High Current SMD Shielded Inductor LPM0402/0603 Series for Distributed Power

The LPM0402/0603 series shielded SMD power inductor features a composite structure and shielded design, offering the lowest DCR/μH in its package size and high-frequency response (up to 5.0MHz), effectively handling high transient current spikes without saturation.The composite structure significantly reduces audible noise. The package provides excellent moisture-proof, corrosion-proof, and environmental protection.It is widely used in PDA/laptops/desktops/servers, high-current POL converters, low-profile high-current power supplies, battery-powered devices, distributed power systems, and DC-DC converters for FPGA power supplies. It is an ideal choice for compact high-density power supply designs.

FEATURES:

• Shielded construction
• Frequency range up to 3.0-5.0 MHz
• Lowest DCR/μH
• Handles high transient current spikes without saturation
• Ultra low buzz noise, due to composite construction
• Encapsulated body offers improved environmental protection and moisture resistance.
• Higher dielectric withstanding voltage vs. IHLP
• Flame retardant encapsulant (UL 94 V-0)
• Corrosion resistant package
• Compliant to RoHS directive 2002/95/EC

APPLCATIONS:

• PDA/notebook/desktop/server applications
• High current POL converters
• Low profile, high current power supplies
• Battery powered devices
• DC/DC converters in distributed power systems
• DC/DC converter for Field Programmable Gate Array (FPGA)

NOTES:

• Test Frequency : 100KHz / 0.25Vdc
• Testing Instrument : L:HP4284A, CH11025,CH3302, CH1320, CH1320S LCR METER/Rdc:CH16502, Agilent33420A MICRO OHMMETER.
• Heat Rated Current (Irms) will cause the coil temperature rise approximately,△T=40℃ without core loss.
• Saturation Current (Isat) will cause L0 to drop approximately 20%
• The part temperature (ambient + temp rise) should not exceed 125℃ under worst case operating conditions. Circuit design, component, PCB trace size and thickness, airflow and other cooling provisions all affect the part temperature. Part temperature should be verified in the end application.
• Operating Temperature & Storage Temperature: -40℃ - +105℃.

Note: Product specifications can be customized.

FAQ

Q: How does the composite structure reduce audible noise?

A: The composite structure uses special core materials and filling processes to effectively reduce vibration caused by the magnetostrictive effect. This significantly reduces audible noise in the audible frequency range, making it especially suitable for noise-sensitive portable devices and consumer electronics applications.

Q: What are the advantages of the shielded structure?

A: The shielded structure uses a closed magnetic circuit design to confine magnetic flux inside the core. It effectively reduces leakage flux and electromagnetic interference to nearby sensitive circuits, improving system EMC performance.

Q: What is the significance of moisture-proof and corrosion-proof packaging?

A: The packaging provides excellent moisture-proof, corrosion-proof, and environmental protection. It ensures the inductor operates stably over the long term in harsh environments (high humidity, chemical contamination, etc.), improving product reliability and service life.

Q: How to apply for samples? What is the lead time?

A: You can submit a sample application through our website or email. Please provide your company information and target model. Samples are free of charge and will be shipped within 3-5 working days. Mass order lead time is generally 2-8 weeks.