UP2C-470-R Equivalent & Substitute Parts

Part Overview

The UP2C-470-R is a 47 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division, rated for 1.77 A continuous current with a DC resistance of 118.5 mOhm. This component is part of the UNI-PAC™ 2C series and operates across the temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement needs. Active alternatives from current manufacturers provide functional equivalence while maintaining compatibility with surface mount assembly processes.

Key Parameters

Parameter	UP2C-470-R
Inductance	47 µH
Inductance Tolerance	±20%
Current Rating (Amps)	1.77 A
DC Resistance (DCR)	118.5 mOhm
Current - Saturation (Isat)	1.83 A
Type	Drum Core, Wirewound
Material - Core	Ferrite
Shielding	Unshielded
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Size / Dimension	0.508" L x 0.370" W (12.90mm x 9.40mm)
Height - Seated (Max)	0.205" (5.20mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the UP2C-470-R is determined by strict equivalence across the following critical parameters: inductance value (47 µH), inductance tolerance (±20%), current rating capability (minimum 1.77 A), DC resistance (maximum 118.5 mOhm), saturation current (minimum 1.83 A), core material (ferrite), shielding configuration (unshielded), and mounting type (surface mount). Physical dimensions and height must accommodate the original footprint or be verified for layout compatibility. Operating temperature range must encompass the application requirements. All substitute parts must maintain surface mount compatibility and MSL rating of 1 or better.

The substitute parts are categorized as follows:

Direct Equivalents: Parts meeting or exceeding all electrical parameters with minimal dimensional variance and active product status.

Similar Alternatives: Parts with comparable electrical performance but with variations in specific parameters such as current rating, DC resistance, or operating temperature range that require application-level verification.

Parameter Comparison

Parameter	UP2C-470-R (Eaton)	B82476A1473M000 (EPCOS)	SDR1005-470KL (Bourns)	B82476B1473M100 (EPCOS)	P0751.473NL (Pulse)	P0751.473NLT (Pulse)
Manufacturer	Eaton - Electronics Division	EPCOS - TDK Electronics	Bourns Inc.	EPCOS - TDK Electronics	Pulse Electronics	Pulse Electronics
Inductance	47 µH	47 µH	47 µH	47 µH	47 µH	47 µH
Inductance Tolerance	±20%	±20%	±10%	±20%	±20%	±20%
Current Rating (Amps)	1.77 A	1.8 A	1.4 A	1.95 A	1.6 A	1.6 A
DC Resistance (DCR)	118.5 mOhm	120 mOhm Max	190 mOhm Max	120 mOhm Max	168 mOhm Max	168 mOhm Max
Current - Saturation (Isat)	1.83 A	1.6 A	1.6 A	1.6 A	1.6 A	1.6 A
Type	Drum Core, Wirewound	Drum Core, Wirewound	Drum Core, Wirewound	Drum Core, Wirewound	Wirewound	Wirewound
Material - Core	Ferrite	Ferrite	Ferrite	Ferrite	Not specified	Not specified
Shielding	Unshielded	Unshielded	Unshielded	Unshielded	Unshielded	Unshielded
Operating Temperature	-40°C ~ 85°C	-55°C ~ 150°C	-40°C ~ 125°C	-55°C ~ 150°C	-40°C ~ 130°C	-40°C ~ 130°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Size / Dimension	0.508" L x 0.370" W (12.90mm x 9.40mm)	0.510" L x 0.370" W (12.95mm x 9.40mm)	0.500" L x 0.394" W (12.70mm x 10.00mm)	0.510" L x 0.370" W (12.95mm x 9.40mm)	0.510" L x 0.370" W (12.95mm x 9.40mm)	0.510" L x 0.370" W (12.95mm x 9.40mm)
Height - Seated (Max)	0.205" (5.20mm)	0.200" (5.08mm)	0.197" (5.00mm)	0.200" (5.08mm)	0.215" (5.46mm)	0.215" (5.46mm)
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

B82476A1473M000 (EPCOS - TDK Electronics): This part provides direct electrical equivalence with current rating of 1.8 A and DC resistance of 120 mOhm maximum, both within acceptable tolerance of the original specification. The extended operating temperature range (-55°C to 150°C) exceeds the original requirement. ROHS3 compliance and active product status support long-term availability. Dimensions are virtually identical to the original part. This component is suitable for direct substitution in applications where the original operating temperature range is not a limiting constraint.

