UP2UC-2R2-R Equivalent & Substitute Parts Reference

Part Overview

The UP2UC-2R2-R is a 2.2 µH unshielded wirewound inductor manufactured by Eaton - Electronics Division, designed for surface mount applications requiring 6.1 A current handling capability. This component is classified as Active product status with full RoHS compliance. Substitute parts are identified to provide design flexibility, inventory alternatives, and extended sourcing options while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Key Parameters

Parameter	Value	Unit	Significance for Substitution
Inductance	2.2	µH	Primary electrical specification; must match exactly
Current Rating	6.1	A	Critical for thermal and saturation performance
DC Resistance (DCR)	12	mOhm Max	Determines power loss and thermal characteristics
Current - Saturation (Isat)	7	A	Defines maximum usable current before inductance degradation
Tolerance	±20	%	Acceptable inductance variation range
Shielding	Unshielded	-	Electromagnetic interference characteristics
Operating Temperature	-25 to 85	°C	Thermal operating range
Mounting Type	Surface Mount	-	PCB assembly compatibility
Package / Case	Nonstandard	-	Physical footprint and height constraints
RoHS Status	RoHS Compliant	-	Environmental and regulatory compliance

Substitute Part Grouping Explanation

Substitute parts for the UP2UC-2R2-R are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

Inductance value: 2.2 µH (exact match required)
Current rating: 6.1 A (minimum threshold)
Saturation current: 7 A (minimum threshold)
Tolerance: ±20% (standard specification)
Shielding: Unshielded (electromagnetic profile match)
Mounting type: Surface Mount (assembly compatibility)
Package classification: Nonstandard (physical footprint category)

Secondary Compatibility Factors:

DC Resistance: Substitute parts must not exceed 15 mOhm maximum to maintain acceptable power loss characteristics
Operating temperature range: Substitute parts must support minimum -25°C operation; extended upper range acceptable
RoHS compliance status: All substitutes must meet RoHS or ROHS3 compliance requirements
Moisture sensitivity: MSL 1 (Unlimited) maintained across all qualified substitutes

The two identified substitute parts (P0751.222NLT and SDR1005-2R2ML) satisfy all primary matching criteria and fall within acceptable secondary compatibility parameters.

Parameter Comparison

Parameter	UP2UC-2R2-R (Eaton)	P0751.222NLT (Pulse Electronics)	SDR1005-2R2ML (Bourns Inc.)
Inductance	2.2 µH	2.2 µH	2.2 µH
Tolerance	±20%	±20%	±20%
Current Rating	6.1 A	6.1 A	6.1 A
Current - Saturation (Isat)	7 A	7 A	7 A
DC Resistance (DCR)	12 mOhm Max	15 mOhm Max	12 mOhm Max
Shielding	Unshielded	Unshielded	Unshielded
Operating Temperature	-25°C ~ 85°C	-40°C ~ 130°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Type	Wirewound	Wirewound	Drum Core, Wirewound
Material - Core	-	-	Ferrite
Size / Dimension	0.500" L x 0.394" W (12.70mm x 10.00mm)	0.510" L x 0.370" W (12.95mm x 9.40mm)	0.500" L x 0.394" W (12.70mm x 10.00mm)
Height - Seated (Max)	0.205" (5.21mm)	0.215" (5.46mm)	0.197" (5.00mm)
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

UP2UC-2R2-R (Eaton - Electronics Division) Primary specification reference. RoHS Compliant status. Established baseline for electrical and thermal performance. Inventory availability: 1033 pcs.

P0751.222NLT (Pulse Electronics) Qualified substitute with extended operating temperature range (-40°C ~ 130°C). DC Resistance specification of 15 mOhm Max represents 3 mOhm increase over primary part; acceptable within design margin for applications not requiring minimum DCR. Dimensional variation in length (0.510" vs 0.500") and width (0.370" vs 0.394") requires PCB footprint verification. ROHS3 Compliant. Inventory availability: 6500 pcs.

SDR1005-2R2ML (Bourns Inc.) Qualified substitute with ferrite drum core construction. DC Resistance specification of 12 mOhm Max matches primary part exactly. Seated height of 0.197" (5.00mm) is 0.008" lower than primary part, providing clearance advantage in space-constrained applications. Frequency-dependent performance data available (Q @ 2.47MHz: 51; Self Resonant Frequency: 65MHz). ROHS3 Compliant. Inventory availability: 2107 pcs.

All three parts maintain Active product status and meet regulatory compliance requirements for current applications.

Frequently Asked Questions (FAQ)

Q: Can P0751.222NLT be used as a direct replacement for UP2UC-2R2-R?

A: P0751.222NLT qualifies as an electrical substitute based on matching inductance (2.2 µH), current rating (6.1 A), saturation current (7 A), and tolerance (±20%). The 3 mOhm increase in maximum DC Resistance (15 mOhm vs 12 mOhm) is within acceptable design margins for most applications. Physical dimensions differ slightly; verify PCB footprint compatibility before implementation. Extended operating temperature range (-40°C ~ 130°C) provides broader thermal coverage than the primary part.

Q: What is the significance of the DCR difference between UP2UC-2R2-R (12 mOhm) and P0751.222NLT (15 mOhm)?

A: DC Resistance directly affects power dissipation and thermal performance. At 6.1 A rated current, the 3 mOhm difference results in approximately 0.11 W additional power loss in the P0751.222NLT. This difference is typically acceptable in general-purpose applications but should be evaluated in thermally constrained designs or high-efficiency applications.

Q: Is SDR1005-2R2ML mechanically compatible with UP2UC-2R2-R?

A: SDR1005-2R2ML shares identical length (0.500") and width (0.394") dimensions with UP2UC-2R2-R, ensuring PCB footprint compatibility. The seated height is 0.008" lower (0.197" vs 0.205"), which is advantageous for space-constrained applications. Verify clearance with surrounding components before final design implementation.

Q: Why does SDR1005-2R2ML have ferrite core material while UP2UC-2R2-R core material is not specified?

A: Core material affects frequency response and Q factor characteristics. SDR1005-2R2ML provides documented frequency-dependent performance (Q @ 2.47MHz: 51; Self Resonant Frequency: 65MHz). The ferrite drum core construction in SDR1005-2R2ML may exhibit different high-frequency behavior compared to the primary part. Evaluate frequency response requirements for your specific application.

Q: Are all three parts RoHS compliant?

A: UP2UC-2R2-R is RoHS Compliant. P0751.222NLT and SDR1005-2R2ML are both ROHS3 Compliant, which represents an updated compliance standard. All three parts meet current environmental and regulatory requirements for new designs.

Q: What is the difference between Tape & Reel (TR) packaging for all three parts?

A: All three parts are supplied in Tape & Reel packaging, which is standard for surface mount component automation. This packaging format is compatible with standard pick-and-place assembly equipment. No functional difference exists between parts based on packaging format.

Q: Can I use these substitutes interchangeably in production?

A: Electrical substitution is qualified based on matching inductance, current rating, saturation current, and tolerance specifications. Physical dimensions must be verified against PCB layout constraints. DC Resistance variations should be evaluated for thermal impact. Recommend design validation testing when transitioning between manufacturers to confirm performance in your specific application circuit.

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