1N459-T50R

Overview

The onsemi 1N459-T50R is a small signal switching diode housed in the DO-35 axial through-hole package. It features a maximum repetitive peak reverse voltage of 200 V and an average forward rectified current rating of 500 mA. The device exhibits a low reverse leakage current of 25 nA at 175 V and a forward voltage drop of 1 V at 100 mA. It supports a maximum surge current of 4 A and operates within a junction temperature range of -65 °C to +175 °C.

Feature Summary

• High conductance characteristics for efficient signal processing
• Low leakage current performance ensuring minimal power loss
• Robust thermal stability suitable for high-temperature environments

Applications

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

Procurement Notes

Verify the specific suffix T50R against official onsemi documentation to confirm packaging details, as standard 1N459 variants may differ. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as historical data indicates varying environmental compliance levels for this component series. Ensure the supplier provides valid traceability documents for quality assurance.

Selection Notes

Select this component when a 200 V reverse voltage rating and 500 mA forward current capacity are required in a compact axial leaded package. Consider the 175 °C maximum operating temperature for demanding thermal conditions. Compare specifications against alternative small-signal diodes if lower forward voltage or different package styles are necessary for the specific design constraints.

Part Context

This part belongs to the 1N459 series of general-purpose silicon rectifiers manufactured by onsemi. These diodes are widely utilized in electronic designs requiring reliable switching and rectification capabilities. The series is known for its balance of electrical performance and physical durability in standard through-hole mounting configurations.

Replacement Considerations

Direct substitutes include other 1N459 variants from different manufacturers such as Fairchild Semiconductor, provided they meet identical electrical ratings and package dimensions. Verify pinout compatibility and thermal characteristics before implementation.