B82476B1473M100 (EPCOS - TDK Electronics): This part offers superior current rating capability at 1.95 A with equivalent DC resistance of 120 mOhm maximum and identical inductance tolerance. AEC-Q200 automotive qualification provides additional reliability assurance. Extended operating temperature range and ROHS3 compliance are present. Dimensions match the original specification. This component is appropriate for applications requiring enhanced current margin or automotive-grade reliability.

SDR1005-470KL (Bourns Inc.): This part exhibits reduced current rating of 1.4 A, which falls below the original 1.77 A specification. DC resistance is elevated at 190 mOhm maximum compared to 118.5 mOhm original. Inductance tolerance is tighter at ±10%. Operating temperature range of -40°C to 125°C is compatible. ROHS3 compliance and active status are confirmed. This component is suitable only for applications where the reduced current rating and increased DC resistance are acceptable.

P0751.473NL and P0751.473NLT (Pulse Electronics): Both parts provide current rating of 1.6 A with DC resistance of 168 mOhm maximum. Operating temperature range of -40°C to 130°C is compatible. ROHS3 compliance and active product status are confirmed. The primary difference between these parts is packaging: P0751.473NL is supplied in standard packaging while P0751.473NLT is supplied in Tape & Reel format. These components are suitable for applications where the reduced current rating and elevated DC resistance are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the B82476A1473M000 be used as a direct replacement for the UP2C-470-R?

A: Yes. The B82476A1473M000 meets all critical electrical parameters: 47 µH inductance, 1.8 A current rating (exceeds 1.77 A requirement), 120 mOhm maximum DC resistance (within 118.5 mOhm specification), and ferrite drum core construction. Physical dimensions are virtually identical. ROHS3 compliance and active product status support procurement continuity.

Q: What is the significance of the current rating difference between the UP2C-470-R (1.77 A) and SDR1005-470KL (1.4 A)?

A: The SDR1005-470KL has a lower continuous current rating, which reduces the maximum allowable operating current in the application. If the circuit requires sustained current above 1.4 A, this part is not suitable. The saturation current specification (1.6 A) also indicates reduced headroom before inductance degradation occurs.

Q: How does DC resistance affect circuit performance?

A: DC resistance directly impacts power dissipation and voltage drop across the inductor. The UP2C-470-R specifies 118.5 mOhm. Substitute parts with higher DC resistance (such as SDR1005-470KL at 190 mOhm or Pulse parts at 168 mOhm) will generate increased heat and voltage drop at equivalent current levels. B82476A1473M000 and B82476B1473M100 maintain equivalent DC resistance at 120 mOhm maximum.

Q: What is the difference between P0751.473NL and P0751.473NLT?

A: Both parts are electrically identical 47 µH inductors with 1.6 A current rating and 168 mOhm maximum DC resistance. The primary distinction is packaging: P0751.473NL is supplied in standard packaging format, while P0751.473NLT is supplied in Tape & Reel (TR) format for automated assembly processes. Selection depends on manufacturing process requirements.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed (B82476A1473M000, SDR1005-470KL, B82476B1473M100, P0751.473NL, and P0751.473NLT) are ROHS3 compliant. The original UP2C-470-R RoHS status is not specified in the provided data.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level. Components with this rating have unlimited shelf life under normal storage conditions and do not require special moisture control measures during handling or storage. All parts in this comparison maintain MSL 1 rating.

Q: Can the B82476B1473M100 be used in place of the UP2C-470-R?

A: Yes. The B82476B1473M100 exceeds the original specification with 1.95 A current rating and maintains equivalent DC resistance at 120 mOhm maximum. AEC-Q200 automotive qualification provides additional reliability assurance. Extended operating temperature range (-55°C to 150°C) and ROHS3 compliance support long-term availability. This part is suitable for direct substitution with enhanced performance margin.

Q: What is the impact of inductance tolerance on circuit design?

A: The UP2C-470-R and most substitute parts specify ±20% inductance tolerance, meaning the actual inductance can range from 37.6 µH to 56.4 µH. The SDR1005-470KL offers tighter tolerance at ±10% (42.3 µH to 51.7 µH), which may be beneficial in precision filter or resonant circuit applications. Circuit design must account for the specified tolerance range.

Q: Are there any dimensional constraints that would prevent substitution?

A: All substitute parts maintain compatible surface mount footprints within the original dimensions. The UP2C-470-R measures 0.508" L x 0.370" W with 0.205" maximum height. Substitute parts range from 0.500" to 0.510" length, 0.370" to 0.394" width, and 0.197" to 0.215" height. These variations are within typical PCB layout tolerances for surface mount components. Verify specific layout constraints for your application.

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