UP4T-1R5-R Equivalent & Substitute Parts

Part Overview

The UP4T-1R5-R is a 1.5 µH unshielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 4T series. This through-hole radial component is rated for 13.4 A continuous current with a maximum DC resistance of 4.9 mOhm and features a vertical cylinder package with 4 open leads. The product is currently obsolete, making identification of equivalent substitute parts essential for design continuity and procurement planning.

Substiute Parts

UP4T-1R5-R

Eaton - Electronics DivisionIn Stock: 811UP4T-1R5-R Datasheet

Current PartRFQ

P1252.152NLT

Pulse ElectronicsIn Stock: 753P1252.152NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP4T-1R5-R is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance value: 1.5 µH (with ±20% tolerance band)
• Current rating: minimum 13.4 A continuous
• DC resistance: maximum 4.9 mOhm
• Saturation current: minimum 28.9 A
• Shielding configuration: unshielded
• Wirewound construction type

Mechanical Compatibility Criteria:

• Package type and lead configuration
• Physical dimensions and mounting footprint
• Moisture sensitivity level: MSL 1 or better

The P1252.152NLT from Pulse Electronics meets the electrical requirements with a 1.5 µH inductance, 15 A current rating (exceeding the 13.4 A requirement), 4 mOhm DCR (within specification), and 25 A saturation current. However, this substitute employs surface mount technology rather than through-hole mounting, requiring circuit board redesign considerations.

Parameter Comparison

Engineering Selection Recommendations

For Direct Through-Hole Replacement: The UP4T-1R5-R is obsolete with no direct through-hole equivalent listed. Designs requiring through-hole mounting must either source remaining inventory (742 pcs reported in stock) or undergo PCB redesign to accommodate surface mount alternatives.

For Surface Mount Migration: The P1252.152NLT from Pulse Electronics provides electrical equivalence with superior specifications: higher current rating (15 A vs. 13.4 A), lower DCR (4 mOhm vs. 4.9 mOhm), and active product status ensuring long-term availability. This component is ROHS3 compliant and specifies an operating temperature range of -40°C to 130°C. Substitution requires circuit board layout modification from radial through-hole to surface mount configuration.

Compliance Considerations: Both components carry ECCN EAR99 classification and HTSUS code 8504.50.4000. The P1252.152NLT provides documented ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for new designs.

Frequently Asked Questions (FAQ)

Q: Can the P1252.152NLT directly replace the UP4T-1R5-R on existing PCBs?

A: No. The UP4T-1R5-R uses through-hole radial mounting with 4 open leads, while the P1252.152NLT is a surface mount component with nonstandard package geometry. PCB redesign is required for substitution.

Q: What are the critical electrical parameters for substitution?

A: Inductance (1.5 µH), current rating (minimum 13.4 A), DC resistance (maximum 4.9 mOhm), saturation current (minimum 28.9 A), and unshielded wirewound construction. The P1252.152NLT meets all electrical requirements.

Q: Does the P1252.152NLT meet the saturation current requirement?

A: The P1252.152NLT has a saturation current of 25 A, which is lower than the UP4T-1R5-R specification of 28.9 A. Applications requiring saturation margin above 25 A must evaluate this difference against circuit operating conditions.

Q: What is the moisture sensitivity level for both components?

A: Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are there compliance differences between the two parts?

A: The P1252.152NLT provides documented ROHS3 compliance and REACH unaffected status. The UP4T-1R5-R compliance documentation is not specified in available data. For new designs subject to regulatory requirements, the P1252.152NLT is the preferred choice.

Q: What is the availability status of each component?

A: The UP4T-1R5-R is obsolete with 742 pcs reported in current inventory. The P1252.152NLT is active with 681 pcs in stock, providing long-term procurement reliability.