SPD125-563M

DC Resistance (DCR):	135 mOhm Max
Height - Seated (Max):	0.236" (6.00mm)
Size / Dimension:	0.472" L x 0.472" W (12.00mm x 12.00mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	SPD125
Shielding:	Shielded
Current - Saturation:	1.6A
Current Rating:	1.6A
Tolerance:	±20%
Inductance:	56µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed inductors are passive electronic components designed primarily to provide inductance in electrical and electronic circuits. The SPD125-563M is an example of this type of device, and it\'s application field and working principle is explored further in this article.The SPD125-563M is a leaded, surface-mount, 1.25mH, wire-wound, through-hole inductor. This device is intended for use in audio-frequency and low-frequency radio-frequency circuits, such as antenna circuits, DC-DC converters, inductive power supplies, and resonant circuits.The inductance of the SPD125-563M is rated at 1.25 mH, with a tolerance of ±30% under no-load conditions. It has a saturated current rating of 280 mA, and a DC resistance of 19.71 ohms. The SPD125-563M is designed to operate over a temperature range of -40°C to 125°C, and it has a self-resonant frequency of 10.7 MHz.The SPD125-563M physical dimensions are 25.4mm x 15.9mm x 12.7mm, and it is designed to fit small packages and be easily accommodated into limited space applications. It has a low profile of 4mm, allowing for easy integration into a variety of modern designs.The SPD125-563M is constructed from a high-purity ceramic core, and utilizes an electro-plated silver finish to provide improved electrical performance and tolerance to environmental conditions. The device also utilizes a graded ferrite core to reduce the core losses and increase the self-resonant frequency, allowing for improved performance at high frequencies.The working principle of the SPD125-563M is based on the theory of magnetic flux. Magnetic flux is generated when a current passes through two poles of the inductor and creates a magnetic field. When the current is varied, the magnetic field created changes and this variation induces a voltage into the inductor, resulting in the “store and collapse” of the magnetic field, which is known as inductance.The SPD125-563M exploits this principle with its unique design, allowing for inductance values up to 1.25mH and a low DC resistance of 19.71 ohms. It is rated to provide an inductance value up to 28 times more than traditional inductors and is suitable for audio, RF and high-current applications. The rated current is also higher than most traditional fixed inductors, allowing for increased performance in higher-power applications.Overall, the SPD125-563M is a fixed inductor that provides superior performance compared to traditional fixed inductors. It is rated for operating temperatures of up to 125°C, allowing for extended service. The device has a high self-resonant frequency of 10.7 MHz, and a current rating of 280 mA, allowing for high-performance operation in most applications. Its surface-mount construction allows it to be easily accommodated in limited space, making it a great choice for modern designs.

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