1N4448-T

Overview

The Vishay General Semiconductor - Diodes Division 1N4448-T is a silicon epitaxial planar fast switching diode housed in the DO-35 axial through-hole package. It features a maximum DC blocking voltage of 75 V and an average rectified output current of 150 mA. The device exhibits a reverse recovery time of 4 ns, with a maximum forward voltage of 1.0 V at 100 mA and a peak reverse current of 25 nA at 20 V. Operating temperatures range from -65°C to +175°C, and it complies with RoHS directives.

Feature Summary

• Fast switching speed suitable for high-frequency applications
• Silicon epitaxial planar construction for reliability
• Lead-free finish compliant with RoHS standards

Applications

• General purpose rectification
• High-speed switching circuits

Procurement Notes

Verify that the specific ordering suffix corresponds to the tape and reel packaging configuration rather than bulk or ammo pack variants. Confirm compliance requirements against the latest manufacturer documentation, as datasheets may be updated without notice. Ensure the component meets environmental specifications relevant to the target deployment region.

Selection Notes

Select this component when a standard fast switching diode with a 75 V rating is required in a DO-35 package. Note that the source document indicates this series is not recommended for new designs; consider surface mount alternatives like the 1N4448W if space constraints or modern manufacturing processes are priorities.

Part Context

This part belongs to the 1N4448 family of small signal switching diodes manufactured by Vishay under license from Diodes Incorporated. It serves as a through-hole alternative to surface mount packages, maintaining the electrical characteristics of the standard 1N4448 while offering specific packaging options for automated assembly via tape and reel.

Replacement Considerations

Direct substitutes include the 1N4448-A (ammo pack) or generic 1N4448 equivalents from other manufacturers. For new designs, the datasheet recommends using the 1N4448W surface mount variant instead.