UP2-2R2-R Equivalent & Substitute Parts

Part Overview

The UP2-2R2-R is a 2.2 µH unshielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 2 series. This surface mount component is rated for 6.9 A continuous current with a maximum DC resistance of 11.5 mOhm and operates at 100 kHz test frequency. The part is currently active in production with RoHS compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

UP2-2R2-R

Eaton - Electronics DivisionIn Stock: 805UP2-2R2-R Datasheet

Current PartRFQ

B82476B1222M100

EPCOS - TDK ElectronicsIn Stock: 2459B82476B1222M100 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UP2-2R2-R are qualified based on the following critical parameters that must align with the main part specification:

Electrical Parameters (Must Match):

• Inductance value: 2.2 µH
• Inductance tolerance: ±20%
• Current rating: minimum 6.7 A (acceptable within design margin)
• DC resistance: maximum 11.5 mOhm
• Test frequency: 100 kHz
• Shielding configuration: Unshielded

Mechanical Parameters (Must Match):

• Mounting type: Surface Mount
• Package classification: Nonstandard
• Packaging format: Tape & Reel (TR)

Compliance Parameters (Must Match):

• RoHS compliance status
• MSL rating: 1 (Unlimited)

The substitute part B82476B1222M100 from EPCOS - TDK Electronics meets all critical electrical and mechanical requirements. The part exhibits equivalent inductance, tolerance, and DC resistance specifications within acceptable engineering margins. Saturation current and operating temperature range are provided as additional design considerations but do not disqualify substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: UP2-2R2-R

The UP2-2R2-R remains the primary specification for applications where Eaton component qualification is required. This part is active in production, RoHS compliant, and carries MSL 1 rating suitable for standard surface mount assembly processes. Current inventory of 732 pieces supports immediate procurement requirements.

Substitute Part: B82476B1222M100

The B82476B1222M100 qualifies as a direct electrical and mechanical substitute based on matching inductance, tolerance, DC resistance limits, and mounting specifications. This EPCOS - TDK Electronics component offers the following advantages:

• Lower DC resistance (10.5 mOhm vs. 11.5 mOhm maximum) reduces thermal losses
• Higher saturation current (7.0 A vs. 6.1 A) provides additional design margin
• Specified operating temperature range (-55°C ~ 150°C) supports extended environmental applications
• ROHS3 compliance exceeds RoHS baseline requirements
• Higher inventory availability (2412 pieces) supports supply chain continuity
• AEC-Q200 automotive qualification provides additional reliability assurance

Both parts are suitable for direct substitution in applications requiring 2.2 µH inductance at 6.7 A minimum current rating with surface mount packaging. Component selection should be based on procurement availability, cost structure, and specific application environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can B82476B1222M100 be used as a direct replacement for UP2-2R2-R in production assemblies?

A: Yes. Both parts meet identical electrical specifications for inductance (2.2 µH ±20%), DC resistance (maximum 11.5 mOhm), current rating (6.7 A minimum), and mounting type (surface mount, nonstandard package). The substitute part exhibits lower DC resistance and higher saturation current, which are favorable characteristics. Physical dimensions are similar with minor variations in height (5.08mm vs. 5.86mm seated maximum).

Q: What are the key differences between these two inductors?

A: The primary differences are: (1) Core construction—UP2-2R2-R uses standard wirewound construction while B82476B1222M100 uses drum core wirewound construction; (2) DC resistance—B82476B1222M100 is 1.0 mOhm lower; (3) Saturation current—B82476B1222M100 is 0.9 A higher; (4) Operating temperature—B82476B1222M100 specifies -55°C ~ 150°C range; (5) Certifications—B82476B1222M100 includes AEC-Q200 automotive qualification and ROHS3 compliance. Inductance, tolerance, and current rating are identical.

Q: Are there any PCB layout considerations when substituting these parts?

A: Physical dimensions differ slightly. The UP2-2R2-R measures 13.74mm L x 8.76mm W x 5.86mm H (seated), while B82476B1222M100 measures 12.95mm L x 9.40mm W x 5.08mm H (seated). The substitute part is slightly shorter and narrower in length but wider in width. PCB footprints should be verified for clearance compatibility, particularly in high-density layouts. Both parts use identical Tape & Reel packaging format.

Q: Which part should be selected for new design qualification?

A: Selection depends on application requirements and supply chain strategy. For Eaton-qualified designs, specify UP2-2R2-R. For applications requiring automotive-grade reliability, extended temperature range, or lower DC resistance losses, B82476B1222M100 is appropriate. Both parts are active in production with stable supply availability.

Q: What is the significance of the ±20% inductance tolerance?

A: The ±20% tolerance indicates that actual inductance values may range from 1.76 µH to 2.64 µH. Both the main part and substitute share this tolerance specification, ensuring equivalent performance distribution across production batches. Circuit designs must account for this tolerance range in filter, matching, and impedance-critical applications.

Q: Are moisture sensitivity levels identical between these parts?

A: Yes. Both UP2-2R2-R and B82476B1222M100 carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard surface mount assembly processes without special moisture control are acceptable for both components.