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Specifications
Resistance @ 25℃:
100kΩ
Power(Watts):
50mW
Pitch:
1.7mm
Operating Temperature:
-55℃~125℃
Tolerance:
±1%
B Constant (25℃/100℃):
-
Steady State Current (Max):
-
Thermal Time Constant:
7s
B Constant (25℃/85℃):
4035K
B Constant (25℃/75℃):
-
B Constant (25℃/50℃):
3950K
B Constant Tolerance:
±1%
Mfr. Part #:
MF52A104F3950 (A1)
Package:
Through Hole,P=1.7mm
Key Attributes
Model Number:
MF52A104F3950 (A1)
Product Description
Product Overview
The MF52 series of bead-type NTC thermistors from Nanjing Shiheng Electronics Technology Co., Ltd. are designed for temperature measurement and control applications. These precision NTC thermistors offer reliable performance with a wide operating temperature range of -55 to 125 and a maximum rated power of 50mW. They are manufactured with a modified resin encapsulation and feature tinned copper-clad steel leads for robust connectivity. The product is certified under ISO9001, ISO14001, and UL 1434, ensuring quality and environmental compliance.
Product Attributes
- Brand: Nanjing Shiheng Electronics Technology Co., Ltd.
- Origin: China
- Product Type: Bead-type NTC Thermistor
- Encapsulation Material: Modified Resin
- Lead Material: Tinned Copper-Clad Steel
- Certifications: ISO9001:2008, ISO14001:2004, ROHS, CQC, Jiangsu High-tech Product, UL 1434 (File # E240991)
Technical Specifications
| Item | Symbol | Test Condition | Unit | Performance Requirement |
|---|---|---|---|---|
| Zero-power resistance at 25 | R25 | Ta=250.05, Test Power 0.1mW | K | 100K1% |
| B Value (25/50) | 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 Strength | R25 | Fixed resistor end, Tension: 51 N, Time: 101 sec | / | No visible damage, R/R2% |
| Solderability | / | Temperature 2455, Time 2-3 sec | / | Wetted area 95% |
| Resistance to Soldering Heat | R25 | Solder pot temperature: 2605, Immersion depth 6mm from resistor body, Time 51 sec | / | R/R2% |
| Steady State Damp Heat | R25 | Temperature: 402, Humidity: 932%, Time: 500 hours | / | R/R2% |
| Rapid Temperature Change | R25 | -55 30min 25 5min 125 30min 25 5min, 5 cycles | / | R/R2% |
| High Temperature Storage | R25 | Temperature: 1255, Time: 1000 hours | / | R/R2% |
| Low Temperature Storage | R25 | Temperature: -55, Time: 1000 hours | / | R/R2% |
Product Model Description
MF52 A1 104 F 3950
- MF52: Bead-type precision NTC thermistor
- A1: Leads are tinned copper-clad steel
- 104: Zero-power resistance at 25 is 100K
- F: Resistance tolerance code (F-1%)
- 3950: B25/50 value is 3950K
Dimensions
(Unit: mm)
| No. | Name | Material Specification | Quantity | Remarks |
|---|---|---|---|---|
| 1 | Element | NTC Thermistor (Chip) | 1 | / |
| 2 | Encapsulation | Modified resin | 1 | Black |
| 3 | Lead wire | Tinned copper-clad steel wire | 2 | Silver |
Usage Precautions
- Application: Temperature measurement and control.
- Avoid current flow through the thermistor chip that causes self-heating and measurement errors.
- When soldering with a soldering iron, the welding point should be at least 2mm away from the coating layer. Welding temperature should be below 300, and welding time should be less than 3 seconds.
- Storage Temperature: -10 ~ 40.
- Storage Humidity: 75% RH.
- Avoid storage in environments with corrosive gases and direct sunlight.
- Reseal packaging after opening.
1810170712_Nanjing-Shiheng-Elec-MF52A104F3950--A1_C13424.pdf
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