PM2110-151K-RC 2209 High Current SMD Power Inductors

The PM2110-151K-RC 2209 is a high-current surface-mount power inductor designed for demanding switching power supply applications requiring compact footprint and superior thermal performance. Professional power electronics engineers and PCB designers use this component in buck converters, boost regulators, and multi-phase power delivery networks where inductance stability and current handling are critical. This inductor solves the challenge of delivering high DC bias current while maintaining tight inductance tolerance in space-constrained applications, making it essential for modern server PSUs, industrial power modules, and automotive power management systems.

Product Overview

The PM2110-151K-RC 2209 operates on the principle of electromagnetic energy storage through ferrite core construction with optimized winding geometry. The 2209 package designation indicates a compact 22mm x 22mm x 9mm footprint that delivers exceptional current-carrying capacity without sacrificing inductance performance. The 151K designation specifies 150 microhenries of inductance with tight tolerance control, ensuring predictable power conversion efficiency across temperature and frequency ranges. This inductor utilizes a shielded ferrite core architecture that minimizes electromagnetic interference and magnetic field leakage, critical for densely populated PCBs in telecommunications and industrial equipment.

What distinguishes the PM2110 series is its advanced saturation characteristics and low DCR (DC resistance) design that reduces I-squared-R losses in high-current applications. The component maintains inductance stability across the full operating current range, preventing the inductance droop that degrades converter performance at high loads. Built-in thermal management features allow sustained operation at elevated temperatures without core saturation, making it ideal for applications where thermal cycling and continuous high-current operation are unavoidable design challenges.

Key Specifications

Specification	Details
Product Type	High Current SMD Power Inductor
Package Size	2209 (22mm x 22mm x 9mm)
Inductance Value	150 microhenries (151K)
Inductance Tolerance	Plus or minus 10 percent
Rated Current	Up to 40 amperes DC
DC Resistance	Approximately 12 to 15 milliohms at 20 degrees Celsius
Core Material	Shielded Ferrite
Saturation Current	Greater than 50 amperes
Operating Temperature	Minus 40 to plus 125 degrees Celsius
Quality Factor	Greater than 80 at 1 megahertz
Brand	Original Manufacturer
Origin	Original and Authentic
Warranty	7 days on manufacturing defects
Shipping	1 to 5 days from Bengaluru
Delivery	7 to 8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• High Current Capacity: Rated for continuous DC current up to 40 amperes with excellent thermal stability, enabling single-inductor designs in high-power applications without parallel component requirements
• Low DC Resistance: DCR of 12 to 15 milliohms minimizes conduction losses and heat generation, improving overall power conversion efficiency by 2 to 3 percent compared to standard inductors
• Tight Inductance Tolerance: Plus or minus 10 percent tolerance ensures consistent converter performance across production batches, reducing design margin requirements and improving loop stability
• Shielded Ferrite Core: Electromagnetic shielding reduces magnetic field radiation by up to 70 percent, preventing interference with adjacent sensitive circuits and reducing EMI filtering requirements
• Wide Operating Temperature Range: Minus 40 to plus 125 degrees Celsius operation maintains inductance stability across extreme environmental conditions, suitable for automotive and industrial deployments
• Superior Saturation Characteristics: Saturation current exceeding 50 amperes provides design headroom for transient current spikes and soft-start inrush conditions without core saturation

Applications and Use Cases

• Server and Data Center Power Supplies: Used in 48V to 12V buck converters and multi-phase VRM modules where 30 to 40 ampere continuous current delivery is required for CPU and memory power delivery
• Industrial Power Factor Correction: Employed in three-phase active PFC circuits operating at 20 to 40 kilohertz switching frequency to achieve greater than 99 percent power factor in industrial motor drives
• Automotive Power Management: Integrated into 12V to 5V and 12V to 3.3V buck regulators for infotainment systems, ADAS modules, and battery management systems requiring high reliability and temperature stability
• Telecommunications Equipment: Used in telecom rectifier modules and DC-DC converters powering base station amplifiers where high current efficiency and compact footprint are essential for space-constrained installations
• Renewable Energy Inverters: Applied in solar microinverter and wind power converter topologies where inductance stability across wide input voltage ranges ensures maximum power point tracking accuracy
• Uninterruptible Power Supply Systems: Integrated into UPS battery charger circuits and inverter output filters where thermal performance and current handling prevent component failure during extended runtime

How to Use

Installation of the PM2110-151K-RC 2209 requires proper PCB footprint design with adequate copper area for thermal dissipation. The component mounts directly onto the PCB using standard SMD soldering processes at 260 degrees Celsius peak temperature for 10 seconds. Ensure the PCB layout positions the inductor close to the switching FET and output capacitor to minimize parasitic inductance in the power loop, which is critical for maintaining converter stability and reducing switching noise. The shielded core orientation should align with the PCB plane to maximize electromagnetic shielding effectiveness and prevent coupling into sensitive signal traces.

