SPD127-682M Equivalent & Substitute Parts

Part Overview

The SPD127-682M is a 6.8 µH shielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 6.2 A continuous current with a maximum DC resistance of 30 mOhm. This component is designed for surface mount applications in nonstandard package configurations and operates across the temperature range of -55°C to 125°C.

The SPD127-682M is classified as obsolete. Identifying 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

SPD127-682M

API Delevan Inc.In Stock: 759SPD127-682M Datasheet

Current PartRFQ

HRSPD127-682M

API Delevan Inc.In Stock: 1034HRSPD127-682M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPD127-682M is determined by the following mandatory parameters:

Inductance Value: The substitute part must provide 6.8 µH inductance with ±20% tolerance to maintain circuit functionality and frequency response characteristics.

Shielding Configuration: The substitute must be shielded to ensure equivalent electromagnetic interference suppression and isolation properties.

Core Material: Ferrite core material is required to match saturation behavior and frequency response of the original component.

DC Resistance: The substitute must maintain 30 mOhm maximum DC resistance to ensure equivalent power dissipation and thermal performance.

Mounting Type: Surface mount configuration is mandatory for PCB assembly compatibility.

Current Rating Consideration: While the substitute may have a different continuous current rating, the component must be capable of handling the application's maximum current demand without saturation or thermal failure.

The HRSPD127-682M qualifies as a substitute based on these criteria. However, the reduced continuous current rating (4.5 A versus 6.2 A) requires engineering evaluation to confirm suitability for the specific application's current profile.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The SPD127-682M is classified as obsolete, while the HRSPD127-682M is active and currently manufactured. Selection of the active substitute part ensures long-term supply chain viability and continued availability for production and field service applications.

Compliance Alignment: Both parts share identical RoHS non-compliance status and ECCN/HTSUS classifications, ensuring regulatory consistency in applications where these designations are relevant.

Current Rating Differential: The HRSPD127-682M is rated for 4.5 A continuous current compared to the SPD127-682M's 6.2 A rating. The substitute's saturation current of 6.84 A indicates capability to handle transient overcurrent conditions. Selection of this substitute is appropriate only when the application's sustained current demand does not exceed 4.5 A.

Physical Dimensions: The substitute exhibits minimal dimensional variation in length and width (0.07mm increase in each direction). The height increase of 1.02mm must be evaluated against PCB clearance constraints and assembly equipment specifications.

Temperature Range: The HRSPD127-682M provides an extended upper operating temperature limit of 130°C versus 125°C for the original part, offering improved thermal margin in high-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can the HRSPD127-682M directly replace the SPD127-682M in all applications?

A: Direct replacement is possible only when the application's maximum sustained current does not exceed 4.5 A. The substitute part's lower continuous current rating is the primary limiting factor. Applications requiring the full 6.2 A continuous rating of the original part require alternative solutions or circuit redesign.

Q: What is the significance of the saturation current specification provided for the HRSPD127-682M?

A: The saturation current (Isat) of 6.84 A indicates the current level at which the inductor's inductance begins to degrade due to core saturation. This specification is not provided for the original SPD127-682M. The substitute's saturation current exceeds its continuous rating, providing margin for transient current spikes while maintaining inductance stability during normal operation.

Q: Are there physical fit concerns when substituting the HRSPD127-682M?

A: The substitute part is 1.02mm taller than the original (9.02mm versus 8.00mm seated height). PCB layout and assembly equipment clearance must be verified. The lateral dimensions are nearly identical (0.07mm variation), presenting minimal concern for footprint compatibility.

Q: Do both parts meet the same regulatory and compliance requirements?

A: Both parts are RoHS non-compliant and share identical ECCN (EAR99) and HTSUS (8504.50.4000) classifications. Regulatory treatment is equivalent for both components.

Q: What packaging format is available for the HRSPD127-682M?

A: The HRSPD127-682M is supplied in Tape & Reel (TR) packaging, which is standard for automated surface mount assembly operations. The original SPD127-682M packaging format is not specified in available data.

Q: How does the extended temperature range of the HRSPD127-682M affect substitution decisions?

A: The substitute's operating range of -55°C to 130°C encompasses the original part's -55°C to 125°C specification. Applications operating at temperatures between 125°C and 130°C benefit from the substitute's extended upper limit. For applications within the original temperature range, both parts are equivalent in this parameter.