1N457

Overview

The onsemi 1N457 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 up to 4 A with a 1.0 s pulse width. 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 specified at 8.0 pF. Operating junction temperature reaches 175 °C, with storage capabilities from -65 °C to +200 °C.

Feature Summary

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

Applications

• General purpose switching circuits
• Signal processing applications
• Clamping and protection circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm packaging type, such as bulk or tape and reel quantities. Ensure compliance with RoHS directives and check for any recent product change notices that may affect specifications or availability before finalizing procurement plans.

Selection Notes

Select this component when a high-conductance small signal diode with low leakage is required. The DO-35 through-hole package suits standard PCB layouts. Confirm thermal management requirements align with the specified junction-to-ambient resistance and power dissipation limits for the intended operating environment.

Part Context

This part belongs to the 1N457 series of small signal diodes manufactured by onsemi. It is designed for general-purpose switching applications requiring reliable performance in axial lead packages. The series offers options for different packaging configurations to accommodate various manufacturing needs.

Replacement Considerations

Consult official datasheets for cross-reference data. Verify pinout compatibility and electrical ratings match the original design requirements before substituting.