Product Overview
The MF52 Series is a range of bead-type, temperature-measuring NTC thermistors manufactured by Nanjing Shiheng Electronics Technology Co., Ltd. These precision NTC thermistors are designed for temperature measurement and control applications. They feature a bead construction and are available with various lead wire materials, including tinned copper-clad steel wire. The series offers high accuracy and reliability, making them suitable for demanding industrial environments.
Product Attributes
- Brand: Shiheng
- Origin: Nanjing, China
- Product Type: Bead-type NTC Thermistor
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC, Jiangsu High-tech Product
- Material (Encapsulation): Modified resin
- Material (Leads): Tinned copper-clad steel wire
- Color (Encapsulation): Black
- Color (Leads): Silver
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.05, Test Power 0.1mW | K | 50K3% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb), Tb=500.01 | K | 39501% |
| Dissipation Factor | In still air | mW/ | 2 | |
| Time Constant | In still air | sec | 7 | |
| Insulation Resistance | / | 100V/DC, 1min | M | 100 |
| Operating Temperature Range | / | / | -55125 | |
| Maximum Rated Power | Pmax | / | mW | 50 |
| Resistance-Temperature Characteristics | / | / | / | See Appendix 1 |
| Resistance Tolerance | / | / | / | See Appendix 2 |
| Lead Strength | R25 | Fixing the resistor end, Pulling force: 51 N, Time: 101 sec | / | No visible damage |
| Solderability | R25 | Temperature 2455, Time: 2-3 sec | / | Tinning Area 95% |
| Resistance to Soldering Heat | R25 | Solder pot temperature: 2605, Immersion depth 6mm from the body, Time: 51 sec | / | R/R 2% |
| Steady State Damp Heat | R25 | Temperature: 402, Humidity: 932%, Time: 500 hours | / | R/R 2% |
| Rapid Temperature Change | R25 | -55 30min 25 5min 125 30min 25 5min, Repeated 5 times | / | R/R 2% |
| High Temperature Storage | R25 | Temperature: 1255, Time: 1000 hours | / | R/R 2% |
| Low Temperature Storage | R25 | Temperature: -55, Time: 1000 hours | / | R/R 2% |
Model Description: MF52 A 503 H 3950 A1
- MF52: Bead-type precision NTC thermistor
- A: Lead wire type (Tinned copper-clad steel wire)
- 503: Zero-power resistance at 25 is 50K
- H: Resistance tolerance code (H-3%)
- 3950: B25/50 value is 3950K
- A1: Small bead
Usage Precautions
- Purpose: Temperature measurement and control.
- Avoid self-heating due to current flow through the thermistor chip, which can cause measurement errors.
- When soldering with an iron, maintain a distance of at least 2mm 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.
- Avoid storage in environments with corrosive gases or direct sunlight.
- Reseal packaging after opening for storage.
External Dimensions (Unit: mm)
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Contact Information
Tel: 025-52121868
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing City, China
Fax: 025-52122373
Email: sales@shiheng.com.cn
Postal Code: 211121
Website: Http://www.shiheng.com.cn
1810161324_Nanjing-Shiheng-Elec-MF52A503H3950-A1-_C123380.pdf
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