CW201212-4N7J

Fixed Inductors Overview

The Bourns CW201212-4N7J is an unshielded wirewound RF inductor designed for surface mount applications. It features a nominal inductance of 4.7 nH with a tolerance of ±5%. The component supports a maximum DC current of 600 mA and exhibits a maximum DC resistance of 60 mOhms. Operating within a temperature range of -40°C to +125°C, it achieves a minimum Q factor of 20 at 250 MHz and a self-resonant frequency of 5.8 GHz. The physical dimensions are 2.0 mm x 1.25 mm x 1.2 mm.

Fixed Inductors Feature Summary

• High Q performance suitable for high-frequency circuits
• Compact 0805 footprint design
• Capable of operating at elevated temperatures up to 125°C

Fixed Inductors Applications

• Mobile phones
• Cellular phones
• CTV and VCR equipment

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure the correct variant is selected. Confirm that the package type matches the required manufacturing process, as options may include cut tape or reel configurations depending on the specific part number designation. Ensure compliance with RoHS standards if required by the end application.

Fixed Inductors Selection Notes

Select this component when a low-inductance value near 4.7 nH is required for RF matching networks. Consider the 600 mA current rating and 60 mOhms resistance for power handling requirements. The unshielded construction necessitates layout considerations to minimize electromagnetic interference with adjacent components in dense PCB designs.

Fixed Inductors Part Context

This part belongs to the CW201212 series of high Q chip inductors manufactured by Bourns. The series is characterized by its small size and suitability for consumer electronics. It utilizes a ceramic core and wirewound construction to achieve stable inductance values across the specified temperature range.

Fixed Inductors Replacement Considerations

Cross-reference with other 0805 unshielded inductors offering 4.7 nH ±5% tolerance. Verify that substitute components meet the same 600 mA current rating and 125°C operating temperature limit. Check for equivalent self-resonant frequency characteristics to maintain circuit stability.