Product Overview
The MF11 series compensation type NTC thermistors from Nanjing Shiheng Electronics Technology Co., Ltd. are designed for temperature measurement and control applications. These components offer precise resistance values and B-values, making them suitable for various industrial and electronic uses. They are characterized by their reliability, stable performance across a wide operating temperature range, and adherence to quality and environmental standards.
Product Attributes
- Brand: Shiheng Electronics
- Origin: Nanjing, China
- Product Series: MF11
- Type: Compensation Type NTC Thermistor
- Encapsulation Material: Epoxy Resin
- Lead Wire Material: Tinned Copper Clad Steel Wire
- Body Color: Green
- Marking Color: Black
- Certifications: ISO9001:2008, ISO14001:2004, ROSH, CQC, UL (E240991), TUV (R50245892)
Technical Specifications
| Item | Symbol | Test Condition | Unit | Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.1, Test Power 0.1mW | K | 50K5% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 430010% |
| 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 | |
| Maximum Rated Power | Pmax | / | mW | 450 |
| Lead Strength (Tensile) | / | 0.35| / | No visible damage, R25 R/R3% | |
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Tinning area 95% |
| Resistance to Soldering Heat | / | Solder pot temperature: 2605, Immersion depth 6mm from resistor body, Time 51 sec | / | R25 R/R3% |
| Steady State Damp Heat | / | Temperature: 402, Humidity: 932%, Time: 500 hours | / | R25 R/R3% |
| Temperature Cycling | / | -30 30min 25 5min 125 30min 25 5min, 5 cycles | / | R25 R/R3% |
| High Temperature Storage | / | Temperature: 1255, Time: 1000 hours | / | R25 R/R5% |
| Low Temperature Storage | / | Temperature: -305, Time: 1000 hours | / | R25 R/R5% |
3. Usage Precautions
- Application: Temperature measurement and control.
- Soldering: When using a soldering iron, the welding point should be at least 2mm away from the coating layer. Welding temperature should be below 360, and welding time should be less than 3 seconds.
- Storage Conditions: Storage temperature: -10 to 40; Storage humidity: 75% RH.
- Environment: Avoid storage in environments with corrosive gases and direct sunlight.
- Packaging: After opening the package, reseal for storage.
6. Product Model Explanation
MF11 503 J
- MF11: Compensation Type NTC Thermistor
- 503: Zero-power resistance at 25 is 50K
- J: Resistance Tolerance Code (J-5%, K-10%, M-20%)
5. Dimensions (Unit: mm)
(Dimensions not explicitly provided in a structured format in the source text, only implied by the context of a datasheet. No specific values or diagrams are available.)
Temperature vs. Resistance Table (Partial)
Model: MF11-503J
R25: 50K
B25/50: 4300K
| Temperature (C) | Resistance () | Temperature (C) | Resistance () | Temperature (C) | Resistance () | Temperature (C) | Resistance () | Temperature (C) | Resistance () | Temperature (C) | Resistance () |
|---|---|---|---|---|---|---|---|---|---|---|---|
| -30 | 1028.5 | -4 | 215.137 | 22 | 57.641 | 48 | 17.482 | 74 | 5.952 | 100 | 2.5 |
| -29 | 966.221 | -3 | 203.685 | 23 | 54.964 | 49 | 16.729 | 75 | 5.731 | 101 | 2.45 |
| -28 | 907.422 | -2 | 192.923 | 24 | 52.419 | 50 | 16.011 | 76 | 5.519 | 102 | 2.385 |
| -27 | 852.024 | -1 | 182.804 | 25 | 50 | 51 | 15.326 | 77 | 5.318 | 103 | 2.324 |
| -26 | 799.924 | 0 | 177 | 26 | 47.698 | 52 | 14.673 | 78 | 5.125 | 104 | 2.265 |
| -25 | 751 | 1 | 164.325 | 27 | 45.509 | 53 | 14.051 | 79 | 4.941 | 105 | 2.209 |
| -24 | 705.114 | 2 | 155.886 | 28 | 43.427 | 54 | 13.457 | 80 | 4.766 | 106 | 2.155 |
| -23 | 662.123 | 3 | 147.933 | 29 | 41.445 | 55 | 12.89 | 81 | 4.598 | 107 | 2.104 |
| -22 | 621.876 | 4 | 140.435 | 30 | 39.558 | 56 | 12.35 | 82 | 4.438 | 108 | 2.055 |
| -21 | 584.223 | 5 | 133.361 | 31 | 37.763 | 57 | 11.835 | 83 | 4.285 | 109 | 2.008 |
| -20 | 549.012 | 6 | 126.685 | 32 | 36.053 | 58 | 11.344 | 84 | 4.139 | 110 | 1.963 |
| -19 | 516.097 | 7 | 120.379 | 33 | 34.425 | 59 | 10.876 | 85 | 4 | 111 | 1.921 |
| -18 | 485.335 | 8 | 114.422 | 34 | 32.875 | 60 | 10.429 | 86 | 3.866 | 112 | 1.88 |
| -17 | 456.587 | 9 | 108.79 | 35 | 31.398 | 61 | 10.002 | 87 | 3.739 | 113 | 1.841 |
| -16 | 429.722 | 10 | 104.5 | 36 | 29.992 | 62 | 9.596 | 88 | 3.617 | 114 | 1.804 |
| -15 | 404.615 | 11 | 98.423 | 37 | 28.652 | 63 | 9.208 | 89 | 3.501 | 115 | 1.769 |
| -14 | 381.146 | 12 | 93.652 | 38 | 27.375 | 64 | 8.838 | 90 | 3.39 | 116 | 1.736 |
| -13 | 359.204 | 13 | 89.133 | 39 | 26.159 | 65 | 8.485 | 91 | 3.284 | 117 | 1.704 |
| -12 | 338.684 | 14 | 84.852 | 40 | 25 | 66 | 8.148 | 92 | 3.182 | 118 | 1.673 |
| -11 | 319.486 | 15 | 80.793 | 41 | 23.895 | 67 | 7.826 | 93 | 3.085 | 119 | 1.644 |
| -10 | 301.519 | 16 | 76.946 | 42 | 22.842 | 68 | 7.52 | 94 | 2.993 | 120 | 1.617 |
| -9 | 284.696 | 17 | 73.296 | 43 | 21.838 | 69 | 7.227 | 95 | 2.904 | 121 | 1.591 |
| -8 | 268.938 | 18 | 69.832 | 44 | 20.882 | 70 | 6.948 | 96 | 2.82 | 122 | 1.566 |
| -7 | 254.17 | 19 | 66.545 | 45 | 19.97 | 71 | 6.681 | 97 | 2.739 | 123 | 1.543 |
| -6 | 240.322 | 20 | 63.423 | 46 | 19.101 | 72 | 6.427 | 98 | 2.662 | 124 | 1.52 |
| -5 | 227.331 | 21 | 60.458 | 47 | 18.272 | 73 | 6.184 | 99 | 2.588 | 125 | 1.5 |
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
Website: Http://www.shiheng.com.cn
E-MAIL: sales@shiheng.com.cn
1810161311_Nanjing-Shiheng-Elec-MF11-503J_C123364.pdf
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