SC3316F-6R8 Equivalent & Substitute Parts

Part Overview

The SC3316F-6R8 is a 6.8 µH unshielded wirewound inductor manufactured by Signal Transformer, rated for 4.5 A continuous current with a maximum DC resistance of 27 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is specified for 100 kHz inductance testing. The part is actively produced and ROHS3 compliant, making it suitable for modern electronic applications requiring fixed inductance in compact form factors.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within broader electrical or thermal specifications.

Substiute Parts

SC3316F-6R8

Signal TransformerIn Stock: 971SC3316F-6R8 Datasheet

Current PartRFQ

B82476B1682M100

EPCOS - TDK ElectronicsIn Stock: 1219B82476B1682M100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC3316F-6R8 is permissible when the replacement part maintains the following critical parameters:

• Inductance value of 6.8 µH with ±20% tolerance
• Unshielded construction
• Surface mount packaging
• Wirewound construction type
• Current rating equal to or greater than 4.5 A
• DC resistance equal to or less than 27 mOhm
• Operating temperature range encompassing or exceeding -40°C to 125°C
• ROHS3 compliance and MSL 1 rating

The B82476B1682M100 from EPCOS - TDK Electronics meets these substitution criteria with improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The B82476B1682M100 is a direct substitute for the SC3316F-6R8 based on electrical parameter compatibility and compliance certifications. The substitute part provides improved performance margins: higher current rating (4.8 A versus 4.5 A), lower DC resistance (21 mOhm versus 27 mOhm maximum), and extended operating temperature range (-55°C to 150°C versus -40°C to 125°C). Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring equivalent environmental and reliability standards. The B82476B1682M100 includes AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can the B82476B1682M100 replace the SC3316F-6R8 in all applications?

A: Yes, provided the application operates within the specified parameters. The substitute part meets or exceeds all critical electrical requirements: identical inductance value and tolerance, higher current rating, lower DC resistance, and broader operating temperature range.

Q: What is the significance of the lower DC resistance in the substitute part?

A: Lower DC resistance (21 mOhm versus 27 mOhm) reduces resistive losses and heat generation during operation, improving efficiency and thermal performance in the circuit.

Q: Are there physical dimension differences between these parts?

A: Yes. The SC3316F-6R8 measures 0.530" L x 0.390" W x 0.205" H (13.45mm x 9.90mm x 5.21mm). The B82476B1682M100 measures 0.510" L x 0.370" W x 0.200" H (12.95mm x 9.40mm x 5.08mm). Both are nonstandard packages; verify PCB layout compatibility before substitution.

Q: Do both parts require the same handling and storage conditions?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: What certifications does the substitute part carry?

A: The B82476B1682M100 carries AEC-Q200 automotive qualification in addition to ROHS3 compliance, providing enhanced reliability documentation for applications requiring automotive-grade components.