SCRH62B-390 Equivalent & Substitute Parts

Part Overview

The SCRH62B-390 is a 39 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 790 mA continuous current with a maximum DC resistance of 490 mOhm. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates across the temperature range of -40°C to 125°C and is ROHS3 compliant with unlimited moisture sensitivity rating.

Substiute Parts

SCRH62B-390

Signal TransformerIn Stock: 942SCRH62B-390 Datasheet

Current PartRFQ

CDR6D28MNNP-390NC

Sumida America Components Inc.In Stock: 926CDR6D28MNNP-390NC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CDR6D28MNNP-390NC from Sumida America Components Inc. qualifies as a substitute based on the following critical parameters:

Inductance value matches at 39 µH, meeting the core functional requirement. Both parts are shielded surface mount inductors with nonstandard package geometries and operate within overlapping temperature ranges. The substitute part maintains ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility.

The substitute demonstrates improved electrical performance characteristics: higher current rating (900 mA vs. 790 mA), lower DC resistance (335 mOhm vs. 490 mOhm), and higher saturation current (1.15 A vs. 540 mA). These parameters indicate the substitute can handle equivalent or greater stress levels in the application circuit.

Physical dimensions are comparable with minimal variation in length and width (6.50mm x 6.50mm vs. 6.50mm x 6.40mm), and height difference of 0.20mm (3.00mm vs. 3.20mm) remains within typical PCB layout tolerances for surface mount assembly.

Parameter Comparison

Engineering Selection Recommendations

The CDR6D28MNNP-390NC is the qualified substitute for the obsolete SCRH62B-390. Selection of this part is supported by:

Active product status ensures long-term availability and supply chain continuity, addressing the primary limitation of the original obsolete component. Both parts maintain ROHS3 compliance and identical MSL 1 ratings, confirming regulatory equivalence for manufacturing and environmental requirements.

The substitute part demonstrates superior electrical performance with lower DC resistance and higher current handling capability, providing design margin in applications where the original part operated near maximum ratings. The inductance value and tolerance remain compatible with circuit design specifications.

Physical dimensions are compatible with existing PCB layouts designed for the SCRH62B-390, with height variation of 0.20mm remaining within standard surface mount assembly tolerances. Tape & Reel packaging of the substitute supports automated assembly processes.

The operating temperature range of the substitute extends to 105°C, which is lower than the original part's 125°C maximum. Applications requiring operation above 105°C require thermal analysis to confirm the substitute remains within acceptable operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the CDR6D28MNNP-390NC directly replace the SCRH62B-390 in existing designs?

A: Yes. Both parts share identical 39 µH inductance values, shielded construction, surface mount configuration, and compatible physical dimensions. The substitute meets or exceeds the electrical performance requirements of the original part.

Q: What is the impact of the 0.20mm height difference between the two parts?

A: The height variation from 3.20mm to 3.00mm is within standard PCB assembly tolerances and does not require layout modifications. Clearance verification with surrounding components is recommended as standard practice.

Q: Does the lower operating temperature maximum of the substitute affect compatibility?

A: The substitute operates to 105°C versus the original 125°C. Applications requiring sustained operation above 105°C require thermal analysis to confirm the substitute remains within acceptable operating conditions for the specific circuit environment.

Q: How do the inductance tolerances compare?

A: The original part specifies ±20% tolerance while the substitute specifies ±25%. Both tolerances are within typical inductor specifications. Circuit designs must account for the wider tolerance range of the substitute during component selection.

Q: What packaging format is available for the substitute part?

A: The CDR6D28MNNP-390NC is supplied in Tape & Reel format, supporting automated assembly processes. This packaging format is standard for surface mount production environments.

Q: Are both parts RoHS compliant?

A: Yes. Both the SCRH62B-390 and CDR6D28MNNP-390NC are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, confirming regulatory equivalence.