PLN071-ER20A05S

Switching Converter, SMPS Transformers Overview

The PLN071-ER20A05S is a board-mount planar transformer from Bourns Inc., designed for DC to DC power conversion applications. It utilizes an ER20 core configuration and supports a flyback converter topology. The component operates at a frequency of 200 kHz with a power rating of 71 watts. It accepts primary input voltages ranging from 36 VDC to 72 VDC and provides a fixed secondary output voltage of 5 VDC. The device features an isolation voltage of 1.5 kV and measures 22.5 x 20.5 x 7.5 mm.

Switching Converter, SMPS Transformers Feature Summary

• Low leakage inductance design
• Low profile surface mount construction
• Flyback converter topology support

Switching Converter, SMPS Transformers Applications

• DC to DC power supply modules
• Board-mounted isolated power conversion systems
• High-frequency switching power supplies

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific part number PLN071-ER20A05S against official Bourns documentation to confirm the 5V output specification. Ensure compatibility with the required 36-72V input range and 200kHz operating frequency. Confirm that the ER20 package dimensions and surface mount requirements align with the target PCB layout. Check for any specific handling or storage instructions provided in the manufacturer datasheet.

Switching Converter, SMPS Transformers Selection Notes

Select this component when a compact, high-power planar transformer is required for flyback topologies. The 71W rating and 200kHz frequency suitability make it appropriate for dense power designs. Consider the 1.5kV isolation requirement and the fixed 5V output constraint during circuit design. Evaluate thermal management needs given the power density and low-profile form factor.

Switching Converter, SMPS Transformers Part Context

This model belongs to the Bourns PLN071 series of planar transformers. The series offers various output voltage options within the ER20 package size. The PLN071-ER20A05S specifically denotes the 5V output variant. This series is engineered for surface mount assembly, providing a low-profile solution for modern electronic equipment requiring efficient power isolation.

Switching Converter, SMPS Transformers Replacement Considerations

Consult the official Bourns PLN071 series datasheet for cross-reference information. Verify electrical parameters such as power rating, isolation voltage, and pinout compatibility before substitution. Ensure the replacement component matches the required 200kHz operating frequency and ER20 core type.