CML0510-1N8-BNH Equivalent & Substitute Parts

Part Overview

The CML0510-1N8-BNH is a 1.8 nH shielded thin film inductor manufactured by Delta Electronics/Cyntec, designed for surface mount applications in the 0402 (1005 Metric) package. This component is rated for 930 mA maximum current with 100 mOhm DC resistance and operates across -40°C to 125°C. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

CML0510-1N8-BNH

Delta Electronics/CyntecIn Stock: 1085CML0510-1N8-BNH Datasheet

Current PartRFQ

ATFC-0402HQ-1N8B-T

Abracon LLCIn Stock: 18718ATFC-0402HQ-1N8B-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CML0510-1N8-BNH is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 1.8 nH
• Inductance tolerance: ±0.1 nH
• Package / Case: 0402 (1005 Metric)
• Mounting type: Surface Mount

Allowable Variation Parameters:

• Current Rating: Substitute must meet or exceed 930 mA requirement
• DC Resistance (DCR): Substitute must not exceed 100 mOhm Max
• Operating Temperature Range: Substitute must cover or exceed -40°C to 125°C
• Self Resonant Frequency: Substitute must meet or exceed 7 GHz
• Shielding: Shielded or unshielded configurations are functionally equivalent at this inductance value and frequency range
• RoHS Compliance: Active product status preferred for long-term availability

The ATFC-0402HQ-1N8B-T meets the mandatory matching parameters and is classified as a direct substitute despite variations in current rating, DCR, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The ATFC-0402HQ-1N8B-T is the designated substitute for the obsolete CML0510-1N8-BNH. Selection of this substitute is supported by the following factors:

Compliance & Availability: The substitute maintains active product status with ROHS3 compliance, ensuring long-term supply chain viability and regulatory alignment. Both components are REACH unaffected and carry unlimited moisture sensitivity classification.

Electrical Equivalence: Both inductors share identical inductance values (1.8 nH) and tolerance specifications (±0.1 nH), with matching self-resonant frequencies at 7 GHz. The substitute's higher Q factor at 500 MHz (16 vs. 10 @ 100 MHz) indicates improved performance characteristics in certain frequency bands.

Application Constraints: The substitute exhibits reduced current rating (650 mA vs. 930 mA) and elevated DC resistance (140 mOhm vs. 100 mOhm). Applications requiring the full 930 mA current capacity or operating above 85°C must evaluate circuit-level impact. The unshielded configuration of the substitute may introduce electromagnetic coupling considerations in noise-sensitive applications.

Physical Compatibility: Both components utilize identical 0402 (1005 Metric) packages with matching footprints. The substitute's reduced seated height (0.015" vs. 0.020") provides improved board-level clearance.

Frequently Asked Questions (FAQ)

Q: Can the ATFC-0402HQ-1N8B-T directly replace the CML0510-1N8-BNH in all applications?

A: Direct substitution is valid for applications operating at or below 650 mA and 85°C. Applications requiring the full 930 mA current capacity or extended temperature operation to 125°C require circuit-level evaluation to confirm performance margins.

Q: What is the impact of the shielded-to-unshielded configuration change?

A: The unshielded ATFC-0402HQ-1N8B-T may exhibit increased electromagnetic coupling with adjacent circuit elements. Applications in high-density RF or mixed-signal environments should assess potential crosstalk effects.

Q: Are the physical packages identical?

A: Both components use the 0402 (1005 Metric) package with identical footprints. The substitute's lower seated height (0.015" vs. 0.020") is compatible with existing PCB designs.

Q: What is the significance of the higher DC resistance in the substitute?

A: The ATFC-0402HQ-1N8B-T exhibits 40 mOhm higher DC resistance (140 mOhm vs. 100 mOhm). This increases resistive losses and heat dissipation. Applications with tight power budget constraints should verify thermal performance.

Q: Is the substitute suitable for high-temperature applications?

A: The substitute operates to 85°C maximum, compared to the original part's 125°C rating. Applications requiring operation above 85°C are not compatible with this substitute.

Q: What certifications apply to both components?

A: Both inductors are RoHS compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. The substitute carries ROHS3 certification, providing enhanced regulatory coverage.