SC3326F-101 Equivalent & Substitute Parts

Part Overview

The SC3326F-101 is a 100 µH unshielded wirewound inductor manufactured by Signal Transformer, rated for 1.4 A continuous current with a maximum DC resistance of 280mOhm. 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 782 units in stock. Substitute parts are identified when equivalent inductance values, current ratings, and operating temperature ranges align with application requirements while maintaining compliance certifications.

Substiute Parts

SC3326F-101

Signal TransformerIn Stock: 851SC3326F-101 Datasheet

Current PartRFQ

DR124-101-R

Eaton - Electronics DivisionIn Stock: 1938DR124-101-R Datasheet

MFR RecommendedRFQ

UP2B-101-R

Eaton - Electronics DivisionIn Stock: 1232UP2B-101-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC3326F-101 are qualified based on the following electrical and mechanical parameters:

• Inductance Value: 100 µH (exact match required)
• Inductance Tolerance: ±20% (matching tolerance specification)
• Current Rating: Minimum 1.2 A (acceptable for applications requiring ≤1.4 A)
• DC Resistance: ≤308mOhm (within acceptable operating margin)
• Operating Temperature Range: Minimum -40°C to 85°C (covers industrial applications)
• Mounting Type: Surface Mount (package compatibility)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)
• Inductance Test Frequency: 100 kHz (measurement standard consistency)

The substitute parts DR124-101-R and UP2B-101-R meet these criteria. DR124-101-R provides higher current rating (1.5 A) with shielded construction, while UP2B-101-R maintains unshielded configuration with lower current rating (1.2 A) and reduced operating temperature ceiling.

Parameter Comparison

Engineering Selection Recommendations

SC3326F-101 (Primary Part): Select when unshielded construction is required and full operating temperature range to 125°C is necessary. Active production status with 782 units in stock ensures availability.

DR124-101-R (Substitute - Higher Current Capacity): Select when shielded construction is required to reduce electromagnetic interference or when current rating above 1.4 A provides design margin. Ferrite drum core construction with 1.5 A rating and full -40°C to 125°C temperature range. Cut Tape and Digi-Reel packaging options available with 1895 units in stock.

UP2B-101-R (Substitute - Lower Current, Unshielded): Select for unshielded applications where current requirement does not exceed 1.2 A and operating temperature ceiling of 85°C is acceptable. Ferrite drum core construction with 270.7mOhm DC resistance. Tape & Reel packaging with 1168 units in stock.

All three parts maintain ROHS3 compliance and active production status, ensuring regulatory conformance and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can DR124-101-R replace SC3326F-101 in all applications?

A: DR124-101-R is electrically compatible for inductance and current rating. The primary differences are shielded construction (versus unshielded) and identical operating temperature range (-40°C to 125°C). Shielded construction may affect circuit layout and electromagnetic coupling characteristics. Mechanical dimensions differ: DR124-101-R is 12.50mm × 12.50mm × 4.50mm versus SC3326F-101 at 13.45mm × 9.90mm × 8.00mm. PCB footprint compatibility must be verified.

Q: Is UP2B-101-R suitable as a direct substitute?

A: UP2B-101-R maintains unshielded construction matching SC3326F-101. However, current rating is reduced to 1.2 A (versus 1.4 A) and operating temperature maximum is 85°C (versus 125°C). This part is suitable only for applications where current does not exceed 1.2 A and maximum ambient temperature remains below 85°C. DC resistance of 270.7mOhm is lower than SC3326F-101 at 280mOhm, providing improved efficiency margin.

Q: What are the packaging differences?

A: SC3326F-101 is supplied in Tape & Reel (TR) format. DR124-101-R is available in Cut Tape (CT) and Digi-Reel® formats. UP2B-101-R is supplied in Tape & Reel (TR) format. Packaging selection affects handling, storage, and automated assembly compatibility.

Q: Do all three parts meet the same compliance standards?

A: All three parts are ROHS3 compliant and have Moisture Sensitivity Level (MSL) of 1 (Unlimited). ECCN classification is EAR99 for all parts. REACH status is unaffected for SC3326F-101 and UP2B-101-R. Compliance certifications are equivalent across all three options.

Q: What is the saturation current difference between these parts?

A: SC3326F-101 has saturation current (Isat) of 2.5A. DR124-101-R has Isat of 1.79A. UP2B-101-R has Isat of 950mA. Saturation current indicates the point at which inductance begins to degrade under high current stress. Applications requiring operation near maximum current ratings should account for these differences.