SCRH62B-180 Equivalent & Substitute Parts

Part Overview

The SCRH62B-180 is an 18 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.05 A continuous current with a maximum DC resistance of 270mOhm. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part operates across the temperature range of -40°C to 125°C and meets ROHS3 compliance requirements.

Substiute Parts

SCRH62B-180

Signal TransformerIn Stock: 1076SCRH62B-180 Datasheet

Current PartRFQ

CDR6D28MNNP-180NC

Sumida America Components Inc.In Stock: 722CDR6D28MNNP-180NC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCRH62B-180 is based on the following critical parameters:

• Inductance Value: 18 µH (primary functional requirement)
• Current Rating: Minimum 1.05 A continuous current capability
• Saturation Current: Minimum 800mA
• DC Resistance: Maximum 270mOhm to maintain circuit performance
• Shielding: Shielded construction required
• Mounting Type: Surface mount configuration
• Temperature Range: Minimum -40°C to 105°C overlap
• Compliance: ROHS3 compliance maintained

The CDR6D28MNNP-180NC from Sumida America Components Inc. meets all substitution criteria with improved electrical performance characteristics while maintaining mechanical and environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CDR6D28MNNP-180NC is a direct functional substitute for the obsolete SCRH62B-180. Selection is supported by the following factors:

• Compliance Alignment: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory continuity.
• Active Manufacturing Status: The substitute is actively produced by Sumida America Components Inc., providing long-term procurement availability compared to the obsolete main part.
• Electrical Performance: The substitute exceeds the main part specifications in current rating (1.3 A vs. 1.05 A), saturation current (1.75A vs. 800mA), and provides superior DC resistance (150mOhm vs. 270mOhm Max).
• Mechanical Compatibility: Surface mount configuration and footprint dimensions are functionally equivalent, with the substitute offering a lower profile (3.00mm vs. 3.20mm seated height).
• Temperature Consideration: The substitute operates to 105°C maximum, which is 20°C lower than the main part. Applications requiring operation above 105°C require alternative evaluation.

Frequently Asked Questions (FAQ)

Q: Can the CDR6D28MNNP-180NC directly replace the SCRH62B-180 in existing designs?

A: Yes, for applications operating within -40°C to 105°C. The substitute meets or exceeds all critical electrical parameters (inductance, current rating, saturation current, and DC resistance) and maintains identical shielding and surface mount configuration. If your application requires operation above 105°C, alternative parts must be evaluated.

Q: What is the impact of the different inductance tolerances (±20% vs. ±25%)?

A: The substitute has a wider tolerance specification. In circuits where inductance tolerance is critical to performance, component selection and testing procedures should account for this ±25% range rather than ±20%.

Q: Does the lower DC resistance of the substitute affect circuit operation?

A: The substitute's lower DC resistance (150mOhm vs. 270mOhm Max) represents improved performance. Lower resistance reduces power dissipation and heat generation, which is beneficial in most applications. No negative effects are introduced by this improvement.

Q: Are there packaging differences between these parts?

A: The main part packaging is not specified in available data. The substitute is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Confirm packaging requirements for your procurement process.

Q: What is the significance of the substitute's lower profile (3.00mm vs. 3.20mm)?

A: The substitute has a 0.2mm lower seated height. This may provide benefits in space-constrained designs but requires verification that PCB layout and component placement accommodate the slightly different height profile.

Q: Is the substitute suitable for all frequency ranges where the main part was used?

A: Both parts are tested at 100 kHz inductance frequency. For applications using these inductors at significantly different frequencies, frequency-dependent performance characteristics should be evaluated with manufacturer data.