APQ3225-3840-A

Switching Converter, SMPS Transformers Overview

The APQ3225-3840-A is a power inductor manufactured by Allied Components International, designed for use as a PFC choke. It features an inductance of 175µH with a tolerance of ±10%. The component supports a rated current of 8.8A and has a maximum DC resistance (DCR) of 80mΩ. It operates within a temperature range of -30°C to +120°C. Electrical specifications are measured at 25°C, 1kHz frequency, and 1Vrms. The device offers high isolation capabilities, rated at 1000Vac and 500VDC. Physical dimensions include a length of approximately 36.50mm, width of 35.50mm, and a maximum seated height of 27.50mm.

Switching Converter, SMPS Transformers Feature Summary

• Designed specifically for Power Factor Correction (PFC) applications as a choke inductor.
• Provides robust electrical isolation rated at 1000Vac and 500VDC for safety compliance.
• Constructed to withstand operating temperatures ranging from -30°C to +120°C.

Switching Converter, SMPS Transformers Applications

• Power Factor Correction circuits in switch-mode power supplies
• High-voltage isolation requirements in industrial power electronics
• Energy storage and filtering in AC-DC conversion systems

Switching Converter, SMPS Transformers Procurement Notes

Verify the manufacturer part number APQ3225-3840-A against official Allied Components International documentation to ensure authenticity. Confirm that the received components match the specified 175µH inductance and 8.8A rated current parameters. Check for RoHS compliance markings if environmental regulations apply to your assembly process. Ensure handling procedures respect the mechanical dimensions and thermal ratings defined in the datasheet.

Switching Converter, SMPS Transformers Selection Notes

Select this component when a 175µH inductance value is required for PFC stages with an 8.8A current capacity. Consider the physical footprint of 36.50mm x 35.50mm x 27.50mm for PCB layout constraints. The 80mΩ DCR specification impacts efficiency calculations; verify thermal performance under load conditions. The high voltage isolation rating makes it suitable for applications requiring significant potential difference between windings or ground.

Switching Converter, SMPS Transformers Part Context

This inductor belongs to the PQ3225 series, which utilizes a specific core geometry optimized for high-power density applications. The 'APQ' prefix typically denotes specific packaging or variant characteristics within the manufacturer's lineup. It serves as a critical passive component in managing energy transfer and harmonic reduction in modern power supply architectures.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes must match the 175µH inductance, 8.8A current rating, and similar physical dimensions. Verify that alternative parts offer comparable 1000Vac isolation and operate within the same -30°C to +120°C temperature range. Cross-reference DCR values to ensure equivalent efficiency profiles in the target circuit design.