SRP1238A-100M Inductors, Coils, Chokes

DC Resistance (DCR):	34 mOhm Max
Height - Seated (Max):	0.138" (3.50mm)
Size / Dimension:	0.531" L x 0.492" W (13.50mm x 12.50mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 150°C
Ratings:	AEC-Q200
Frequency - Self Resonant:	11MHz
Q @ Freq:	20 @ 100kHz
Series:	SRP1238A
Shielding:	Shielded
Current - Saturation:	14A
Current Rating:	7A
Tolerance:	±20%
Inductance:	10µH
Material - Core:	Carbonyl Powder
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Inductors are usually classified as fixed inductors, variable inductors and transmission line inductors and other types. Fixed inductors usually refer to inductors which cannot be adjusted in physical parameters, and can be further divided into several categories according to its structure and function. SRP1238A-100M belongs to the category of fixed inductors. This paper will discuss its application field and working principle.The SRP1238A-100M is a type of radial leaded inductor, measuring 3.2*7.7mm with a 100MHZ SRF rating and a maximum DCR of 0.05ohms. It’s suitable for use in wireless base stations and other high-end consumer and professional audio applications.The SRP 1238A-100M utilizes magnetic cores of high permeability metal alloy, usually ferrite. The cores results in higher inductance than wire-wound inductors. Compared with other fixed inductors, the SRP 1238A-100M is manufactured with a superior level of precision, making it highly reliable and accurate. It also has excellent heat resistance and performance. The component is utilized in DC sample and hold circuits, mini-datacom transformers, pulse transformers, and EMI filter applications. SRP1238A-100M is a fixed inductor, which means the inductance is determined by the physical structure of the component and it does not change. The working principle of the inductor is based on electromagnetic induction. When a DC current passes through the inductor, a magnetic field is generated between the winding and the core. This winding and core are then magnetically coupled, so when a changing current passes through the inductor, a voltage is generated due to the electromagnetic induction. The generated voltage is to act as an opposing force to the changing current to generate the inductance. In order to maintain the inductance, the current must flow in the same direction. The inductance is proportional to the number of turns and the area of the core. Therefore, increasing the number of turns or core area can increase the inductance.In conclusion, SRP1238A-100M is a type of fixed inductor with an SRF rating of 100MHz and a max DCR of 0.05ohms. It’s suitable for use in wireless base stations and other high-end consumer and professional audio applications. The SRP1238A-100M utilizes magnetic cores of high permeability metal alloy to achieve higher inductance than wire-wound inductors. Its working principle is based on electromagnetic induction, with the generated voltage to act as an opposing force against the changing current to generate inductance.

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