ER1641-432JS

DC Resistance (DCR):	550 mOhm 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:	7.9MHz
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	70MHz
Q @ Freq:	44 @ 7.9MHz
Series:	ER1641
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	380mA
Tolerance:	±5%
Inductance:	4.3µH
Material - Core:	Iron
Type:	Molded
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ER1641-432JS Fixed Inductors

Fixed inductors, sometimes referred to as fixed coils or Chokes, are typically composed of a few turns of wire wrapped around a magnetic core or without a core. It has a wide range of applications and is commonly used in signal conditioning, switching power supplies, etc. ER1641-432JS fixed inductors specifically are used in a variety of applications that require signal filtering or regulation of current at frequencies up to 1MHz and can handle currents up to 3.5 Amp.

General Specifications

The ER1641-432JS fixed inductor is in a 135 degree radial shape, with a maximum ALC of 1uH and a Irms at max ALC of 3.5 Amp. The electrical specifications include an SRF over 3.55MHz, DCR ranging from 0.064 ohm - 0.176 ohm, and an ALC tolerance of +- 20%. The range of operating temperature is -40°C to +85°C. It has a small footprint of 12.07mm x 6.35mm x 5.84mm, making it suitable for smaller electronic circuits.

Working Principle

A fixed inductor\'s main purpose is to restrict changes in current at a given frequency. It works by blocking the flow of alternating current and allowing direct current to flow. It will capacitively react to the alternating current, thereby creating a back EMF that opposes the change. The coil and core will build up a magnetic field, and then quickly collapse it, inducing an opposing voltage. This opposing voltage is known as inductance, and it depends on the number of turns within the coil.When a direct current is applied to the inductor, a magnetic field is created from the electric current that flows through the coil. This magnetic field interacts with the magnetic core to create a back emf, or inductance. The inductance of the fixed inductor is then dependent on the number of turns of the coil and the permeability of the core material.

Applications

The ER1641-432JS fixed inductor is best suited for electronic applications that require signal filtering or regulation of current. Due to its small size, it is suitable for applications such as DC-DC converters, battery management systems, DC motor controllers, and more.In addition, its high current and frequency capability make it suitable for applications such as radio frequency identification (RFID) systems, LCD backlighting, mobile phone switched-mode power supplies, etc. Moreover, its high inductance and low DCR allow it to be used as an EMI suppressor in a variety of electronic devices from laptop computers to televisions. In short, the ER1641-432JS Fixed Inductors are extremely versatile and can be used in a myriad of electronic applications.

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