SCRH1035R-330 Equivalent & Substitute Parts

Part Overview

The SCRH1035R-330 is a 33 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.7 A continuous current with a maximum DC resistance of 162 mOhm. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

SCRH1035R-330

Signal TransformerIn Stock: 978SCRH1035R-330 Datasheet

Current PartRFQ

CDRH8D38NP-330NC

Sumida America Components Inc.In Stock: 2187CDRH8D38NP-330NC Datasheet

MFR RecommendedRFQ

SD8328-330-R

Eaton - Electronics DivisionIn Stock: 993SD8328-330-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCRH1035R-330 are qualified based on the following criteria:

• Identical inductance value of 33 µH with ±30% tolerance
• Current rating within acceptable operating range for the application
• DC resistance (DCR) within or below the maximum specification of 162 mOhm
• Shielded construction to maintain electromagnetic isolation
• Surface mount packaging in Tape & Reel format
• Operating temperature range compatibility
• Active product status and equivalent compliance certifications

The CDRH8D38NP-330NC and SD8328-330-R meet these substitution criteria with equivalent electrical characteristics and mechanical form factors suitable for direct replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

CDRH8D38NP-330NC is suitable for applications where the current requirement does not exceed 1.6 A and operating temperature remains within -40°C to 100°C. This substitute offers lower DC resistance (157 mOhm) compared to the primary part and maintains ROHS3 compliance with unlimited moisture sensitivity rating.

SD8328-330-R is suitable for applications requiring the full -40°C to 125°C operating temperature range. This substitute features drum core wirewound construction with DC resistance of 156 mOhm and maintains RoHS compliance. The saturation current of 1.4 A requires verification for applications approaching the 1.7 A rating of the primary part.

Both substitute parts maintain Active product status and equivalent compliance certifications (ECCN EAR99, REACH Unaffected where applicable, and MSL 1).

Frequently Asked Questions (FAQ)

Q: Can CDRH8D38NP-330NC replace SCRH1035R-330 in all applications?

A: CDRH8D38NP-330NC is compatible where continuous current does not exceed 1.6 A and operating temperature remains within -40°C to 100°C. Applications requiring operation above 100°C or sustained currents above 1.6 A require evaluation of the SD8328-330-R alternative.

Q: What is the impact of DC resistance differences between these parts?

A: All three parts maintain DC resistance within 156–162 mOhm, a variation of less than 4%. This difference is within typical circuit tolerance margins for 33 µH inductor applications.

Q: Are the physical dimensions compatible for PCB layout?

A: Physical dimensions differ between parts. SCRH1035R-330 measures 10.50mm × 10.30mm × 3.10mm (height). CDRH8D38NP-330NC measures 8.00mm × 8.00mm × 4.00mm. SD8328-330-R measures 9.50mm × 8.30mm × 3.00mm. PCB footprint and clearance requirements must be verified before substitution.

Q: Do all parts meet the same compliance standards?

A: SCRH1035R-330 and CDRH8D38NP-330NC are ROHS3 compliant. SD8328-330-R is RoHS compliant. All three parts carry ECCN EAR99 classification and MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the saturation current consideration for substitution?

A: Saturation current (Isat) represents the current level at which inductance begins to degrade. SCRH1035R-330 has Isat of 1.9 A, CDRH8D38NP-330NC has 1.75 A, and SD8328-330-R has 1.4 A. Applications operating near maximum current ratings should reference saturation specifications to ensure inductance stability.