B57238S309M51 Allicdata Electronics
Allicdata Part #:

B57238S309M51-ND

Manufacturer Part#:

B57238S309M51

Price: $ 0.00
Product Category:

Circuit Protection

Manufacturer: EPCOS (TDK)
Short Description: ICL 3 OHM 20% 7.4A 16MM
More Detail: Inrush Current Limiter 3 Ohms ±20% 0.63" (16mm)
DataSheet: B57238S309M51 datasheetB57238S309M51 Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Series: --
Packaging: Tape & Reel (TR) 
Lead Free Status / RoHS Status: --
Part Status: Obsolete
Moisture Sensitivity Level (MSL): --
R @ 25°C: 3 Ohms
Tolerance: ±20%
Diameter: 0.63" (16mm)
Description

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Inrush Current Limiters (ICLs) are devices that prevent electrical equipment from experiencing an overload of power when powered up. The B57238S309M51 is one particular form of inrush current limiter designed by EPCOS for inductive loads.

Design of the B57238S309M51

The B57238S309M51 is designed to be a highly linear current limiter. In other words, it limits the range of incoming current by regulating both low and high values. This feature is important because it allows equipment to withstand starting transients, which are sudden changes in current, without damaging itself.

The device also houses a number of features that allow for the safe functioning of the product. For instance, the device utilizes an internal failsafe mechanism that prevents excessive current from flowing into the device. This failsafe feature is also designed to be reliable, and is capable of withstanding the effects of a wide range of starting transients.

The other feature that helps make the B57238S309M51 a reliable unit is its reverse polarity protection. This feature prevents any damage from occurring in case the device is improperly wired and the polarity is reversed.

Applications and Working Principle

The B57238S309M51 is designed for use in equipment that features an inductive load. An inductive load typically contains magnets and coils, such as transformers, electric motors, and generators. The device functions by limiting the surge in current when the equipment is powered up, which in turn prevents the equipment from experiencing an overload of power.

The working principle of the B57238S309M51 involves its two components, a resistor and a capacitor. This combination creates an LC circuit, which limits the current by converting the surge in energy into heat. This process is similar to how a fuse works, with the difference being that the B57238S309M51 has a much greater surge current threshold than a fuse.

Conclusion

The B57238S309M51 is a highly reliable inrush current limiter designed by EPCOS for inductive loads. Its failsafe feature and reverse polarity protection make it a safe and reliable unit for protecting against surge currents and power overloads. It is an ideal solution for a wide range of applications that require the protection of electrical equipment against power surges.

The specific data is subject to PDF, and the above content is for reference

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