1N457A

Single Diodes Overview

The onsemi 1N457A is a small signal switching diode housed in a DO-35 axial lead package. It features a maximum repetitive reverse voltage of 70 V and an average rectified forward current rating of 200 mA. The device supports a non-repetitive peak forward surge current of 4 A with a pulse width of 1.0 s. Electrical characteristics include a forward voltage of 1.0 V at 100 mA and a reverse leakage current of 25 nA at 60 V. Total capacitance is limited to 8.0 pF at 0 V bias. Operating junction temperature reaches 175 °C, with storage temperatures spanning -65 to +200 °C.

Single Diodes Feature Summary

• High conductance design for efficient signal switching
• Low leakage current performance
• Hermetically sealed glass construction

Single Diodes Applications

• General purpose switching circuits
• Signal rectification applications
• Protection against transient voltages

Single Diodes Procurement Notes

Verify the specific ordering suffix to confirm packaging format, as bulk quantities differ from tape and reel options. Ensure compliance with RoHS directives by checking the component marking for lead-free status. Confirm that the DO-35 package dimensions align with the target PCB layout requirements before finalizing procurement decisions.

Single Diodes Selection Notes

Select this component when a hermetically sealed axial lead diode is required for high reliability. The 70 V breakdown voltage suits low-voltage signal processing tasks. Consider the thermal resistance and power dissipation limits for circuit designs involving continuous current loads or elevated ambient temperatures.

Single Diodes Part Context

This part belongs to the 1N457 series of small signal diodes manufactured by onsemi. It serves as a general-purpose switching device suitable for various electronic applications requiring reliable performance. The DO-35 package provides a standard footprint for through-hole mounting technologies commonly used in industrial and consumer electronics.

Single Diodes Replacement Considerations

The 1N457TR variant offers identical electrical specifications but utilizes tape and reel packaging instead of bulk. Verify mechanical compatibility when substituting between different packaging formats within the same product family.