SC3326F-150 Equivalent & Substitute Parts

Part Overview

The SC3326F-150 is a 15 µH unshielded wirewound inductor manufactured by Signal Transformer, rated for 4 A continuous current with a maximum DC resistance of 47 mOhm. This component is classified as Active and is ROHS3 compliant. Alternative parts may be required due to inventory constraints, application-specific shielding requirements, or design optimization for specific thermal or spatial conditions.

Substiute Parts

SC3326F-150

Signal TransformerIn Stock: 745SC3326F-150 Datasheet

Current PartRFQ

DR124-150-R

Eaton - Electronics DivisionIn Stock: 2510DR124-150-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC3326F-150 is permissible with the DR124-150-R based on the following alignment of critical electrical parameters:

• Inductance Match: Both parts specify 15 µH at 100 kHz test frequency with ±20% tolerance
• Inductance Tolerance: Identical ±20% specification ensures interchangeability within design margins
• Operating Temperature Range: Both rated -40°C ~ 125°C
• Compliance: Both ROHS3 compliant and REACH unaffected
• Mounting Type: Both surface mount components
• Packaging: Both supplied in Tape & Reel format

Differences in current rating (4 A vs. 3.6 A), saturation current (6.5 A vs. 4.62 A), DC resistance (47 mOhm vs. 44.8 mOhm), shielding (unshielded vs. shielded), and physical dimensions must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both SC3326F-150 and DR124-150-R maintain Active product status and full ROHS3 compliance with unlimited moisture sensitivity ratings. Selection between these parts depends on application-specific constraints:

The SC3326F-150 provides higher current handling capacity (4 A rated, 6.5 A saturation) and is suitable for applications requiring maximum current margin without electromagnetic shielding considerations.

The DR124-150-R offers shielded construction with reduced physical height (4.50 mm vs. 8.00 mm), lower saturation current (4.62 A), and improved DC resistance (44.8 mOhm vs. 47 mOhm). This configuration is appropriate for space-constrained layouts or applications requiring electromagnetic isolation.

Both parts are certified for identical temperature ranges and regulatory compliance, ensuring functional equivalence within their respective electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can DR124-150-R directly replace SC3326F-150 in all applications?

A: Direct replacement is permissible only when the application current requirement does not exceed 3.6 A continuous or 4.62 A saturation. The DR124-150-R's lower current ratings and shielded construction must be verified against circuit design specifications.

Q: What is the impact of shielding differences between these parts?

A: The SC3326F-150 is unshielded, while the DR124-150-R features shielded drum core construction. Shielding reduces electromagnetic radiation and susceptibility to external fields. Selection depends on EMI/EMC requirements and circuit layout sensitivity.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: No. The SC3326F-150 measures 13.45mm x 9.90mm with 8.00mm height, while the DR124-150-R measures 12.50mm x 12.50mm with 4.50mm height. PCB footprint and clearance verification is required before substitution.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both SC3326F-150 and DR124-150-R are ROHS3 compliant, REACH unaffected, with MSL rating 1 (unlimited), and operate across -40°C to 125°C.

Q: What is the significance of DC resistance differences?

A: The SC3326F-150 specifies 47 mOhm maximum DCR, while the DR124-150-R specifies 44.8 mOhm maximum. Lower DCR reduces resistive losses and heat generation. For high-current applications, this difference may impact thermal performance.