2R2 High Current SMD Power Inductor Flat Wire Wound Iron Core Inductor for DC-DC Converters
The flat ribbon winding and the alloy core work together to keep losses low: the rectangular conductor reduces DC resistance and limits skin effect at high frequency, while the high-saturation alloy core lets the inductor carry large currents before the core saturates. The enclosed magnetic path shields the winding, which cuts EMI and crosstalk on dense boards. The part is fully surface mount, with tinned copper terminals that reflow directly onto the board pads.
Application Specifications
| Parameter | Specification |
| Model | 2R2 |
| Product type | High-current SMD power inductor, flat-wire wound on an iron-based alloy core |
| Inductance | 2.2µH (±20% typical) |
| Rated current | To be confirmed |
| DC resistance (DCR) | To be confirmed |
| Core | Iron-based alloy, high saturation |
| Winding | Flat copper wire (rectangular / ribbon conductor) |
| Shielding | Magnetically shielded construction |
| Terminals | Tinned copper |
| Mounting | SMD (surface mount) |
| Operating temperature | -40°C to +125°C |
| Function | Energy storage and release |
| Typical applications | DC-DC converters, VRMs, power supplies / SMPS, communications equipment and LED drivers |
| Certification | ISO 9001:2015, RoHS, CE and cULus recognized component |
| MOQ | 1,000 pieces |
Product Features
● 2.2µH Inductance, ±20% Typical: Marked 2R2 on the top face for easy identification.
● High Current Capability: Flat-wire winding on an alloy core for high-current power rails.
● Flat Copper Wire Winding: Rectangular ribbon conductor instead of round wire.
● Low DC Resistance: The flat conductor keeps DC resistance down compared with round-wire windings.
● Low AC Losses: Reduced skin effect at high frequency keeps switching losses low.
● Iron-Based Alloy Core: High saturation, suitable for power applications.
● Magnetically Shielded Construction: The enclosed magnetic path reduces EMI and crosstalk on dense boards.
● Tinned Copper Terminals: Good solderability for reflow assembly.
● SMD Mounting: Fully surface-mount construction, no through-holes or hand wiring.
● Wide Operating Temperature: -40°C to +125°C.
Product Advantages
● 2.2µH (±20% typical) winding: a low inductance value for high-current DC-DC converter stages, in a surface-mount body.
● Flat copper wire instead of round wire: the rectangular conductor lowers DC resistance and reduces skin effect at high frequency.
● Iron-based alloy core: high saturation flux density lets the inductor carry large currents before the core saturates.
● Magnetically shielded construction: the closed magnetic path contains the flux, reducing EMI and crosstalk in dense PCB layouts.
● Low DC resistance: lower I²R loss means higher converter efficiency and less heat to manage.
● Surface-mount termination: tinned copper terminals reflow directly onto the board pads, which removes through-holes and hand wiring from the assembly.
● Wide operating temperature range, -40°C to +125°C: stable performance in high-temperature power circuits.
Application scenario
Application Specifications
DC-DC converters
The switching inductor in buck, boost and buck-boost stages.
Voltage regulator modules (VRMs)
The output inductor on regulated power rails.
Power supplies and SMPS
The energy-storage and filter inductor in switch-mode supply designs.
Communications equipment
DC power stages in communications equipment, the application field listed for the part.
LED drivers
The switching inductor in constant-current LED supply circuits.
Product Details Showcase
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