UP3B-6R8-R Equivalent & Substitute Parts

Part Overview

The UP3B-6R8-R is a 6.8 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ series. This surface mount component is rated for 5.8 A continuous current with a maximum DC resistance of 18.3 mOhm and operates across the temperature range of -40°C to 85°C. The part is RoHS compliant and currently in active production status with 873 pieces available in inventory.

Substitute parts are identified when equivalent inductance values, current ratings, and core material specifications align within acceptable tolerance ranges, enabling direct functional replacement in circuit applications while maintaining electrical performance requirements.

Substiute Parts

UP3B-6R8-R

Eaton - Electronics DivisionIn Stock: 978UP3B-6R8-R Datasheet

Current PartRFQ

B82477G4682M000

EPCOS - TDK ElectronicsIn Stock: 3937B82477G4682M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UP3B-6R8-R is determined by the following criteria:

Primary Matching Criteria:

• Inductance value of 6.8 µH (±20% tolerance)
• Ferrite drum core, wirewound construction
• Surface mount package configuration
• Current rating of 5.8 A or higher
• DC resistance within 18.3 mOhm maximum specification
• Saturation current (Isat) of 6.2 A or higher

Secondary Compatibility Factors:

• Operating temperature range must encompass the application's thermal requirements
• RoHS compliance status (RoHS Compliant or ROHS3 Compliant acceptable)
• Moisture sensitivity level of 1 (Unlimited) preferred for handling consistency

The B82477G4682M000 qualifies as a substitute based on matching inductance, core material, mounting type, and exceeding current and saturation specifications. Physical dimensions differ, requiring verification of board layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

UP3B-6R8-R Selection Criteria:

• Original design specification calls for unshielded configuration
• Eaton component availability and supply chain established
• Operating temperature range of -40°C to 85°C sufficient for application
• Smaller physical footprint (19.30mm x 13.21mm) preferred for space-constrained layouts
• RoHS Compliant status meets environmental requirements

B82477G4682M000 Selection Criteria:

• Extended operating temperature range (-55°C to 125°C) required for extreme environment applications
• Higher current rating (6.5 A) and saturation current (7.3 A) provide additional thermal margin
• Shielded construction reduces electromagnetic interference in sensitive circuits
• ROHS3 Compliant status meets current regulatory standards
• Smaller physical footprint (12.80mm x 12.80mm) enables denser board layouts
• Higher inventory availability (3910 pieces) supports rapid procurement

Substitution Feasibility: Both parts are active production components with identical inductance and tolerance specifications. The B82477G4682M000 exceeds electrical performance requirements and provides enhanced environmental protection through shielding. Physical dimensions differ; board layout and clearance verification is required before substitution. Both parts meet RoHS compliance and MSL requirements.

Frequently Asked Questions (FAQ)

Q: Can the B82477G4682M000 directly replace the UP3B-6R8-R without circuit redesign?

A: Electrical substitution is feasible. The B82477G4682M000 matches the 6.8 µH inductance specification and exceeds current and saturation ratings. Physical board layout verification is required due to dimensional differences: the substitute is 6.5mm shorter in length but 1.2mm taller in height. Footprint compatibility must be confirmed before assembly.

Q: What is the significance of shielding differences between these parts?

A: The UP3B-6R8-R is unshielded; the B82477G4682M000 is shielded. Shielding reduces electromagnetic field radiation and susceptibility to external interference. In applications where EMI performance is critical, the shielded substitute provides additional protection. In applications where shielding is not required, both parts function identically from an inductance perspective.

Q: Are there temperature range implications for substitution?

A: The UP3B-6R8-R operates from -40°C to 85°C. The B82477G4682M000 operates from -55°C to 125°C. If the application requires operation below -40°C or above 85°C, the substitute is necessary. For applications within the original part's temperature range, both parts are equivalent.

Q: How do DC resistance values affect substitution?

A: The UP3B-6R8-R specifies 18.3 mOhm maximum; the B82477G4682M000 specifies 18.5 mOhm maximum. The 0.2 mOhm difference is negligible for most applications and results in less than 1% additional power dissipation. Both parts meet equivalent performance criteria for DC resistance.

Q: What packaging considerations apply to these parts?

A: Both parts are supplied in Tape & Reel (TR) packaging for automated assembly. Both are surface mount components with nonstandard package dimensions. The substitute's smaller footprint (12.80mm x 12.80mm versus 19.30mm x 13.21mm) may enable higher component density but requires PCB layout adjustment.

Q: Are both parts available for immediate procurement?

A: The UP3B-6R8-R has 873 pieces in stock. The B82477G4682M000 has 3910 pieces in stock. The substitute offers significantly higher inventory availability for rapid fulfillment.

Q: Do RoHS compliance differences affect substitution?

A: The UP3B-6R8-R is RoHS Compliant; the B82477G4682M000 is ROHS3 Compliant. ROHS3 represents the current regulatory standard. Both parts meet environmental compliance requirements. The substitute's ROHS3 status ensures alignment with current and future regulatory expectations.