MAX5939GESA Datasheet & Sourcing Guide

The MAX5939GESA is a specialized high-performance hot-swap controller designed for -48V telecommunications and networking backplanes Ntchip Digchip. Manufactured by Maxim Integrated (now Analog Devices), it is engineered to allow safe insertion and removal of circuit boards from a live power bus Octopart.

Technical Specifications & Insights

Voltage Range: Operates from -20V to -80V, with transient protection up to -100V Digchip Heisener.
Key Functionality: It features an electronic circuit breaker for fast-acting fault protection and a programmable current limit via an external sense resistor Perfectelectronicparts Enrgtech.
Variant Specifics: The "G" in the part number typically denotes an Auto-Retry fault-handling behavior, distinguishing it from variants that latch off after a fault Componentbuy.
Package: Housed in an 8-pin SOIC package (ESA suffix), suitable for space-constrained industrial environments Chipsfind Rxelectronics.

Market Trends & Sourcing

Demand Drivers: The rise of 5G infrastructure and Industry 5.0 automation is sustaining demand for robust -48V power management solutions Mordorintelligence Researchnester Gsacom.
Availability: While the specific 'GESA' variant has limited direct online listings, related variants like MAX5939BESA+ and MAX5939EESA+ are currently circulating in the B2B market with prices ranging from $1.23 to $6.94 per unit, depending on quantity and stock age Alibaba Alibaba.
Supply Landscape: Verified electronic component distributors in Shenzhen and Hong Kong remain the primary hubs for sourcing these parts, offering BOM services for hard-to-find PMIC components Alibaba Alibaba.