SPD74-224M Equivalent & Substitute Parts

Part Overview

The SPD74-224M is a 220 µH shielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 600 mA continuous current with a maximum DC resistance of 1.17 Ohm. This component operates across the temperature range of -55°C to 125°C and is designed for surface mount applications in nonstandard packaging.

The SPD74-224M carries an obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor specification.

Substiute Parts

SPD74-224M

API Delevan Inc.In Stock: 1056SPD74-224M Datasheet

Current PartRFQ

HRSPD74-224M

API Delevan Inc.In Stock: 1231HRSPD74-224M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPD74-224M is evaluated based on the following critical parameters:

Primary Matching Criteria:

• Inductance value: 220 µH with ±20% tolerance
• Core material: Ferrite with shielding
• Mounting type: Surface Mount
• Physical footprint compatibility: Nonstandard package dimensions
• Operating temperature range: Minimum -55°C to 125°C

Secondary Compatibility Factors:

• Current rating and saturation current specifications
• DC resistance characteristics
• Manufacturer series lineage and design continuity

The HRSPD74-224M qualifies as a substitute part based on matching inductance, core material, shielding configuration, and surface mount design. However, differences in current rating, DC resistance, and operating temperature ceiling must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

SPD74-224M (Obsolete Status): The SPD74-224M is classified as obsolete. New designs should not incorporate this part number. Existing applications utilizing this inductor require transition planning to an active equivalent.

HRSPD74-224M (Active Substitute): The HRSPD74-224M is an active product from API Delevan Inc. and represents the current generation equivalent within the same manufacturer's product line. This part maintains the core electrical specification of 220 µH inductance with ferrite shielding and surface mount configuration.

Critical Substitution Constraint: The HRSPD74-224M current rating of 380 mA is lower than the SPD74-224M specification of 600 mA. Applications requiring the full 600 mA current capacity cannot use this substitute without circuit redesign or thermal management modifications. Substitution is valid only for applications operating at or below 380 mA continuous current.

Compliance Considerations: Both parts carry RoHS non-compliant status. The HRSPD74-224M includes Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating superior moisture handling characteristics compared to the obsolete SPD74-224M.

Frequently Asked Questions (FAQ)

Q: Can the HRSPD74-224M directly replace the SPD74-224M in all applications?

A: Direct replacement is valid only for applications operating at continuous currents of 380 mA or below. The HRSPD74-224M current rating is 220 mA lower than the original specification. Applications requiring 600 mA saturation current must be redesigned or use alternative components.

Q: What are the physical compatibility considerations?

A: Both parts use nonstandard packaging with similar footprints. The HRSPD74-224M dimensions are 7.37mm x 7.37mm x 5.03mm compared to the SPD74-224M at 7.30mm x 7.30mm x 4.70mm. Height difference of 0.33mm may require PCB layout verification in space-constrained applications.

Q: Are there differences in thermal performance?

A: The HRSPD74-224M operates to 130°C maximum, providing 5°C additional headroom compared to the SPD74-224M at 125°C. The HRSPD74-224M exhibits lower DC resistance (1.05 Ohm Max versus 1.17 Ohm Max), resulting in reduced resistive heating under identical current conditions.

Q: What is the significance of the packaging format change?

A: The SPD74-224M uses nonstandard packaging, while the HRSPD74-224M is supplied in Tape & Reel (TR) format. This improves handling efficiency and supply chain compatibility for production environments.

Q: How do the inductance test frequencies differ?

A: The SPD74-224M inductance is tested at 1 kHz, while the HRSPD74-224M uses 10 kHz test frequency. Both maintain the same 220 µH ±20% specification, indicating consistent inductance performance across the frequency range relevant to typical applications.

Q: What compliance status applies to both parts?

A: Both the SPD74-224M and HRSPD74-224M are RoHS non-compliant and REACH Unaffected. Applications requiring RoHS compliance cannot use either part without alternative component selection.