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Specifications
Resistance @ 25℃:
10kΩ
Power(Watts):
50mW
Operating Temperature:
-55℃~+250℃
Tolerance:
±1%
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 103F3950
Package:
Through Hole,D1.8xL4mm
Key Attributes
Model Number:
MF58 103F3950
Product Description
Product Overview
The MF58 series glass-encapsulated thermistor is a temperature-measuring NTC thermistor designed for temperature measurement and control applications. It features a glass encapsulation for protection and reliability. This product is manufactured by Nanjing Shiheng Electronics Technology Co., Ltd. and offers precise resistance-temperature characteristics.
Product Attributes
- Brand: Shiheng
- Origin: China
- Product Type: NTC Thermistor
- Series: MF58
- Encapsulation: Glass
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, ROHS, CQC, 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 | Still air | mW/ | 2 | |
| Time Constant | Still air | sec | 20 | |
| Withstand Voltage | 1500V/AC, 1min, No breakdown or flashover | |||
| Insulation Resistance | 500V/DC, 1min | M | 500 | |
| Operating Temperature Range | -55~250 | |||
| Maximum Rated Power | Pmax | mW | 50 | |
| Lead Strength | Pull: 101 N, Time: 101 sec | No visible damage, R/R2% | ||
| Solderability | Temperature 2455, Time 2-3 sec | Tinning area 95% | ||
| Resistance to Soldering Heat | Pot temperature: 2605, Immersion depth 6mm, Time 51 sec | R/R2% | ||
| Steady State Humidity Heat | Temperature: 402, Humidity: 932%, Time: 500 hours | R/R2% | ||
| Temperature Cycling | -55 30min25 5min250 30min25 5min, 5 cycles | R/R2% | ||
| High Temperature Storage | Temperature: 2505, Time: 1000 hours | R/R2% | ||
| Low Temperature Storage | Temperature: -555, Time: 1000 hours | R/R2% |
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
Usage Precautions
- Purpose: Temperature measurement and control.
- Avoid current flow through the thermistor chip causing self-heating and measurement errors.
- When soldering with a soldering iron, the welding point should be at least 2mm away from the glass bead, with a soldering temperature below 360 and a welding time less than 3 seconds.
- If the lead wire is bent, the bending point should be more than 2mm away from the glass bead to prevent damage.
- Storage Temperature: -1040.
- Storage Humidity: 75% RH.
- Avoid storage in environments with corrosive gases and direct sunlight.
- Reseal packaging after opening.
External Dimensions (Unit: mm)
| No. | Name | Material Specification | Quantity | Remarks |
|---|---|---|---|---|
| 1 | Component | NTC Thermistor | 1 | |
| 2 | Outer Shell | Glass | 1 | |
| 3 | Lead Wire | 0.50.05 Tinned Steel Wire | 2 |
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
2304140030_Nanjing-Shiheng-Elec-MF58-103F3950_C123393.pdf
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