SCRH105R-150 Equivalent & Substitute Parts

Part Overview

The SCRH105R-150 is a 15 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 4 A continuous current with a maximum DC resistance of 41 mOhm. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching core electrical specifications: 15 µH inductance at ±30% tolerance, shielded construction, surface mount packaging, and compatible current ratings within the specified operating temperature range.

Substiute Parts

SCRH105R-150

Signal TransformerIn Stock: 972SCRH105R-150 Datasheet

Current PartRFQ

CDRH105RNP-150NC

Sumida America Components Inc.In Stock: 1670CDRH105RNP-150NC Datasheet

MFR RecommendedRFQ

DR1050-150-R

Eaton - Electronics DivisionIn Stock: 2486DR1050-150-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCRH105R-150 are qualified based on the following criteria:

Primary Matching Parameters:

• Inductance value: 15 µH at ±30% tolerance
• Shielded construction
• Surface mount configuration
• DC resistance within acceptable range for the application
• RoHS3 compliance
• Moisture Sensitivity Level 1

Current Rating Consideration: Substitute parts must maintain current ratings sufficient for the application. The SCRH105R-150 is rated at 4 A; substitute parts with lower current ratings (3.4 A or 3.8 A) are acceptable where saturation current and thermal characteristics remain within design margins.

Temperature Range: The main part operates from -40°C to 125°C. Substitute CDRH105RNP-150NC operates to 100°C maximum, which represents a reduced upper temperature limit. Substitute DR1050-150-R maintains the full -40°C to 125°C range.

Parameter Comparison

Engineering Selection Recommendations

CDRH105RNP-150NC (Sumida America Components Inc.): This substitute maintains identical inductance, tolerance, and DC resistance specifications. The reduced current rating (3.4 A versus 4 A) and lower saturation current (3.6 A) require circuit-level evaluation. The operating temperature maximum of 100°C is lower than the main part; applications requiring operation above 100°C are not suitable for this substitute. All compliance certifications (RoHS3, MSL 1) are met. Footprint dimensions are slightly smaller (10.20mm x 10.00mm).

DR1050-150-R (Eaton - Electronics Division): This substitute provides superior DC resistance performance (32.5 mOhm versus 41 mOhm), resulting in lower power dissipation. Current rating (3.8 A) and saturation current (3.7 A) are closer to the main part specifications. The full operating temperature range (-40°C to 125°C) matches the main part. All compliance certifications (RoHS3, MSL 1) are met. Footprint dimensions and height are equivalent to the main part. The drum core, wirewound construction type differs from the main part but maintains functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can CDRH105RNP-150NC be used in applications requiring operation above 100°C? A: No. The CDRH105RNP-150NC maximum operating temperature is 100°C. Applications requiring sustained operation above 100°C must use SCRH105R-150 or DR1050-150-R.

Q: What is the impact of lower current ratings in substitute parts? A: The CDRH105RNP-150NC (3.4 A) and DR1050-150-R (3.8 A) have lower continuous current ratings than the main part (4 A). Circuit design must ensure operating current does not exceed the substitute part's rating. Saturation current values must also be evaluated against peak current conditions.

Q: Are the physical dimensions compatible for PCB layout? A: CDRH105RNP-150NC has slightly smaller footprint dimensions (10.20mm x 10.00mm) compared to SCRH105R-150 (10.50mm x 10.30mm). DR1050-150-R matches the main part dimensions exactly. PCB layout compatibility depends on design tolerances and available space.

Q: Does lower DC resistance in DR1050-150-R provide performance benefits? A: DR1050-150-R exhibits 32.5 mOhm maximum DC resistance versus 41 mOhm in the main part, resulting in approximately 21% lower resistive losses. This reduces heat generation and improves efficiency in current-carrying applications.

Q: Are all substitute parts RoHS3 compliant? A: Yes. CDRH105RNP-150NC and DR1050-150-R are both RoHS3 compliant with Moisture Sensitivity Level 1, matching the main part's compliance profile.

Q: What is the difference between drum core and standard core construction? A: DR1050-150-R uses drum core, wirewound construction with ferrite material. This construction type maintains the specified inductance and shielding characteristics while offering improved DC resistance performance. Functional equivalence is maintained for the specified electrical parameters.