MAX5903ACEUT+T Sourcing Guide for Legacy Systems

The MAX5903ACEUT+T is a hot-swap controller IC developed by Analog Devices (Maxim Integrated) designed for high-voltage systems like 48V telecommunications and networking Digikey Digikey.

Product Overview

* Function: Designed for safe card insertion/removal in live backplanes, featuring integrated MOSFET and fixed current limiting Radiolocman Alibaba.

* Key Specs: Supports 9V to 72V input, 2A typical current limit, and is housed in a 6-pin SOT23 package Digikey Jakelectronics.

* Lifecycle Status: The product is officially Obsolete at major franchised distributors Octopart Digikey.

Market Trends & Availability

* Stock: Franchised channels (DigiKey, Mouser) report zero stock. Availability is now limited to the secondary market (independent brokers and platforms like Alibaba) Digikey Alibaba.

* Pricing: Secondary market pricing ranges from approximately $1.50 to $4.02 per unit, significantly higher than original bulk pricing due to its end-of-life status Jakelectronics.

* Trends: As networking hardware migrates to newer standards, demand for this specific part is primarily for maintenance and legacy system repairs. New designs typically utilize more modern alternatives from the MAX5900 series or LT series Ic-Components.

Detailed sourcing options and technical comparisons are provided in the attached file.