38S252C Inductors, Coils, Chokes

DC Resistance (DCR):	9.7 mOhm Max
Height - Seated (Max):	0.220" (5.60mm)
Size / Dimension:	0.409" L x 0.409" W (10.40mm x 10.40mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 130°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	3800
Shielding:	Unshielded
Current - Saturation:	12A
Current Rating:	7.2A
Tolerance:	±20%
Inductance:	2.5µH
Material - Core:	--
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

A fixed inductor, also known as an inductor coil, is a crucial electronic component in a variety of electronic devices. 38S252C is one type of fixed inductor containing a non-adjustable wire winding to generate an electromagnetic field that stores energy. It’s used as an ac filter, power supply circuit, weak current, telecommunication circuits, etc. Different applications require different parameters like inductance, resistance and current, therefore 38S252C has been widely used in various applications and installations.

Application Field

38S252C is a type of fixed inductor whose core component is made of MnZn ferrite. Thanks to its good high frequency characteristics, it is widely used in weak current and telecommunication circuits. Also, 38S252C can eliminate or reduce the noise in radio wiring systems as it can filter out the unnecessary frequency generated in the circuit.Besides, its wide inductance range make it ideal for various applications like the transformer for power supply, Radio Frequency (RF) choke, common mode filters, power supply filter, low pass filter, and other inductor components.

Working Principle

Fixed inductors works by storing energy in its magnetic field, thus are also known as choke coil. As shown in the figure, current will flow through the inductor and builds up a magnetic field around it. When current flows in the opposite direction, the magnetic field collapses, temporarily storing the energy as an electric field. This electric field is then released back into the circuit generating a reverse flow of electricity.

Figure 1: Inductor Working Principle

When 38S252C is used as an ac filter in a power circuit, the stray EM field generated in the circuit will be attenuated by 38S252C. The current will pass through the inductor and the capacitance inside the inductor will help filter out the excessive frequency, achieving the goal of removing noise in a circuit.

Conclusion

38S252C is a type of fixed inductor used in various application and installations due to its wide range of inductance and resistance. It works through storing energy in its magnetic field and then releasing them when current flows in the opposite direction. Thanks to its good high frequency characteristics, 38S252C is widely used in weak current and telecommunication circuits, as well as power circuits for removing noise.

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