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Specifications
Resistance @ 25℃:
1Ω
Power(Watts):
5W
Pitch:
10mm
Operating Temperature:
-40℃~+200℃
Tolerance:
±20%
B Constant (25℃/100℃):
-
Steady State Current (Max):
16A
Thermal Time Constant:
1.83min
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
2600K
B Constant Tolerance:
±10%
Mfr. Part #:
MF73T-1 1/16
Package:
Through Hole,P=10mm
Key Attributes
Model Number:
MF73T-1 1/16
Product Description
Product Overview
The MF73T-1 is a high-power NTC thermistor manufactured by Nanjing Shiheng Electronics Technology Co., Ltd. It is designed to suppress inrush current and operates within a wide temperature range of -40 to 200. This thermistor is suitable for applications requiring robust performance and reliability, as evidenced by its various certifications including ISO9001, ISO/TS16949, ISO14001, RoHS, CQC, Jiangsu High-tech Product, and TUV.
Product Attributes
- Brand: Shiheng ()
- Product Name: High-power NTC Thermistor (NTC )
- Enclosure Material: Black epoxy resin ()
- Lead Material: Tinned copper wire ()
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC Safety Certification, Jiangsu High-tech Product Certification, TUV Certification
Technical Specifications
| 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 | 1 20% | |
| B value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 2600 10% |
| Maximum steady-state current | I max | / | A | 16 |
| Maximum allowable capacitance | CT | 240Vac | F | 1500 |
| Dissipation factor | / | mW/ | Approx. 28 | |
| Thermal time constant | / | sec | Approx. 110 | |
| Withstand voltage | / | 500V/AC, 1min | / | No breakdown or flashover |
| Insulation resistance | / | 500V/DC, 1min | M | 500 |
| Operating temperature range | / | / | -40 ~ 200 | |
| Maximum rated power | Pmax | / | W | 5 |
| 2. Reliability | ||||
| Lead strength | / | Tensile force: 101 sec (for 0.5| / | No visible damage, R/R25% | |
| Solderability | / | Temperature 2455, time 2-3 sec | / | Soldered area 95% |
| Resistance to soldering heat | / | Solder pot temperature: 2605, immersion depth 6mm from resistor body, time 101 sec | / | R/R25% |
| Static damp heat | / | Temperature: 402, Humidity: 932%, Time: 1000 hours | / | R/R25% |
| Temperature rapid change | / | -40 30min25 5min200 30min 25 5min, repeated 5 times | / | R/R25% |
| High-temperature storage | / | Temperature: 2005, Time: 1000 hours | / | R/R25% |
| Maximum steady-state current endurance | / | Continuous application of maximum steady-state current at room temperature, 100024h | / | R/R25% |
| Maximum electrical capacity | / | Apply maximum allowable electrical capacity, intermittently close 50ms, open 5 times the thermal time constant for one cycle, apply 1000 cycles to the thermistor. | / | R/R25% |
| 5. External Dimensions (Unit: mm) | ||||
| D | / | / | mm | Max 22.5 |
| L | / | / | mm | Min 25 |
| F | / | / | mm | 10.01 |
| T | / | / | mm | Max 7.0 |
| d | / | / | mm | 1.00.05 |
| 6. Product Model Description | ||||
| MF73T-1 | / | / | / | High-power NTC Thermistor |
| 1 | / | / | / | Zero-power resistance at 25: 1 |
| 16 | / | / | / | Maximum steady-state current: 16A |
3. Usage Precautions
- Purpose: Inrush current suppression.
- When soldering with a soldering iron, the welding point should be at least 2mm away from the coating layer. The soldering temperature should be below 360, and the soldering time should be less than 3 seconds.
- Storage temperature: -1040; Storage humidity: 75% RH.
- Avoid storage in environments with corrosive gases and direct sunlight.
- After opening the package, re-seal for storage.
- Storage period: 1 year.
1810161311_Nanjing-Shiheng-Elec-MF73T-1-1-16_C123334.pdf
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