DPA424SN-TL Equivalent & Substitute Parts

Part Overview

The DPA424SN-TL is a DPA-Switch® Converter IC designed for Power Over Ethernet and Telecom Applications. This single-output voltage regulator operates across an input voltage range of 16V to 75V and delivers a 220V output. The device is packaged in S-PAK surface mount configuration and is rated for operating temperatures from -40°C to 125°C.

The DPA424SN-TL has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this converter topology.

Substiute Parts

DPA424SN-TL

Power IntegrationsIn Stock: 2997DPA424SN-TL Datasheet

Current PartRFQ

DPA424R-TL

Power IntegrationsIn Stock: 4068DPA424R-TL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DPA424SN-TL is determined by strict alignment with the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Identical base product number (DPA424)
• Identical series designation (DPA-Switch®)
• Matching input voltage range (16V ~ 75V)
• Matching output voltage (220V)
• Matching number of outputs (1)
• Matching operating temperature range (-40°C ~ 125°C)

Mechanical Compatibility Criteria:

• Surface mount mounting type
• Equivalent or compatible package footprint
• Matching moisture sensitivity level (MSL 4)

Regulatory Compliance Criteria:

• REACH status alignment
• ECCN classification alignment

The DPA424R-TL meets all electrical parameters and regulatory requirements. The primary distinction is the package type: the substitute uses TO-263-7C (D2PAK) instead of S-PAK, which represents a different physical footprint and lead configuration while maintaining electrical equivalence.

Parameter Comparison

Engineering Selection Recommendations

DPA424R-TL as Primary Substitute:

The DPA424R-TL is the qualified substitute for the obsolete DPA424SN-TL. Both devices share identical electrical specifications, including input voltage range (16V ~ 75V), output voltage (220V), single output configuration, and operating temperature range (-40°C ~ 125°C). Both maintain MSL 4 moisture sensitivity classification and REACH Unaffected regulatory status.

The DPA424R-TL carries Active product status, ensuring ongoing availability and manufacturing support from Power Integrations. This addresses the primary limitation of the obsolete DPA424SN-TL.

Package Transition Consideration:

The substitution requires a package change from S-PAK to TO-263-7C (D2PAK with 6 leads plus tab). This transition necessitates PCB layout modification, including footprint redesign and trace routing adjustments. The TO-263-7C package provides enhanced thermal performance through its larger tab structure, which may offer thermal management advantages in applications requiring improved heat dissipation.

Compliance Alignment:

Both parts maintain identical ECCN (EAR99) and REACH classifications, ensuring regulatory compliance continuity across the substitution.

Frequently Asked Questions (FAQ)

Q: Can the DPA424R-TL directly replace the DPA424SN-TL without PCB modification?

A: No. The DPA424R-TL uses TO-263-7C packaging while the DPA424SN-TL uses S-PAK packaging. These packages have different physical footprints and lead configurations. PCB layout redesign is required, including footprint replacement and trace routing adjustments.

Q: Are the electrical specifications identical between DPA424SN-TL and DPA424R-TL?

A: Yes. Both devices operate with identical input voltage range (16V ~ 75V), output voltage (220V), single output configuration, and operating temperature range (-40°C ~ 125°C). Electrical performance is equivalent.

Q: What is the significance of the product status change from Obsolete to Active?

A: The DPA424R-TL's Active status indicates ongoing manufacturing, quality assurance, and supply chain support from Power Integrations. This ensures long-term availability and eliminates the supply constraints associated with obsolete components.

Q: Do both parts share the same moisture sensitivity requirements?

A: Yes. Both the DPA424SN-TL and DPA424R-TL are classified as MSL 4 (72 Hours), requiring identical moisture handling and storage protocols during manufacturing and assembly.

Q: Are there regulatory compliance differences between the two parts?

A: No. Both parts maintain identical REACH Unaffected status and EAR99 ECCN classification, ensuring regulatory compliance continuity.

Q: What are the thermal implications of the package change?

A: The TO-263-7C package features a larger thermal tab compared to S-PAK, potentially providing improved thermal performance. Applications requiring enhanced heat dissipation may benefit from this package transition.

Q: Is the DPA424R-TL the only available substitute?

A: Based on the provided substitute list, the DPA424R-TL is the identified equivalent part meeting all electrical and regulatory parameters for the DPA424SN-TL.