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Specifications
Resistance @ 25℃:
10kΩ
Power(Watts):
50mW
Pitch:
1.7mm
Operating Temperature:
-55℃~+125℃
Tolerance:
±5%
B Constant (25℃/100℃):
-
Steady State Current (Max):
-
Thermal Time Constant:
7s
B Constant (25℃/85℃):
4021K
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
3950K
B Constant Tolerance:
±1%
Mfr. Part #:
MF52A103J3950 (A1)
Package:
Through Hole,P=1.7mm
Key Attributes
Model Number:
MF52A103J3950 (A1)
Product Description
Product Overview
The MF52 series from Nanjing Shiheng Electronics Technology Co., Ltd. are bead-type, temperature-measuring NTC thermistors designed for temperature measurement and control applications. These components offer precise resistance values and B-values, with a wide operating temperature range of -55 to 125. They are suitable for various industrial and electronic applications where accurate temperature sensing is critical. The product is manufactured by Nanjing Shiheng Electronics Technology Co., Ltd. and adheres to strict quality and environmental management standards.
Product Attributes
- Brand: Shiheng
- Origin: Nanjing, China
- Product Type: Bead-type NTC Thermistor
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, ROHS, CQC, Jiangsu High-tech Product, UL 1434 (File # E240991)
- Materials: Modified resin encapsulation, Tin-plated copper-clad steel leads
- Color: Black (encapsulation), Silver (leads)
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.05, Test power 0.1mW | K | 10K5% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb), Tb=500.01 | K | 39501% |
| Dissipation Factor | Still air | mW/ | 2 | |
| Time Constant | Still air | sec | 7 | |
| Insulation Resistance | / | 100V/DC, 1min | M | 100 |
| Operating Temperature Range | / | / | -55125 | |
| Maximum Rated Power | Pmax | / | mW | 50 |
| Resistance-Temperature Characteristic | / | / | / | See Appendix 1 |
| Resistance Tolerance | / | / | / | See Appendix 2 |
| Lead Strength | / | Fix resistor end, Pulling force: 51 N, Time: 101 sec | / | No visible damage |
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Wetted 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: 932%, Time: 500 hours | / | R25 R/R2% |
| Rapid Temperature Change | / | -55 30min 25 5min 125 30min 25 5min, Repeated 5 cycles | / | R25 R/R2% |
| High Temperature Storage | / | Temperature: 1255, Time: 1000 hours | / | R25 R/R2% |
| Low Temperature Storage | / | Temperature: -55, Time: 1000 hours | / | R25 R/R2% |
| Part Number | Description |
|---|---|
| MF52 A 103 J 3950 (A1) | Bead-type temperature measuring NTC thermistor |
| Model Component | Description |
|---|---|
| MF52 | Bead-type precision NTC thermistor |
| A | Lead wire is tin-plated copper-clad steel wire |
| 103 | Zero-power resistance at 25 is 10K |
| J | Resistance tolerance code: F-1%, G-2%, H-3%, J-5% |
| 3950 | B25/50 value is 3950K |
| A1 | Small head |
| Item | Material/Specification | Quantity | Remarks | |
|---|---|---|---|---|
| 1 | Component | NTC Thermistor | 1 | / |
| 2 | Encapsulation | Modified resin | 1 | Black |
| 3 | Lead wire | Tin-plated copper-clad steel wire | 2 | Silver |
Usage Precautions
- Application: Temperature measurement and control.
- Measurement Accuracy: Avoid current flowing through the thermistor chip causing self-heating and measurement errors.
- Soldering: For soldering iron use, the welding point should be at least 2mm away from the coating layer. Soldering temperature should be below 300, and soldering time should be less than 3 seconds.
- Storage Conditions: Storage temperature: -1040; Storage humidity: 75% RH.
- Environmental Considerations: Avoid storage in environments with corrosive gases and direct sunlight.
- Packaging: Reseal packaging after opening.
1810161324_Nanjing-Shiheng-Elec-MF52A103J3950--A1_C123378.pdf
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