electronic surge protection JK-ET JF72100D7MB5250F inrush current limiting thermistor with NTC feature
Product Overview
The JEW-3-048 C0 is an Inrush Current Limiting Negative Temperature Coefficient (NTC) Thermistor manufactured by Dongguan City Jiangkun (Jianerwei) Electronics Technology Co., Ltd. Designed for surge suppression, this component offers reliable performance in various electronic applications.
Product Attributes
- Brand: Jiangkun (Jianerwei)
- Origin: Dongguan City, China
- Product Name: Inrush Current Limiting Negative Temperature Coefficient Thermistor
- Model/Series: MF72 NTC 10D-7 F5*L25
- Product Code: JF72100D7MB5250F
- Wrapper Material: Phenolic Resin
- Coating Color: Black
- Lead Material: CP Wire (Tinned copper-clad steel wire)
- Marking Color: White Spray Code
- Storage Conditions: Temperature: -10+40, Humidity: 75%RH, Term: 12 months. Avoid corrosive/oxidizing gases, flammable/explosive gases, oil, water, chemical liquids, and direct sunlight.
- Packaging: Bagged (1000PCS/bag)
Technical Specifications
| Item | Symbol | Test Conditions | Parameter Standard | Unit | MF72 NTC 10D-7 F5*L25 |
| Zero Power Resistance at 25 | R25 | Ta=(250.01), Power0.01mw, Air Test | 1020% | 10 | |
| B Value | B25/50 | 260010% | K | 2600 | |
| Steady State Current | Imax | In still air at 252, with max steady state operating current applied | 1.2 | A | 1.2 |
| Dissipation Factor | Measured in still air at 252 | 10 | mw/ | 10 | |
| Time Constant | Measured in still air at 252 | 45 | Sec | 45 | |
| Withstand Voltage | 500VAC, 1min | No breakdown or flashover | No breakdown or flashover | ||
| Insulation Resistance | 500VDC, 1min | 500 | M | 500 | |
| Operating Temperature | -40~+160 | -40 to +160 | |||
| Max Allowable Capacitance | CT | 240VAC | 100 | uF | 100 |
Reliability Testing
| Test Item | Description | Performance Requirement |
| Durability at Room Temperature | Continuous application of max steady state current for 10005 hours at room temperature, followed by 12 hours recovery at 25. | R/R20%, no visible damage to appearance. |
| Resistance to Soldering Heat | Immersion of leads in 2605 tin liquid, 2mm from the body, for 51 Sec. | R/R20%, no visible damage to appearance. |
| Steady State Damp Heat | Storage at 402, 93+2/-3% RH for 504+24/-0 hours, followed by 1 hour in normal state. | R/R20%, no visible damage to appearance. |
| Lead Strength | Axial pull force applied to leads for 10Sec. (0.5mmd0.8mm: 10N; 0.8 mmd1.25mm: 20N) | No visible damage to appearance, R/R20%. |
| Rapid Temperature Change | 5 cycles of -40 (30min) -25 (5max) 150 (30min) -25 (5min). | R/R20%, no visible damage to appearance. |
| Maximum Allowable Capacitance | Application of maximum capacitance, intermittent closure for 50Ms, recovery for 5 times the duration, cycled 1000 times. | R/R20%, no visible damage to appearance. |
Soldering and Usage Conditions
1. Soldering temperature should be less than 360, at least 2mm away from the body, and the time should be as short as possible.
2. When cutting leads, ensure the shortest lead length is 6mm.
Storage Environment Conditions
1. Temperature: -10+40
2. Humidity: 75%RH
3. Term: 12 months (First-in/First-out)
4. Place: Avoid exposure to corrosive or deoxidizing gases, flammable and explosive gases, oil, water, chemical liquids, and direct sunlight, as these can lead to performance degradation or parameter drift.
5. Minimize opening of packages. Reseal immediately or store in a sealed container with a drying agent.
Warnings
Do not use this component under the following conditions, as it may result in performance degradation, component destruction, or fire:
- Exceeding Imax.
- Exceeding the rated temperature range.
- Inferior thermal dissipation (which can cause localized overheating and damage).
Recommended Soldering Conditions
Wave Soldering Curve: [Refer to diagram in source document]
Reflow Soldering Curve: [Refer to diagram in source document]
Soldering Iron Conditions:
- Temperature of soldering iron head: 360 (max)
- Soldering time: 3s (max)
- Solder head diameter: 3mm (max)
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