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Specifications
Resistance @ 25℃:
10kΩ
Power(Watts):
50mW
Operating Temperature:
-40℃~125℃
Tolerance:
±1%
B Constant (25℃/100℃):
-
Steady State Current (Max):
-
Thermal Time Constant:
7s
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
3950K
B Constant Tolerance:
±1%
Mfr. Part #:
MF52D 103F3950-100
Key Attributes
Model Number:
MF52D 103F3950-100
Product Description
Product Overview
The MF52 Series Thermistor is a bead-type, temperature-sensing NTC thermistor designed for temperature measurement and control applications. It offers precise resistance-temperature characteristics with options for varying resistance values, accuracy, and lead lengths. Manufactured by Nanjing Shiheng Electronics Technology Co., Ltd., this product is ideal for applications requiring reliable temperature monitoring.
Product Attributes
- Brand: Shiheng
- Origin: Nanjing, China
- Product Type: Temperature Sensing NTC Thermistor
- Series: MF52
- Certifications: ISO9001:2015, IATF16949:2016, ISO14001:2015, ROHS, CQC, Jiangsu High-tech Product
- Material: Epoxy resin encapsulation, UL1685 30#TC leads
- Color: Black
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Performance Requirements |
|---|---|---|---|---|
| 25 Zero-Power Resistance | R25 | T=250.01, Power0.1mW | K | 10K1% |
| B Value (25/50) | B25/50 | Ta=250.01, Tb=500.01 | K | 39501% |
| Dissipation Factor | Still air | mW/ | 2 | |
| Time Constant | Still air | sec | 7 | |
| Insulation Resistance | / | 100V/DC, 1min | M | 100 |
| NTC Operating Temperature Range | / | / | -40 ~ 125 | |
| Finished Product Operating Temperature Range | / | / | -20~105 | |
| Max. Rated Power | Pmax | / | mW | 50 |
| Lead Strength | / | Fix resistor end, Tension: 51 N, Time: 101 sec | / | No visible damage; R25 R/R2% |
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Tinning area 95% |
| Resistance to Soldering Heat | / | Solder pot temperature: 2605, Immersion depth 6mm from resistor body, Time 51 sec | / | R25 R/R2% |
| Steady State Damp Heat | / | Temperature: 402, Humidity: 93 2%, Time: 500 hours | / | R25 R/R2% |
| Temperature Rapid Change | / | -40 30min 25 5min 105 30min 25 5min, 5 cycles | / | R25 R/R2% |
| High Temperature Storage | / | Temperature: 1055, Time: 1000 hours | / | R25 R/R2% |
| Low Temperature Storage | / | Temperature: -40, Time: 1000 hours | / | R25 R/R2% |
| Model: MF52D 103F3950-100 | / | / | / | / |
| Model Description: | / | / | / | / |
| MF52 | / | Bead-type precision NTC thermistor | / | / |
| D | / | Lead wire is 30# standard temperature lead wire | / | / |
| 103 | / | 25 zero-power resistance value 10K | / | / |
| F | / | Resistance accuracy code (F=1%) | / | (G=2%, H=3%, J=5%) |
| 3950 | / | B25/50 value 3950K | / | / |
| 100 | / | Lead wire length 100mm | / | / |
Usage Precautions
- Purpose: Temperature measurement and control.
- Avoid excessive current that can cause self-heating and measurement errors.
- When soldering with a soldering iron, maintain a distance of at least 2mm from the encapsulation head. Soldering temperature should be below 360, and soldering time less than 3 seconds.
- Storage Temperature: -1040.
- Storage Humidity: 75% RH.
- Avoid storage in environments with corrosive gases and direct sunlight.
- After opening packaging, reseal for storage. Shelf life is 1 year. Products exceeding the shelf life can be re-inspected according to the standard requirements and can still be used if they meet the specifications.
- If using heat shrink tubing during processing, do not use a hairdryer for shrinking. It is recommended to place the product with the heat shrink tubing fitted into a constant temperature oven and heat shrink at 110 for 10-12 minutes.
Physical Dimensions (Unit: mm)
Refer to attached diagrams for detailed dimensions (diagrams not provided in text).
Material Composition
| Sequence | Name | Material Specification | Quantity | Remarks |
|---|---|---|---|---|
| 1 | Component | NTC Thermistor | 1 | / |
| 2 | Epoxy Resin | Encapsulation Epoxy Resin | 1 | Black |
| 3 | Lead Wire | UL1685 30#TC | 2 | Black |
1912111437_Nanjing-Shiheng-Elec-MF52D-103F3950-100_C394024.pdf
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