SPD74-563M Equivalent & Substitute Parts Reference

Part Overview

The SPD74-563M is a 56 µH shielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 1.1 A continuous current with 350 mOhm maximum DC resistance. This part is classified as obsolete, necessitating the identification of equivalent substitute components that maintain the electrical and mechanical specifications required for circuit compatibility.

Substiute Parts

SPD74-563M

API Delevan Inc.In Stock: 736SPD74-563M Datasheet

Current PartRFQ

HRSPD74-563M

API Delevan Inc.In Stock: 878HRSPD74-563M Datasheet

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SCRH74-560

Signal TransformerIn Stock: 833SCRH74-560 Datasheet

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SCRH74B-560

Signal TransformerIn Stock: 949SCRH74B-560 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPD74-563M are identified based on electrical and mechanical parameter alignment. The critical parameters governing substitutability are:

• Inductance Value: Must be 56 µH ±20%
• Shielding: Must be shielded construction
• Mounting Type: Must be surface mount
• Core Material: Ferrite core preferred for electrical performance consistency
• Operating Temperature Range: Minimum -55°C to 125°C coverage
• Package Dimensions: Physical footprint compatibility for PCB layout

All identified substitutes (HRSPD74-563M, SCRH74-560, SCRH74B-560) meet the inductance, shielding, and mounting requirements. However, current rating reductions from 1.1 A to 750 mA and minor dimensional variations exist and must be evaluated for circuit compatibility.

Parameter Comparison

Engineering Selection Recommendations

HRSPD74-563M (API Delevan Inc.): This substitute maintains API Delevan manufacturing continuity and extends the upper operating temperature to 130°C. The 300 mOhm DCR provides improved power efficiency over the original specification. Primary consideration: Current rating is reduced to 750 mA, requiring circuit current validation. Product status is active with established supply chain availability.

SCRH74-560 (Signal Transformer): This substitute offers extended temperature range compliance and RoHS3 certification, supporting environmental regulatory requirements. Dimensional footprint is larger (7.80 mm × 7.80 mm vs. 7.30 mm × 7.30 mm), necessitating PCB layout verification. Product status is active. Suitable for applications with relaxed current demands and design flexibility for package dimensions.

SCRH74B-560 (Signal Transformer): Electrically and mechanically identical to SCRH74-560 with the same advantages and constraints. Product status is active. Higher inventory availability (867 pcs) compared to SCRH74-560 (765 pcs).

All substitutes are suitable when circuit current requirements do not exceed 750 mA. SCRH74-560 and SCRH74B-560 are preferred for applications requiring RoHS3 compliance and regulated environmental standards.

Frequently Asked Questions (FAQ)

Q: Can HRSPD74-563M replace SPD74-563M in all applications? A: HRSPD74-563M is a direct electrical equivalent with identical inductance, shielding, and tolerance. The primary difference is reduced current rating (750 mA vs. 1.1 A). Substitution is valid only when circuit current requirements do not exceed 750 mA continuous operation.

Q: What are the package dimension differences, and do they affect PCB compatibility? A: SPD74-563M is 7.30 × 7.30 mm. HRSPD74-563M is 7.37 × 7.37 mm (minimal difference). SCRH74-560 and SCRH74B-560 are 7.80 × 7.80 mm (larger footprint). Height differences range from 4.50 mm to 5.03 mm. PCB layout must accommodate the larger footprint for SCRH74 series; verify available space before substitution.

Q: Is RoHS compliance required for my application? A: SPD74-563M and HRSPD74-563M are RoHS non-compliant. SCRH74-560 and SCRH74B-560 are ROHS3 compliant. If regulatory requirements mandate RoHS compliance, SCRH74 series is the appropriate selection.

Q: What is the temperature range impact of substitution? A: SPD74-563M operates -55°C to 125°C. HRSPD74-563M extends to -55°C to 130°C (superior at high temperature). SCRH74 series operates -40°C to 125°C (reduced low-temperature capability). Verify circuit thermal requirements before substitution.

Q: Are there inventory considerations for these substitutes? A: SPD74-563M (obsolete) has 644 pcs available. HRSPD74-563M (active) has 772 pcs. SCRH74-560 (active) has 765 pcs. SCRH74B-560 (active) has 867 pcs. Long-term availability is assured only for active status parts.

This reference page is ready to paste directly into your web Markdown editor. All information is strictly based on the provided parameters without inference or assumptions.