UP2UC-4R7-R Equivalent & Substitute Parts Reference

Part Overview

The UP2UC-4R7-R is a 4.7 µH unshielded wirewound inductor manufactured by Eaton - Electronics Division, designed for surface mount applications requiring 4.8 A current rating and 18mOhm maximum DC resistance. This component is classified as Active product status with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified to address inventory availability, extended operating temperature ranges, or alternative shielding configurations while maintaining core electrical specifications.

Substiute Parts

UP2UC-4R7-R

Eaton - Electronics DivisionIn Stock: 788UP2UC-4R7-R Datasheet

Current PartRFQ

P0751.472NLT

Pulse ElectronicsIn Stock: 9377P0751.472NLT Datasheet

DirectRFQ

SDR1005-4R7ML

Bourns Inc.In Stock: 4834SDR1005-4R7ML Datasheet

DirectRFQ

74456047

Würth ElektronikIn Stock: 307474456047 Datasheet

SimilarRFQ

7447797470

Würth ElektronikIn Stock: 59547447797470 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility with the UP2UC-4R7-R:

Direct Substitutes maintain identical inductance (4.7 µH), tolerance (±20%), current rating (4.8 A), saturation current (5.4 A), and surface mount configuration. These parts differ in DC resistance specification or operating temperature range but remain functionally equivalent for standard applications.

Similar Substitutes maintain identical inductance and tolerance but feature enhanced current ratings (5.0 A or 6.2 A) and saturation currents (6.0 A or 8.0 A). These parts provide additional thermal and current handling margin and may include shielding or alternative core materials.

Substitution eligibility is determined by:

• Inductance value match (4.7 µH ±20%)
• Current rating equal to or greater than 4.8 A
• Surface mount package compatibility
• Operating temperature range suitability for application
• Shielding configuration compatibility with circuit design

Parameter Comparison

Engineering Selection Recommendations

P0751.472NLT (Pulse Electronics) serves as a direct electrical substitute with identical current rating and saturation current. The 33mOhm DC resistance specification is higher than the original 18mOhm, resulting in increased power dissipation. This part is suitable for applications where thermal margin exists and extended operating temperature range (-40°C to 130°C) is required. ROHS3 compliance and unlimited MSL rating match the original specification.

SDR1005-4R7ML (Bourns Inc.) provides equivalent inductance and saturation current with ferrite drum core construction. The 4.5 A current rating is below the original 4.8 A specification; this part is suitable only for applications operating below 4.5 A continuous current. The 19mOhm DC resistance and extended temperature range (-40°C to 125°C) offer improved thermal performance. ROHS3 compliance and unlimited MSL rating are maintained.

74456047 (Würth Elektronik) offers enhanced current rating (5.0 A) and saturation current (6.0 A) with ferrite drum core construction. The 19mOhm DC resistance and unshielded configuration match the original electrical characteristics. Extended operating temperature range (-40°C to 125°C) and ROHS3 compliance support demanding applications. This part provides additional thermal headroom for high-current circuits.

7447797470 (Würth Elektronik) features the highest current rating (6.2 A) and saturation current (8.0 A) with shielded drum core construction and nickel zinc ferrite core material. The 19.5mOhm DC resistance and extended temperature range (-40°C to 150°C) support extreme operating conditions. Shielded configuration differs from the original unshielded design; this part is suitable only for applications where EMI shielding is required or beneficial. ROHS3 compliance and unlimited MSL rating are maintained.

Frequently Asked Questions (FAQ)

Q: Can P0751.472NLT replace UP2UC-4R7-R in all applications?

A: P0751.472NLT maintains identical inductance, tolerance, current rating, and saturation current specifications. The higher DC resistance (33mOhm vs. 18mOhm) increases power dissipation by approximately 83%. Substitution is valid only if thermal analysis confirms acceptable temperature rise at maximum operating current. The extended temperature range (-40°C to 130°C) provides additional operational margin.

Q: Why is SDR1005-4R7ML rated for only 4.5 A when the original part is 4.8 A?

A: SDR1005-4R7ML is a similar substitute with enhanced saturation current (5.4 A) but reduced continuous current rating (4.5 A). This part is suitable only for applications where continuous current does not exceed 4.5 A. The ferrite drum core construction and lower DC resistance (19mOhm) provide improved thermal efficiency within this current range.

Q: What is the difference between shielded and unshielded configurations?

A: The UP2UC-4R7-R and four substitute parts (P0751.472NLT, SDR1005-4R7ML, 74456047) are unshielded, allowing magnetic field radiation. The 7447797470 is shielded, containing magnetic fields to reduce EMI coupling to adjacent circuits. Shielded inductors typically exhibit higher DC resistance and lower self-resonant frequency. Substitution between shielded and unshielded designs requires circuit-level EMI analysis.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original UP2UC-4R7-R is RoHS Compliant. All substitute parts (P0751.472NLT, SDR1005-4R7ML, 74456047, 7447797470) are ROHS3 Compliant, meeting current regulatory requirements. REACH status is unaffected for all substitute parts.

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

A: All parts in this comparison maintain ±20% inductance tolerance. This tolerance band defines the acceptable inductance variation from the nominal 4.7 µH value (range: 3.76 µH to 5.64 µH). Circuit designs must account for this tolerance in filter response, resonant frequency, or impedance calculations. Tolerance is not a differentiating factor among these substitutes.

Q: Can 74456047 or 7447797470 be used in place of UP2UC-4R7-R?

A: Yes, with considerations. Both Würth parts maintain 4.7 µH inductance and ±20% tolerance. The 74456047 (unshielded, 5.0 A rating) is a direct functional substitute with enhanced current margin. The 7447797470 (shielded, 6.2 A rating) requires circuit-level verification due to shielding differences and smaller physical dimensions (10.20mm x 10.20mm vs. 12.70mm x 10.00mm). Both parts support extended temperature ranges and ROHS3 compliance.

Q: What is the impact of DC resistance differences on circuit performance?

A: DC resistance directly affects power dissipation (P = I²R) and thermal rise. The original UP2UC-4R7-R specifies 18mOhm maximum. P0751.472NLT (33mOhm) dissipates 83% more power at rated current. SDR1005-4R7ML, 74456047, and 7447797470 (all 19-19.5mOhm) dissipate approximately 6-8% more power. Thermal analysis must confirm acceptable junction temperature at maximum continuous current and ambient temperature.

Q: Are physical dimensions interchangeable among these parts?

A: No. Physical dimensions vary: UP2UC-4R7-R (12.70mm L x 10.00mm W x 5.21mm H), P0751.472NLT (12.95mm L x 9.40mm W x 5.46mm H), SDR1005-4R7ML (12.70mm L x 10.00mm W x 5.00mm H), 74456047 (12.70mm L x 10.00mm W x 5.30mm H), and 7447797470 (10.20mm L x 10.20mm W x 4.50mm H). PCB footprint and clearance requirements must be verified before substitution. The 7447797470 is significantly smaller and may not fit existing PCB layouts.