UP0.4C-150-R Equivalent & Substitute Parts

Part Overview

The UP0.4C-150-R is a 15 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 950 mA continuous current with a maximum DC resistance of 250 mOhm and operates across the temperature range of -40°C to 85°C. The part is RoHS Compliant and carries an MSL rating of 1 (Unlimited), indicating suitability for standard storage and handling conditions. As an active product with 1087 units in stock, substitute parts may be required for design flexibility, supply chain optimization, or when specific performance parameters necessitate alternative component selection.

Substiute Parts

UP0.4C-150-R

Eaton - Electronics DivisionIn Stock: 1162UP0.4C-150-R Datasheet

Current PartRFQ

P0770.153NLT

Pulse ElectronicsIn Stock: 7759P0770.153NLT Datasheet

SimilarRFQ

SDR0603-150ML

Bourns Inc.In Stock: 1919SDR0603-150ML Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UP0.4C-150-R is determined by strict alignment with the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value of 15 µH with ±20% tolerance
• Unshielded configuration
• Surface mount package type
• Current rating minimum of 900 mA (allowing for minor derating)
• DC resistance not exceeding 250 mOhm
• Operating temperature range encompassing -40°C to 85°C
• Wirewound construction type
• Physical footprint compatibility (nonstandard package dimensions)

Secondary Compatibility Factors:

• RoHS compliance status (RoHS Compliant or ROHS3 Compliant acceptable)
• MSL rating of 1 (Unlimited)
• Ferrite or equivalent core material for unshielded wirewound inductors

The substitute parts P0770.153NLT and SDR0603-150ML meet these criteria with minor parameter variations within acceptable engineering tolerances for this component category.

Parameter Comparison

Engineering Selection Recommendations

P0770.153NLT (Pulse Electronics): This substitute maintains identical physical dimensions (6.60 x 4.45 x 2.92 mm) and inductance specifications. The current rating of 900 mA represents a 5.3% reduction from the primary part, acceptable for applications with design margin. DC resistance of 230 mOhm is superior to the UP0.4C-150-R specification. The extended operating temperature range to 130°C provides additional thermal headroom. ROHS3 compliance and MSL 1 rating ensure regulatory and handling compatibility. Inventory availability of 7736 units supports supply chain continuity.

SDR0603-150ML (Bourns Inc.): This substitute delivers superior electrical performance with 180 mOhm DC resistance and 1.1 A saturation current. The current rating of 930 mA is within 2.1% of the primary part specification. Physical dimensions differ (5.80 x 5.80 x 3.90 mm), requiring PCB layout verification for footprint compatibility. Operating temperature range extends to 125°C. ROHS3 compliance and MSL 1 rating are maintained. Inventory of 1900 units is available. Selection of this part requires confirmation that the modified footprint accommodates board design constraints.

Both substitute parts maintain active product status and full regulatory compliance. Selection between alternatives depends on specific application requirements regarding physical footprint constraints and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can P0770.153NLT be used as a direct replacement for UP0.4C-150-R?

A: Yes, with design margin consideration. The P0770.153NLT maintains identical physical dimensions and inductance value. The 900 mA current rating is 5.3% lower than the 950 mA specification of UP0.4C-150-R. Applications operating below 900 mA continuous current experience no functional impact. DC resistance of 230 mOhm is superior to the 250 mOhm maximum of the primary part.

Q: What are the footprint implications of using SDR0603-150ML?

A: The SDR0603-150ML has different physical dimensions (5.80 x 5.80 x 3.90 mm) compared to the UP0.4C-150-R (6.60 x 4.45 x 2.92 mm). PCB layout must be verified to confirm the modified footprint is compatible with existing pad patterns and clearance requirements. The height difference of 0.98 mm may affect component placement in space-constrained designs.

Q: Are all three parts RoHS compliant?

A: Yes. The UP0.4C-150-R carries RoHS Compliant status. Both P0770.153NLT and SDR0603-150ML carry ROHS3 Compliant status, which represents an updated compliance framework and is fully compatible with RoHS requirements.

Q: What is the significance of the MSL 1 (Unlimited) rating across all three parts?

A: MSL 1 (Unlimited) indicates these components have no moisture sensitivity limitations. Standard storage and handling procedures apply without special desiccant or humidity control requirements. All three parts are suitable for identical warehouse and assembly environments.

Q: How do the operating temperature ranges compare?

A: The UP0.4C-150-R operates from -40°C to 85°C. The P0770.153NLT extends to 130°C, and the SDR0603-150ML to 125°C. For applications requiring operation above 85°C, either substitute part provides extended thermal capability. For applications limited to the -40°C to 85°C range, all three parts are functionally equivalent.

Q: What is the impact of DC resistance differences on circuit performance?

A: The UP0.4C-150-R specifies 250 mOhm maximum DCR. The P0770.153NLT provides 230 mOhm, and the SDR0603-150ML provides 180 mOhm. Lower DC resistance reduces resistive losses and heat generation in the inductor. Applications sensitive to power dissipation benefit from the lower DCR values of the substitute parts. For general filtering and energy storage applications, the DCR differences are typically negligible.

Q: Can saturation current differences affect circuit operation?

A: Saturation current defines the threshold at which inductance begins to degrade. The UP0.4C-150-R saturates at 940 mA, P0770.153NLT at 900 mA, and SDR0603-150ML at 1.1 A. Applications with peak currents approaching these thresholds require careful evaluation. The SDR0603-150ML provides the highest saturation margin, while the P0770.153NLT has the lowest. Circuit design must ensure operating currents remain below saturation thresholds for all selected parts.