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Product Detailed Parameters
- Description：FIXED IND 3.9UH 5.6A 17 MOHM SMD
- Series：-
- Mfr：Murata Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Drum Core, Wirewound
- Material - Core：Ferrite
- Inductance：3.9 µH
- Tolerance：±30%
- Current Rating (Amps)：5.6 A
- Current - Saturation (Isat)：7.1A
- Shielding：Shielded
- DC Resistance (DCR)：17mOhm Max
- Q @ Freq：-
- Frequency - Self Resonant：-
- Ratings：-
- Operating Temperature：-40°C ~ 85°C
- Inductance Frequency - Test：100 kHz
- Mounting Type：Surface Mount
- Package / Case：Nonstandard
- Supplier Device Package：-
- Size / Dimension：0.409" L x 0.409" W (10.40mm x 10.40mm)
- Height - Seated (Max)：0.268" (6.80mm)
- Features：-
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Overview
The #B966AS-3R9N=P3 is a shielded wirewound power inductor from the DS106C2 series by Murata Electronics. It features a nonstandard SMD package measuring 10.40mm x 10.40mm with a maximum seated height of 6.80mm. The component provides an inductance of 3.9 µH with a tolerance of ±30%. It supports a root mean square current (Irms) of 5.6 A and a saturation current (Isat) of 7.1 A, with a maximum DC resistance of 17 mΩ.
Feature Summary
- Shielded drum core construction minimizes electromagnetic interference
- High current handling capability for power management applications
- Surface mount design facilitates automated PCB assembly
Applications
- Power management circuits
- Current smoothing applications
- Noise reduction filtering
Procurement Notes
Verify availability status carefully as this component is scheduled for obsolescence and will be discontinued by the manufacturer. Confirm that the specific pinout and mechanical dimensions match your existing board layout before finalizing orders, as end-of-life items may have limited supply chains or require immediate substitution planning.
Selection Notes
Select this inductor when a 3.9 µH value with high current capacity is required in a compact surface-mount form factor. Ensure the application current does not exceed the 5.6 A RMS rating to maintain performance. Consider the physical footprint of 10.40mm x 10.40mm during PCB layout to ensure adequate clearance and thermal management.
Part Context
This part belongs to the DS106C2 series of fixed power inductors manufactured by Murata Electronics. These components are designed for general-purpose power supply filtering and energy storage. The series offers various inductance values within similar physical constraints, providing engineers with options for different current and impedance requirements in space-constrained designs.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Due to the scheduled obsolescence status, alternative sourcing should focus on finding equivalent specifications from other manufacturers or utilizing newer Murata series components with compatible electrical parameters.