For optimal performance, design the power circuit with adequate copper thickness (2 ounces minimum) under the inductor pads and connecting traces to handle the 40 ampere continuous current without exceeding 10 millivolts per ampere voltage drop. Include a snubber capacitor (typically 100 nanofarads ceramic) across the inductor terminals to dampen high-frequency ringing and protect the inductor from voltage spikes during FET switching transients. Monitor the inductor temperature during operation to ensure it does not exceed 125 degrees Celsius at maximum load conditions. For applications exceeding 50 amperes peak current, use multiple PM2110 inductors in parallel with matched inductance values to ensure equal current sharing and prevent thermal runaway.

Frequently Asked Questions

What is the maximum continuous current rating for the PM2110-151K-RC 2209?

The PM2110-151K-RC 2209 is rated for continuous DC current up to 40 amperes at 20 degrees Celsius ambient temperature. The current rating decreases approximately 0.5 percent per degree Celsius above 20 degrees, so at 100 degrees Celsius operating temperature, the effective continuous current rating is approximately 36 amperes. Peak transient current can reach 50 amperes for brief periods without core saturation, providing design margin for soft-start and load transient conditions.

How does the PM2110 compare to parallel inductors in high-current applications?

A single PM2110-151K-RC 2209 delivering 40 amperes at 12 to 15 milliohms DCR dissipates 6.4 to 7.2 watts of heat. Using two smaller inductors in parallel to share the same 40 amperes requires matched inductance values within 5 percent to ensure equal current sharing. The PM2110 single-inductor approach eliminates current-sharing complexity, reduces PCB area by 40 percent, and simplifies thermal management by concentrating heat in one location where heatsinking is more effective. This makes the PM2110 superior for space-constrained applications like automotive and telecommunications equipment.

What is the frequency response and quality factor of this inductor?

The PM2110-151K-RC 2209 exhibits a quality factor greater than 80 at 1 megahertz, indicating low parasitic resistance and high inductance stability across the switching frequency range of 100 kilohertz to 2 megahertz typical for modern power converters. The self-resonant frequency is approximately 15 to 20 megahertz, well above the operating frequency range, ensuring the inductor behaves as a pure inductance without capacitive effects. This high quality factor contributes to converter efficiency by minimizing core losses and maintaining tight loop control bandwidth.

How should I handle thermal management for this inductor in high-current applications?

At 40 amperes continuous current with 12 to 15 milliohms DCR, the inductor dissipates 6.4 to 7.2 watts, raising its surface temperature 80 to 100 degrees Celsius above ambient. Design the PCB with 2 to 3 ounces of copper under the inductor pads connected to a ground plane to provide thermal spreading. Consider adding a thermal via pattern directly under the inductor center to conduct heat to the PCB back layer. In forced-air cooling environments, position the inductor in the airflow path. For passive cooling, ensure minimum 50 millimeters clearance around the inductor to allow natural convection cooling.

Can I use the PM2110-151K-RC 2209 in parallel for applications exceeding 40 amperes?

Yes, multiple PM2110 inductors can be paralleled for applications requiring 50 to 80 amperes continuous current. Critical design requirements include matching inductance values within 5 percent to ensure equal current sharing and prevent thermal runaway in one inductor. Use separate PCB traces from the switching node to each inductor input and from each inductor output to the common output node, keeping trace lengths equal within 5 millimeters to minimize current distribution imbalance. Monitor each inductor temperature independently during operation to verify balanced current sharing. This approach is commonly used in 48V to 12V server PSU buck converters.

When will I receive my order?

Orders are dispatched within 1 to 5 business days from our Bengaluru warehouse. Delivery takes 7 to 8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Buy PM2110-151K-RC 2209 High Current SMD Power Inductors Online in India

Purchase the PM2110-151K-RC 2209 High Current SMD Power Inductors online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat.

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