BT145-800R,127

Scrs Overview

The BT145-800R,127 is a planar passivated Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It is housed in a TO-220 plastic package designed for through-hole mounting. The device supports a maximum repetitive peak reverse voltage of 800 V and an average on-state current of 16 A. It features a root-mean-square on-state current rating of 25 A and a non-repetitive peak on-state current capability of 300 A. The component operates with a maximum junction temperature of 125 °C and includes a gate trigger current maximum of 35 mA.

Scrs Feature Summary

• Planar passivated silicon construction providing high bidirectional blocking voltage capability
• Designed for applications requiring high current inrush capability
• Engineered for high thermal cycling performance

Scrs Applications

• Motor control systems
• Industrial static switching
• Domestic lighting controls
• Heating regulation circuits

Scrs Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package orientation and packing method. Confirm RoHS compliance status and lead-free plating specifications directly from the datasheet. Ensure the procurement channel provides valid traceability for industrial qualification requirements.

Scrs Selection Notes

Select this component when high bidirectional blocking voltage and robust thermal cycling performance are required. The TO-220 package facilitates effective heat dissipation for continuous operation. Verify that the 16 A average current rating meets the load requirements and that the 800 V voltage rating exceeds the circuit's peak inverse voltage.

Scrs Part Context

This SCR belongs to the BT145 series of glass-passivated thyristors intended for general-purpose industrial use. The component utilizes a plastic envelope to ensure durability under demanding electrical conditions. It serves as a reliable switching element in power electronics where high surge currents and thermal stability are critical operational factors.

Scrs Replacement Considerations

Cross-reference with other manufacturers' 800 V SCRs in TO-220 packages. Verify pinout compatibility and thermal resistance values before substitution.