9.1A 4.7uH ±20% 15.15A 19.9mΩ SMD,11.5x10mm Fixed Inductors
The AAPS1040M4R7A belongs to the AAPS series of molded power inductors, designed for high-current DC-DC converters and power management applications. It features a magnetically shielded construction, helping reduce electromagnetic interference (EMI) while maintaining stable inductance.
Key Characteristics
Component Type: Fixed power inductor
Inductance: 4.7 µH
Tolerance: typically ±20%
Construction: Molded / shielded (low EMI noise)
Mounting Type: Surface-mount (SMD)
Package Size: approx. 10 × 10 mm footprint (1040 size)
DC Resistance (DCR): ~19.9 mΩ (max)
Rated Current (Irms): ~9.1 A
Saturation Current (Isat): ~15.15A
Function
This inductor is used to:
Store energy in magnetic form
Smooth current in switching regulators
Filter noise in power circuits
Stabilize voltage in DC-DC converters
Commonly found in:
Buck / boost converters
Power supplies
Battery-powered systems
Embedded electronics
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