UP2-221-R Equivalent & Substitute Parts Reference

Part Overview

The UP2-221-R is a 220 µH unshielded wirewound surface mount inductor manufactured by Eaton Electronics Division, part of the UNI-PAC™ 2 series. This component is rated for 930 mA continuous current with a maximum DC resistance of 636 mOhm and operates at 100 kHz test frequency. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent inductance values, tolerance specifications, and mounting characteristics align with the main part's electrical and mechanical requirements, enabling direct replacement in surface mount applications.

Substiute Parts

UP2-221-R

Eaton - Electronics DivisionIn Stock: 1029UP2-221-R Datasheet

Current PartRFQ

B82476A1224M000

EPCOS - TDK ElectronicsIn Stock: 2086B82476A1224M000 Datasheet

SimilarRFQ

B82476B1224M100

EPCOS - TDK ElectronicsIn Stock: 2135B82476B1224M100 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UP2-221-R are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 220 µH (exact match required)
• Inductance tolerance: ±20% (matching specification)
• Mounting type: Surface Mount (identical)
• Shielding configuration: Unshielded (matching)
• Test frequency: 100 kHz (matching)
• Package type: Nonstandard (matching physical form factor)

Secondary Compatibility Parameters:

• Current rating: Minimum 800 mA (acceptable for applications rated up to 930 mA with thermal derating consideration)
• DC resistance: Maximum 530 mOhm to 636 mOhm (within acceptable range for equivalent performance)
• RoHS3 compliance: Required for regulatory alignment
• MSL rating: 1 (Unlimited) for moisture sensitivity compatibility

The substitute parts B82476A1224M000 and B82476B1224M100 from EPCOS-TDK Electronics meet these criteria with ferrite drum core construction, matching the unshielded wirewound classification and surface mount configuration of the main part.

Parameter Comparison

Engineering Selection Recommendations

UP2-221-R (Eaton Electronics): Primary selection for applications requiring the specified 930 mA current rating and 636 mOhm maximum DC resistance. Active product status with full RoHS3 compliance and unlimited MSL rating supports standard commercial and industrial surface mount applications.

B82476A1224M000 (EPCOS-TDK): Suitable for applications with maximum current requirements of 800 mA. Features ferrite drum core construction with lower DC resistance (530 mOhm) and defined operating temperature range (-55°C ~ 150°C). Active product status with RoHS3 compliance and REACH unaffected designation. Appropriate for general-purpose surface mount inductor replacement.

B82476B1224M100 (EPCOS-TDK): Suitable for applications with maximum current requirements of 880 mA. Includes AEC-Q200 automotive qualification rating in addition to ferrite drum core construction, lower DC resistance (530 mOhm), and defined operating temperature range (-55°C ~ 150°C). Active product status with RoHS3 compliance and REACH unaffected designation. Appropriate for automotive-grade surface mount inductor applications or where automotive-level reliability is required.

Selection between substitute parts depends on current rating requirements and whether automotive qualification (AEC-Q200) is mandated by application specifications.

Frequently Asked Questions (FAQ)

Q: Can B82476A1224M000 or B82476B1224M100 directly replace UP2-221-R in all applications?

A: Direct replacement is possible when the application current requirement does not exceed 880 mA. The UP2-221-R is rated for 930 mA; therefore, applications operating at currents between 880 mA and 930 mA require thermal derating analysis or selection of B82476B1224M100 (880 mA rating) with appropriate margin. Applications below 880 mA current are compatible with both substitute parts.

Q: What is the significance of the lower DC resistance in the substitute parts?

A: The substitute parts B82476A1224M000 and B82476B1224M100 feature 530 mOhm maximum DC resistance compared to the UP2-221-R's 636 mOhm maximum. Lower DC resistance reduces resistive losses and heat generation during operation, which is advantageous in power-sensitive applications. This parameter difference does not prevent substitution but may improve thermal performance.

Q: Are the physical dimensions compatible between the main part and substitutes?

A: All three parts are classified as Nonstandard package type with similar physical dimensions. UP2-221-R measures 0.541" L x 0.345" W x 0.231" H (13.74mm x 8.76mm x 5.86mm). Substitute parts measure 0.510" L x 0.370" W x 0.200" H (12.95mm x 9.40mm x 5.08mm). Slight dimensional differences require verification of PCB layout and component placement clearances before substitution.

Q: What is the difference between B82476A1224M000 and B82476B1224M100?

A: Both parts share identical inductance (220 µH), tolerance (±20%), DC resistance (530 mOhm max), and physical dimensions. The primary differences are: (1) Current rating: B82476A1224M000 is rated 800 mA; B82476B1224M100 is rated 880 mA; (2) Saturation current: Both specify 800 mA Isat; (3) Ratings: B82476B1224M100 includes AEC-Q200 automotive qualification; B82476A1224M000 does not. Selection depends on current requirement and automotive qualification necessity.

Q: Are all three parts RoHS3 compliant?

A: Yes. UP2-221-R, B82476A1224M000, and B82476B1224M100 are all ROHS3 Compliant. Additionally, both EPCOS-TDK substitute parts carry REACH Unaffected designation, confirming regulatory alignment for European and international markets.

Q: What does MSL 1 (Unlimited) mean for these inductors?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. All three parts carry this rating, eliminating moisture sensitivity concerns during procurement, warehousing, and assembly processes.