0402HM-3N9ECTS

Fixed Inductors Overview

The Delta Electronics/Components 0402HM-3N9ECTS is an unshielded drum core, wirewound inductor designed for surface mount applications. It features a ceramic core and operates within a temperature range of -55°C to 125°C. The component has an inductance of 3.9 nH with a tolerance of ±0.5nH, tested at 100 MHz. It supports a rated current of 750 mA and exhibits a DC resistance of 70 mOhm. The self-resonant frequency reaches 7 GHz, with a Q value of 30 at 250 MHz. The package dimensions are 0.043 inches in length, 0.024 inches in width, and 0.024 inches in maximum height.

Fixed Inductors Feature Summary

• Unshielded drum core wirewound construction utilizing a ceramic magnetic material
• High-frequency performance characterized by a 7 GHz self-resonant frequency
• Robust thermal stability supporting operation from -55°C to 125°C

Fixed Inductors Applications

• RF signal processing circuits
• High-frequency filtering networks
• Impedance matching networks in portable devices

Fixed Inductors Procurement Notes

Verify the specific suffix ECTS against official Delta Electronics documentation to confirm packaging configuration and tape/reel specifications. Ensure that the 70 mOhm DC resistance and 750 mA current rating align with the target circuit requirements. Cross-reference the 0402 (1005 Metric) footprint dimensions during PCB layout validation to guarantee proper surface mount compatibility.

Fixed Inductors Selection Notes

Select this component when low inductance values near 4 nH are required for high-speed digital or RF lines. The unshielded design necessitates careful placement to minimize electromagnetic interference with adjacent traces. Verify that the 750 mA saturation current exceeds the peak operational current of the application to prevent performance degradation under load conditions.

Fixed Inductors Part Context

This part belongs to the 0402HM series of fixed inductors from Delta Electronics/Components. The series offers various inductance options in a compact 0402 package, targeting space-constrained designs in cloud computing equipment, automotive systems, and IoT devices. The HM designation typically indicates specific high-performance characteristics within the broader passive component portfolio.

Fixed Inductors Replacement Considerations

The 0402HC-3N9ECTS is a related variant within the same manufacturer's lineup, offering similar form factor but potentially different electrical parameters such as DC resistance and current rating. Direct substitution requires verification of the 40 mOhm DCR and 900 mA rating against the original 70 mOhm and 750 mA specifications.