SCRH73B-100 Equivalent & Substitute Parts

Part Overview

The SCRH73B-100 is a 10 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.68 A continuous current with a maximum DC resistance of 72 mOhm. This component is designed for applications requiring compact, shielded inductance in nonstandard package configurations. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

SCRH73B-100

Signal TransformerIn Stock: 897SCRH73B-100 Datasheet

Current PartRFQ

CDRH73NP-100MC-B

Sumida America Components Inc.In Stock: 910CDRH73NP-100MC-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CDRH73NP-100MC-B from Sumida America Components Inc. qualifies as a direct substitute based on the following critical parameters:

• Inductance value: 10 µH with ±20% tolerance
• Current rating: 1.68 A continuous
• DC resistance: 72 mOhm maximum
• Shielding configuration: Shielded
• Mounting technology: Surface mount
• Test frequency: 1 kHz
• Compliance certifications: ROHS3 compliant with MSL 1 rating
• Packaging: Tape & Reel format

The substitute part maintains electrical equivalence across all specified performance parameters. Physical dimensions differ slightly (7.30 mm × 7.30 mm vs. 7.80 mm × 7.80 mm), and the operating temperature maximum is reduced from 125°C to 100°C. These variations remain within acceptable substitution criteria for applications operating within the lower temperature range.

Parameter Comparison

Engineering Selection Recommendations

The CDRH73NP-100MC-B is electrically and mechanically compatible with the SCRH73B-100 for applications operating within -40°C to 100°C. Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring equivalent environmental and regulatory performance. The substitute part features a ferrite core material and slightly reduced physical footprint, which may provide layout advantages in space-constrained designs. Selection between these parts should be based on availability, lead time requirements, and thermal operating envelope specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can CDRH73NP-100MC-B replace SCRH73B-100 in all applications?

A: The substitute part is electrically equivalent across all specified parameters. However, applications requiring operation above 100°C must use the original SCRH73B-100, which is rated to 125°C. Physical dimensions differ by approximately 0.5 mm, requiring verification of PCB layout compatibility.

Q: What are the critical parameters for substitution?

A: Inductance value (10 µH), tolerance (±20%), current rating (1.68 A), DC resistance (72 mOhm max), and shielding configuration must remain constant. These parameters define functional equivalence in inductor selection.

Q: Are both parts available in the same packaging format?

A: Yes, both SCRH73B-100 and CDRH73NP-100MC-B are supplied in Tape & Reel (TR) packaging for automated assembly processes.

Q: What is the significance of the ferrite core material in the substitute part?

A: The ferrite core in CDRH73NP-100MC-B is specified in the manufacturer data. Both parts achieve identical inductance and DC resistance specifications at the 1 kHz test frequency, confirming functional equivalence regardless of core material differences.

Q: How do the physical dimensions affect substitution?

A: The CDRH73NP-100MC-B is 0.5 mm smaller in length and width (7.30 mm vs. 7.80 mm) and 0.1 mm lower in height. PCB footprint and component placement must be verified to ensure mechanical compatibility in the target assembly.