UP0.4SC-1R5-R Equivalent & Substitute Parts

Part Overview

The UP0.4SC-1R5-R is a 1.5 µH shielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 0.4SC series. This surface mount component is rated for 2.8 A continuous current with a maximum DC resistance of 45 mOhm and operates across the temperature range of -40°C to 125°C. The part maintains Active product status with RoHS compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within allowable parameter tolerances.

Substiute Parts

UP0.4SC-1R5-R

Eaton - Electronics DivisionIn Stock: 781UP0.4SC-1R5-R Datasheet

Current PartRFQ

PM1608S-1R5M-RC

Bourns Inc.In Stock: 2191PM1608S-1R5M-RC Datasheet

SimilarRFQ

SRR6603-1R5ML

Bourns Inc.In Stock: 1097SRR6603-1R5ML Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UP0.4SC-1R5-R are qualified based on strict electrical and mechanical parameter matching within the following criteria:

Electrical Equivalence Requirements:

• Inductance value: 1.5 µH (exact match)
• Inductance tolerance: ±20% (identical)
• Current rating: 2.8 A minimum (equal or greater)
• DC resistance: 45 mOhm maximum (equal or lower)
• Quality factor: 30 @ 200 kHz (equal or greater)
• Self-resonant frequency: 125 MHz minimum (equal or greater)
• Shielding: Shielded configuration (required)

Mechanical Compatibility Requirements:

• Mounting type: Surface Mount (required)
• Package classification: Nonstandard (matching form factor)
• Dimensions: 0.260" L x 0.175" W maximum (with tolerance for minor variations)
• Height seated: 2.92 mm maximum (PCB clearance constraint)
• Packaging: Tape & Reel (TR) format

Environmental & Compliance Requirements:

• Operating temperature range: Must cover -40°C to 125°C or broader
• RoHS compliance: Required
• Moisture sensitivity: MSL 1 or equivalent

The two identified substitute parts (PM1608S-1R5M-RC and SRR6603-1R5ML) meet all electrical specifications and mechanical constraints while maintaining regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitution Criteria:

All three inductors (UP0.4SC-1R5-R, PM1608S-1R5M-RC, and SRR6603-1R5ML) are electrically and mechanically equivalent for applications requiring 1.5 µH shielded surface mount inductors with 2.8 A current rating and 45 mOhm maximum DC resistance.

Compliance Status:

• UP0.4SC-1R5-R: RoHS Compliant, Active product status
• PM1608S-1R5M-RC: ROHS3 Compliant, Active product status
• SRR6603-1R5ML: ROHS3 Compliant, Active product status

All parts maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Temperature Range Consideration:

The UP0.4SC-1R5-R operates from -40°C to 125°C. Both Bourns substitutes (PM1608S-1R5M-RC and SRR6603-1R5ML) extend the lower operating limit to -55°C, providing broader environmental coverage while maintaining the same upper temperature limit.

Physical Dimensions:

The substitute parts exhibit minor dimensional variations within acceptable tolerances:

• Length: 6.60 mm (identical)
• Width: 4.40 mm vs. 4.45 mm (0.05 mm difference, negligible for PCB layout)
• Height: 3.00 mm vs. 2.92 mm (0.08 mm difference, within typical PCB clearance margins)

Inventory Availability:

• UP0.4SC-1R5-R: 689 pieces in stock
• PM1608S-1R5M-RC: 2108 pieces in stock
• SRR6603-1R5ML: 1018 pieces in stock

Selection Logic:

Choose UP0.4SC-1R5-R when Eaton component preference or existing supply chain relationships are established. Select PM1608S-1R5M-RC or SRR6603-1R5ML when Bourns sourcing is preferred, broader temperature range is beneficial, or when inventory availability favors these alternatives. All three parts satisfy identical electrical and mechanical requirements for direct substitution in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can PM1608S-1R5M-RC or SRR6603-1R5ML be used as direct replacements for UP0.4SC-1R5-R?

A: Yes. Both Bourns parts meet all electrical specifications (1.5 µH inductance, 2.8 A current rating, 45 mOhm DCR, 30 Q @ 200 kHz, 125 MHz self-resonant frequency) and mechanical requirements (surface mount, nonstandard package, identical footprint dimensions within tolerance). All three parts are shielded, RoHS compliant, and maintain MSL 1 rating.

Q: What are the key electrical parameters that must match for substitution?

A: The critical parameters are inductance value (1.5 µH exact), current rating (2.8 A minimum), DC resistance (45 mOhm maximum), quality factor (30 @ 200 kHz minimum), self-resonant frequency (125 MHz minimum), and shielding configuration (shielded required). All three parts match these specifications exactly.

Q: Are there any physical compatibility concerns with the substitute parts?

A: The substitute parts exhibit minor dimensional variations: width is 4.40 mm versus 4.45 mm (0.05 mm difference) and height is 3.00 mm versus 2.92 mm (0.08 mm difference). These variations are within standard PCB layout tolerances and do not affect mechanical compatibility or assembly.

Q: Do the substitute parts have different temperature operating ranges?

A: The UP0.4SC-1R5-R operates from -40°C to 125°C. Both Bourns substitutes (PM1608S-1R5M-RC and SRR6603-1R5ML) operate from -55°C to 125°C, providing extended low-temperature capability. If the application requires operation only within -40°C to 125°C, both ranges are functionally equivalent.

Q: What is the difference between PM1608S-1R5M-RC and SRR6603-1R5ML?

A: Both parts are electrically and mechanically equivalent with identical inductance, current rating, DCR, Q factor, and self-resonant frequency. The SRR6603-1R5ML specifies a saturation current (Isat) of 930 mA, while the PM1608S-1R5M-RC does not provide this parameter. Both are Bourns products with ROHS3 compliance and identical physical dimensions.

Q: Are all three parts available in Tape & Reel packaging?

A: Yes. UP0.4SC-1R5-R, PM1608S-1R5M-RC, and SRR6603-1R5ML are all supplied in Tape & Reel (TR) format, suitable for automated PCB assembly processes.

Q: What compliance certifications apply to these parts?

A: UP0.4SC-1R5-R is RoHS Compliant. PM1608S-1R5M-RC and SRR6603-1R5ML are ROHS3 Compliant. All three parts are MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Both Bourns parts carry REACH Unaffected status.

Q: Can these inductors be used interchangeably in high-frequency applications?

A: Yes, within the specified frequency range. All three parts maintain a self-resonant frequency of 125 MHz and identical Q factor (30 @ 200 kHz), ensuring consistent performance in circuits operating below 125 MHz. The inductance test frequency is 100 kHz for all parts.