SC63LCB-151 Equivalent & Substitute Parts

Part Overview

The SC63LCB-151 is a 150 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 600 mA continuous current with a maximum DC resistance of 778 mOhm. This component is designed for applications requiring fixed inductance in compact form factors with electromagnetic shielding. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the primary component faces supply constraints, extended lead times, or when design requirements permit operation within the electrical and mechanical tolerances of alternative qualified inductors. The SC63LCB-151 has two manufacturer-recommended substitutes from Eaton Electronics Division that maintain the core 150 µH inductance specification while operating within compatible current and temperature parameters.

Substiute Parts

SC63LCB-151

Signal TransformerIn Stock: 979SC63LCB-151 Datasheet

Current PartRFQ

DR73-151-R

Eaton - Electronics DivisionIn Stock: 2326DR73-151-R Datasheet

MFR RecommendedRFQ

DRA73-151-R

Eaton - Electronics DivisionIn Stock: 2194DRA73-151-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC63LCB-151 is determined by the following mandatory parameters:

• Inductance value: 150 µH (fixed requirement)
• Inductance tolerance: ±20% (fixed requirement)
• Shielding: Shielded (electromagnetic containment requirement)
• Mounting type: Surface Mount (assembly compatibility)
• Operating temperature range: Minimum -40°C to 125°C coverage
• RoHS3 compliance: Required for regulatory alignment
• Current rating: Minimum 551 mA (allows operation within design margins)
• DC resistance: Maximum 932 mOhm (acceptable for power dissipation budgets)

Both substitute parts meet these criteria while maintaining the same inductance specification and shielding requirement. Variations in saturation current, exact DC resistance, and physical dimensions remain within acceptable engineering tolerances for this component category.

Parameter Comparison

Engineering Selection Recommendations

Both DR73-151-R and DRA73-151-R are manufacturer-recommended substitutes for the SC63LCB-151 and maintain Active product status with full RoHS3 compliance. Selection between these alternatives depends on application-specific requirements:

DR73-151-R is suitable for applications operating within the -40°C to 125°C temperature range where the 580 mA current rating and 851 mOhm DC resistance remain acceptable. This part features a drum core wirewound construction with ferrite material.

DRA73-151-R extends the operating temperature range to 165°C and includes AEC-Q200 automotive qualification. The 551 mA current rating and 932 mOhm DC resistance represent the most conservative electrical parameters among the three options. This part is appropriate for applications requiring extended temperature operation or automotive-grade reliability.

Physical dimensions differ between the main part (6.30 x 6.20 x 3.00 mm) and both substitutes (7.60 x 7.60 x 4.65 mm). PCB layout verification is necessary to confirm dimensional compatibility before component selection.

Frequently Asked Questions (FAQ)

Q: Can DR73-151-R and DRA73-151-R be used interchangeably with SC63LCB-151?

A: Both parts meet the core substitution criteria: 150 µH inductance, ±20% tolerance, shielded construction, surface mount packaging, and RoHS3 compliance. However, physical dimensions differ. DR73-151-R and DRA73-151-R measure 7.60 x 7.60 x 4.65 mm compared to the SC63LCB-151 at 6.30 x 6.20 x 3.00 mm. PCB footprint and clearance verification is required before substitution.

Q: What are the current rating differences, and do they affect substitution?

A: The SC63LCB-151 is rated for 600 mA, while DR73-151-R is rated for 580 mA and DRA73-151-R for 551 mA. If the application operates at or near 600 mA, neither substitute provides equivalent headroom. For applications operating below 551 mA, both substitutes are acceptable. For applications between 551 mA and 600 mA, DR73-151-R is the preferred option.

Q: How do DC resistance differences impact circuit performance?

A: The SC63LCB-151 specifies 778 mOhm maximum DCR. DR73-151-R has 851 mOhm and DRA73-151-R has 932 mOhm. Higher DCR increases power dissipation and voltage drop across the inductor. For applications sensitive to these parameters, calculate the additional power loss at your operating current before substitution.

Q: Why does DRA73-151-R have a higher operating temperature range?

A: DRA73-151-R is qualified to -40°C to 165°C and includes AEC-Q200 automotive certification. This extended range and qualification level make it suitable for automotive and high-reliability applications. The SC63LCB-151 and DR73-151-R are limited to -40°C to 125°C.

Q: Are there packaging differences between these parts?

A: SC63LCB-151 is supplied in nonstandard packaging. DR73-151-R and DRA73-151-R are supplied in Tape & Reel (TR) format. Verify that your assembly process accommodates TR packaging before ordering.

Q: What compliance certifications apply to these parts?

A: All three parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. DRA73-151-R additionally carries AEC-Q200 automotive qualification. REACH status is Unaffected for all parts, and ECCN classification is EAR99.