1641R-474J

DC Resistance (DCR):	9.5 Ohm Max
Height - Seated (Max):	--
Size / Dimension:	0.162" Dia x 0.410" L (4.11mm x 10.41mm)
Supplier Device Package:	--
Package / Case:	Axial
Mounting Type:	Through Hole
Inductance Frequency - Test:	790kHz
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	5.7MHz
Q @ Freq:	60 @ 790kHz
Series:	1641R
Shielding:	Shielded
Current - Saturation:	58mA
Current Rating:	94mA
Tolerance:	±5%
Inductance:	470µH
Material - Core:	Ferrite
Type:	Molded
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed inductors, sometimes known simply as “saturable reactors”, are passive two-terminal electronic components used in electrical circuits to create a specific amount of electrical current. These devices are primarily used for the purpose of regulating or controlling the electrical current in a system or circuit.The 1641R-474J is a type of fixed inductor, and it is primarily used in circuits for providing fixed current impedance in applications such as electronic load switching, DC-DC converters, power line noise filtering, and current pulse shaping. The device can also be used to provide current limiting in switching regulator circuits.The 1641R-474J is specifically designed to provide a moderate amount of current resistance and power handling, with a maximum output current rating of 20 Amps at 15 volts. Its operating frequency range is between DC to 20MHz, while its rise time and voltage rating depend on the size of the internal core. The device is composed of a high performance ferrite core, a coil of enameled wire, and a molded case.The working principle of the 1641R-474J is based on the saturated cores of the inductors. This means that when an electrical current is applied to the device, the core becomes magnetically saturated with a fixed amount of magnetic flux. This creates a fixed output impedance that limits the amount of current to a specific amount. Thus, the core of the 1641R-474J keeps its magnetic properties constant and this ensures a stable electrical current output.The main advantage of the 1641R-474J fixed inductor is its reliability and small size, which makes it an ideal choice for applications requiring an efficient and cost-effective current limiting device. Additionally, the device has a low resistance and fast rise time, making it a very useful choice for applications requiring fast current operation.In conclusion, the 1641R-474J is a type of fixed inductor that is used to provide fixed current impedance in electronic load switching, DC-DC converters, power line noise filtering, and current pulse shaping applications. It is composed of a high performance ferrite core, a coil of enameled wire, and a molded case, and its operating principle is based on a saturated core. The device is relatively small and efficient, and its advantages include its reliable performance and fast rise time.

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