CTTF0402F-9N1B

Overview

The CTTF0402F-9N1B is a fixed thin film inductor from Central Technologies, designed for surface mount applications. It features an inductance of 9.1 nH with a tolerance of ±0.1 nH (code B). The component operates within a temperature range of -55 °C to +125 °C and has a maximum DC resistance of 1.1 Ω. It supports a maximum rated current of 220 mA and offers a self-resonant frequency up to 6 GHz. The device is RoHS compliant and housed in a standard 0402 package.

Feature Summary

• Thin film construction for high precision
• Ultra-low inductance values available
• High self-resonant frequency capability
• RoHS compliant lead-free termination

Applications

• Cellular telephones
• GPS products
• RF circuits
• Pagers

Procurement Notes

Verify the specific suffix code 'B' corresponds to the required ±0.1 nH tolerance when ordering. Confirm that the 0402 footprint matches the target PCB layout. Ensure the operating environment stays within the specified -55 °C to +125 °C range. Check for RoHS3 compliance requirements if applicable to the final assembly.

Selection Notes

Select this part for applications requiring precise, low-value inductance in RF signal paths. The thin film technology ensures stability compared to wire-wound alternatives. Consider the 220 mA current limit and 1.1 Ω DCR for power handling constraints. Compare against other series members like CTTF0402F-9N1G or J if looser tolerances are acceptable.

Part Context

This component belongs to the CTTF0402F series of unshielded thin film chip inductors. The series covers a wide range of low inductance values from 0.2 nH to 33 nH. Different suffix letters indicate varying tolerance levels, allowing designers to balance cost and precision needs within the same physical package and manufacturing process.

Replacement Considerations

Direct substitutes include other CTTF0402F variants with different tolerance codes (e.g., G for ±2%, H for ±3%, J for ±5%) if tighter accuracy is not critical. Verify that any replacement maintains the 0402 footprint and similar SRF characteristics.