Product Overview
The MF11 series is a compensated NTC thermistor manufactured by Nanjing Shiheng Electronics Co., Ltd. Designed for temperature measurement and control, these thermistors offer reliable performance in a wide operating temperature range of -30C to 125C. They are constructed with epoxy resin encapsulation, tinned copper-clad steel lead wires, and are typically green in body color with black identification.
Product Attributes
- Brand: Shiheng Electronics
- Origin: Nanjing, China
- Encapsulation Material: Epoxy Resin
- Lead Wire Material: Tinned Copper-Clad Steel
- Body Color: Green
- Identification Color: Black
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, ROSH, CQC, UL (E240991), TUV (R50245892)
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.1, Test Power 0.1mW | K | 470K5% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 475010% |
| Dissipation Factor | In still air | mW/ | Approx. 4.5 | |
| Time Constant | In still air | sec | Approx. 20 | |
| Insulation Resistance | / | 1000V/DC, 1min | M | 500 |
| Operating Temperature Range | / | / | -30 ~ 125 | |
| Max. Rated Power | Pmax | / | mW | 450 |
| Lead Strength (Tensile) | / | 0.35| / | No visible damage, R25 R/R 3% | |
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Tinning area 95% |
| Resistance to Soldering Heat | / | Pot temperature: 2605, Immersion depth 6mm from body, Time 51 sec | / | R25 R/R 3% |
| Steady State Damp Heat | / | Temperature: 402, Humidity: 932%, Time: 500 hours | / | R25 R/R 3% |
| Temperature Cycling | / | -30 30min 25 5min 125 30min 25 5min, Repeated 5 times | / | R25 R/R 3% |
| High Temperature Storage | / | Temperature: 1255, Time: 1000 hours | / | R25 R/R 5% |
| Low Temperature Storage | / | Temperature: -305, Time: 1000 hours | / | R25 R/R 5% |
Product Model Description
MF11-474J
- MF11: Compensated NTC Thermistor
- 474: Zero-power resistance at 25 is 470K
- J: Resistance tolerance code (J-5%)
Usage Precautions
- Application: Temperature measurement and control.
- Soldering: When using a soldering iron, maintain a distance of at least 2mm from the coating layer. Welding temperature should be below 360, and welding time less than 3 seconds.
- Storage Temperature: -10 ~ 40.
- Storage Humidity: 75% RH.
- Environment: Avoid storage in environments with corrosive gases and direct sunlight.
- Packaging: Reseal after opening.
1810161311_Nanjing-Shiheng-Elec-MF11-474J_C123369.pdf
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