PM0805H-331NJ

DC Resistance (DCR):	--
Height - Seated (Max):	0.049" (1.25mm)
Size / Dimension:	0.079" L x 0.049" W (2.00mm x 1.25mm)
Supplier Device Package:	0805 (2012 Metric)
Package / Case:	0805 (2012 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	50MHz
Operating Temperature:	-25°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	PM0805H
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	300mA
Tolerance:	±5%
Inductance:	3.3µH
Material - Core:	Ceramic
Type:	Multilayer
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

Fixed Inductors are electronic components that can store energy in the form of a magnetic field. These inductors are commonly used for filtering frequencies in power management applications and providing an alternative for circuit boards. PM0805H-331NJ is a type of small-form-factor fixed inductor. It provides a simple way to add cost effective, low-resistance passive inductive components to any design.

Features

The PM0805H-331NJ has an inductance range of 0.33 μH to 4.7 μH, with a DCR max of 0.036 ohms. Other features such as a rated current of 1.07 A, a temperature range of -40°C to +125°C and RoHS, Halogen Free compliance, ensure it can interface with an extensive range of applications. It has a variety of surface mount options to choose from, allowing it to be mounted to any circuit board.

Applications

PM0805H-331NJ fixed inductors offer a broad range of advantages and are suitable for a wide variety of applications. As they are small in size, PM0805H-331NJ fixed inductors are suitable for small form factor designs, and thus can be used in applications where size and space are an important consideration.For example, the PM0805H-331NJ is suitable for use in power management and filter circuits, including DC-DC converters and LED drivers. They are also used in automotive DC-DC converters, switching converters, Bluetooth Low Energy (BLE) solutions, audio equipment, and medical devices.

Design & Working Principle

The PM0805H-331NJ uses a flat winding technology, which increases the available surface area and thus improves the efficiency of the inductor. The flat winding also reduces the magnetic flux leakage, which in turn increases the inductance value. The design of the PM0805H-331NJ utilizes a magnetic core, which is wrapped in copper wire and encased in an epoxy resin. The copper wire forms a conductor loop, and when a current is applied, it generates an electromagnetic field. This field captures and stores energy, which is released by the inductor when the current decreases. This cycle is repeated continuously, helping to filter frequencies and providing a stable current over a sustained period of time.

Conclusion

PM0805H-331NJ fixed inductors are a great choice for cost effective, low-resistance passive inductive components in a variety of applications. With its small size, wide temperature range, and RoHS and Halogen Free compliance, this type of inductor provides an ideal solution for space-limited and mission critical applications. Its flat winding technology increases the available surface area, which helps increase the efficiency of the inductor, reduce the magnetic flux leakage, and thus increases the inductance value. The design also helps to create a sustained current and filter frequencies, thus ensuring reliability and stability.

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