CML0306-12N-HNH Equivalent & Substitute Parts

Part Overview

The CML0306-12N-HNH is a 12 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 180 mA maximum current with a DC resistance of 1.3 Ohm maximum and operates across the temperature range of -40°C to 85°C. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

CML0306-12N-HNH

Delta Electronics/CyntecIn Stock: 696CML0306-12N-HNH Datasheet

Current PartRFQ

LQP03HQ12NH02D

Murata ElectronicsIn Stock: 7392LQP03HQ12NH02D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CML0306-12N-HNH is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 12 nH (±3% tolerance)
• Package / Case: 0201 (0603 Metric) surface mount
• Physical dimensions compatible with 0.024" L x 0.012" W footprint

Allowable Variations:

• Shielding type (shielded to unshielded transition acceptable if circuit design permits)
• Current rating (substitute must meet or exceed 180 mA requirement)
• DC resistance (substitute must not exceed application limits; lower DCR is acceptable)
• Operating temperature range (substitute must cover minimum -40°C ~ 85°C or broader range)
• Inductor type (thin film to thick film transition acceptable if electrical performance is maintained)

The LQP03HQ12NH02D from Murata Electronics qualifies as a direct substitute based on matching inductance, tolerance, package, and physical dimensions, while offering improved current handling and lower DC resistance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The LQP03HQ12NH02D is the qualified substitute for the obsolete CML0306-12N-HNH based on the following engineering criteria:

Electrical Compatibility: Both components maintain identical inductance values (12 nH) and tolerance specifications (±3%), ensuring functional equivalence in circuit applications. The substitute provides superior current handling capacity (300 mA versus 180 mA) and significantly lower DC resistance (500 mOhm versus 1.3 Ohm), resulting in reduced power dissipation and improved thermal performance.

Regulatory Compliance: The LQP03HQ12NH02D holds active product status with ROHS3 compliance and REACH unaffected designation, providing long-term supply assurance and regulatory alignment. Both components carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling and storage requirements.

Thermal Performance: The substitute operates across an extended temperature range (-55°C ~ 125°C) compared to the main part (-40°C ~ 85°C), providing broader operational margins for demanding applications.

Design Consideration: The transition from shielded to unshielded construction requires circuit-level evaluation. Applications with strict electromagnetic interference (EMI) requirements or sensitive analog signal paths must assess whether unshielded operation is acceptable within the system design.

Frequently Asked Questions (FAQ)

Q: Can the LQP03HQ12NH02D directly replace the CML0306-12N-HNH without circuit modification?

A: Direct replacement is possible for applications where unshielded inductor operation is acceptable. The identical inductance value, tolerance, and package ensure mechanical and electrical fit. However, the transition from shielded to unshielded construction may affect EMI performance in sensitive circuits. Circuit-level validation is required for applications with strict noise immunity specifications.

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

A: The primary differences are shielding type (shielded versus unshielded), inductor construction (thin film versus thick film), DC resistance (1.3 Ohm versus 500 mOhm), and current rating (180 mA versus 300 mA). The substitute offers lower losses and higher current capacity, while the original provides shielded construction for EMI mitigation.

Q: Are the physical dimensions identical?

A: Both components use the 0201 (0603 Metric) package with nearly identical footprints. The CML0306-12N-HNH measures 0.024" L x 0.012" W with 0.013" maximum seated height, while the LQP03HQ12NH02D measures 0.024" L x 0.012" W with 0.017" maximum seated height. The height difference of 0.004" (0.09 mm) is negligible for most PCB assembly applications.

Q: What is the supply status of each component?

A: The CML0306-12N-HNH is obsolete with 655 pieces available in current inventory. The LQP03HQ12NH02D is active production with 7370 pieces in stock, ensuring long-term availability and supply continuity for new designs and production runs.

Q: Are there any compliance or certification differences?

A: Both components are RoHS compliant and REACH unaffected. The substitute carries ROHS3 certification, representing the current regulatory standard. Both maintain MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling requirements.