SC62CB-3R3 Equivalent & Substitute Parts

Part Overview

The SC62CB-3R3 is a 3.3 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 3.23 A continuous current with a maximum DC resistance of 30mOhm. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

SC62CB-3R3

Signal TransformerIn Stock: 1082SC62CB-3R3 Datasheet

Current PartRFQ

SRN6045-3R3Y

Bourns Inc.In Stock: 164315SRN6045-3R3Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC62CB-3R3 is determined by the following critical parameters:

• Inductance value of 3.3 µH within ±30% tolerance
• Current rating minimum of 3.2 A to maintain design margin
• DC resistance not exceeding 30.2mOhm to preserve circuit performance
• Operating temperature range of -40°C to 125°C
• Surface mount packaging for PCB compatibility
• RoHS3 compliance for regulatory alignment

The SRN6045-3R3Y meets these substitution criteria with equivalent inductance, comparable current handling, and matching temperature specifications. Shielding classification differs (Semi-Shielded vs. Shielded), which may affect electromagnetic interference characteristics in specific applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SC62CB-3R3 and SRN6045-3R3Y maintain Active product status with full RoHS3 and REACH compliance. Selection between these parts should be based on:

• Shielding requirements: The SC62CB-3R3 provides full shielding, while the SRN6045-3R3Y offers semi-shielded construction. Applications sensitive to electromagnetic interference may require the fully shielded variant.
• Current saturation margin: The SRN6045-3R3Y provides higher saturation current (5 A vs. 1.89 A), offering greater headroom in transient conditions.
• Physical dimensions: The SC62CB-3R3 measures 6.30mm × 6.20mm × 2.50mm; the SRN6045-3R3Y measures 6.00mm × 6.00mm × 4.50mm. PCB layout constraints may influence selection.
• Packaging format: SC62CB-3R3 is supplied in Tape & Reel; SRN6045-3R3Y is available in Cut Tape & Digi-Reel.

Frequently Asked Questions (FAQ)

Q: Can the SRN6045-3R3Y directly replace the SC62CB-3R3 in all applications?

A: The SRN6045-3R3Y is electrically compatible for inductance and current rating. However, the difference in shielding classification (Semi-Shielded vs. Shielded) and physical dimensions must be evaluated for your specific circuit design and PCB layout.

Q: What is the significance of the ±30% inductance tolerance?

A: The ±30% tolerance indicates the acceptable range of inductance variation from the nominal 3.3 µH value. Both parts share this tolerance specification, ensuring consistent circuit behavior within design parameters.

Q: How do the DC resistance values compare?

A: The SC62CB-3R3 specifies 30mOhm maximum; the SRN6045-3R3Y specifies 30.2mOhm maximum. This 0.2mOhm difference is negligible for most applications and falls within typical measurement uncertainty.

Q: What packaging considerations apply to substitution?

A: The SC62CB-3R3 is supplied in Tape & Reel format; the SRN6045-3R3Y is available in Cut Tape & Digi-Reel. Verify that your assembly process accommodates the substitute packaging format.

Q: Are both parts suitable for the full -40°C to 125°C temperature range?

A: Yes. Both the SC62CB-3R3 and SRN6045-3R3Y are rated for continuous operation across the -40°C to 125°C temperature range with no derating required within this specification.

Q: What does the Moisture Sensitivity Level (MSL) rating of 1 mean?

A: MSL 1 indicates unlimited shelf life without moisture absorption concerns. Both parts can be stored and handled without special moisture control measures, simplifying logistics and inventory management.