SCMS5D25-100 Equivalent & Substitute Parts

Part Overview

The SCMS5D25-100 is a 10 µH shielded inductor manufactured by Signal Transformer, rated for 1.6 A continuous current with a maximum DC resistance of 120 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 857 units available in stock. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory management, or specific performance trade-offs within the defined electrical and mechanical parameters.

Substiute Parts

SCMS5D25-100

Signal TransformerIn Stock: 923SCMS5D25-100 Datasheet

Current PartRFQ

SD20-100-R

Eaton - Electronics DivisionIn Stock: 1288SD20-100-R Datasheet

MFR RecommendedRFQ

VLCF5024T-100MR88-2

TDK CorporationIn Stock: 1269VLCF5024T-100MR88-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCMS5D25-100 is determined by the following critical parameters:

• Inductance value: 10 µH (±20% tolerance)
• Shielding requirement: Shielded construction
• Mounting type: Surface mount
• Package footprint compatibility: 5.20mm x 5.20mm nominal dimensions
• Current rating: Minimum 1.6 A continuous current capability
• DC resistance: Maximum 120 mOhm
• Operating temperature range: Minimum -40°C to 125°C coverage
• RoHS compliance: ROHS3 or equivalent

The identified substitute parts meet the core electrical specifications (inductance, current rating, and DC resistance) and maintain shielded surface mount construction. Variations in saturation current, package height, and operating temperature upper limits represent acceptable trade-offs for equivalent functionality in most applications.

Parameter Comparison

Engineering Selection Recommendations

SD20-100-R (Eaton - Electronics Division): This substitute maintains the 10 µH inductance specification with a current rating of 1.53 A, which is within 4% of the SCMS5D25-100 rating. The DC resistance of 110 mOhm is lower than the maximum 120 mOhm specification, providing improved efficiency. The part is RoHS compliant and features identical package footprint dimensions (5.20mm x 5.20mm). The primary limitation is the reduced operating temperature upper limit of 85°C compared to 125°C for the original part. This substitute is suitable for applications operating within the -40°C to 85°C range.

VLCF5024T-100MR88-2 (TDK Corporation): This substitute provides the lowest DC resistance at 92 mOhm maximum, offering superior thermal performance. The 10 µH inductance and ±20% tolerance match the original specification. However, the current rating of 880 mA is significantly lower than the SCMS5D25-100 rating of 1.6 A, making this part suitable only for applications with reduced current requirements. The operating temperature range extends to 105°C, providing better high-temperature performance than the Eaton substitute. Package footprint is 5.00mm x 5.00mm with a maximum height of 2.40mm, requiring verification of PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SD20-100-R be used as a direct replacement for the SCMS5D25-100 in all applications?

A: The SD20-100-R is electrically compatible for applications operating within -40°C to 85°C. The current rating of 1.53 A supports the same load conditions as the original part. Verify that your application does not require operation above 85°C before substitution.

Q: What is the primary limitation of the VLCF5024T-100MR88-2 substitute?

A: The current rating of 880 mA is 45% lower than the SCMS5D25-100 rating of 1.6 A. This part is suitable only for circuits designed for lower current levels. Do not use this substitute in applications requiring the full 1.6 A current capacity.

Q: Are all three parts pin-compatible?

A: All three parts are surface mount inductors with identical electrical specifications (10 µH, ±20% tolerance, shielded construction). The SD20-100-R and SCMS5D25-100 share identical package footprints (5.20mm x 5.20mm). The VLCF5024T-100MR88-2 has a slightly smaller footprint (5.00mm x 5.00mm), which may require PCB layout verification but remains compatible with standard 5.20mm x 5.20mm pad patterns.

Q: Which substitute offers the best thermal performance?

A: The VLCF5024T-100MR88-2 provides the lowest DC resistance at 92 mOhm maximum, resulting in the lowest power dissipation and heat generation. However, this advantage is offset by its reduced current rating of 880 mA.

Q: Are all substitutes RoHS compliant?

A: Yes. The SCMS5D25-100 is ROHS3 compliant, the SD20-100-R is RoHS compliant, and the VLCF5024T-100MR88-2 is ROHS3 compliant. All parts meet environmental compliance requirements.

Q: What is the moisture sensitivity level for these parts?

A: All three parts carry a Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.