1N4149_T50R

Single Diodes Overview

The onsemi 1N4149_T50R is a small signal switching diode housed in the DO-35 axial lead package. It features a maximum repetitive reverse voltage of 100 V and an average rectified forward current rating of 500 mA. The device exhibits a fast reverse recovery time of 4 ns, with a maximum forward voltage of 1.0 V at 10 mA. Electrical characteristics include a breakdown voltage of 75 V to 100 V and a total capacitance of 2 pF. Thermal management allows for a junction-to-ambient resistance of 300 °C/W and power dissipation up to 500 mW.

Single Diodes Feature Summary

• High-speed switching capability enabled by rapid reverse recovery time
• Glass-sealed hermetic construction ensuring environmental stability
• Low leakage current and low forward voltage drop for efficient operation

Single Diodes Applications

• General purpose switching circuits
• Clamping and protection applications
• High frequency signal processing

Single Diodes Procurement Notes

Verify that the specific T50 suffix corresponds to the tape and reel packaging configuration as defined in the manufacturer's ordering information. Confirm compliance with RoHS directives and check for any REACH SVHC declarations prior to integration into production assemblies.

Single Diodes Selection Notes

Select this component when high-speed switching performance is required within a standard axial lead form factor. Ensure the circuit design accommodates the 100 V peak inverse voltage limit and the thermal constraints associated with the specified power dissipation rating under expected operating conditions.

Single Diodes Part Context

This part belongs to the 1N4149 series of small signal diodes manufactured by onsemi. It utilizes the CASE 017AG mechanical outline, commonly referred to as DO-35. The device is designed for general-purpose applications requiring reliable switching behavior in compact through-hole configurations.

Single Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N4149 variants to ensure pinout compatibility and electrical parameter alignment. Verify that alternative sources meet the same DO-35 package dimensions and thermal ratings.