CML0306-15N-HNH Equivalent & Substitute Parts

Part Overview

The CML0306-15N-HNH is a 15 nH shielded thin film inductor manufactured by Delta Electronics/Cyntec, designed for surface mount applications in the 0201 (0603 Metric) package. This component operates across -40°C to 85°C with a maximum DC resistance of 1.5Ohm and supports a 180 mA current rating. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

CML0306-15N-HNH

Delta Electronics/CyntecIn Stock: 933CML0306-15N-HNH Datasheet

Current PartRFQ

LQP03TN15NH02D

Murata ElectronicsIn Stock: 105311LQP03TN15NH02D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CML0306-15N-HNH is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 15 nH
• Inductance tolerance: ±3%
• Package / Case: 0201 (0603 Metric)
• Mounting type: Surface Mount
• Physical dimensions: 0.024" L x 0.012" W (0.61mm x 0.31mm)

Allowable Variation Parameters:

• Current rating: Substitute must meet or exceed 180 mA
• DC resistance: Substitute must not exceed 1.5Ohm
• Operating temperature range: Substitute must cover or exceed -40°C ~ 85°C
• Shielding: Shielded or unshielded configurations are acceptable based on circuit requirements
• Compliance certifications: RoHS and REACH status must be maintained

The LQP03TN15NH02D from Murata Electronics meets all mandatory matching parameters and exceeds performance specifications in current rating and DC resistance, qualifying it as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The LQP03TN15NH02D is qualified as a direct substitute for the CML0306-15N-HNH based on the following factors:

Compliance & Availability: The substitute part maintains RoHS and REACH compliance status, with ROHS3 certification exceeding the original part's RoHS compliance level. The substitute is currently in active production with substantial inventory availability (105,300 pcs), ensuring long-term supply continuity compared to the obsolete main part.

Electrical Performance: The substitute exceeds the main part's electrical specifications. The current rating increases from 180 mA to 250 mA, and DC resistance improves from 1.5Ohm maximum to 700mOhm maximum, providing superior performance margins in both parameters.

Temperature Range: The substitute's operating temperature range of -55°C ~ 125°C exceeds the main part's -40°C ~ 85°C specification, providing extended operational capability.

Physical & Mechanical Compatibility: Both parts share identical package specifications (0201 / 0603 Metric), mounting type (Surface Mount), and physical dimensions, ensuring direct PCB layout compatibility without redesign.

Shielding Consideration: The main part features shielding while the substitute is unshielded. Circuit-level electromagnetic compatibility assessment is required to determine if unshielded operation is acceptable in the target application.

Frequently Asked Questions (FAQ)

Q: Can the LQP03TN15NH02D directly replace the CML0306-15N-HNH without PCB modifications?

A: Yes, both parts share identical package specifications (0201 / 0603 Metric) and physical dimensions (0.024" L x 0.012" W). No PCB layout changes are required. However, the shielding difference must be evaluated at the circuit level.

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

A: The main part (CML0306-15N-HNH) is shielded, while the substitute (LQP03TN15NH02D) is unshielded. Shielding reduces electromagnetic interference coupling. Applications sensitive to EMI or operating in high-noise environments should evaluate whether unshielded operation is acceptable.

Q: Does the improved DC resistance of the substitute part affect circuit performance?

A: The substitute's DC resistance of 700mOhm is significantly lower than the main part's 1.5Ohm maximum. This improvement reduces resistive losses and heat generation, generally benefiting circuit efficiency. No negative performance impact is expected.

Q: Are there any temperature range limitations when using the substitute?

A: The substitute's operating range (-55°C ~ 125°C) exceeds the main part's range (-40°C ~ 85°C). No temperature-related limitations exist for applications within the original specification range.

Q: What is the inductance tolerance specification for both parts?

A: Both parts maintain ±3% inductance tolerance, ensuring equivalent frequency response and circuit tuning characteristics.

Q: Is the substitute part RoHS compliant?

A: Yes, the LQP03TN15NH02D is ROHS3 compliant, exceeding the main part's RoHS compliance status and meeting current regulatory requirements.