ASPI-0804T-4R7M-T Equivalent & Substitute Parts

Part Overview

The ASPI-0804T-4R7M-T is a 4.7 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 5.4 A continuous current with 18mOhm maximum DC resistance. This surface mount component operates across -40°C to 85°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production. Equivalent and substitute parts are identified based on matching inductance value, tolerance, core type, shielding configuration, and mechanical compatibility within the nonstandard package class.

Substiute Parts

ASPI-0804T-4R7M-T

Abracon LLCIn Stock: 999ASPI-0804T-4R7M-T Datasheet

Current PartRFQ

B82476A1472M000

EPCOS - TDK ElectronicsIn Stock: 1126B82476A1472M000 Datasheet

MFR RecommendedRFQ

B82476B1472M100

EPCOS - TDK ElectronicsIn Stock: 6443B82476B1472M100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ASPI-0804T-4R7M-T are qualified based on the following criteria:

Electrical Parameters (Primary):

• Inductance value: 4.7 µH (exact match required)
• Inductance tolerance: ±20% (exact match required)
• Core type: Drum core, wirewound ferrite (exact match required)
• Shielding: Unshielded (exact match required)
• Inductance test frequency: 100 kHz (exact match required)

Mechanical Parameters (Secondary):

• Mounting type: Surface mount (exact match required)
• Package class: Nonstandard (exact match required)
• Physical dimensions: 0.510" L x 0.370" W (12.95mm x 9.40mm) (exact match required)

Current and Resistance Parameters (Application-Dependent):

• Current rating and DC resistance may vary within acceptable limits for the application, provided the substitute part meets or exceeds the original specification for the intended circuit function.

Compliance and Environmental:

• RoHS3 compliance required
• MSL 1 rating required
• Operating temperature range may extend beyond the original specification

The following parts meet these substitution criteria:

• B82476A1472M000 (EPCOS - TDK Electronics)
• B82476B1472M100 (EPCOS - TDK Electronics)

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with ROHS3 compliance and MSL 1 ratings, meeting the environmental and regulatory requirements of the original component.

B82476A1472M000: This part provides a lower current rating (4.8 A) compared to the original 5.4 A specification. Selection of this part is appropriate only when circuit requirements do not exceed 4.8 A continuous current. DC resistance is reduced to 16.5mOhm maximum, providing improved thermal performance. Operating temperature range extends to -55°C ~ 150°C, exceeding the original specification.

B82476B1472M100: This part maintains a current rating of 5.3 A, closely matching the original 5.4 A specification. DC resistance is 16.5mOhm maximum, providing improved thermal performance. Operating temperature range extends to -55°C ~ 150°C. This part carries AEC-Q200 automotive qualification, indicating additional reliability testing and process controls beyond standard commercial requirements.

Both substitute parts feature identical physical dimensions and package specifications, ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can B82476A1472M000 be used as a direct replacement for ASPI-0804T-4R7M-T?

A: B82476A1472M000 is electrically and mechanically compatible with the original part. However, the current rating is reduced from 5.4 A to 4.8 A. This part is suitable only if the circuit operates at or below 4.8 A continuous current. The lower DC resistance (16.5mOhm vs 18mOhm) provides a performance advantage in thermal management.

Q: What is the difference between B82476A1472M000 and B82476B1472M100?

A: Both parts share identical inductance, tolerance, core type, shielding, and physical dimensions. The primary differences are: B82476B1472M100 maintains a higher current rating (5.3 A vs 4.8 A), and carries AEC-Q200 automotive qualification. Both feature 16.5mOhm maximum DC resistance and extended operating temperature range to -55°C ~ 150°C.

Q: Are the physical dimensions identical between all three parts?

A: The length and width are identical at 0.510" L x 0.370" W (12.95mm x 9.40mm). The seated height differs slightly: the original part is 0.205" (5.21mm) maximum, while both substitute parts are 0.200" (5.08mm) maximum. This 0.05mm difference is within typical PCB assembly tolerances and does not affect mechanical compatibility.

Q: Do all parts meet RoHS3 compliance?

A: Yes. The original ASPI-0804T-4R7M-T and both substitute parts (B82476A1472M000 and B82476B1472M100) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute part should be selected for automotive applications?

A: B82476B1472M100 carries AEC-Q200 automotive qualification, indicating compliance with automotive reliability and testing standards. This part is the appropriate selection for automotive circuit applications requiring qualified component documentation.

Q: How do the operating temperature ranges compare?

A: The original ASPI-0804T-4R7M-T operates from -40°C to 85°C. Both substitute parts extend this range to -55°C to 150°C, providing broader environmental operating capability. Applications requiring the original temperature range are fully supported by both substitute parts.