SCRH62B-270 Equivalent & Substitute Parts

Part Overview

The SCRH62B-270 is a 27 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 890 mA continuous current with a maximum DC resistance of 380 mOhm. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part operates across an industrial temperature range of -40°C to 125°C and meets ROHS3 compliance requirements.

Substiute Parts

SCRH62B-270

Signal TransformerIn Stock: 1023SCRH62B-270 Datasheet

Current PartRFQ

CDR6D28MNNP-270NC

Sumida America Components Inc.In Stock: 694CDR6D28MNNP-270NC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCRH62B-270 is based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance value: 27 µH (tolerance range acceptable within ±25%)
• Current rating: minimum 890 mA continuous
• Saturation current: minimum 660 mA
• DC resistance: lower values preferred to reduce power dissipation
• Shielding: required for EMI containment

Mechanical Compatibility Criteria:

• Mounting type: Surface Mount only
• Package footprint: 6.50mm x 6.40mm nominal dimensions
• Height: maximum 3.20mm seated height
• Nonstandard package classification

Environmental & Compliance Criteria:

• Operating temperature range: must support -40°C minimum
• RoHS3 compliance: mandatory
• Moisture sensitivity level: 1 (Unlimited)

The CDR6D28MNNP-270NC from Sumida America Components Inc. meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The CDR6D28MNNP-270NC qualifies as a direct substitute for the obsolete SCRH62B-270 based on the following engineering factors:

Electrical Performance: The substitute part exceeds the original specification in current rating (980 mA vs. 890 mA) and saturation current (1.45 A vs. 660 mA), providing improved headroom for transient conditions. The DC resistance is significantly lower (231.2 mOhm vs. 380 mOhm), resulting in reduced power dissipation and improved thermal performance.

Mechanical Compatibility: Both parts maintain identical surface mount mounting type and compatible footprint dimensions. The substitute part offers a lower seated height (3.00mm vs. 3.20mm), which may provide additional PCB layout flexibility.

Compliance & Availability: Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The CDR6D28MNNP-270NC carries active product status with current inventory availability (629 pcs), ensuring long-term supply continuity compared to the obsolete SCRH62B-270.

Temperature Consideration: The substitute part operates to 105°C maximum, compared to the original 125°C upper limit. Applications requiring operation above 105°C require thermal analysis to confirm suitability.

Frequently Asked Questions (FAQ)

Q: Can the CDR6D28MNNP-270NC directly replace the SCRH62B-270 without PCB modifications?

A: Yes. Both parts share identical inductance values (27 µH), surface mount mounting type, and compatible footprint dimensions (6.50mm x 6.40mm nominal). The substitute part's lower seated height (3.00mm vs. 3.20mm) requires no design changes.

Q: What is the impact of the lower DC resistance in the substitute part?

A: The CDR6D28MNNP-270NC exhibits 231.2 mOhm maximum DC resistance compared to 380 mOhm in the original part. This 39% reduction in resistance decreases I²R power dissipation, improving thermal performance and efficiency in the application circuit.

Q: Are there temperature range limitations with the substitute part?

A: The CDR6D28MNNP-270NC operates from -40°C to 105°C, compared to the original -40°C to 125°C range. Applications requiring sustained operation above 105°C must evaluate thermal conditions to confirm the substitute part remains within safe operating limits.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SCRH62B-270 and CDR6D28MNNP-270NC are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both parts are suitable for equivalent compliance requirements.

Q: What is the packaging difference between these parts?

A: The original SCRH62B-270 is supplied in standard packaging. The CDR6D28MNNP-270NC is supplied in Tape & Reel (TR) format, which is standard for high-volume production environments and offers improved handling efficiency.

Q: How do the inductance tolerances compare?

A: The SCRH62B-270 specifies ±20% tolerance, while the CDR6D28MNNP-270NC specifies ±25% tolerance. Both tolerances are acceptable for typical inductor applications. Circuit designs should account for the wider tolerance range of the substitute part if inductance precision is critical.