UP5-471-R Equivalent & Substitute Parts Reference

Part Overview

The UP5-471-R is a 470 µH unshielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 5 series. This surface mount component is rated for 820 mA continuous current with a maximum DC resistance of 850 mOhm and operates across the temperature range of -25°C to 105°C. The part is currently active in production with RoHS compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent substitute parts are identified when electrical specifications, mechanical dimensions, and performance characteristics align within acceptable tolerances for direct board-level replacement.

Substiute Parts

UP5-471-R

Eaton - Electronics DivisionIn Stock: 1154UP5-471-R Datasheet

Current PartRFQ

74458247

Würth ElektronikIn Stock: 326074458247 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UP5-471-R are identified based on strict electrical and mechanical parameter alignment. The substitution logic requires:

Electrical Parameters (Non-negotiable):

• Inductance value of 470 µH at 100 kHz test frequency
• Inductance tolerance of ±20%
• Current rating of 820 mA minimum
• DC resistance of 850 mOhm maximum
• Saturation current (Isat) of 1.4 A or greater

Mechanical Parameters (Non-negotiable):

• Surface mount technology
• Nonstandard package classification
• Physical dimensions compatible with 18.40 × 15.00 mm footprint and 7.50 mm maximum seated height
• Tape & Reel packaging format

Compliance Parameters (Required):

• RoHS compliance status
• MSL rating of 1 (Unlimited)

The Würth Elektronik part number 74458247 qualifies as an equivalent substitute based on matching all critical electrical specifications, compatible physical dimensions within manufacturing tolerance, and equivalent regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: UP5-471-R (Eaton - Electronics Division)

The UP5-471-R remains the specified component when original design validation, existing supply chain qualification, and documented performance history are required. This part is active in production with confirmed inventory of 1079 pieces and full RoHS compliance certification.

Equivalent Substitute: 74458247 (Würth Elektronik - WE-PD4 Series)

The 74458247 qualifies as a direct electrical and mechanical equivalent for the UP5-471-R. Selection of this substitute is appropriate when:

• Supply continuity of the primary part is interrupted
• Cost optimization is required (higher inventory availability: 3200 pieces)
• Extended operating temperature range (-40 to 125°C versus -25 to 105°C) is beneficial for the application
• Higher saturation current rating (1.6 A versus 1.4 A) provides additional design margin
• Slightly lower profile (7.11 mm versus 7.50 mm) accommodates space-constrained layouts

Both parts carry equivalent regulatory compliance (RoHS and REACH status where applicable) and identical MSL ratings. Physical dimensions are compatible within standard manufacturing tolerances for PCB footprint and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 74458247 be used as a direct replacement for the UP5-471-R on existing PCBs?

A: Yes. The 74458247 is mechanically and electrically compatible. Physical dimensions (18.54 × 15.24 × 7.11 mm) are within acceptable tolerance of the UP5-471-R footprint (18.40 × 15.00 × 7.50 mm). Both parts use identical surface mount technology and nonstandard package classification. Electrical specifications match exactly for inductance, current rating, and DC resistance.

Q: What is the difference between the wirewound construction types?

A: The UP5-471-R uses standard wirewound construction. The 74458247 uses drum core wirewound construction with ferrite core material. Both achieve identical electrical performance at the specified 100 kHz test frequency. The drum core design in the 74458247 contributes to its slightly lower profile and higher saturation current rating.

Q: Are there temperature range considerations for substitution?

A: The UP5-471-R operates from -25°C to 105°C. The 74458247 operates from -40°C to 125°C. The 74458247 provides extended temperature coverage and is suitable for applications requiring operation below -25°C or above 105°C. For applications within the -25 to 105°C window, both parts perform identically.

Q: Do both parts meet the same regulatory requirements?

A: Yes. The UP5-471-R carries RoHS Compliant certification. The 74458247 carries ROHS3 Compliant certification. Both parts have MSL rating of 1 (Unlimited moisture sensitivity). Both are classified under ECCN EAR99 for export control purposes.

Q: What is the saturation current difference, and does it matter?

A: The UP5-471-R has Isat of 1.4 A; the 74458247 has Isat of 1.6 A. Saturation current defines the maximum current before inductance collapses. Both parts are rated for 820 mA continuous current, well below saturation limits. The higher saturation rating of the 74458247 provides additional design margin for transient current conditions.

Q: Are the self-resonant frequencies different?

A: Yes. The UP5-471-R has SRF of 2.7 MHz; the 74458247 has SRF of 2.3 MHz. Both values are in the same frequency range and suitable for typical switching power supply and filtering applications. The difference reflects the drum core construction of the 74458247. For applications operating significantly below 2 MHz, this difference is not significant.

Q: Can I mix these parts in the same production batch?

A: Both parts are qualified equivalents with identical electrical performance at the specified test frequency and operating conditions. PCB assembly processes treat both as compatible surface mount components. However, design documentation and bill of materials should clearly specify which part number is used to maintain traceability and supply chain management.