L0603C2N7SRMST Equivalent & Substitute Parts Reference

Part Overview

The L0603C2N7SRMST is a 2.7 nH unshielded multilayer ceramic inductor manufactured by KEMET in the 0603 (1608 Metric) surface mount package. This component is rated for 300 mA maximum current with 100 mOhm maximum DC resistance and operates across the temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical performance within the specified inductance, current rating, and impedance parameters while meeting modern compliance standards.

Substiute Parts

L0603C2N7SRMST

KEMETIn Stock: 1954L0603C2N7SRMST Datasheet

Current PartRFQ

AIMC-0603-2N7S-T

Abracon LLCIn Stock: 8575AIMC-0603-2N7S-T Datasheet

DirectRFQ

ILC0603ER2N7S

Vishay DaleIn Stock: 693ILC0603ER2N7S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L0603C2N7SRMST is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 2.7 nH
• Inductance tolerance: ±0.3 nH
• DC resistance: 100 mOhm maximum
• Package / Case: 0603 (1608 Metric)
• Core material: Ceramic
• Shielding configuration: Unshielded
• Mounting type: Surface Mount

Allowable Variation Parameters:

• Current rating: Equal to or greater than 300 mA
• Operating temperature range: Equal to or wider than -40°C to 85°C
• Product status: Active preferred for long-term availability
• Packaging format: Cut Tape, Tape & Reel, or Digi-Reel acceptable

The substitute parts identified below satisfy all mandatory matching parameters and provide equal or enhanced performance in allowable variation categories.

Parameter Comparison

Engineering Selection Recommendations

AIMC-0603-2N7S-T (Abracon LLC) — Direct Substitute with Enhanced Current Rating

This part is the preferred substitute for new designs and production transitions. It maintains identical inductance, tolerance, and DC resistance specifications while providing a 500 mA current rating, exceeding the original 300 mA requirement. The extended operating temperature range (-55°C to 125°C) provides broader environmental coverage. Product status is active, ensuring long-term availability and supply chain stability. All compliance certifications (ROHS3, REACH Unaffected, EAR99) match the original specification. The 0603 package dimensions are mechanically compatible with standard PCB layouts, though the increased seated height (0.95mm vs. 0.71mm) must be verified against board clearance constraints.

ILC0603ER2N7S (Vishay Dale) — Functional Equivalent with Identical Current Rating

This part provides direct electrical equivalence to the L0603C2N7SRMST with matching 300 mA current rating and 100 mOhm DC resistance. Inductance and tolerance specifications are identical. Product status is active, supporting long-term procurement. The extended operating temperature range (-55°C to 125°C) exceeds original requirements. All compliance certifications align with the original part. Mechanical compatibility is equivalent to the Abracon substitute, with identical seated height of 0.95mm. This option is suitable for applications where current rating requirements do not exceed 300 mA and where Vishay Dale supply chain preference exists.

Compliance and Certification Basis

Both substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification, ensuring regulatory continuity. Moisture sensitivity level remains at MSL 1 (Unlimited) for both alternatives, matching the original part's handling requirements.

Frequently Asked Questions (FAQ)

Q: Can AIMC-0603-2N7S-T be used as a direct replacement for L0603C2N7SRMST in all applications?

A: AIMC-0603-2N7S-T meets all electrical specifications for the L0603C2N7SRMST and provides enhanced current rating (500 mA vs. 300 mA). The primary consideration is the increased seated height (0.95mm vs. 0.71mm), which must be verified against PCB clearance and assembly constraints. Electrical performance is fully compatible.

Q: What is the difference between the two substitute parts?

A: Both AIMC-0603-2N7S-T and ILC0603ER2N7S maintain identical inductance (2.7 nH), tolerance (±0.3 nH), and DC resistance (100 mOhm). The primary difference is current rating: AIMC-0603-2N7S-T is rated for 500 mA, while ILC0603ER2N7S matches the original 300 mA rating. Both are active products with extended temperature ranges and full compliance certifications.

Q: Are there packaging format differences between the main part and substitutes?

A: The L0603C2N7SRMST is supplied in Cut Tape (CT) & Digi-Reel format. AIMC-0603-2N7S-T and ILC0603ER2N7S are supplied in Tape & Reel (TR) format. Both formats are standard for surface mount components and are compatible with automated assembly equipment. Reel specifications should be confirmed with procurement for integration into existing supply chain processes.

Q: Why is the L0603C2N7SRMST classified as obsolete?

A: Product obsolescence is determined by the manufacturer and typically reflects end-of-life decisions based on market demand and product portfolio optimization. The active substitute parts identified provide equivalent or enhanced functionality and ensure design continuity.

Q: Do the substitute parts require any design modifications?

A: Electrical modifications are not required. The primary design consideration is the increased seated height of the substitute parts (0.95mm vs. 0.71mm for the original). PCB layout and clearance verification is necessary to confirm compatibility with existing board designs, particularly in space-constrained applications.

Q: Are all parts RoHS3 compliant?

A: Yes. The L0603C2N7SRMST, AIMC-0603-2N7S-T, and ILC0603ER2N7S are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the self-resonant frequency consideration for these inductors?

A: The self-resonant frequency (SRF) varies among the parts: L0603C2N7SRMST (11 GHz), AIMC-0603-2N7S-T (9 GHz), and ILC0603ER2N7S (6 GHz). For applications operating below these frequencies, all parts are functionally equivalent. Applications requiring operation near or above the SRF of the substitute parts should be evaluated for performance impact.