1N4148-T50A

Single Diodes Overview

The onsemi 1N4148-T50A is a small signal switching diode housed in a DO-204AH (DO-35) axial lead package. It features a maximum repetitive reverse voltage of 100 V and an average rectified forward current rating of 200 mA. The device exhibits a maximum DC forward current of 300 mA and a peak forward surge current capability of 1.0 A for a 1.0 s pulse width. Electrical characteristics include a maximum forward voltage of 1.0 V at 10 mA, a maximum reverse leakage current of 5.0 µA at 75 V, and a total capacitance of 4.0 pF at 0 V reverse bias and 1.0 MHz frequency. The component operates within a junction temperature range of -55°C to +175°C with a power dissipation limit of 500 mW.

Single Diodes Feature Summary

• High-speed switching performance characterized by a 4 ns maximum reverse recovery time.
• Hermetically sealed glass construction providing robust environmental protection.

Single Diodes Applications

• General-purpose high-speed switching circuits
• Clamping applications
• Protection circuits

Single Diodes Procurement Notes

Verify the specific ordering suffix T50A corresponds to the Ammo pack configuration as defined in the official onsemi documentation. Confirm that the DO-204AH (DO-35) package dimensions align with your PCB footprint requirements. Ensure compliance with RoHS standards and REACH SVHC regulations applicable to your region before finalizing procurement.

Single Diodes Selection Notes

Select this component when a standard silicon switching diode with fast recovery characteristics is required. The 100 V reverse voltage rating suits low-voltage logic and signal processing environments. Verify thermal management needs against the 500 mW power dissipation limit and derating curves if operating above ambient temperatures.

Single Diodes Part Context

This part belongs to the 1N91x and 1N4x48 family of small signal diodes manufactured by onsemi. It shares electrical specifications with other variants in the series but differs in packaging and packing methods. The T50A suffix specifically denotes the Ammo pack format within the DO-204AH (DO-35) axial lead category.

Single Diodes Replacement Considerations

The datasheet lists 1N4148TA and 1N4148-T26A as electrically equivalent alternatives within the same package family. Other members of the 1N91x/1N4x48 family may serve as substitutes if package compatibility is maintained.

Single Diodes FAQ

What is the maximum reverse recovery time for this diode?

The maximum reverse recovery time (trr) is specified as 4.0 ns under test conditions of IF = 10 mA, VR = 6.0 V, Irr = 1.0 mA, and RL = 100 Ω.

How does the reverse leakage current vary with temperature?

At TA = 150°C and VR = 20 V, the reverse leakage current increases to a maximum of 50 µA, compared to 0.025 µA at 25°C.