APC08F03-J DC DC Converter 3.3V 30W Equivalent & Substitute Parts

Part Overview

The APC08F03-J is a non-isolated Point-of-Load (PoL) module DC DC converter manufactured by ARTESYN / Advanced Energy. This component delivers a fixed 3.3V output at up to 8A from a 4V to 6V input supply, providing 30W of power in a compact surface-mount package. The APC08F03-J is classified as obsolete, making identification of functionally equivalent substitute components essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

APC08F03-J

ARTESYN / Advanced EnergyIn Stock: 818APC08F03-J Datasheet

Current PartRFQ

SMT10E-05W3V3J

ARTESYN / Advanced EnergyIn Stock: 2178SMT10E-05W3V3J Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete APC08F03-J is determined by the following critical electrical and mechanical parameters:

Output Voltage Compatibility: The substitute must deliver 3.3V output to maintain circuit functionality.

Output Current Capacity: The substitute must support a minimum of 8A continuous output current to meet or exceed the original specification.

Input Voltage Range: The substitute input range must encompass or exceed the 4V to 6V input specification of the original part. The SMT10E-05W3V3J accepts 3V to 5.5V input, which overlaps the critical 4V to 6V operating window of the APC08F03-J.

Mounting and Package Form Factor: Both components are surface-mount non-isolated PoL modules with compatible footprint dimensions, enabling direct board-level integration.

Single Output Configuration: Both parts provide a single regulated output, matching the original design requirement.

The SMT10E-05W3V3J qualifies as a functional substitute based on these parameters, with the additional benefit of active product status and enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SMT10E-05W3V3J is the manufacturer-recommended substitute for the obsolete APC08F03-J. Selection of this substitute is supported by the following engineering factors:

Product Status and Availability: The SMT10E-05W3V3J maintains active product status with 2130 units in current inventory, ensuring long-term procurement viability and supply chain continuity compared to the obsolete APC08F03-J.

Regulatory Compliance: The SMT10E-05W3V3J is RoHS compliant, meeting modern environmental and regulatory requirements. The original APC08F03-J is RoHS non-compliant, making the substitute preferable for new designs and updated systems subject to RoHS directives.

Electrical Performance Enhancement: The substitute provides 10A output current capacity versus the original 8A specification, delivering 36.3W versus 30W. This increased capacity provides design margin and supports higher load requirements without component replacement.

Thermal Performance: The SMT10E-05W3V3J operates across an extended temperature range of -40°C to 100°C compared to the original -40°C to 85°C, accommodating broader environmental conditions.

Efficiency Improvement: The substitute achieves 96% efficiency versus the original 93%, reducing thermal dissipation and improving overall system power delivery efficiency.

Form Factor Compatibility: Both components maintain compatible surface-mount footprints with minimal dimensional variation (height difference of 0.04 inches), enabling direct board-level substitution with standard PCB layout practices.

Frequently Asked Questions (FAQ)

Q: Can the SMT10E-05W3V3J directly replace the APC08F03-J on existing PCBs?

A: The SMT10E-05W3V3J is mechanically and electrically compatible for direct substitution. Both components are surface-mount non-isolated PoL modules with nearly identical footprint dimensions (33.5mm x 13.5mm versus 33.0mm x 13.5mm length and width). The height difference of 0.04 inches (0.28" to 0.32") is within standard PCB assembly tolerances. Electrical compatibility is confirmed by matching 3.3V output voltage and the substitute's 10A output current exceeding the original 8A requirement.

Q: What is the input voltage compatibility between these two parts?

A: The APC08F03-J accepts 4V to 6V input. The SMT10E-05W3V3J accepts 3V to 5.5V input. The overlap range of 4V to 5.5V ensures full compatibility within the original operating window. Systems designed for the 4V to 6V input range will operate within the substitute's specified 3V to 5.5V range, with the upper limit reduced by 0.5V. This reduction does not impact functionality in standard ITE applications.

Q: Are there differences in moisture sensitivity handling between these parts?

A: The APC08F03-J carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The SMT10E-05W3V3J carries MSL 3 (168 Hours), requiring storage in controlled humidity environments and baking procedures before reflow soldering if moisture absorption occurs. Standard component handling practices for MSL 3 devices apply, including desiccant packaging and shelf-life management.

Q: How do the power ratings compare?

A: The APC08F03-J is rated at 30W with 8A output current. The SMT10E-05W3V3J is rated at 36.3W with 10A output current. The substitute provides 20% additional power capacity, enabling support for higher load currents or future design margin without component replacement.

Q: What are the efficiency differences?

A: The APC08F03-J operates at 93% efficiency. The SMT10E-05W3V3J operates at 96% efficiency. The 3% efficiency improvement reduces thermal dissipation and improves overall system power delivery, particularly beneficial in thermally constrained applications.

Q: Is the SMT10E-05W3V3J suitable for new designs?

A: Yes. The SMT10E-05W3V3J is an active product with current manufacturer support, RoHS compliance, and extended operating temperature range (-40°C to 100°C). It is the appropriate choice for new designs requiring 3.3V, 8A+ output from 4V to 6V input supplies in non-isolated PoL applications.

Q: What certifications apply to the substitute part?

A: The SMT10E-05W3V3J is RoHS compliant and carries ECCN EAR99 classification. Both parts share the same HTSUS code (8504.40.9580), confirming equivalent tariff classification for import/export purposes.