L0603C2N2SRMST Equivalent & Substitute Parts

Part Overview

The L0603C2N2SRMST is a 2.2 nH unshielded multilayer ceramic inductor manufactured by KEMET in the 0603 (1608 Metric) surface mount package. This component is rated for 300 mA continuous current with a maximum DC resistance of 100 mOhm and operates across the temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

L0603C2N2SRMST

KEMETIn Stock: 4860L0603C2N2SRMST Datasheet

Current PartRFQ

7447860022

Würth ElektronikIn Stock: 47227447860022 Datasheet

DirectRFQ

ILC0603ER2N2S

Vishay DaleIn Stock: 1037ILC0603ER2N2S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L0603C2N2SRMST is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Inductance value: 2.2 nH with tolerance ±0.3 nH
• Current rating: 300 mA minimum
• DC resistance: 100 mOhm maximum
• Core material: Ceramic
• Shielding configuration: Unshielded

Mechanical Parameters:

• Package designation: 0603 (1608 Metric)
• Mounting type: Surface Mount
• Component type: Multilayer inductor

Compliance Parameters:

• RoHS3 compliance
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH status: REACH Unaffected

All identified substitute parts meet these criteria and are available from active manufacturers, ensuring long-term component availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 7447860022 (Würth Elektronik WE-MK Series)

The Würth Elektronik 7447860022 is the recommended direct substitute for the obsolete L0603C2N2SRMST. This component maintains full electrical and mechanical equivalence across all critical parameters. The part is in active production status, ensuring reliable long-term availability. It carries ROHS3 compliance and REACH Unaffected certification, meeting current regulatory requirements. The extended operating temperature range of -55°C to 125°C provides additional thermal margin compared to the original component.

Secondary Substitute: ILC0603ER2N2S (Vishay Dale ILC-0603 Series)

The Vishay Dale ILC0603ER2N2S provides an alternative equivalent option with identical electrical specifications and package compatibility. This component is also in active production with ROHS3 compliance and REACH Unaffected status. The extended operating temperature range of -55°C to 125°C matches the Würth Elektronik alternative. Lower current inventory levels (939 units) compared to the primary substitute may affect lead time considerations.

Both substitute parts are electrically and mechanically interchangeable with the L0603C2N2SRMST and require no circuit modifications for implementation.

Frequently Asked Questions (FAQ)

Q: Can the 7447860022 or ILC0603ER2N2S be used as direct replacements for the L0603C2N2SRMST without circuit modifications?

A: Yes. Both substitute parts maintain identical inductance values (2.2 nH ±0.3 nH), current ratings (300 mA), DC resistance specifications (100 mOhm maximum), and package designations (0603 / 1608 Metric). No circuit design changes are required.

Q: What are the key differences between the substitute parts?

A: The primary differences are manufacturer identity and product series designation. The Würth Elektronik 7447860022 belongs to the WE-MK series, while the Vishay Dale ILC0603ER2N2S belongs to the ILC-0603 series. Both maintain equivalent electrical performance and compliance certifications. Inventory availability and supplier lead times may differ.

Q: Are there any temperature range considerations when substituting these parts?

A: The original L0603C2N2SRMST operates from -40°C to 85°C. Both substitute parts extend this range to -55°C to 125°C, providing enhanced thermal performance. Applications operating within the original temperature specification will function identically with either substitute.

Q: Do the substitute parts have the same moisture sensitivity rating?

A: Yes. All three components carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity limitations during storage or handling.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both the 7447860022 and ILC0603ER2N2S are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the physical size difference between the original and substitute parts?

A: The original L0603C2N2SRMST has a maximum seated height of 0.028" (0.71 mm). Both substitute parts have a maximum seated height of 0.037" (0.95 mm). This difference remains within standard PCB assembly tolerances for 0603 package components and does not affect circuit board layout compatibility.

Q: Which substitute part should be selected for new designs?

A: Either substitute part is suitable for new designs. Selection should be based on supplier availability, lead time requirements, and established procurement relationships. Both parts provide equivalent electrical performance and long-term supply assurance through active production status.