DPA423G Equivalent & Substitute Parts Reference

Part Overview

The DPA423G is a DPA-Switch® Converter IC designed for Power Over Ethernet (PoE) and Telecom applications. This device functions as a voltage regulator with single output capability, converting input voltages in the 16V to 75V range to a 220V output. The DPA423G is classified as an obsolete product, which necessitates identification of active equivalent alternatives for continued system support and new design implementations.

Substiute Parts

DPA423G

Power IntegrationsIn Stock: 1521DPA423G Datasheet

Current PartRFQ

DPA423GN-TL

Power IntegrationsIn Stock: 19526DPA423GN-TL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DPA423G is determined by strict alignment with the following electrical and mechanical parameters:

Critical Matching Parameters:

• Base product number (DPA423)
• Input voltage range (16V ~ 75V)
• Output voltage (220V)
• Number of outputs (1)
• Operating temperature range (-40°C ~ 125°C)
• Package type (8-SMD, Gull Wing)
• Mounting type (Surface Mount)
• Manufacturer (Power Integrations)
• Series (DPA-Switch®)

The DPA423GN-TL qualifies as a direct substitute because it maintains identical electrical specifications and mechanical form factor while offering active product status and improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

DPA423GN-TL is the direct equivalent for DPA423G applications.

The DPA423GN-TL provides functional and electrical equivalence with the following advantages:

• Product Status: Active product with ongoing manufacturer support, eliminating obsolescence risk
• Compliance: RoHS Compliant, meeting current environmental and regulatory requirements
• Regulatory Alignment: REACH Unaffected status maintained; ECCN and HTSUS classifications identical
• Electrical Performance: All critical parameters (input/output voltage, temperature range, output count) are identical
• Mechanical Compatibility: Identical package type (8-SMD, Gull Wing) and mounting configuration ensure PCB-level compatibility

The primary difference is packaging format (Tape & Reel vs. Bulk) and moisture sensitivity level. The Tape & Reel format is standard for production environments and offers improved handling and traceability. The MSL 4 rating requires controlled storage conditions (72-hour floor life) compared to the unlimited MSL 1 rating of the original part.

Frequently Asked Questions (FAQ)

Q: Can DPA423GN-TL be used as a direct replacement for DPA423G in existing designs?

A: Yes. The DPA423GN-TL is electrically and mechanically identical to the DPA423G. All critical parameters including input voltage range (16V–75V), output voltage (220V), operating temperature (-40°C to 125°C), and package configuration (8-SMD, Gull Wing) are matched. PCB layout and circuit design require no modification.

Q: What is the difference between the packaging formats?

A: The DPA423G is supplied in bulk packaging, while the DPA423GN-TL is supplied in Tape & Reel (TR) format. Tape & Reel is the standard packaging for automated assembly and production environments, offering improved component handling, traceability, and reduced risk of damage during manufacturing processes.

Q: Does the Moisture Sensitivity Level (MSL) difference affect compatibility?

A: No, it does not affect electrical or mechanical compatibility. The MSL rating specifies storage and handling requirements. DPA423GN-TL has MSL 4 (72-hour floor life), requiring controlled storage conditions. Standard moisture control practices in production environments accommodate this requirement. The original DPA423G with MSL 1 (unlimited) has less stringent storage requirements but is obsolete.

Q: Why is RoHS compliance important for this substitution?

A: RoHS Compliance ensures the component meets current environmental regulations and is suitable for applications subject to regulatory requirements. The DPA423GN-TL's RoHS Compliant status aligns with modern manufacturing standards and regulatory expectations, whereas the non-compliant DPA423G may face restrictions in certain markets or applications.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts operate identically within the specified parameters. Input voltage conversion (16V–75V to 220V output), thermal performance (-40°C to 125°C operating range), and output characteristics are identical.

Q: What is the inventory status for these parts?

A: DPA423G (obsolete) has 1,468 pieces in stock. DPA423GN-TL (active) has 19,499 pieces in stock, providing greater availability for new orders and production requirements.