1210-221H

DC Resistance (DCR):	320 mOhm Max
Height - Seated (Max):	0.101" (2.57mm)
Size / Dimension:	0.128" L x 0.095" W (3.26mm x 2.41mm)
Supplier Device Package:	1210
Package / Case:	1210 (3225 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	25MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	350MHz
Q @ Freq:	30 @ 25MHz
Series:	1210
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	805mA
Tolerance:	±3%
Inductance:	220nH
Material - Core:	Iron
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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1210-221H Fixed InductorsFixed inductors, also known as choke coils, are devices used in electrical circuits to enhance the behavior of other electrical components. They are composed of stacked, magnetically permeable cores, usually ferrite or iron cores, surrounding an insulated wire, with the two windings, primary and secondary, connected together. Fixed inductors are commonly used for power filtering, smoothing, applications, and as part of a voltage-controlled system.The 1210-221H fixed inductor is specifically designed to protect power supplies against undesirable load fluctuations and transients. It is a wire-wound type inductor, with a primary winding of 7 turns on its core. The primary winding is DC coupled, which allows it to filter low frequency signals and provide improved stability and performance for power supply applications. In order to protect power supplies from undesirable load fluctuations, the 1210-221H fixed inductor has several advantages over conventional choke inductors. First, its core is constructed of powdered iron, which allows it to operate effectively even at high temperatures. Second, its unique winding design increases the total number of turns on the core, which provides a higher inductance and a better resistive profile. Third, its primary winding is DC coupled, which makes it well suited for power-filtering applications. The 1210-221H fixed inductor is also well suited for applications that require a low-noise filtering solution. It has a low hysteresis loss, which allows it to maintain a steady inductor current even in high-temperature applications. In addition, its low parasitic capacitance, combined with its high Q factor and low self-resonant frequency, result in reduced noise levels and improved harmonic rejection.Finally, the 1210-221H fixed inductor has a wide range of operating temperature, meaning it can be used in a variety of environmental conditions. Its rated temperature range is -55°C to 85°C, and its operating temperature range is -20°C to an ambient temperature of +105°C. This makes the inductor well suited for use in extreme temperatures, including both indoor and outdoor applications. In conclusion, the 1210-221H fixed inductor is an important component for controlling and protecting power supplies from undesirable load fluctuations and transients. Its higher Q-factor, low hysteresis loss, and wide operating temperature range make it particularly well-suited for applications requiring low-noise filtering solutions. This makes it an ideal choice for a variety of applications, from general-purpose power filtering to critical-use power conditioning applications.

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