SCRH104R-151 Equivalent & Substitute Parts

Part Overview

The SCRH104R-151 is a 150 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 930 mA continuous current with a maximum DC resistance of 506mOhm. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when they maintain the same inductance value, tolerance, shielding characteristics, and operating temperature range while meeting the electrical requirements of the application circuit.

Substiute Parts

SCRH104R-151

Signal TransformerIn Stock: 1055SCRH104R-151 Datasheet

Current PartRFQ

CDRH104RNP-151NC

Sumida America Components Inc.In Stock: 4276CDRH104RNP-151NC Datasheet

MFR RecommendedRFQ

DR1040-151-R

Eaton - Electronics DivisionIn Stock: 977DR1040-151-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCRH104R-151 are qualified based on the following criteria:

• Inductance value of 150 µH with ±30% tolerance
• Shielded construction to maintain electromagnetic isolation
• Surface mount nonstandard package with compatible footprint dimensions (10.50mm x 10.30mm length and width, 4.00mm maximum seated height)
• Operating temperature range of -40°C to 125°C or higher
• DC resistance within acceptable limits for the application
• Current rating sufficient to support the circuit requirements
• RoHS3 compliance and MSL 1 rating

The identified substitute parts meet these core electrical and mechanical parameters while maintaining compatibility with the original design specifications.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain Active product status and full RoHS3 compliance with MSL 1 rating, ensuring long-term availability and environmental regulatory adherence.

CDRH104RNP-151NC offers increased current rating capacity at 1.15 A with ferrite core construction and identical DC resistance specification. The operating temperature range extends to -40°C ~ 100°C, which is suitable for applications not requiring the full 125°C upper limit of the original part.

DR1040-151-R provides drum core wirewound construction with ferrite material and superior DC resistance performance at 430mOhm maximum, reducing power dissipation. Current rating of 850 mA remains within acceptable margins for most applications. Operating temperature range matches the original specification at -40°C ~ 125°C, and footprint dimensions are identical to the SCRH104R-151.

Frequently Asked Questions (FAQ)

Q: Can CDRH104RNP-151NC be used in applications requiring operation above 100°C?

A: No. The CDRH104RNP-151NC operating temperature range is -40°C ~ 100°C. Applications requiring sustained operation at temperatures between 100°C and 125°C must use SCRH104R-151 or DR1040-151-R.

Q: What is the primary advantage of DR1040-151-R over the original SCRH104R-151?

A: DR1040-151-R features lower DC resistance at 430mOhm maximum compared to 506mOhm maximum, resulting in reduced power dissipation and heat generation in the inductor. This characteristic is beneficial in high-efficiency power conversion applications.

Q: Are all three parts mechanically interchangeable on the PCB?

A: SCRH104R-151 and DR1040-151-R share identical footprint dimensions (10.50mm x 10.30mm) and seated height (4.00mm), ensuring direct mechanical compatibility. CDRH104RNP-151NC has slightly smaller dimensions (10.20mm x 10.00mm) but maintains the same seated height, requiring verification of PCB layout clearances.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. SCRH104R-151, CDRH104RNP-151NC, and DR1040-151-R are all RoHS3 compliant with MSL 1 rating and ECCN EAR99 classification, meeting identical regulatory and environmental requirements.

Q: Which substitute part is recommended for current-limited applications?

A: DR1040-151-R with 850 mA current rating is appropriate for applications with lower current demands. CDRH104RNP-151NC with 1.15 A rating provides headroom for applications approaching the 930 mA specification of the original part.