SRF1280A-330M

$1.62

Description：INDUCT ARRAY 2 COIL 33UH SMD
Series：SRF1280A
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:38e32a3428d4 Category: Arrays, Signal Transformers Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：INDUCT ARRAY 2 COIL 33UH SMD
Series：SRF1280A
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Number of Coils：2
Inductance - Connected In Parallel：33 µH
Inductance - Connected In Series：132 µH
Tolerance：±20%
Current Rating - Parallel：3.23 A
Current Rating - Series：1.61 A
DC Resistance (DCR) - Parallel：66.4mOhm Max
DC Resistance (DCR) - Series：265mOhm 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：6.22 A
Current Saturation - Series：3.11 A
Ratings：AEC-Q200

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SRF1280A-330M

Overview

The Bourns SRF1280A-330M is a dual-winding shielded power inductor array featuring two independent coils within a single surface-mount package. It offers a nominal inductance of 33 µH with a ±20% tolerance. The component supports parallel and series configurations, providing distinct electrical characteristics for each mode. Key parameters include a maximum DC resistance of 66.4 mΩ (parallel) or 265 mΩ (series), a saturation current of 6.22 A (parallel) or 3.11 A (series), and an operating temperature range from -40°C to +125°C.

Feature Summary

Dual-winding architecture allows flexible circuit integration via parallel, series, or independent operation.
Shielded magnetic design minimizes electromagnetic interference and reduces sensitivity to external fields.
High-current capability supports demanding power supply applications with low core loss.

Applications

Parallel-connected power filtering stages
Series-connected high-inductance chokes
Transformer configurations in isolated converters

Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm pinout and electrical ratings. Ensure the ordering part number matches the required configuration data. Cross-reference RoHS compliance status with the latest regulatory documentation before finalizing procurement specifications.

Selection Notes

Select this component when space-constrained designs require multiple inductive elements. Evaluate thermal performance under load to ensure operation remains within the specified temperature limits. Confirm that the chosen connection mode aligns with the target impedance and current requirements of the power stage.

Part Context

This device belongs to the SRF1280A series of dual-winding shielded power inductors manufactured by Bourns Inc. The series is designed for compact surface-mount applications requiring high current handling and magnetic shielding. It serves as a specialized alternative to discrete single-coil inductors in dense PCB layouts.