BYT08PI-400RG

Overview

The BYT08PI-400RG is a fast recovery rectifier diode from STMicroelectronics, designed for switch mode power supplies and motor control circuits. It features an insulated TO-220AC package providing 2500 VRMS isolation. Key electrical parameters include a repetitive peak reverse voltage of 400 V, an average forward current of 8 A at Tc = 105°C, and a maximum forward voltage drop of 1.4 V to 1.5 V. The device exhibits a very low reverse recovery time of up to 35 ns (max) at Tj = 25°C, with a surge non-repetitive forward current rating of 100 A.

Feature Summary

• Insulated TO-220AC package offering 2500 VRMS insulation voltage
• Very low reverse recovery time for reduced switching losses
• Low noise turn-off switching characteristics
• Suitable for free-wheeling functions in converters

Applications

• Switch Mode Power Supplies
• Motor control circuits
• Free-wheeling function in converters

Procurement Notes

Verify the specific ordering suffix 'RG' against the official datasheet, as the provided documentation lists 'BYT08PI-400' without this suffix. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as standard datasheets may not explicitly detail environmental compliance markings for all suffix variations. Ensure the insulated package variant matches the design requirements for isolation voltage.

Selection Notes

Select this component when high-voltage isolation is required within a single package, eliminating the need for separate insulating materials. The 400 V rating suits applications operating below this threshold. Consider the thermal resistance of 3.5 °C/W for heat sink calculations. The 8 A average current rating defines the continuous load capacity, while the 100 A surge rating supports transient overload conditions typical in inductive loads.

Part Context

This part belongs to the BYT08P series of fast recovery rectifiers manufactured by STMicroelectronics. The series is characterized by optimized switching performance for high-frequency applications. The 'I' designation indicates the insulated version of the TO-220AC package, distinguishing it from the standard non-insulated counterpart. This family targets efficiency improvements in power conversion systems through minimized reverse recovery charge.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.