SRF0703HA-8R2M

Overview

The SRF0703HA-8R2M is an automotive-grade, shielded dual-winding power inductor from the Bourns SRF0703HA series. It features a ferrite core and surface-mount construction with dimensions of 7.6 mm x 7.6 mm x 3.4 mm. The component provides an inductance of 8.2 µH with a ±20% tolerance. It supports parallel connection for a maximum DC current of 2.19 A and a DCR of 77.2 mΩ, or series connection for a maximum DC current of 1.1 A and a DCR of 306 mΩ. It operates within a temperature range of -55°C to +150°C and complies with AEC-Q200 standards.

Feature Summary

• Automotive-grade reliability certified under AEC-Q200 standards
• Shielded dual-winding design minimizes electromagnetic interference
• Flexible connectivity options supporting both parallel and series configurations
• Extended thermal stability suitable for high-temperature environments

Applications

• Automotive power delivery networks
• Dual-inductor voltage regulator (TLVR) modules
• Transformer-based isolation circuits
• High-density automotive electronic control units

Procurement Notes

Verify the specific suffix and manufacturing date code against the latest Bourns datasheet to ensure compliance with current RoHS and REACH directives. Confirm that the required current ratings align with your system's peak load requirements, as the component offers distinct performance metrics for parallel versus series winding connections. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to reflow soldering.

Selection Notes

Select this component when designing automotive systems requiring compact, shielded coupled inductors with high thermal endurance. The choice between parallel and series operation depends on whether higher current capacity or higher inductance is prioritized. Verify that the physical footprint fits the PCB layout constraints and that the operating temperature range covers the expected environmental extremes of the application.

Part Context

This part belongs to the SRF0703HA series, which consists of shielded wirewound inductors designed for demanding automotive applications. The series is characterized by its small form factor and ability to handle significant current densities while maintaining low magnetic leakage. It serves as a critical passive component in modern vehicle electronics where space and thermal management are primary design drivers.

Replacement Considerations

Direct substitutes include other Bourns SRF0703HA variants with different inductance values, such as SRF0703HA-102M. Cross-brand replacements require matching the 7.6x7.6x3.4mm footprint, AEC-Q200 certification, and equivalent electrical parameters for the chosen configuration.