SPD62R-273M Equivalent & Substitute Parts

Part Overview

The SPD62R-273M is a 27 µH shielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 940 mA with a maximum DC resistance of 450 mOhm. This component is actively manufactured and suitable for surface mount applications requiring compact form factors with ferrite core construction. Substitute parts are necessary when the primary component is unavailable, when inventory constraints require sourcing from alternative manufacturers, or when design specifications permit higher current handling or improved electrical characteristics.

Substiute Parts

SPD62R-273M

API Delevan Inc.In Stock: 879SPD62R-273M Datasheet

Current PartRFQ

SRR5028-270Y

Bourns Inc.In Stock: 2405SRR5028-270Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SRR5028-270Y by Bourns Inc. qualifies as a direct substitute for the SPD62R-273M based on the following critical electrical and mechanical parameters:

Matching Parameters:

• Inductance: 27 µH (identical)
• Core Type: Ferrite, drum core, wirewound (identical construction)
• Shielding: Shielded (identical)
• Mounting: Surface mount (identical)
• Height: 0.118" (3.00mm) (identical)
• Operating Temperature Range: -55°C to 125°C or better (-40°C to 125°C for substitute)
• Packaging: Tape & Reel (identical)
• Compliance: ROHS3 and REACH (identical)

Differentiated Parameters: The substitute accepts higher current ratings and offers improved DC resistance characteristics, enabling applications requiring enhanced thermal performance or greater current headroom without loss of primary function.

Parameter Comparison

Engineering Selection Recommendations

Both the SPD62R-273M and SRR5028-270Y are active products with ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for modern electronics manufacturing. Selection between these components should be based on supply availability, application current requirements, and tolerance specifications. The SPD62R-273M offers tighter inductance tolerance (±20%), while the SRR5028-270Y provides superior DC resistance performance (160 mOhm versus 450 mOhm) and marginally higher current handling capability (1.05 A versus 940 mA).

Frequently Asked Questions (FAQ)

Q: Can the SRR5028-270Y directly replace the SPD62R-273M in a production circuit? A: Yes. Both components share identical inductance values (27 µH), core construction (ferrite drum core, shielded), mounting type (surface mount), and package height (3.00mm). The substitute offers improved electrical characteristics with lower DC resistance.

Q: What are the critical substitution criteria for these inductors? A: Inductance value, core shielding, saturation current threshold, and physical footprint height are the primary substitution criteria. Both parts maintain these specifications within acceptable engineering tolerances.

Q: Does the different PCB footprint size of the SRR5028-270Y affect compatibility? A: The SRR5028-270Y is slightly smaller (5.80mm x 5.80mm versus 6.60mm x 6.20mm). This may affect PCB layout compatibility if the design has tight spacing constraints, but the identical height ensures proper clearance for solder reflow processes.

Q: How do tolerance differences impact circuit performance? A: The SPD62R-273M specifies ±20% tolerance versus ±30% for the SRR5028-270Y. Applications requiring tighter inductance precision should prioritize the SPD62R-273M. Most standard filtering and impedance-matching applications function reliably within both tolerance ranges.

Q: Are there temperature operating range restrictions? A: The SPD62R-273M operates across -55°C to 125°C, while the SRR5028-270Y operates from -40°C to 125°C. Applications requiring extended low-temperature operation below -40°C require the SPD62R-273M.