1）Good saturation characteristics.
2）Surface-mounted inductors with high current ratings..
3）Low impedance minimizes power loss.
4）Reel packaging for automatic insertion machines.
Applications:
Suitable for liquid crystal driver circuits (DC-DC conversion) such as: notebook computers; personal computers; convenient terminal equipment; game cards and other types of products.
HPQ Product Features:
1）Good saturation characteristics
2）Surface-mounted inductors with high current ratings.
3）Low impedance minimizes power loss
4）Reel packaging for automatic insertion machines
Applications: for video recorders; OA instruments; LCD TVs; notebook computers; small communication devices; DC/DC converters.
Characterization of wirewound inductors:
1)Suitable for power supply circuits
2）Wide range of sensitivities：0.12uH-560uH
3）Surface adhesion type
4）Suitable for general welding and rewelding
5）Appearance and dimensions comply with EIA standards
6）Different sizes available
7）Good solderability and heat resistance
Applicable to: notebook computers; digital televisions; digital projectors; list machines; hard disk drives; personal computers and other general consumer and computer products.
Ferrite Bead Characteristics
1）Closed magnetic circuit structure for high density installation and avoiding interference.
2）Monolithic construction for high reliability.
3）Electrodes with low DC resistance structure to avoid waste of power dissipation.
4）Highly rated up to 6 amps.
Applications:
Personal computers; communications equipment; digital telephones; electronic game consoles; cathode ray tubes; hard disk drive cellular telephones; personal digital assistants; lists; high-current direct-current circuits and computer peripherals.
Power Inductors with Surface-mounted Cores
1）Excellent solderability and high-temperature heat resistance
2）Excellent sectional strength structure
3）Reel packaging can be used for automatic insertion machines
Applications:
1）VCR；Office automation equipment; LCD TV sets; Notebook computers; DC-DC rectifiers; DC-AC converters and other power supplies.
Shielded Chip Power Inductors HPQ Series
Characteristics:
1）Good saturation characteristics
2）Surface-mounted inductors with high rated currents.
3）Low resistance minimizes power loss
4）Reel packaging for custom insert machines
Applications:
Ideal for DC to DC rectification applications on power lines in hard disk drives; notebook computers and other electronic equipment.
The following sections are for inductors and beads respectively:
Introduction to the role of inductors:
1)Inductors are energy storage elements, while magnetic beads are energy conversion (consumption) devices.
2)Inductors focus on suppressing conducted interference.
3)Inductor is a kind of energy storage element, used in lc oscillation circuit, low and medium frequency filter circuit, etc., its application frequency range rarely exceeds 50mhz.
4)Inductors are generally used for circuit matching and signal quality control. General ground connection and power supply connection.
5)Magnetic beads are energy converting (consuming) devices
6)Magnetic beads are mostly used in signaling circuits for emc countermeasures
7)Magnetic beads are mainly used to suppress electromagnetic radiation interference
8)Magnetic beads are used to absorb UHF signals, such as some rf circuits, pll, oscillator circuits, including UHF memory circuits (ddr sdram, rambus, etc.) need to add magnetic beads in the power input portion.
9)Use a magnetic bead where analog and digital ground are combined. Use magnetic beads for signal lines as well.
The size of the bead (or rather the characteristic curve of the bead) depends on the frequency of the interference wave that the bead is required to absorb. A bead is a high-frequency resistor, with low resistance to DC and high resistance to high frequencies. For example, 1000r@100mhz means 1000 ohms for a 100m frequency signal. Because the unit of the bead is in accordance with the impedance it produces at a certain frequency to nominal, the unit of impedance is also ohm. The datasheet of a magnetic bead is usually accompanied by a graph of the characteristics of frequency and impedance. It is generally standardized to 100mhz, for example, 2012b601, which means that the impedance of a magnetic bead at 100mhz is 600 ohms.
HCB Type Chip Beads
A- Closed magnetic circuit structure for high density installation and interference avoidance
B- Monolithic construction for high reliability
C- Electrodes with low DC resistance structure
D- Avoids power consumption and waste
Applications:
Personal computers; communications equipment; digital telephones; electronic games; cathode ray tubes; hard disk drives; cellular telephones; personal digital assistants; lists; high-current direct-current circuits and other computer peripherals.