DC Resistance (DCR):	25 mOhm
Height - Seated (Max):	0.177" (4.50mm)
Size / Dimension:	0.315" L x 0.315" W (8.00mm x 8.00mm)
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	AEC-Q200
Frequency - Self Resonant:	29MHz
Q @ Freq:	15 @ 1MHz
Series:	SRN8040TA
Shielding:	Semi-Shielded
Current - Saturation:	5.6A
Current Rating:	5.1A
Tolerance:	±20%
Inductance:	6.8µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors and SRN8040TA-6R8M Application Field and Working Principle

Inductors are electronic components that store electrical energy and oppose any change in current. They are usually composed of a wire wound around a core made of ferromagnetic material such as iron or steel, air or ferrite. Inductors are also commonly known as coils, chokes, magnets or solenoids.Fixed inductors are different from variable inductors in that their inductance is fixed. Fixed inductors are commonly categorized into two classes, namely single-layer inductors (also known as fixed inductors) and multi-layer inductors (also known as SMD inductors). They are used in many applications, such as power supplies, linear regulators, PLL circuits, transmitting circuits and switching power supplies.A specific type of single-layer fixed inductor is the SRN8040TA-6R8M. This inductor is usually constructed with an iron core and a ferrite outer layer. It has a rated inductance of 8.2 μH and a rated current of 7.2 Amps. It has a maximum DC resistance of 0.036 Ω and a temperature coefficient of 0.5%.The application field of the SRN8040TA-6R8M is wide, ranging from general consumer electronics to medical grade products. It can be used in computers, gaming consoles, control boards, audio and video players, etc.The working principle of the SRN8040TA-6R8M can be understood by examining its construction. When a voltage is applied to the inductor, the iron core and ferrite outer layers act together like an electromagnet, forming a magnetic field around it. When the current increases or decreases, a back emf is generated in the inductor, opposing the change in current. This back emf helps to maintain the current at a constant level. It effectively stores energy in the form of a magnetic field and releases it when the current decreases.The operating frequency range of the SRN8040TA-6R8M is 1.6MHz to 10MHz. At frequencies lower than 1.6MHz, the inductance is decreased, leading to a decrease in the operating efficiency of the inductor. At frequencies higher than 10MHz, the inductance increases, leading to an increase in operating efficiency.To sum up, the SRN8040TA-6R8M is a single-layer fixed inductor with a wide range of applications and operating frequencies. Its construction allows it to store energy in the form of a magnetic field and release it when the current decreases. This makes it an ideal choice for manufacturers of electronic products.

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