UP2T-1R5-R Equivalent & Substitute Parts

Part Overview

The UP2T-1R5-R is a 1.5 µH unshielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 2T series. This through-hole component is rated for 8.3 A continuous current with a maximum DC resistance of 9.6 mOhm and operates at 100 kHz test frequency. The product is currently obsolete, making identification of equivalent substitute parts essential for design continuity and procurement planning.

Substiute Parts

UP2T-1R5-R

Eaton - Electronics DivisionIn Stock: 1005UP2T-1R5-R Datasheet

Current PartRFQ

RL622-1R5K-RC

Bourns Inc.In Stock: 1949RL622-1R5K-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP2T-1R5-R is determined by the following critical parameters:

Inductance Value: 1.5 µH is the primary electrical specification. Substitute parts must maintain this inductance value within acceptable tolerance ranges for the application.

Current Rating: The main part supports 8.3 A continuous current. Substitute parts must meet or exceed this current handling capability to ensure thermal and electrical performance equivalence.

DC Resistance: The 9.6 mOhm maximum DCR establishes power loss characteristics. Substitute parts with higher DCR values will increase heat dissipation and may affect circuit performance.

Mounting and Package: Through-hole radial vertical cylinder configuration is required for mechanical compatibility with existing PCB layouts and assembly processes.

Shielding Configuration: Unshielded design is specified. Substitute parts must maintain unshielded construction to preserve electromagnetic characteristics in the target application.

The RL622-1R5K-RC from Bourns Inc. qualifies as a substitute based on matching inductance (1.5 µH), exceeding current rating (8.5 A vs. 8.3 A), maintaining unshielded construction, and providing compatible through-hole radial vertical cylinder packaging.

Parameter Comparison

Engineering Selection Recommendations

The RL622-1R5K-RC serves as a direct electrical substitute for the obsolete UP2T-1R5-R based on matching inductance specification and compatible current rating. The substitute part is currently in active production status with confirmed inventory availability (1884 pcs), ensuring long-term procurement viability.

The RL622-1R5K-RC provides tighter inductance tolerance (±10% vs. ±20%), which may improve circuit performance in applications sensitive to inductance variation. However, the substitute exhibits higher DC resistance (16 mOhm vs. 9.6 mOhm maximum), resulting in increased power dissipation. This parameter difference must be evaluated against thermal design margins in the target application.

Physical dimensions differ between the main part and substitute. The RL622-1R5K-RC is smaller in diameter (0.335" vs. 0.433") but taller (0.433" vs. 0.390"). PCB layout verification is required to confirm mechanical fit within existing board space constraints.

The RL622-1R5K-RC carries ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. Operating temperature range (-55°C ~ 105°C) is specified for the substitute, providing environmental performance documentation absent from the original part specification.

Frequently Asked Questions (FAQ)

Q: Can the RL622-1R5K-RC directly replace the UP2T-1R5-R without circuit modification?

A: Electrical substitution is valid based on matching 1.5 µH inductance and compatible current rating (8.5 A vs. 8.3 A). However, the higher DC resistance (16 mOhm vs. 9.6 mOhm) will increase power dissipation. Thermal analysis of the target circuit is required to confirm acceptable performance. Physical dimensions differ, requiring PCB layout verification for mechanical compatibility.

Q: What is the significance of the inductance tolerance difference (±20% vs. ±10%)?

A: The RL622-1R5K-RC provides tighter tolerance control, meaning inductance values will remain closer to the nominal 1.5 µH specification. This may improve circuit performance in applications where inductance variation affects frequency response, impedance matching, or filtering characteristics. Applications with loose tolerance requirements will not be negatively affected by this improvement.

Q: How does the higher DC resistance of the substitute affect circuit performance?

A: DC resistance directly impacts power dissipation (P = I²R). At 8.3 A, the UP2T-1R5-R dissipates approximately 0.66 W, while the RL622-1R5K-RC dissipates approximately 1.10 W. This 67% increase in power loss requires verification that thermal design margins remain adequate. Applications with strict thermal budgets or high ambient temperatures may require additional thermal management considerations.

Q: Are the physical dimension differences critical for PCB compatibility?

A: The RL622-1R5K-RC is smaller in diameter (8.50mm vs. 11.00mm) but taller (11.00mm vs. 9.90mm). Existing PCB footprints designed for the UP2T-1R5-R may require modification. Verify that the substitute component fits within available board space, particularly in height-constrained applications. Radial lead spacing and hole positioning must be confirmed against the substitute datasheet.

Q: What regulatory advantages does the RL622-1R5K-RC provide?

A: The substitute is ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations. The original UP2T-1R5-R regulatory status is not specified. For applications subject to regulatory compliance requirements, the RL622-1R5K-RC provides documented compliance status.

Q: Is the RL622-1R5K-RC available in quantities sufficient for production?

A: Current inventory shows 1884 pcs of the RL622-1R5K-RC in stock as new original parts. The substitute is in active production status, ensuring ongoing availability for future procurement cycles. The original UP2T-1R5-R is obsolete with 912 pcs remaining in inventory.