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Specifications
Resistance @ 25℃:
20kΩ
Power(Watts):
450mW
Pitch:
2.5mm
Operating Temperature:
-30℃~+125℃
Tolerance:
±10%
B Constant (25℃/100℃):
-
Steady State Current (Max):
-
Thermal Time Constant:
20s
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
4250K
B Constant Tolerance:
±10%
Mfr. Part #:
MF11 203K
Package:
Through Hole,P=2.5mm
Key Attributes
Model Number:
MF11 203K
Product Description
Product Overview
The MF11 series of compensated NTC thermistors, manufactured by Nanjing Shiheng Electronics Co., Ltd., are designed for temperature measurement and control applications. This product offers precise resistance values and B-values, ensuring reliable performance across a wide operating temperature range. They are suitable for various industrial and electronic applications requiring accurate temperature sensing.
Product Attributes
- Brand: Shiheng Electronics
- Product Name: Compensated NTC Thermistor
- Model Series: MF11
- Origin: Nanjing, China
- Encapsulation Material: Epoxy Resin
- Lead Material: Tinned Copper Clad Steel Wire
- Body Color: Green
- Marking Color: Black
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC, TUV
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power Resistance at 25 | R25 | Ta=250.1, Test Power 0.1mW | K | 20K10% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 425010% |
| Dissipation Factor | Still Air | mW/ | Approx. 4.5 | |
| Time Constant | Still Air | sec | Approx. 20 | |
| Insulation Resistance | / | 1000V/DC, 1min | M | 500 |
| Operating Temperature Range | / | / | -30 ~ 125 | |
| Maximum Rated Power | Pmax | / | mW | 450 |
| Lead Strength (Tensile) | / | Time: 101 sec | N | 0.35 |
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Tinning Area 95% |
| Resistance Change after Soldering Heat | R25 | Tin Pot Temp: 2605, Immersion Depth 6mm from body, Time 51 sec | R/R | 3% |
| Resistance Change after Steady Damp Heat | R25 | Temp: 402, Humidity: 932%, Time: 500 hours | R/R | 3% |
| Resistance Change after Temperature Cycling | R25 | -30 30min25 5min125 30min25 5min, 5 cycles | R/R | 3% |
| Resistance Change after High Temperature Storage | R25 | Temp: 1255, Time: 1000 hours | R/R | 5% |
| Resistance Change after Low Temperature Storage | R25 | Temp: -305, Time: 1000 hours | R/R | 5% |
| Product Model | Description |
|---|---|
| MF11-203K | MF11: Compensated NTC Thermistor; 203: 20K at 25; K: 10% Tolerance |
Usage Precautions
- Primary Use: Temperature measurement and control.
- Soldering: When soldering with an iron, maintain a distance of at least 2mm from the coating layer. Soldering temperature should be below 360, with a time less than 3 seconds.
- Storage Conditions: Temperature: -10 to 40; Humidity: 75% RH.
- Environment: Avoid storage in environments with corrosive gases or direct sunlight.
- Packaging: Reseal packaging after opening.
1810161311_Nanjing-Shiheng-Elec-MF11-203K_C123360.pdf
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