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Product Detailed Parameters
- Description：INDUCT ARRAY 2 COIL 15UH SMD
- Series：SRF1280
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Coils：2
- Inductance - Connected In Parallel：15 µH
- Inductance - Connected In Series：60 µH
- Tolerance：±20%
- Current Rating - Parallel：5.03 A
- Current Rating - Series：2.51 A
- DC Resistance (DCR) - Parallel：33.3mOhm Max
- DC Resistance (DCR) - Series：129mOhm Max
- Shielding：Shielded
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：Nonstandard
- Size / Dimension：0.492" L x 0.492" W (12.50mm x 12.50mm)
- Height：0.315" (8.00mm)
- Current Saturation - Parallel：9.66 A
- Current Saturation - Series：4.83 A
- Ratings：-
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Overview
The Bourns SRF1280-150M is a shielded dual-winding power inductor array from the SRF1280 series. It features two coils with an inductance of 15 µH per coil, offering 60 µH in series and 15 µH in parallel configurations. The component has a maximum DC resistance of 33.3 mΩ in parallel and 129 mΩ in series. Rated currents are 5.03 A (parallel) and 2.51 A (series), with saturation currents of 9.66 A (parallel) and 4.83 A (series). It operates within -40°C to 125°C.
Feature Summary
- Dual-winding shielded design for coupled inductor applications
- Supports both series and parallel connection topologies
- High current handling capabilities with low DC resistance
Applications
- SEPIC converter topologies
- Power supplies for communications equipment
- Computer power systems
- LCD and flat panel displays
Procurement Notes
Verify the specific suffix (e.g., TR, CT, DKR) against distributor listings to confirm packaging type such as tape and reel or cut tape. Confirm RoHS3 compliance status via the latest manufacturer datasheet or PCN documents before finalizing procurement specifications.
Selection Notes
Select this component when a shielded dual-coil inductor is required for SEPIC or similar topologies. Ensure the 15 µH per coil value matches the circuit design for both series and parallel modes. Verify that the 5.03 A parallel rated current meets the system's peak current requirements without exceeding saturation limits.
Part Context
This part belongs to the Bourns SRF1280 series of dual-winding shielded power inductors. These components are designed for surface mount assembly and are commonly used in power conversion circuits requiring coupled inductance. The series offers various inductance values while maintaining consistent physical dimensions.
Replacement Considerations
Check for other SRF1280 series variants with different inductance values if the 15 µH specification does not match the new design requirements. Ensure any substitute maintains the same footprint and shielding characteristics.
