| Allicdata Part #: | B57237S0479M051-ND |
| Manufacturer Part#: |
B57237S0479M051 |
| Price: | $ 0.36 |
| Product Category: | Circuit Protection |
| Manufacturer: | EPCOS (TDK) |
| Short Description: | ICL 4.7 OHM 20% 5.1A 15MM |
| More Detail: | Inrush Current Limiter 4.7 Ohms ±20% 5.1A 0.59" (1... |
| DataSheet: |  B57237S0479M051 Datasheet/PDF |
| Quantity: | 1000 |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| 1 +: | $ 0.36000 |
| 10 +: | $ 0.34920 |
| 100 +: | $ 0.34200 |
| 1000 +: | $ 0.33480 |
| 10000 +: | $ 0.32400 |
Specifications
| Series: | -- |
| Packaging: | Tape & Reel (TR) |
| Lead Free Status / RoHS Status: | -- |
| Part Status: | Active |
| Moisture Sensitivity Level (MSL): | -- |
| R @ 25°C: | 4.7 Ohms |
| Tolerance: | ±20% |
| Current - Steady State Max: | 5.1A |
| Diameter: | 0.59" (15mm) |
| Lead Spacing: | 0.295" (7.50mm) |
| Approvals: | UL |
Description
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Inrush current limiters (ICL) are devices used in many applications, including electronics, commercial utility installations, and industrial power control systems. The B57237S0479M051 is a specific ICL product used to prevent large inrush currents in equipment protected by a fuse, due to momentary high power demand during the energisation phase of the circuit.
The Basics of Inrush Current Limitation
An ICL is designed to limit inrush current which is the surge of high current that flows in a circuit when it is first switched on. This inrush current can be higher than the normal operating current for a very short time and can damage or destroy delicate components. A ICL works by sensing the inrush current and limiting it by delaying it. It will then allow normal current flow after the initial surge has been dissipated, thus protecting the system components from the inrush current.How Does the B57237S0479M051 Work?
The B57237S0479M051 uses an active switching circuitry with two MOSFETs to limit the inrush current. When the circuit is turned on, the MOSFETs provide a low impedance path which limits the current to a predetermined level. The MOSFETs then switch off and the capacitor acts as a filter to provide a steady voltage to the load. The delay is also adjustable to suit different applications.Applications
The B57237S0479M051 ICL is used in power supplies, electronic equipment, motor control, industrial machines, and energy storage systems. It is capable of protecting loads up to 10A and is compatible with standard electrical components. It can be used in single phase or multi-phase applications, as well as in AC or DC systems.Advantages of the B57237S0479M051
The main advantage of the B57237S0479M051 ICL is its low cost, making it ideal for entry level applications. It is also small in size, lightweight, and energy efficient. It is easily integrated into existing power control systems due to its compatibility with standard electrical components. Additionally, it is very reliable and offers excellent protection for equipment.Conclusion
Inrush current limiters (ICL) are an essential component for protecting circuits and equipment from momentary high power demands during switching on. The B57237S0479M051 ICL is a specifically designed product to limit large inrush currents, thus protecting the system more effectively than a standard fuse. It is suitable for many applications, from entry level to high power systems, and offers excellent protection with low cost, size, weight, and energy consumption.The specific data is subject to PDF, and the above content is for reference
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