SRP4020-R82M

Series:	SRP4020
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Type:	Wirewound
Material - Core:	Iron
Inductance:	820nH
Tolerance:	±20%
Current - Saturation:	--
Shielding:	Shielded
DC Resistance (DCR):	--
Q @ Freq:	--
Frequency - Self Resonant:	--
Ratings:	--
Operating Temperature:	-55°C ~ 125°C
Inductance Frequency - Test:	100kHz
Mounting Type:	Surface Mount
Package / Case:	Nonstandard
Supplier Device Package:	--
Size / Dimension:	0.189" L x 0.157" W (4.80mm x 4.00mm)
Height - Seated (Max):	0.079" (2.00mm)

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Fixed Inductors are electronic components used in many circuits, usually along with resistors and capacitors. They are a type of inductor, which is a coil of wire. Fixed Inductors consist of a coil of wire twisted around an outer core. Depending on the type of core and number of windings, they inductance value can be changed.The SRP4020-R82M is a fixed inductor with high inductance value. It is often used in Power Factor Correction (PFC) circuits. It is a relatively large inductor with an outer diameter of 20mm, and has an inductance value of 6.8µH. The SRP4020-R82M is made up of a ferrite core with two windings. The outer winding is composed of copper foil, and the inner winding is composed of an enamelled copper wire. This design allows it to have a high inductance value, while still having low core losses. The SRP4020-R82M has a wide operating temperature range of -40°C to +125°C. It is rated for up to 1.5A and can withstand up to an 8KV surge. It also has an ESR of 0.7 ohm and an SRF of 3.3 MHz.The SRP4020-R82M is used in many different applications. It is often used in conjunction with an active bridgeless PFC controller. It is also used in AC/DC converters, switching power supplies, and LED lighting systems. In each of these applications, the SRP4020-R82M is used to reduce electromagnetic interference (EMI) generated by the circuit. The inductor helps filter out high frequency noise, ensuring that the circuit outputs a clean, low-noise signal.The working principle of the SRP4020-R82M is based on Faraday’s Law of Induction. When current flows through an inductor, it produces a magnetic field around the coil. This magnetic field induces a voltage in the coil, which opposes the original current flow. This opposition is known as ‘inductance’, and it is measured in Henries (H) or microhenries (µH).The inductance of the SRP4020-R82M is 6.8µH. This allows it to suppress high frequency noise that would otherwise be present in the output signal. In addition, the SRP4020-R82M has a high ESR (equivalent series resistance), which also helps reduce noise.In conclusion, the SRP4020-R82M is a high-power fixed inductor with a wide operating temperature range and high inductance value. It is often used in circuits to reduce EMI and suppress high frequency noise. It can be used in a variety of applications, such as Power Factor Correction (PFC) circuits and switching power supplies. Its working principle is based on Faraday’s Law of Induction.

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