BAY72TR

Overview

The BAY72TR is a general-purpose small-signal rectifier diode manufactured by onsemi. It features a single-element configuration housed in the DO-35 axial leaded package, also designated as DO-204AH. The device is engineered for standard switching and rectification applications with a maximum repetitive peak reverse voltage of 125 V and an average forward rectified current rating of 200 mA. Constructed using silicon junction technology, it supports a wide operating temperature range from -65 °C to +175 °C. The component utilizes a glass passivation scheme for environmental protection and meets RoHS standards, ensuring compliance with modern manufacturing directives.

Feature Summary

• Utilizes silicon junction technology for reliable signal processing
• Features glass passivation for enhanced environmental durability
• Supports high-temperature operation up to 175 °C

Applications

• General purpose rectification circuits
• Signal processing and switching applications
• Protection against reverse polarity in low-power systems

Procurement Notes

Verify the specific ordering suffix to confirm packaging format, as variations exist between tape-and-reel and bulk configurations. Ensure the selected variant matches the required axial lead style and terminal finish specifications for your assembly process. Cross-reference the manufacturer datasheet to confirm compliance with current environmental regulations such as RoHS and REACH requirements before finalizing procurement.

Selection Notes

Select this component when a robust axial leaded diode is required for through-hole mounting. The 125 V reverse voltage rating suits low-voltage DC circuits, while the 200 mA current capacity handles moderate load demands. Consider the extended 175 °C junction temperature capability for environments where thermal management is challenging or ambient temperatures exceed standard industrial limits.

Part Context

This part belongs to onsemi’s portfolio of discrete semiconductor devices designed for standard electronic applications. The BAY72 series provides a cost-effective solution for basic rectification needs across consumer electronics and industrial equipment. Its axial package facilitates easy integration into legacy and new PCB designs requiring through-hole technology.

Replacement Considerations

Equivalent parts include the 1N4148W for similar switching characteristics in axial packages. Verify pinout compatibility and electrical ratings against alternatives like the BAS16 or BAS40 if space constraints allow for surface-mount substitutions.