CWL0306-2N7-CNH Equivalent & Substitute Parts

Part Overview

The CWL0306-2N7-CNH is a 2.7 nH shielded thin film inductor manufactured by Delta Electronics/Cyntec, designed for surface mount applications in the 0201 (0603 Metric) package. This component is rated for 800 mA continuous current with a maximum DC resistance of 90 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing production and design requirements.

Substiute Parts

CWL0306-2N7-CNH

Delta Electronics/CyntecIn Stock: 959CWL0306-2N7-CNH Datasheet

Current PartRFQ

LQP03PN2N7C02D

Murata ElectronicsIn Stock: 2160LQP03PN2N7C02D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CWL0306-2N7-CNH is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 2.7 nH
• Inductance tolerance: ±0.2 nH
• Package / Case: 0201 (0603 Metric)
• Physical dimensions: 0.024" L x 0.012" W (0.60 mm x 0.30 mm)
• Mounting type: Surface Mount

Acceptable Variation Parameters:

• Current rating: Substitute must meet or exceed 800 mA
• DC resistance: Substitute must not exceed 90 mOhm
• Operating temperature range: Substitute must cover or exceed -40°C to 125°C
• RoHS compliance: Substitute must maintain RoHS compliance status

The LQP03PN2N7C02D from Murata Electronics qualifies as a direct substitute based on matching inductance, tolerance, package dimensions, and mounting type. While the substitute exhibits differences in shielding type (unshielded vs. shielded) and core material composition, these differences do not preclude substitution when electromagnetic isolation is not a circuit requirement.

Parameter Comparison

Engineering Selection Recommendations

The LQP03PN2N7C02D represents a viable substitute for the obsolete CWL0306-2N7-CNH based on the following factors:

Compliance and Availability: The substitute maintains active product status with confirmed inventory availability (2059 pcs), whereas the main part is obsolete. Both components satisfy RoHS compliance requirements, with the substitute meeting the more recent ROHS3 standard.

Electrical Performance: The substitute exceeds the current rating requirement (900 mA vs. 800 mA) and provides superior DC resistance performance (65 mOhm vs. 90 mOhm maximum). Both components maintain identical inductance values and tolerances at the specified test frequency of 500 MHz.

Physical Compatibility: Identical package dimensions and mounting type ensure direct PCB footprint compatibility. The substitute exhibits a lower seated height (0.013" vs. 0.017"), which may provide additional clearance benefits in space-constrained applications.

Design Considerations: The primary difference between components is the shielding configuration. The main part provides electromagnetic shielding through its thin film construction, while the substitute is unshielded. Circuit designs requiring electromagnetic isolation should evaluate whether the unshielded construction of the substitute is compatible with the application's EMI/RFI performance requirements.

Frequently Asked Questions (FAQ)

Q: Can the LQP03PN2N7C02D directly replace the CWL0306-2N7-CNH in all applications?

A: Direct replacement is possible for applications where electromagnetic shielding is not a circuit requirement. Both components share identical inductance values, tolerances, package dimensions, and mounting types. However, applications requiring shielded inductor performance should evaluate the unshielded construction of the substitute against specific EMI/RFI specifications.

Q: What are the key differences between these two inductors?

A: The primary differences are shielding type (shielded vs. unshielded), core material (thin film vs. thick film), and performance characteristics. The substitute offers lower DC resistance (65 mOhm vs. 90 mOhm), higher current rating (900 mA vs. 800 mA), and lower seated height. The main part provides higher Q factor (25 vs. 10 at 500 MHz) and higher self-resonant frequency (10 GHz vs. 6.6 GHz).

Q: Are there any temperature range considerations?

A: The substitute supports an extended lower temperature limit (-55°C vs. -40°C), providing broader operational range. Both components maintain the same upper temperature limit of 125°C. Applications operating at temperatures below -40°C should utilize the substitute.

Q: What is the impact of the different package heights?

A: The substitute has a maximum seated height of 0.013" compared to 0.017" for the main part. This 0.004" reduction may provide additional clearance in applications with tight vertical spacing constraints.

Q: Are both components RoHS compliant?

A: Yes. The main part is RoHS Compliant, and the substitute meets the more recent ROHS3 Compliant standard. Both components satisfy RoHS requirements for new designs and production.

Q: What is the significance of the Q factor difference?

A: The main part exhibits a Q factor of 25 at 500 MHz, while the substitute has a Q factor of 10 at the same frequency. Higher Q factor indicates lower losses and better frequency selectivity. Applications requiring high-Q performance should evaluate whether the substitute's lower Q factor impacts circuit performance.