CWL0306-3N6-CNH Equivalent & Substitute Parts

Part Overview

The CWL0306-3N6-CNH is a 3.6 nH shielded thin film inductor manufactured by Delta Electronics/Cyntec, designed for surface mount applications in the 0201 (0603 Metric) package. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. The part delivers 600 mA current rating with 100 mOhm maximum DC resistance in a compact form factor suitable for high-frequency RF and signal integrity applications.

Substiute Parts

CWL0306-3N6-CNH

Delta Electronics/CyntecIn Stock: 840CWL0306-3N6-CNH Datasheet

Current PartRFQ

LQP03HQ3N6C02D

Murata ElectronicsIn Stock: 15369LQP03HQ3N6C02D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWL0306-3N6-CNH is determined by the following critical parameters:

• Inductance Value: 3.6 nH with ±0.2 nH tolerance
• Package / Case: 0201 (0603 Metric) surface mount form factor
• Inductance Frequency Test Point: 500 MHz
• Self Resonant Frequency: 7 GHz
• Operating Temperature Range: Minimum -40°C to 125°C coverage
• RoHS Compliance: Required for regulatory alignment

The LQP03HQ3N6C02D from Murata Electronics meets these core substitution criteria. While differences exist in shielding type, current rating, and DC resistance specifications, the part maintains electrical equivalence at the specified inductance value and frequency test point within the same package geometry.

Parameter Comparison

Engineering Selection Recommendations

The LQP03HQ3N6C02D qualifies as an electrical substitute based on matching inductance value, tolerance, package geometry, and frequency characteristics. The substitute part carries active product status with ROHS3 compliance, providing supply chain continuity for the obsolete CWL0306-3N6-CNH.

Design considerations for substitution:

• Current Derating: The substitute part supports 500 mA versus the original 600 mA rating. Circuit designs operating at or near 600 mA require current margin verification.
• DC Resistance Impact: The substitute exhibits 170 mOhm maximum DCR compared to 100 mOhm maximum in the original. Power dissipation and thermal performance must be evaluated in applications sensitive to resistive losses.
• Shielding Difference: The substitute is unshielded versus the original shielded design. EMI-sensitive applications require assessment of coupling and noise performance.
• Temperature Range Extension: The substitute supports -55°C minimum operating temperature, exceeding the original -40°C specification.

Frequently Asked Questions (FAQ)

Q: Can the LQP03HQ3N6C02D directly replace the CWL0306-3N6-CNH in all applications?

A: Electrical substitution is valid for inductance value and frequency response. However, applications requiring the full 600 mA current rating, shielded construction, or 100 mOhm DCR specification must evaluate whether the substitute's reduced current rating, unshielded design, and higher DC resistance are acceptable for the specific circuit function.

Q: What is the impact of the unshielded design in the substitute part?

A: The LQP03HQ3N6C02D lacks shielding present in the original CWL0306-3N6-CNH. In circuits where magnetic field containment or EMI immunity is critical, the unshielded construction may introduce coupling effects or susceptibility to external interference not present with the shielded original.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both parts use the 0201 (0603 Metric) package with identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and 0.017" maximum seated height (0.42mm). PCB layout and assembly processes require no modification.

Q: What compliance certifications apply to the substitute part?

A: The LQP03HQ3N6C02D carries ROHS3 compliance and REACH Unaffected status. Both parts are classified under ECCN EAR99 and HTSUS 8504.50.8000.

Q: How do the Q-factor specifications compare?

A: The original part specifies Q of 25 at 500 MHz, while the substitute provides Q of 20 at the same frequency. This 20% reduction in quality factor reflects the thick film construction and unshielded design of the substitute.