Nanjing Shiheng Elec MF52A104J3950 A1 temperature sensing bead type thermistor with ISO certification
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Product Description
Product Overview
The Nanjing Shiheng Electronics Technology Co., Ltd. MF52 series is a bead-type, temperature-sensing NTC thermistor designed for temperature measurement and control applications. These thermistors offer precise temperature sensing capabilities and are suitable for various industrial and electronic uses. The product is manufactured by Nanjing Shiheng Electronics Technology Co., Ltd. and adheres to strict quality and environmental management systems.
Product Attributes
- Brand: Nanjing Shiheng
- Origin: China
- Product Type: Bead-type Temperature Sensing NTC Thermistor
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, ROHS, CQC, Jiangsu High-tech Product, UL 1434 (File # E240991)
- Encapsulation Material: Modified Resin
- Lead Wire Material: Tinned Copper Clad Steel Wire
- Lead Wire Color: Silver
- Body Color: Black
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power Resistance at 25 | R25 | Ta=250.05, Test Power 0.1mw | K | 100K5% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb), Tb=500.01 | K | 39501% |
| Dissipation Factor | Still air | mW/ | 2 | |
| Time Constant | Still air | sec | 7 | |
| Insulation Resistance | / | 100V/DC, 1min | M | 100 |
| Operating Temperature Range | / | / | -55125 | |
| Maximum Rated Power | Pmax | / | mW | 50 |
| Lead Wire Strength | / | 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 | / | Pot temperature: 2605, Immersion depth 6mm from resistor body, Time 51 sec | / | R25 R/R2% |
| Stable Damp Heat | / | Temperature: 402, Humidity: 932%, Time: 500 hours | / | R25 R/R2% |
| Temperature Rapid Change | / | -55 30min 25 5min 125 30min 25 5min, 5 cycles | / | R25 R/R2% |
| High Temperature Storage | / | Temperature: 1255, Time: 1000 hours | / | R25 R/R2% |
| Low Temperature Storage | / | Temperature: -55, Time: 1000 hours | / | R25 R/R2% |
Product Model Explanation: MF52 A 104 J 3950 A1
- MF52: Bead-type Precision NTC Thermistor
- A: Lead wire is Tinned Copper Clad Steel Wire
- 104: Zero-power Resistance at 25 is 100K
- J: Resistance Tolerance Code (J-5%)
- 3950: B25/50 Value (3950K)
- A1: Small Head
Dimensions (Unit: mm)
(Diagram or table for dimensions would typically be here, but is not provided in the source text for direct extraction.)
Usage Precautions
- Application: Temperature measurement and control.
- Measurement Error: Avoid current flowing through the thermistor chip causing self-heating and measurement errors.
- Soldering: When soldering with an iron, the soldering point should be at least 2mm away from the coating layer. Soldering temperature should be below 300, and soldering time less than 3 seconds.
- Storage Temperature: -10 to 40.
- Storage Humidity: 75% RH.
- Environment: Avoid storage in environments with corrosive gases or direct sunlight.
- Packaging: Reseal packaging after opening.
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