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Specifications
Resistance @ 25℃:
5kΩ
Power(Watts):
450mW
Pitch:
2.5mm
Operating Temperature:
-30℃~+125℃
Tolerance:
±5%
B Constant (25℃/100℃):
-
Steady State Current (Max):
-
Thermal Time Constant:
20s
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
3950K
B Constant Tolerance:
±10%
Mfr. Part #:
MF11 502J
Package:
Through Hole,P=2.5mm
Key Attributes
Model Number:
MF11 502J
Product Description
Product Overview
The MF11 series is a compensated NTC thermistor manufactured by Nanjing Shiheng Electronics Technology Co., Ltd. Designed for temperature measurement and control, these thermistors offer reliable performance across a wide operating temperature range. They are suitable for various industrial applications requiring accurate temperature sensing and regulation.
Product Attributes
- Brand: Shiheng
- Product Name: Compensated NTC Thermistor
- Model Series: MF11
- Origin: Nanjing, China
- Encapsulation Material: Epoxy Resin
- Lead Material: Tin-plated 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 | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.1, Test Power 0.1mW | K | 5K5% |
| B Value | B25/50 | B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb) | K | 395010% |
| Dissipation Factor | Still air | mW/ | Approx. 4.5 | |
| Time Constant | 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 (Pull) | / | 0.35| / | No visible damage; R25 R/R3% | |
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Tinning coverage 95% |
| Resistance to Soldering Heat | / | Solder pot temp: 2605, immersion depth 6mm from body, Time 51 sec | / | R25 R/R3% |
| Steady State Damp Heat | / | Temperature: 402, Humidity: 932%, Time: 500 hours | / | R25 R/R3% |
| Temperature Cycling | / | -30 30min25 5min125 30min25 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 soldering with a soldering iron, maintain a distance of at least 2mm from the coating layer. Soldering temperature should be below 360, and soldering 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: After opening, reseal and store properly.
6. Product Model Description
MF11-502J
- MF11: Compensated NTC Thermistor
- 502: Zero-power resistance at 25 is 5K.
- J: Resistance tolerance code (J: 5%, K: 10%, M: 20%).
Temperature Resistance Table (R25=5K, B25/50=3950K)
| Temperature (C) | Resistance () | Temperature (C) | Resistance () | Temperature (C) | Resistance () | Temperature (C) | Resistance () | Temperature (C) | Resistance () |
|---|---|---|---|---|---|---|---|---|---|
| -30 | 91.2 | -4 | 20.348 | 22 | 5.717 | 48 | 1.933 | 74 | 0.772 |
| -29 | 85.642 | -3 | 19.304 | 23 | 5.465 | 49 | 1.86 | 75 | 0.748 |
| -28 | 80.46 | -2 | 18.32 | 24 | 5.227 | 50 | 1.791 | 76 | 0.724 |
| -27 | 75.626 | -1 | 17.391 | 25 | 5 | 51 | 1.724 | 77 | 0.702 |
| -26 | 71.113 | 0 | 16.45 | 26 | 4.784 | 52 | 1.661 | 78 | 0.68 |
| -25 | 66.9 | 1 | 15.688 | 27 | 4.578 | 53 | 1.6 | 79 | 0.659 |
| -24 | 62.963 | 2 | 14.907 | 28 | 4.383 | 54 | 1.542 | 80 | 0.639 |
| -23 | 59.283 | 3 | 14.17 | 29 | 4.197 | 55 | 1.486 | 81 | 0.62 |
| -22 | 55.842 | 4 | 13.473 | 30 | 4.02 | 56 | 1.433 | 82 | 0.601 |
| -21 | 52.623 | 5 | 12.814 | 31 | 3.851 | 57 | 1.382 | 83 | 0.583 |
| -20 | 49.61 | 6 | 12.192 | 32 | 3.691 | 58 | 1.333 | 84 | 0.566 |
| -19 | 46.789 | 7 | 11.603 | 33 | 3.538 | 59 | 1.286 | 85 | 0.55 |
| -18 | 44.146 | 8 | 11.046 | 34 | 3.392 | 60 | 1.241 | 86 | 0.533 |
| -17 | 41.668 | 9 | 10.518 | 35 | 3.253 | 61 | 1.197 | 87 | 0.518 |
| -16 | 39.346 | 10 | 9.95 | 36 | 3.121 | 62 | 1.156 | 88 | 0.503 |
| -15 | 37.167 | 11 | 9.547 | 37 | 2.994 | 63 | 1.116 | 89 | 0.489 |
| -14 | 35.122 | 12 | 9.099 | 38 | 2.874 | 64 | 1.078 | 90 | 0.475 |
| -13 | 33.202 | 13 | 8.675 | 39 | 2.759 | 65 | 1.042 | 91 | 0.462 |
| -12 | 31.399 | 14 | 8.273 | 40 | 2.65 | 66 | 1.007 | 92 | 0.449 |
| -11 | 29.705 | 15 | 7.892 | 41 | 2.545 | 67 | 0.973 | 93 | 0.436 |
| -10 | 28.112 | 16 | 7.53 | 42 | 2.445 | 68 | 0.941 | 94 | 0.424 |
| -9 | 26.615 | 17 | 7.187 | 43 | 2.35 | 69 | 0.91 | 95 | 0.413 |
| -8 | 25.206 | 18 | 6.862 | 44 | 2.259 | 70 | 0.88 | 96 | 0.402 |
| -7 | 23.88 | 19 | 6.553 | 45 | 2.172 | 71 | 0.852 | 97 | 0.391 |
| -6 | 22.631 | 20 | 6.26 | 46 | 2.088 | 72 | 0.824 | 98 | 0.381 |
| -5 | 21.456 | 21 | 5.981 | 47 | 2.009 | 73 | 0.798 | 99 | 0.371 |
Contact Information:
Nanjing Shiheng Electronics Technology Co., Ltd.
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing, 211121, China
Tel: 025-52121868
Fax: 025-52122373
Email: sales@shiheng.com.cn
Website: http://www.shiheng.com.cn
1810161324_Nanjing-Shiheng-Elec-MF11-502J_C123356.pdf
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