Glass Encapsulated NTC Thermistor for Temperature Control Nanjing Shiheng Elec MF58 103F3950 Series
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Product Description
NTC Thermistor - MF58 Series
Product Overview
The MF58 series glass-encapsulated NTC thermistors from Nanjing Shiheng Electronics Technology Co., Ltd. are designed for temperature measurement and control applications. These components offer reliable performance with precise resistance-temperature characteristics, making them suitable for various industrial and electronic uses. They are characterized by their glass encapsulation for protection and their ability to operate within a wide temperature range.Product Attributes
- Brand: Shiheng
- Origin: Nanjing, China
- Product Type: Glass Encapsulated Temperature Measuring NTC Thermistor
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC (CQC09001033986), Jiangsu High-tech Product
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.05, Test Power 0.1mW | K | 10K1% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb), Tb=500.05 | K | 39501% |
| Dissipation Factor | In still air | mW/ | 2 | |
| Time Constant | In still air | sec | 20 | |
| Withstand Voltage | / | / | / | 1500V/AC, 1min (No breakdown or arcing) |
| Insulation Resistance | / | 500V/DC, 1min | M | 500 |
| Operating Temperature Range | / | / | -55 ~ 250 | |
| Max. Rated Power | Pmax | / | mW | 50 |
| Resistance-Temperature Characteristic | / | / | / | See Appendix 1 |
| Resistance Tolerance | / | / | / | See Appendix 2 |
Reliability Tests
| Item | Test Condition & Method | Technical Requirement |
|---|---|---|
| Lead Wire Strength | Fix the resistor, Pull force: 101 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 Humidity Heat | Temperature: 402, Humidity: 932%, Time: 500 hours | R25 R/R2% |
| Temperature Cycling | -55 30min 25 5min 250 30min 25 5min, 5 cycles | R25 R/R2% |
| High Temperature Storage | Temperature: 2505, Time: 1000 hours | R25 R/R2% |
| Low Temperature Storage | Temperature: -555, Time: 1000 hours | R25 R/R2% |
Usage Precautions
- Application: Temperature measurement and control.
- Avoid current flowing through the thermistor chip causing self-heating and measurement errors.
- When soldering with an iron, maintain a distance of at least 2mm from the glass bulb. Soldering temperature should be below 360 with a duration of less than 3 seconds.
- If bending lead wires, ensure the bend point is at least 2mm from the glass bulb to prevent damage.
- Storage Temperature: -10 ~ 40.
- Storage Humidity: 75% RH.
- Avoid storage in environments with corrosive gases or direct sunlight.
- Reseal packaging after opening.
Model Description
MF58-103F 3950- MF58: Glass Encapsulated Temperature Measuring NTC Thermistor
- 103: Zero-power resistance at 25 is 10K
- F: Resistance Tolerance Code (F-1%, G-2%, H-3%, J-5%)
- 3950: B25/50 Value is 3950K
Certifications
- Quality Management System: ISO9001:2008, ISO/TS16949:2009
- Environmental Management System: ISO14001:2004
- Environmental Compliance: RoHS
- Product Certification: CQC (CQC09001033986)
- Regional Certification: Jiangsu High-tech Product
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