8Ω
Power(Watts):
2W
Pitch:
7.5mm
Operating Temperature:
-40℃~+170℃
Tolerance:
±20%
B Constant (25℃/100℃):
-
Steady State Current (Max):
2A
Thermal Time Constant:
32s
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
2800K
B Constant Tolerance:
±10%
Mfr. Part #:
MF72 8D9
Package:
Through Hole,P=7.5mm
Key Attributes
Model Number:
MF72 8D9
Product Description
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 focus on electrical characteristics, reliability, and operational parameters suitable for industrial applications. It is manufactured by Nanjing Shiheng Electronics Technology Co., Ltd. and is available under the model MF72-8D9.
Product Attributes
- Brand: Shiheng
- Product Type: Power Type NTC Thermistor
- Model Series: MF72
- Origin: Nanjing, China
- Encapsulation Material: Black Silicone Resin
- Lead Material: Tinned Copper Wire
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC Safety (CQC04001010556), UL (E241319), Jiangsu High-tech Product Certification, TUV (R50245892)
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| 1. Electrical Performance | ||||
| Zero-power resistance at 25 | R25 | Ta=250.5, Test Power 0.1mw, in air | 8 20% | |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 2800 10% |
| Max Steady State Current | I max | / | A | 2 |
| Max Allowable Capacitance | CT | 240Vac | F | 150 |
| Dissipation Factor | / | mW/ | 11 | |
| Thermal Time Constant | / | sec | 32 | |
| Dielectric Strength | / | 500V/AC, 1min | / | No breakdown or flashover |
| Insulation Resistance | / | 500V/DC, 1min | M | 500 |
| Operating Temperature Range | / | / | -40 ~ 170 | |
| Max Rated Power | Pmax | / | W | 2 |
| Resistance-Temperature Curve | / | / | / | See Figure 1 |
| Volt-Ampere Curve | / | / | / | See Figure 2 |
| 2. Reliability | ||||
| Lead Strength | / | Tensile force: 10N (for 0.5| / | No visible damage, R/R 25% | |
| Solderability | / | 2455, 2-3 sec | / | 95% tinning area |
| Resistance to Soldering Heat | / | 2605, 6mm from body, 101 sec | / | R/R 25% |
| Steady State Damp Heat | / | 402, 93 2% RH, 1000 hours | / | R/R 25% |
| Rapid Change of Temperature | / | -40 30min 25 5min 170 30min 25 5min, 5 cycles | / | R/R 25% |
| High Temperature Storage | / | 1705, 1000 hours | / | R/R 25% |
| Max Steady State Current Endurance | / | Max steady state current applied at room temperature, 100024h | / | R/R 25% |
| Max Capacitance Load | / | 1000 cycles (50ms on, 5 times thermal time constant off per cycle) | / | R/R 25% |
| 3. Usage Precautions | ||||
| Product Purpose | / | / | / | Surge current suppression |
| Soldering | / | Distance from coating 2mm, Temp < 360, Time < 3 sec | / | / |
| Storage Temperature | / | / | -10 ~ 40 | |
| Storage Humidity | / | / | % RH | 75% |
| Storage Environment | / | / | / | Avoid corrosive gases and direct sunlight |
| Packaging | / | / | / | Reseal after opening |
| Storage Period | / | / | / | 1 year |
| 5. Outline Dimensions (Unit: mm) | ||||
| D | / | / | mm | Max 11.0 |
| L1 | / | / | mm | Min 17 |
| L2 | / | / | mm | 8 2 |
| F1 | / | / | mm | 7.5 1 |
| F2 | / | / | mm | 4 1.5 |
| T | / | / | mm | Max 5.5 |
| d | / | / | mm | 0.8 0.05 |
| 6. Product Model Description | ||||
| MF72 | / | / | / | Power Type NTC Thermistor |
| 8 | / | / | / | Zero-power resistance at 25: 8 |
| 9 | / | / | / | Body diameter D9 |
Contact Information:
Tel: 025-52121868
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing City
Fax: 025-52122373
Email: sales@shiheng.com.cn
Website: Http://www.shiheng.com.cn
1810161311_Nanjing-Shiheng-Elec-MF72-8D9_C122767.pdf
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