CML0306-9N1-HNH Equivalent & Substitute Parts

Part Overview

The CML0306-9N1-HNH is a 9.1 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 1.2Ohm maximum DC resistance and operates across -40°C to 85°C. The part is currently obsolete, making identification of suitable substitute components essential for ongoing production and maintenance applications.

Substiute Parts

CML0306-9N1-HNH

Delta Electronics/CyntecIn Stock: 1008CML0306-9N1-HNH Datasheet

Current PartRFQ

LQP03TN9N1H02D

Murata ElectronicsIn Stock: 90160LQP03TN9N1H02D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CML0306-9N1-HNH is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 9.1 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 may exceed the original specification (180 mA minimum required)
• DC resistance may be lower than the original specification (1.2Ohm maximum acceptable)
• Operating temperature range may be wider than the original specification (-40°C ~ 85°C minimum required)
• Shielding type (shielded or unshielded) depends on circuit electromagnetic compatibility requirements
• Product status (active or obsolete) affects long-term availability

The LQP03TN9N1H02D meets all mandatory matching parameters and exceeds performance specifications in current rating and DC resistance, making it a valid substitute.

Parameter Comparison

Engineering Selection Recommendations

The LQP03TN9N1H02D from Murata Electronics is a suitable substitute for the obsolete CML0306-9N1-HNH based on the following factors:

Compliance and Certification: Both components are RoHS compliant and REACH unaffected, meeting regulatory requirements for electronic component use.

Electrical Performance: The substitute part meets or exceeds all electrical specifications: identical inductance and tolerance, higher current rating (250 mA vs. 180 mA), and lower DC resistance (700mOhm vs. 1.2Ohm maximum).

Physical Compatibility: Both components use identical 0201 (0603 Metric) surface mount packages with matching height specifications, ensuring PCB layout compatibility without redesign.

Availability and Product Status: The CML0306-9N1-HNH is obsolete with limited inventory. The LQP03TN9N1H02D is an active product with substantial inventory availability (90,100 pieces), supporting long-term supply chain requirements.

Shielding Consideration: The primary difference is shielding type: the original is shielded while the substitute is unshielded. Circuit-level electromagnetic compatibility analysis is required to determine if unshielded operation is acceptable for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the LQP03TN9N1H02D directly replace the CML0306-9N1-HNH without PCB modifications?

A: Yes, from a physical and electrical standpoint. Both components use the 0201 (0603 Metric) package with identical mounting footprints and height specifications. No PCB layout changes are required. However, the change from shielded to unshielded construction may require electromagnetic compatibility evaluation at the circuit level.

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

A: The CML0306-9N1-HNH is shielded, which reduces electromagnetic radiation and susceptibility to external interference. The LQP03TN9N1H02D is unshielded. In applications with tight electromagnetic compatibility requirements or high-frequency noise sensitivity, this difference must be evaluated through circuit testing or simulation.

Q: Are the electrical specifications of the substitute adequate for the original application?

A: The substitute exceeds the original specifications in current rating (250 mA vs. 180 mA) and DC resistance performance (700mOhm vs. 1.2Ohm maximum). These improvements provide additional design margin and are not detrimental to circuit operation.

Q: What is the operating temperature range difference, and does it matter?

A: The substitute operates across -55°C to 125°C compared to the original -40°C to 85°C. This wider range provides greater flexibility for applications with extended temperature requirements and does not negatively impact performance within the original temperature specification.

Q: How do the inductance frequency test conditions differ?

A: The original part is tested at 100 MHz with Q of 4, while the substitute is tested at 500 MHz with Q of 14. These different test frequencies reflect different measurement methodologies but do not affect substitution validity at the 9.1 nH inductance value.

Q: Is the LQP03TN9N1H02D available in the same packaging format?

A: Yes. The substitute is supplied in Tape & Reel (TR) packaging in the 0201 (0603 Metric) format, compatible with automated assembly processes used for the original component.