FMN1T148

Diode Arrays Overview

The FMN1T148 is a quad switching diode array manufactured by ROHM Semiconductor, housed in an SMD5 (SOT-25) surface-mount package. It features a common cathode configuration with four independent chips. Key electrical parameters include a maximum repetitive peak reverse voltage of 80 V and a continuous average rectified forward current of 25 mA. The device exhibits a typical forward voltage of 0.9 V at 5 mA and a maximum reverse leakage current of 0.1 µA at 70 V. It supports a surge forward current of 250 mA and has a maximum junction temperature rating of 150 °C.

Diode Arrays Feature Summary

• Integrates four independent switching diodes into a single compact surface-mount package for space-efficient circuit design.
• Features a common cathode configuration to simplify biasing and reduce component count in signal processing applications.
• Designed for high reliability with small plastic encapsulation suitable for automated surface mount assembly.

Diode Arrays Applications

• Signal rectification in low-current electronic circuits
• Clamping and protection stages in data lines
• Logic gate implementations using discrete diode arrays

Diode Arrays Procurement Notes

Verify the specific suffix T148 corresponds to the SOT-25 tape-and-reel packaging format required for your assembly line. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure input voltage ratings align with system requirements to prevent breakdown under transient conditions.

Diode Arrays Selection Notes

Select this component when a quad diode array is preferred over individual discrete units to save board space. The 80 V reverse voltage rating suits general-purpose signal applications rather than high-voltage power conversion. Consider the 25 mA current limit when designing load paths to ensure operation within safe thermal boundaries.

Diode Arrays Part Context

This part belongs to ROHM's standard switching diode portfolio, specifically designed for general-purpose signal handling. The FMN1 series utilizes a quad-chip architecture to provide multiple diode functions in a minimal footprint. It is classified as a standard-grade product intended for consumer and industrial electronics where moderate performance and reliability are sufficient.

Diode Arrays Replacement Considerations

FMN1T148 serves as a direct parameter-equivalent substitute for FMP1T148 in designs requiring diode array functionality instead of bridge rectification. Verify pinout compatibility between SOT-25 variants before swapping components in existing layouts.