Product Overview
The MF52 Series Temperature Measuring NTC Thermistors, specifically the MF52D 104F3950-100 model, are designed for temperature measurement and control applications. These precision NTC thermistors offer reliable performance with a zero-power resistance of 100K at 25C and a B25/50 value of 3950K. They are constructed with an NTC thermistor core encapsulated in black epoxy resin, featuring standard lead wires. Suitable for a wide operating temperature range, these components are ideal for various industrial and electronic applications where accurate temperature sensing is crucial.
Product Attributes
- Brand: Shiheng ()
- Origin: China
- Product Type: Temperature Measuring NTC Thermistor
- Series: MF52
- Core Component Material: NTC Thermistor
- Encapsulation Material: Epoxy Resin
- Encapsulation Color: Black
- Lead Wire Material: UL1685 30#TC
- Lead Wire Color: Black
- Certifications: ISO9001:2015, IATF16949:2016, ISO14001:2015, National Torch Program Project Product, RoHS, CQC Certification, Jiangsu Provincial High-tech Product Certification
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.01, Test Power 0.1mW | K | 100K1% |
| B Value | 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 Core Component Operating Temperature Range | / | / | -40 ~ 125 | |
| Finished Product Operating Temperature Range | / | / | -20~105 | |
| Maximum Rated Power | Pmax | / | mW | 50 |
| Resistance-Temperature Characteristics | / | / | / | See Appendix 1 |
| Resistance Tolerance | / | / | / | See Appendix 2 |
| Lead Strength | / | Fix resistor end, Pull force: 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 Cycling | / | -40 30min 25 5min 105 30min 25 5min, Repeat 5 times | / | 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% |
Product Model Description
MF52D 104F3950-100
- MF52: Precision NTC Thermistor
- D: Standard Lead Wire
- 104: Zero-power resistance at 25 is 100K
- F: Resistance Tolerance Code (F-1%)
- 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: -10 to 40.
- Storage Humidity: 75% RH.
- Avoid storage in environments with corrosive gases or direct sunlight.
- After opening the package, reseal for storage. Shelf life is 1 year. Products exceeding the shelf life can be re-inspected according to the specified items; if they meet the requirements, they can still be used.
- If using heat shrink tubing during processing, do not use a hot air blower for shrinking. Recommended method: Place the product with heat shrink tubing into a constant temperature oven at 110 for 10-12 minutes for shrinking.
External Dimensions
(Unit: mm)
[Diagram or table for dimensions would be placed here if provided in source]
1912111437_Nanjing-Shiheng-Elec-MF52D-104F3950-100_C394025.pdf
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