SC63CB-150 Equivalent & Substitute Parts

Part Overview

The SC63CB-150 is a 15 µH shielded inductor manufactured by Signal Transformer, rated for 2.18 A continuous current with a maximum DC resistance of 80mOhm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 986 units in stock. Equivalent parts are necessary when primary inventory is depleted, when alternative sourcing is required for supply chain resilience, or when design specifications allow for substitution within defined electrical and mechanical tolerances.

Substiute Parts

SC63CB-150

Signal TransformerIn Stock: 1091SC63CB-150 Datasheet

Current PartRFQ

DR73-150-R

Eaton - Electronics DivisionIn Stock: 9774DR73-150-R Datasheet

MFR RecommendedRFQ

DR74-150-R

Eaton - Electronics DivisionIn Stock: 1399DR74-150-R Datasheet

MFR RecommendedRFQ

DRA74-150-R

Eaton - Electronics DivisionIn Stock: 2444DRA74-150-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC63CB-150 is permissible with the following equivalent parts based on matching core electrical specifications:

Matching Criteria:

• Inductance value: 15 µH ±20% tolerance
• Shielding: Shielded construction required
• Mounting: Surface mount configuration
• Operating temperature range: Minimum -40°C to 125°C coverage
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 or better

The substitute parts DR73-150-R, DR74-150-R, and DRA74-150-R all meet these core requirements. Variations in current rating, DC resistance, and saturation current are within acceptable substitution parameters for this inductor category, provided the application circuit design accommodates these differences.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. The DRA74-150-R offers extended operating temperature capability to 165°C, providing additional thermal margin for applications requiring higher temperature performance. The DR74-150-R provides the lowest DC resistance at 63.7mOhm, reducing resistive losses compared to the original SC63CB-150 specification. The DR73-150-R represents the most conservative substitution with saturation current of 2.05 A, exceeding the original part's 1.1 A specification. Selection should be based on specific application requirements regarding current handling, thermal dissipation, and operating temperature constraints.

Frequently Asked Questions (FAQ)

Q: Can DR73-150-R, DR74-150-R, and DRA74-150-R be used interchangeably with SC63CB-150?

A: These parts share the same 15 µH inductance value, ±20% tolerance, shielded construction, surface mount configuration, and ROHS3 compliance. Interchangeability depends on whether the application circuit can accommodate variations in current rating, DC resistance, and saturation current specifications. Circuit simulation or testing is necessary to confirm suitability for specific applications.

Q: What are the physical dimension differences between these parts?

A: The SC63CB-150 measures 0.248" L × 0.244" W × 0.138" H (6.30mm × 6.20mm × 4.60mm). The DR73-150-R, DR74-150-R, and DRA74-150-R all measure 0.299" L × 0.299" W (7.60mm × 7.60mm), with heights of 0.140" (4.65mm) for DR73-150-R and 0.171" (4.35mm) for both DR74-150-R and DRA74-150-R. PCB layout verification is required before substitution.

Q: Are there temperature rating differences that affect selection?

A: The SC63CB-150, DR73-150-R, and DR74-150-R operate from -40°C to 125°C. The DRA74-150-R extends the upper limit to 165°C. For applications operating above 125°C, only DRA74-150-R is suitable.

Q: How do DC resistance differences impact circuit performance?

A: The SC63CB-150 specifies 80mOhm maximum DCR. The DR74-150-R at 63.7mOhm provides lower resistive losses, while DR73-150-R at 84.4mOhm and DRA74-150-R at 67mOhm represent intermediate values. Higher DCR increases power dissipation; lower DCR reduces it. Circuit thermal analysis should account for these differences.

Q: What is the significance of saturation current differences?

A: Saturation current indicates the DC bias level at which inductance begins to degrade. The SC63CB-150 saturates at 1.1 A, while substitutes range from 2.05 A to 2.48 A. Applications with DC bias currents near or exceeding 1.1 A may benefit from substitutes with higher saturation ratings to maintain inductance stability.