SRR1240-221K Inductors, Coils, Chokes

DC Resistance (DCR):	660 mOhm Max
Height - Seated (Max):	0.177" (4.50mm)
Size / Dimension:	0.492" L x 0.492" W (12.50mm x 12.50mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	6.6MHz
Q @ Freq:	12 @ 796kHz
Series:	SRR1240
Shielding:	Shielded
Current - Saturation:	900mA
Current Rating:	920mA
Tolerance:	±10%
Inductance:	220µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors are electrical components used extensively in today’s electronics applications, and the SRR1240-221K is one of the most popular models. This device is characterized by a very low DC resistance and its ability to maintain its component characteristics regardless of high frequency applications. By utilizing this device, engineers can provide superior power, protection, and reliability.The SRR1240-221K is typically used in a range of applications including switched-mode power supplies (SMPS), loadings, and filtering. This type of inductor is characterized by low inductance, which makes it the ideal choice for higher frequency applications. Additionally, it offers a very low DC resistance, which helps reduce the current that may flow through it in a high frequency application. It also has a high self-resonant frequency (SRF), which is useful in calculating the performance parameters of inductive circuits.The SRR1240-221K has been designed to offer the best possible performance in both single-ended and differential applications. The device features a ceramic core and a winding configuration that enables it to deliver an optimal ratio of inductance to DC resistance. The high-side bias winding of the inductor helps to ensure maximum efficiency while the low side winding helps minimize the effect of parasitic capacitance on the inductor’s performance.When used in a single-ended configuration, the SRR1240-221K offers excellent performance in both unloaded and loaded applications. Its low winding configuration helps to reduce power losses due to winding resistance and gives the device the ability to handle low frequency signals. When used as part of a differential system, the inductor offers a very wide bandwidth for superior filtering characteristics and a low insertion loss.The SRR1240-221K is designed with an extra-large air gap to ensure the device has excellent thermal performance. This gap helps to increase the inductance-to-resistance ratio of the device, and can allow it to operate in temperature ranges up to +105°C. The device also has an extra shielding to minimize electromagnetic interference (EMI) and a copper bottom plate to provide additional thermal insulation.The SRR1240-221K offers an excellent combination of inductance and resistance to provide maximum performance in a broad range of applications. Its low resistance and high inductance make it the ideal choice for high frequency applications. Additionally, its copper bottom plate and shielding help to minimize interference from external sources. It is also specified for reliable performance in temperatures up to +105°C, making it a great choice for a variety of applications.

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