SCMS5D20-2R2 Equivalent & Substitute Parts

Part Overview

The SCMS5D20-2R2 is a 2.2 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 2.37 A continuous current with a maximum DC resistance of 47mOhm. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

SCMS5D20-2R2

Signal TransformerIn Stock: 893SCMS5D20-2R2 Datasheet

Current PartRFQ

IFSC1515AHER2R2M01

Vishay DaleIn Stock: 28172IFSC1515AHER2R2M01 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCMS5D20-2R2 is determined by the following critical parameters:

• Inductance Value: Must be 2.2 µH at 100 kHz test frequency
• Shielding Configuration: Must be shielded to maintain electromagnetic isolation
• Mounting Technology: Must be surface mount compatible
• Current Handling: Substitute must support minimum 2.37 A continuous current rating
• DC Resistance: Lower or equivalent DCR values are acceptable; higher values may impact circuit performance
• Operating Temperature: Must support -40°C to 125°C range or broader
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The IFSC1515AHER2R2M01 from Vishay Dale meets these substitution criteria with improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The IFSC1515AHER2R2M01 is the qualified substitute for the obsolete SCMS5D20-2R2. Selection is based on:

• Product Status: The substitute is active production, ensuring long-term availability and supply chain stability
• Electrical Equivalence: Identical inductance value with tighter tolerance (±20% vs ±30%), lower maximum DCR (45 mOhm vs 47 mOhm), and higher current ratings (3 A vs 2.37 A)
• Compliance Alignment: Both components maintain ROHS3 compliance, MSL 1 rating, and EAR99 export classification
• Temperature Performance: The substitute supports an extended lower temperature limit (-55°C vs -40°C), providing broader operational envelope
• Physical Compatibility: Both are surface mount shielded inductors with nonstandard package configurations

Frequently Asked Questions (FAQ)

Q: Can the IFSC1515AHER2R2M01 directly replace the SCMS5D20-2R2 in existing designs?

A: Yes. The substitute meets or exceeds all critical electrical parameters: identical inductance, lower DCR, higher current rating, and tighter tolerance. Both components are shielded surface mount inductors with identical test frequency and compliance certifications.

Q: What is the impact of the tighter inductance tolerance on circuit performance?

A: The IFSC1515AHER2R2M01 offers ±20% tolerance versus ±30% for the original part. This represents improved manufacturing consistency and may reduce circuit tuning variation, particularly in frequency-dependent applications.

Q: Are there physical footprint differences between these parts?

A: Yes. The SCMS5D20-2R2 measures 5.20mm × 5.20mm × 2.10mm (height), while the IFSC1515AHER2R2M01 measures 4.00mm × 4.00mm × 1.90mm. PCB layout verification is required before implementation.

Q: Does the lower DC resistance of the substitute affect thermal performance?

A: The IFSC1515AHER2R2M01 has 45 mOhm maximum DCR compared to 47 mOhm for the original part. Lower DCR reduces resistive losses and heat generation, providing marginal thermal improvement in the same operating conditions.

Q: Are both parts RoHS compliant?

A: Yes. Both the SCMS5D20-2R2 and IFSC1515AHER2R2M01 are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), meeting current environmental and reliability standards.