CWL0306-1N2-CNH Equivalent & Substitute Parts

Part Overview

The CWL0306-1N2-CNH is a 1.2 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 1.1 A maximum current with 30 mOhm DC resistance and operates across -40°C to 125°C. The part is currently obsolete, making identification of suitable substitute components essential for ongoing production and maintenance applications.

Substiute Parts

CWL0306-1N2-CNH

Delta Electronics/CyntecIn Stock: 844CWL0306-1N2-CNH Datasheet

Current PartRFQ

LQP03HQ1N2W02D

Murata ElectronicsIn Stock: 40498LQP03HQ1N2W02D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWL0306-1N2-CNH is determined by the following critical parameters:

• Inductance Value: Must match 1.2 nH
• Current Rating: Must support minimum 1.1 A
• Package / Case: Must be 0201 (0603 Metric) for mechanical and electrical compatibility
• Operating Temperature Range: Must cover or exceed -40°C to 125°C
• Self Resonant Frequency: Must be 13 GHz or higher
• Mounting Type: Must be Surface Mount

The LQP03HQ1N2W02D from Murata Electronics meets these core substitution criteria. While it differs in construction type (thick film vs. thin film) and shielding configuration (unshielded vs. shielded), these differences do not prevent functional substitution when the electrical parameters align within acceptable tolerances for the application.

Parameter Comparison

Engineering Selection Recommendations

The LQP03HQ1N2W02D is a direct functional substitute for the obsolete CWL0306-1N2-CNH based on matching inductance value, current rating, package form factor, and operating temperature range. The substitute part carries Active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Key considerations for selection:

• DC Resistance: The substitute exhibits 40 mOhm maximum DCR compared to 30 mOhm maximum in the original part. This 10 mOhm increase represents a 33% rise in resistance and may impact power dissipation in current-sensitive applications.
• Quality Factor: The substitute Q value of 20 @ 500 MHz is lower than the original 25 @ 500 MHz, indicating slightly reduced efficiency at the test frequency.
• Shielding Configuration: The substitute is unshielded versus the original shielded design. In applications requiring electromagnetic isolation, this difference must be evaluated against circuit layout and interference requirements.
• Temperature Range: The substitute supports -55°C to 125°C, providing extended low-temperature capability beyond the original -40°C to 125°C range.

Frequently Asked Questions (FAQ)

Q: Can the LQP03HQ1N2W02D directly replace the CWL0306-1N2-CNH without circuit modification?

A: The LQP03HQ1N2W02D matches the critical electrical parameters (inductance, current rating, frequency response) and physical package (0201 / 0603 Metric) required for direct substitution. However, the increased DC resistance (40 mOhm vs. 30 mOhm) and unshielded construction may require evaluation in applications sensitive to power loss or electromagnetic coupling.

Q: What is the impact of the shielding difference between these parts?

A: The original CWL0306-1N2-CNH features shielded construction, which reduces electromagnetic radiation and susceptibility to external fields. The LQP03HQ1N2W02D is unshielded. In high-frequency or noise-sensitive circuits, the unshielded design may introduce coupling effects. Circuit layout and filtering strategies should be assessed.

Q: Are there packaging or moisture sensitivity differences?

A: Both parts share identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special moisture handling requirements. The LQP03HQ1N2W02D is supplied in Tape & Reel (TR) packaging, while the original part packaging format is not specified in available data.

Q: How do the inductance tolerances compare?

A: The LQP03HQ1N2W02D offers tighter inductance tolerance (±0.05 nH) compared to the CWL0306-1N2-CNH (±0.2 nH). This improved tolerance may provide better circuit performance consistency in precision applications.

Q: Is the substitute part compliant with current regulatory standards?

A: Yes. The LQP03HQ1N2W02D carries ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements. The original part is RoHS Compliant, confirming baseline regulatory alignment.