UP2B-4R7-R Equivalent & Substitute Parts

Part Overview

The UP2B-4R7-R is a 4.7 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 5.5 A continuous current with a maximum DC resistance of 16.5 mOhm and operates across the temperature range of -40°C to 85°C. The part is RoHS Compliant and carries Active product status with 2182 pieces currently in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances. Alternative sources ensure supply chain continuity and may offer extended temperature ranges or enhanced reliability certifications.

Substiute Parts

UP2B-4R7-R

Eaton - Electronics DivisionIn Stock: 2253UP2B-4R7-R Datasheet

Current PartRFQ

B82476B1472M100

EPCOS - TDK ElectronicsIn Stock: 6443B82476B1472M100 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UP2B-4R7-R is determined by strict adherence to the following electrical and mechanical criteria:

Mandatory Matching Parameters:

• Inductance value: 4.7 µH (exact match required)
• Inductance tolerance: ±20% (standard tolerance band)
• Core type: Ferrite drum core, wirewound construction
• Shielding configuration: Unshielded
• Mounting type: Surface Mount
• DC Resistance: 16.5 mOhm maximum (substitute DCR must not exceed this value)

Acceptable Variation Parameters:

• Current Rating: Substitute must equal or exceed 5.5 A
• Operating Temperature Range: Substitute may extend beyond -40°C to 85°C
• Saturation Current (Isat): Substitute may differ if core material and geometry are equivalent
• Physical dimensions: Minor variations acceptable if mounting footprint remains compatible with nonstandard package designation
• Regulatory certifications: Substitute must maintain RoHS compliance; additional certifications (AEC-Q200, REACH) are permissible enhancements

The B82476B1472M100 qualifies as a direct substitute based on matching inductance, tolerance, core type, shielding, mounting method, and DCR specification, while offering improved current saturation performance and extended temperature range.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (UP2B-4R7-R): The UP2B-4R7-R remains the specified component when the design requires the full 5.5 A current rating and the original thermal envelope of -40°C to 85°C. This part is Active status with substantial inventory availability (2182 pieces). Selection is appropriate for applications where the original design parameters are non-negotiable and supply from Eaton - Electronics Division is preferred.

Substitute Part (B82476B1472M100): The B82476B1472M100 is qualified as a direct substitute when:

• The application current requirement does not exceed 5.3 A
• Extended temperature operation below -40°C or above 85°C is beneficial
• AEC-Q200 automotive-grade reliability certification adds value
• Improved saturation current (5.4 A vs. 4.2 A) provides design margin
• Slightly reduced physical dimensions (0.92mm lower height) accommodate space-constrained layouts
• ROHS3 compliance satisfies enhanced regulatory requirements

Both parts maintain identical inductance, tolerance, DCR, core type, and shielding configuration. The substitute offers superior inventory availability (6405 pieces) and extended operational temperature range. Physical dimension differences are minor and do not preclude direct substitution in nonstandard package applications.

Frequently Asked Questions (FAQ)

Q: Can the B82476B1472M100 replace the UP2B-4R7-R in all applications?

A: The B82476B1472M100 qualifies as a substitute when the application current requirement is 5.3 A or lower. If the design requires the full 5.5 A rating, the original UP2B-4R7-R must be used. Both parts share identical inductance (4.7 µH), tolerance (±20%), DCR (16.5 mOhm max), and core construction, ensuring electrical equivalence within the current constraint.

Q: What is the impact of the 0.2 A current rating difference?

A: The UP2B-4R7-R is rated for 5.5 A continuous current, while the B82476B1472M100 is rated for 5.3 A. For applications operating at or below 5.3 A, this difference is not significant. For designs requiring sustained current above 5.3 A, the original part must be retained to ensure thermal stability and component reliability.

Q: Are the physical dimension differences critical?

A: The B82476B1472M100 is 0.040" (1.02mm) shorter in length, 0.040" (1.01mm) narrower in width, and 0.036" (0.92mm) lower in height. These reductions are minor and typically do not affect PCB layout compatibility for nonstandard package inductors. However, verify that the substitute footprint aligns with the PCB design and that no clearance violations occur with adjacent components.

Q: Does the extended temperature range of the B82476B1472M100 affect circuit performance?

A: The B82476B1472M100 operates from -55°C to 150°C, compared to -40°C to 85°C for the UP2B-4R7-R. This extended range does not alter the inductor's electrical characteristics within the original design envelope. If the application requires operation outside the original temperature range, the substitute provides additional thermal margin without performance degradation.

Q: What is the significance of AEC-Q200 certification on the substitute?

A: AEC-Q200 is an automotive-grade reliability standard that certifies component performance under stringent environmental and stress conditions. The B82476B1472M100 carries this certification, while the UP2B-4R7-R does not. For automotive or mission-critical applications, the substitute's AEC-Q200 status provides enhanced reliability assurance.

Q: Are both parts RoHS compliant?

A: Yes. The UP2B-4R7-R is RoHS Compliant, and the B82476B1472M100 is ROHS3 Compliant. ROHS3 represents an enhanced version of the RoHS standard. Both parts meet regulatory requirements for lead-free and hazardous substance restrictions.

Q: How do the saturation current values differ, and does this matter?

A: The UP2B-4R7-R has a saturation current (Isat) of 4.2 A, while the B82476B1472M100 has an Isat of 5.4 A. Saturation current indicates the point at which the inductor's core begins to saturate and inductance degrades. The substitute's higher saturation current provides greater design margin and better performance stability under transient current spikes.

Q: Which part should be selected for new designs?

A: For new designs, either part is acceptable based on application requirements. If current demand is 5.3 A or lower, the B82476B1472M100 offers advantages including extended temperature range, higher saturation current, AEC-Q200 certification, and superior inventory availability. If the design requires the full 5.5 A rating or mandates Eaton sourcing, the UP2B-4R7-R is the appropriate choice.