UP2UC-151-R Equivalent & Substitute Parts Reference

Part Overview

The UP2UC-151-R is a 150 µH unshielded wirewound inductor manufactured by Eaton - Electronics Division, rated for 1 A continuous current with a maximum DC resistance of 400 mOhm. This surface mount component operates across the temperature range of -25°C to 85°C and is part of the UNI-PAC™ 2UC series. The part is currently active in production with RoHS compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while accommodating application-specific requirements such as extended temperature ranges, alternative core materials, or inventory availability.

Substiute Parts

UP2UC-151-R

Eaton - Electronics DivisionIn Stock: 771UP2UC-151-R Datasheet

Current PartRFQ

P0752.154NLT

Pulse ElectronicsIn Stock: 1373P0752.154NLT Datasheet

DirectRFQ

SDR1005-151KL

Bourns Inc.In Stock: 3954SDR1005-151KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UP2UC-151-R is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value of 150 µH at 100 kHz test frequency
• Unshielded configuration
• Surface mount packaging
• Current rating of 1 A minimum
• DC resistance not exceeding 400 mOhm (lower values are acceptable)
• Inductance tolerance of ±20% or better
• RoHS compliance status

Acceptable Variation Parameters:

• Operating temperature range may extend beyond -25°C to 85°C
• Core material type (wirewound or drum core wirewound)
• Saturation current (Isat) at or above 1 A
• Physical dimensions within nonstandard package classification
• Self-resonant frequency characteristics

The two identified substitute parts meet all critical matching parameters while offering variations in DC resistance, temperature operating range, and core construction that may benefit specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

UP2UC-151-R (Eaton - Electronics Division)

Primary selection when operating environment is constrained to -25°C to 85°C temperature range. Offers the lowest DC resistance specification at 400 mOhm maximum, minimizing power dissipation in current-limited applications. RoHS compliant with active production status and 714 units in current inventory.

P0752.154NLT (Pulse Electronics)

Suitable for applications requiring extended temperature operation up to 130°C. DC resistance of 570 mOhm maximum represents a 42.5% increase over the primary part. ROHS3 compliant with 1347 units in inventory. Dimensions vary slightly (0.510" L x 0.370" W) requiring PCB layout verification. Select when thermal environment exceeds 85°C and higher DC resistance is acceptable.

SDR1005-151KL (Bourns Inc.)

Applicable when superior inductance tolerance (±10% versus ±20%) is required for precision circuit tuning. Ferrite drum core construction with 6 MHz self-resonant frequency matches primary part specification. Continuous current rating of 800 mA is 200 mA below primary specification; saturation current remains at 1 A. DC resistance of 590 mOhm maximum. ROHS3 compliant with 3872 units in inventory. Height-seated dimension of 0.197" (5.00mm) is 0.008" lower than primary part. Select when tighter inductance tolerance and lower profile are required, provided 800 mA continuous current rating satisfies application demands.

All three parts maintain unshielded configuration, surface mount packaging, and MSL 1 rating. Selection should be based on specific application constraints regarding temperature range, current requirements, DC resistance budget, and inductance tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can P0752.154NLT replace UP2UC-151-R in all applications?

A: P0752.154NLT meets all critical electrical parameters (150 µH inductance, 1 A rating, unshielded, surface mount). The 570 mOhm maximum DC resistance exceeds the primary part's 400 mOhm specification by 170 mOhm. Substitution is valid when the application circuit can tolerate increased power dissipation from higher DC resistance. Extended temperature range (-40°C to 130°C) provides additional operational margin. Physical dimensions differ slightly; verify PCB layout compatibility before implementation.

Q: Why does SDR1005-151KL have a lower current rating (800 mA) than the primary part (1 A)?

A: SDR1005-151KL is rated for 800 mA continuous current with 1 A saturation current. The primary UP2UC-151-R is rated for 1 A continuous current. SDR1005-151KL is suitable only for applications where continuous current does not exceed 800 mA. Saturation current of 1 A in both parts indicates transient current capability. Verify application current requirements before selecting SDR1005-151KL.

Q: What is the significance of inductance tolerance differences?

A: UP2UC-151-R and P0752.154NLT specify ±20% inductance tolerance, while SDR1005-151KL specifies ±10% tolerance. Tighter tolerance (±10%) reduces circuit tuning variation and improves frequency response predictability in resonant or filter applications. Select SDR1005-151KL when circuit design requires inductance values within narrower specification bands.

Q: Are all three parts RoHS compliant?

A: UP2UC-151-R is RoHS Compliant. P0752.154NLT and SDR1005-151KL are ROHS3 Compliant. Both compliance levels satisfy RoHS directive requirements. ROHS3 represents the current regulatory standard. All three parts are suitable for applications with RoHS compliance mandates.

Q: How do physical dimensions affect PCB layout?

A: UP2UC-151-R and SDR1005-151KL share identical length and width (0.500" L x 0.394" W / 12.70mm x 10.00mm). P0752.154NLT dimensions are 0.510" L x 0.370" W (12.95mm x 9.40mm), representing 0.010" greater length and 0.024" reduced width. Height-seated dimensions vary: UP2UC-151-R at 0.205" (5.21mm), P0752.154NLT at 0.215" (5.46mm), and SDR1005-151KL at 0.197" (5.00mm). Verify PCB footprint and clearance specifications before selecting P0752.154NLT or SDR1005-151KL as replacements.

Q: What inventory considerations apply to these parts?

A: UP2UC-151-R has 714 units in stock. P0752.154NLT has 1347 units in stock. SDR1005-151KL has 3872 units in stock. SDR1005-151KL offers the highest inventory availability. Selection based on inventory alone should be secondary to electrical and mechanical compatibility verification.

Q: Can these parts be used interchangeably in existing designs?

A: Interchangeability requires verification of three factors: (1) continuous current requirement does not exceed the substitute part's rating, (2) DC resistance increase does not cause unacceptable power dissipation, and (3) physical dimensions fit the existing PCB footprint and clearance envelope. SDR1005-151KL requires current verification due to 800 mA rating. P0752.154NLT requires layout verification due to dimensional variation. Direct substitution without design review is not recommended.