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Specifications
Resistance @ 25℃:
10kΩ
Power(Watts):
50mW
Operating Temperature:
-55℃~+250℃
Tolerance:
±3%
B Constant (25℃/100℃):
-
Steady State Current (Max):
-
Diameter (φD):
1.8mm
Thermal Time Constant:
20s
B Constant (25℃/85℃):
3986K
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
3950K
B Constant Tolerance:
±1%
Mfr. Part #:
MF58 103H3950
Package:
Through Hole,D1.8xL4mm
Key Attributes
Model Number:
MF58 103H3950
Product Description
NTC Thermistors - MF58 Series
Product Overview
The MF58 series glass-encapsulated NTC thermistors are designed for accurate temperature measurement and control. These components offer reliable performance across a wide operating temperature range, making them suitable for various industrial and electronic applications. Key features include high sensitivity, fast response time, and robust construction.
Product Attributes
- Brand: Shiheng Electronics
- Origin: Nanjing, China
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, ROHS, CQC, Jiangsu High-tech Product
Technical Specifications
| Item | Symbol | Test Conditions | Unit | Performance Requirements |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.05, Test Power 0.1mW | K | 10K3% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb), Tb=500.05 | K | 39501% |
| Dissipation Factor | Still air | mW/ | 2 | |
| Time Constant | Still air | sec | 20 | |
| Withstand Voltage | / | / | / | 1500V/AC, 1min, No breakdown or arcing |
| Insulation Resistance | / | / | M | 500, 500V/DC, 1min |
| Operating Temperature Range | / | / | -55~250 | |
| Max. Rated Power | Pmax | / | mW | 50 |
| Lead Strength | / | Pulling force: 101 N, Time: 101 sec | / | No visible damage, R25 R/R 2% |
| 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/R 2% |
| Steady State Damp Heat | / | Temperature: 402, Humidity: 932%, Time: 500 hours | / | R25 R/R 2% |
| Rapid Temperature Change | / | -55 30min 25 5min 250 30min 25 5min, 5 cycles | / | R25 R/R 2% |
| High Temperature Storage | / | Temperature: 2505, Time: 1000 hours | / | R25 R/R 2% |
| Low Temperature Storage | / | Temperature: -555, Time: 1000 hours | / | R25 R/R 2% |
Product Model Explanation
MF58-103H 3950
- MF58: Glass-encapsulated temperature sensing NTC thermistor
- 103: Zero-power resistance at 25 is 10K
- H: Resistance tolerance code (F-1%, G-2%, H-3%, J-5%)
- 3950: B25/50 value is 3950K
Usage Precautions
- Purpose: Temperature measurement and control.
- Avoid current flowing through the thermistor chip that causes self-heating and measurement errors.
- When soldering with a soldering iron, the welding point should be at least 2mm away from the glass shell. Welding temperature should be below 360, and welding time should be less than 3 seconds.
- If the lead wire is bent, the bending point should be more than 2mm away from the glass shell to avoid damage.
- Storage Temperature: -1040.
- Storage Humidity: 75% RH.
- Avoid storage in environments with corrosive gases and direct sunlight.
- Reseal the packaging after opening.
External Dimensions
(Unit: mm)
| No. | Name | Material Specification | Quantity | Remarks |
|---|---|---|---|---|
| 1 | Component | NTC Thermistor | 1 | / |
| 2 | Housing | Glass | 1 | / |
| 3 | Lead Wire | Tinned steel wire 0.50.05 | 2 | / |
Contact Information
Nanjing Shiheng Electronics Co., Ltd.
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing City, China
Tel: 025-52121868
Fax: 025-52122373
Email: sales@shiheng.com.cn
Website: Http://www.shiheng.com.cn
1810161324_Nanjing-Shiheng-Elec-MF58-103H3950_C123394.pdf
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