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Specifications
Resistance @ 25℃:
10kΩ
Power(Watts):
50mW
Pitch:
2mm
Operating Temperature:
-40℃~125℃
Tolerance:
±1%
B Constant (25℃/100℃):
-
Steady State Current (Max):
-
Thermal Time Constant:
5s
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
3950K
B Constant Tolerance:
±1%
Mfr. Part #:
MF55 103F3950
Package:
Through Hole,P=2mm
Key Attributes
Model Number:
MF55 103F3950
Product Description
Product Overview
The MF55 series thin-film NTC thermistors from Nanjing Shiheng Electronics Technology Co., Ltd. are designed for temperature measurement and control applications. These components offer precise resistance and B-value characteristics, ensuring reliable performance in various operating conditions. They are suitable for applications where accurate temperature sensing is critical.
Product Attributes
- Brand: Shiheng
- Origin: Nanjing, China
- Product Type: Thin-film NTC Thermistor
- Certifications: ISO9001:2015, IATF16949:2016, ISO14001:2015
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | T=250.01, Test power 0.1mW | K | 10K1% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb), Ta=250.01, Tb=500.01 | K | 39501% |
| Dissipation Factor | Still air | mW/ | 0.8 | |
| Time Constant | Still air | sec | 5 | |
| Operating Temperature Range | / | / | -40 ~ 125 | |
| Maximum Rated Power | Pmax | / | mW | 50 |
| Resistance-Temperature Characteristics | / | / | / | See Appendix 1 |
| Resistance Tolerance | / | / | / | See Appendix 2 |
Reliability Tests
| Item | Test Conditions and Method | Technical Requirements |
|---|---|---|
| Lead Pull Test | Fix the thermistor probe, gradually pull the lead with 1 Newton of force, maintain for (101) seconds. | No appearance damage |
| Solderability Test | Soldering temperature (24510), immersion time: (31) s | Tinned area 95% |
| Soldering Heat Resistance Test | Soldering temperature (2605), immersion time: (51)s | R25 R/R 2% |
| High Temperature Storage Test | 1255, 100024 hours | R25 R/R 3% |
| Low Temperature Storage Test | -405, 100024 hours | R25 R/R 3% |
| Steady State Damp Heat Test | 402, 90-95%RH, 240 hours | R25 R/R 3% |
| Temperature Cycling Test | Temperature change under the conditions of the table below, cycled five times. | R25 R/R 3% |
Usage Precautions
- Product Purpose: Temperature measurement and control.
- Avoid excessive current causing self-heating and measurement errors.
- When soldering with an iron, the soldering point should be at least 2mm from the film. 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.
- Reseal packaging after opening and store. Shelf life is 1 year. After the shelf life, re-inspection according to the standard items can be performed; if requirements are met, it can still be used.
- If heat shrink tubing is used during processing, do not use a heat gun for shrinking. It is recommended to place the product with heat shrink tubing into a constant temperature oven and shrink at 110 for 10-12 minutes.
Product Identification
- Model: MF55 103F3950
- Marking Explanation:
- 103: Zero-power resistance at 25 is 10K.
- 3950: B25/50 value is 3950K.
Dimensions
(Detailed dimensions are not provided in a tabular format in the source text, only a reference to '' which translates to 'External Dimensions'.)
Contact Information
Nanjing Shiheng Electronics Technology Co., Ltd.
- Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing City, China
- Postal Code: 211121
- Tel: 025-52121868
- Fax: 025-52122373
- E-mail: sales@shiheng.com.cn
- Website: Http://www.shiheng.com.cn
1912111437_Nanjing-Shiheng-Elec-MF55-103F3950_C394027.pdf
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