FDLL4151

Single Diodes Overview

The FDLL4151 is a small signal diode manufactured by onsemi, formerly Fairchild Semiconductor. It features a maximum repetitive reverse voltage of 75 V and an average rectified forward current of 200 mA. The device exhibits a forward voltage of 1 V at 50 mA and a reverse current of 50 nA at 50 V. Electrical characteristics include a total capacitance of 4 pF at 1.0 MHz and a reverse recovery time ranging from 2 ns to 4 ns depending on test conditions. Thermal ratings specify a power dissipation of 500 mW and a junction-to-ambient thermal resistance of 350 °C/W.

Single Diodes Feature Summary

• Combines high forward conductance with fast switching speed in a glass leadless package
• Provides high blocking voltages suitable for general purpose applications
• Features hermetically sealed construction for enhanced reliability

Single Diodes Applications

• General purpose switching circuits
• High frequency signal processing
• Fast recovery rectification tasks

Single Diodes Procurement Notes

Verify the manufacturer origin carefully as onsemi acquired Fairchild Semiconductor; datasheets may retain legacy branding. Confirm the specific revision number matches your design requirements. Ensure sourcing through authorized distributors to avoid counterfeit components. Check for RoHS compliance status if required by your manufacturing standards. Validate that the SOD-80 package dimensions align with your PCB footprint specifications.

Single Diodes Selection Notes

Select this component when a compact surface mount solution is required for fast switching applications. The LL-34 package offers space efficiency compared to traditional axial leads. Consider the 75 V reverse voltage rating against your circuit's peak inverse voltage requirements. Evaluate the 500 mW power dissipation capability for thermal management in dense layouts.

Single Diodes Part Context

This component belongs to the family of small signal diodes designed for efficient signal handling. It utilizes the SOD-80 (LL-34) surface mount package standard. The device integrates silicon junction technology optimized for rapid charge carrier removal. It serves as a robust alternative to larger through-hole packages in modern electronics.

Single Diodes Replacement Considerations

FDLL4148

Single Diodes FAQ

How is the cathode terminal identified on the FDLL4151?

The cathode terminal is indicated by the first color band on the device body.

What is the maximum operating junction temperature?

The maximum operating junction temperature is 200 °C.