Product Overview
The MF52 series are bead-type thermistor resistors manufactured by Nanjing Shiheng Electronics Co., Ltd. These NTC thermistors are designed for temperature measurement and control applications. They feature a compact, bead-shaped construction with a modified resin encapsulation and tinned copper-clad steel leads. The series offers precise resistance values and B values, with various accuracy levels and operating temperature ranges from -55 to 125.
Product Attributes
- Brand: Shiheng
- Origin: Nanjing, China
- Product Type: Bead-type Thermistor Resistor (NTC)
- Model Series: MF52
- Encapsulation Material: Modified Resin
- Lead Material: Tinned Copper-Clad Steel
- Lead Color: Silver
- Resin Color: Black
- Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, ROHS, CQC, Jiangsu High-tech Product, UL 1434 (File # E240991)
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=500.01 | 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 |
| Lead Strength | / | Pulling force: 51 N, Time: 101 sec | / | No visible damage; R25 R/R 2% |
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Wetted Area 95% |
| Resistance to Soldering Heat | / | Solder pot temperature: 2605, Immersion depth 6mm from the 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 125 30min 25 5min, 5 cycles | / | R25 R/R 2% |
| High Temperature Storage | / | Temperature: 1255, Time: 1000 hours | / | R25 R/R 2% |
| Low Temperature Storage | / | Temperature: -55, Time: 1000 hours | / | R25 R/R 2% |
| Part Number | Description |
|---|---|
| MF52 A 103 H3950(A1) | Bead-type Thermistor Resistor (UL:E240991) |
| Item | Name | Material/Specification | Quantity | Remarks |
|---|---|---|---|---|
| 1 | Component | NTC Thermistor | 1 | / |
| 2 | Encapsulation | Modified Resin | 1 | Black |
| 3 | Lead Wire | Tinned Copper-Clad Steel Wire | 2 | Silver |
Product Model Explanation: MF52 A1 103 H 3950 A1
- MF52: Bead-type Precision NTC Thermistor
- A1: Lead wire is tinned copper-clad steel wire
- 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
- A1: Small head
Usage Precautions:
- Purpose: Temperature measurement and control.
- Avoid current flowing through the thermistor chip causing self-heating and measurement errors.
- 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: -1040; Storage Humidity: 75% RH.
- Avoid storage in environments with corrosive gases and direct sunlight.
- Reseal and store after opening the package.
Contact Information:
Tel: 025-52121868
Fax: 025-52122373
Email: sales@shiheng.com.cn
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing, 211121, China
Website: Http://www.shiheng.com.cn
2412052036_Nanjing-Shiheng-Elec-MF52A103H3950--A1_C123377.pdf
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