SC3316F-220 Equivalent & Substitute Parts

Part Overview

The SC3316F-220 is a 22 µH unshielded wirewound inductor manufactured by Signal Transformer, rated for 2.7 A continuous current with 85 mOhm maximum DC resistance. 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 737 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design optimization, or inventory availability.

Substiute Parts

SC3316F-220

Signal TransformerIn Stock: 783SC3316F-220 Datasheet

Current PartRFQ

IDC5020ER220M

Vishay DaleIn Stock: 1615IDC5020ER220M Datasheet

MFR RecommendedRFQ

UP2B-220-R

Eaton - Electronics DivisionIn Stock: 16278UP2B-220-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC3316F-220 is determined by the following critical parameters:

• Inductance Value: 22 µH ±20% tolerance
• Current Rating: Minimum 2.7 A continuous current capability
• DC Resistance: Maximum 85 mOhm
• Saturation Current (Isat): Minimum 2.6 A
• Shielding Configuration: Unshielded
• Mounting Type: Surface Mount
• Operating Temperature: Minimum -40°C to 125°C range
• Compliance: ROHS3 and REACH Unaffected status

The identified substitute parts meet these electrical and mechanical requirements within the specified tolerances. Dimensional variations are acceptable provided the component fits the intended PCB footprint and assembly process.

Parameter Comparison

Engineering Selection Recommendations

IDC5020ER220M (Vishay Dale): This substitute maintains identical electrical specifications to the SC3316F-220, including 22 µH inductance, 2.7 A current rating, 2.6 A saturation current, and 85 mOhm maximum DC resistance. Operating temperature range matches the main part (-40°C to 125°C). ROHS3 compliance and MSL 1 rating are equivalent. Dimensional differences are minor (12.95mm × 9.40mm vs. 13.45mm × 9.90mm). This part is recommended as the primary substitute with 1579 units available.

UP2B-220-R (Eaton - Electronics Division): This substitute provides 22 µH inductance with ±20% tolerance and meets the 2.7 A current requirement. The DC resistance is lower at 61.7 mOhm maximum, providing improved thermal performance. However, the saturation current is specified at 2.0 A, which is below the 2.6 A saturation point of the main part. The operating temperature range is limited to -40°C to 85°C, which does not extend to the full 125°C upper limit of the SC3316F-220. ROHS3 compliance and MSL 1 rating are maintained. This part is suitable for applications where the reduced temperature range and lower saturation current are acceptable. Inventory availability is highest at 16263 units.

Frequently Asked Questions (FAQ)

Q: Can IDC5020ER220M be used as a direct replacement for SC3316F-220?

A: Yes. The IDC5020ER220M meets all critical electrical parameters: 22 µH inductance, 2.7 A current rating, 2.6 A saturation current, and 85 mOhm maximum DC resistance. Operating temperature range (-40°C to 125°C) and compliance certifications are identical. Dimensional variations are within acceptable tolerances for surface mount assembly.

Q: What are the limitations of UP2B-220-R as a substitute?

A: The UP2B-220-R has two parameter deviations: saturation current is 2.0 A instead of 2.6 A, and the maximum operating temperature is 85°C instead of 125°C. These limitations must be evaluated against the specific application requirements. If the circuit operates above 85°C or requires saturation margin above 2.0 A, this part is not suitable.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SC3316F-220, IDC5020ER220M, and UP2B-220-R are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Do the substitute parts have different package dimensions?

A: Yes. SC3316F-220 is 13.45mm × 9.90mm × 5.21mm. IDC5020ER220M is 12.95mm × 9.40mm × 5.21mm. UP2B-220-R is 13.97mm × 10.41mm × 6.00mm. Height differences may affect PCB layout and assembly clearance. Verify footprint compatibility before design implementation.

Q: Which substitute has the best DC resistance performance?

A: UP2B-220-R has the lowest maximum DC resistance at 61.7 mOhm, compared to 85 mOhm for both SC3316F-220 and IDC5020ER220M. Lower DC resistance reduces power dissipation and heat generation in the inductor.

Q: What is the inductance tolerance for all parts?

A: All three parts have ±20% inductance tolerance at 100 kHz test frequency.