XFL4015-471MEB COILCRAFT Inductor (Other) In Stock
The XFL4015-471MEB is a high-performance power inductor from Coilcraft with 0.47 µH nominal inductance and an ultra-low DC resistance of 8.36 mΩ in a compact 4.0 × 4.0 × 1.5 mm shielded package. Key specs include composite core material, rectangular construction, and a 1616 case code optimized for high-current DC-DC converter filter stages. Designed for power supply applications in mobile, computing, and telecom systems requiring efficient energy storage with minimal resistive losses.
- Manufacturer
- COILCRAFT
- Package
- Other
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- XFL4015-471MEB Datasheet PDF
- Category
- Inductor
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 0.47 µH inductance with ultra-low 8.36 mΩ DC resistance for minimal conduction losses in high-current power stages
- Compact 1616 (4.0 × 4.0 × 1.5 mm) shielded composite-core design reduces EMI and board space simultaneously
- General-purpose power inductor construction supports high-frequency DC-DC converter switching up to multi-megahertz
- Rectangular shielded form factor simplifies automated pick-and-place assembly and reduces stray field coupling to adjacent circuits
Applications
The XFL4015-471MEB is optimized for the output filter inductors of synchronous buck and boost DC-DC converters in smartphones, tablets, SSD storage controllers, and network equipment where board space and efficiency are critical constraints. Its 8.36 mΩ DCR keeps I²R losses low at high output currents, extending battery life in portable devices. The shielded composite core also makes it suitable for noise-sensitive analog and RF power supply rails where stray inductance field emission must be minimized.
Specifications
| YTEOL | 0 |
| Case/Size Code | 1616 |
| Construction | Rectangular |
| Core Material | COMPOSITE |
| DC Resistance | 0.00836Ω |
| Inductance-Nom (L) | 0.47 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| Number of Functions | 1 |
| Package Height | 1.6mm |
| Package Length | 4mm |
| Package Style | SMT |
| Package Width | 4mm |
| Packing Method | TR |
| Rated Current-Max | 11.2A |
| Reference Standard | AEC-Q200 |
| Self Resonance Frequency | 89MHz |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | YES |
| Surface Mount | YES |
| Terminal Finish | TIN SILVER |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | ONE SURFACE |
| Test Frequency | 1MHz |
| Tolerance | 20% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 8.36 mΩ DCR of the XFL4015-471MEB benefit high-current buck converter designs?
The ultra-low 8.36 mΩ DC resistance of the XFL4015-471MEB minimizes conduction losses (I²R heating) even at high output currents, directly improving converter efficiency. For a 5 A output current, the resistive power loss is only 0.21 W, keeping the inductor cool and allowing the converter to achieve efficiency targets above 90% in compact portable and computing power supply designs.
What switching frequency range is the XFL4015-471MEB suitable for in a synchronous buck converter?
The XFL4015-471MEB with its 0.47 µH inductance is well-suited for synchronous buck converters switching at 1 MHz to 5 MHz, where the inductance value produces acceptable ripple current levels for typical output current ratings. At 2 MHz with a 5 V input and 1.8 V output, the 0.47 µH inductance yields a ripple current of approximately 1.7 A peak-to-peak at a 5 A load, providing a good balance of transient response and ripple.
For a space-constrained SSD or mobile CPU power rail, how does the XFL4015-471MEB's footprint compare to discrete ferrite inductors?
The XFL4015-471MEB in its 1616 case code occupies a 4.0 × 4.0 mm PCB footprint with only 1.5 mm height, making it one of the more compact high-current power inductors available. Compared to larger 5 × 5 mm or 6 × 6 mm ferrite-core alternatives, it saves up to 36% to 56% of board area, which is significant in thin mobile devices or multi-phase SSD controller power stages where every square millimeter of PCB is valuable.
Does the shielded composite core in the XFL4015-471MEB help with EMI compliance in high-frequency power designs?
Yes, the shielded composite core construction of the XFL4015-471MEB significantly reduces stray magnetic field emission compared to unshielded drum-core inductors. This lower EMI radiation helps designs meet CISPR 22 or FCC Part 15 Class B limits in switching frequencies above 1 MHz, reducing the external filtering and shielding cost required to pass electromagnetic compatibility testing in commercial electronics products.
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