SCB63C-390 Equivalent & Substitute Parts

Part Overview

The SCB63C-390 is a 39 µH shielded surface mount inductor rated for 1 A continuous current with a maximum DC resistance of 299 mOhm. Manufactured by Signal Transformer, this component is designed for applications requiring fixed inductance in compact nonstandard packages. The part is currently obsolete, making identification of suitable substitute components essential for ongoing production support and design continuity.

Substiute Parts

SCB63C-390

Signal TransformerIn Stock: 892SCB63C-390 Datasheet

Current PartRFQ

SCRH5D28-390

Signal TransformerIn Stock: 875SCRH5D28-390 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCB63C-390 is determined by the following critical parameters:

• Inductance Value: Must be 39 µH to maintain circuit function
• Physical Dimensions: Must match 6.20mm x 6.20mm footprint and 3.00mm maximum height for PCB compatibility
• Shielding: Must be shielded to prevent electromagnetic interference
• Mounting Type: Must be surface mount compatible
• Current Rating: Must support minimum 1 A continuous current
• DC Resistance: Lower or equal DCR values are acceptable; higher values may impact circuit performance
• Operating Temperature Range: Must support -40°C ~ 125°C
• Compliance: Must maintain ROHS3 compliance

The SCRH5D28-390 meets all substitution criteria with improved electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SCRH5D28-390 is the manufacturer-recommended substitute for the obsolete SCB63C-390. Both components are manufactured by Signal Transformer and share identical physical dimensions and footprints, enabling direct PCB replacement without layout modifications.

The substitute part offers improved electrical performance with lower DC resistance (212 mOhm vs. 299 mOhm) and higher current saturation rating (650 mA vs. 330 mA), providing enhanced thermal stability and reduced power dissipation in the same package envelope. The SCRH5D28-390 maintains full compliance with ROHS3 and REACH requirements.

The active product status of SCRH5D28-390 ensures long-term availability and supply chain continuity, addressing the obsolescence of the original SCB63C-390.

Frequently Asked Questions (FAQ)

Q: Can SCRH5D28-390 be used as a direct replacement for SCB63C-390?

A: Yes. Both parts share identical inductance values (39 µH), physical dimensions (6.20mm x 6.20mm), height (3.00mm), and operating temperature range (-40°C ~ 125°C). The footprint and mounting type are identical, allowing direct PCB substitution.

Q: What are the key differences between these parts?

A: The SCRH5D28-390 provides improved electrical characteristics: lower DC resistance (212 mOhm vs. 299 mOhm), higher current rating (1.23 A vs. 1 A), and higher saturation current (650 mA vs. 330 mA). The inductance tolerance is wider (±30% vs. ±20%), and the test frequency differs (10 kHz vs. 1 kHz).

Q: Why is the SCB63C-390 marked as obsolete?

A: The SCB63C-390 has been discontinued by Signal Transformer. The SCRH5D28-390 is the active replacement offering equivalent functionality with enhanced performance characteristics.

Q: Are there packaging differences between these parts?

A: The SCB63C-390 is supplied in standard packaging, while SCRH5D28-390 is supplied in Tape & Reel (TR) format. Both maintain identical component dimensions and electrical specifications for circuit operation.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SCB63C-390 and SCRH5D28-390 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings.