SSL3401HN/1Y LED Driver IC Equivalent & Substitute Parts

Part Overview

The SSL3401HN/1Y is an AC DC offline switcher LED driver IC manufactured by NXP USA Inc., designed for lighting applications. This component features a 32-HVQFN (5x5) surface mount package and operates across a 2.6V to 3.6V supply voltage range at 12.5kHz frequency. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

SSL3401HN/1Y

NXP USA Inc.In Stock: 948SSL3401HN/1Y Datasheet

Current PartRFQ

RT7320GSP

Richtek USA Inc.In Stock: 2727RT7320GSP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SSL3401HN/1Y is determined by the following critical parameters:

• Device Type: AC DC offline switcher topology for LED driver applications
• Supply Voltage Range: Operating range of 2.6V to 3.6V
• Frequency: 12.5kHz switching frequency
• Package Compatibility: Surface mount configuration with exposed pad design
• Compliance Requirements: ROHS3 compliance and REACH unaffected status
• Thermal Range: Operating temperature 0°C to 105°C

The RT7320GSP from Richtek USA Inc. is identified as a manufacturer-recommended substitute. While the RT7320GSP operates in a different package format (8-SOP-EP versus 32-HVQFN), it maintains functional equivalence as an AC DC offline switcher LED driver with ROHS3 compliance and identical REACH status.

Parameter Comparison

Engineering Selection Recommendations

Both the SSL3401HN/1Y and RT7320GSP share identical compliance certifications (ROHS3, REACH unaffected) and export classifications (EAR99, HTSUS 8542.39.0001), confirming regulatory equivalence. Both components are classified as obsolete products, indicating end-of-life status from their respective manufacturers.

The primary consideration for substitution is package footprint compatibility. The SSL3401HN/1Y uses a 32-HVQFN (5x5) package, while the RT7320GSP uses an 8-SOP-EP package. PCB layout redesign is required if transitioning between these components. Both maintain surface mount technology and exposed pad thermal management design.

Frequently Asked Questions (FAQ)

Q: Can the RT7320GSP directly replace the SSL3401HN/1Y without PCB modification?

A: No. The SSL3401HN/1Y uses a 32-HVQFN (5x5) package while the RT7320GSP uses an 8-SOP-EP package. PCB footprint redesign is necessary for physical and electrical integration.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the SSL3401HN/1Y and RT7320GSP are ROHS3 compliant and REACH unaffected, meeting current environmental standards.

Q: What is the significance of the obsolete product status?

A: Both components are classified as obsolete, indicating discontinued manufacturing. Inventory availability is limited, and long-term sourcing should consider alternative active products or design migration strategies.

Q: Do both parts have identical moisture sensitivity requirements?

A: Yes. Both components carry MSL 3 (168 Hours) rating, requiring identical handling and storage protocols during manufacturing and assembly.

Q: Are there differences in supply voltage operating ranges between these parts?

A: Yes. The SSL3401HN/1Y operates at 2.6V to 3.6V supply voltage, while the RT7320GSP operates at 0V to 100V. The RT7320GSP accommodates a significantly wider input voltage range.