The SANREX DF75LB160 is a single-phase bridge diode module constructed for high-voltage industrial rectification. Rated at 75 amperes continuous forward current and 1600V repetitive peak reverse voltage, this module integrates a full-wave bridge configuration into a compact, isolated baseplate package. It is engineered for reliable AC-to-DC conversion in demanding environments where thermal stability, low forward voltage drop, and robust reverse blocking capability are non-negotiable. With factory production discontinued, the DF75LB160 represents a critical procurement challenge for facilities that depend on it for ongoing operations or equipment repair.

The DF75LB160 sees widespread use in industrial motor drives, welding power supplies, uninterruptible power systems (UPS), crane and hoist controls, and DC bus charging circuits. Its 1600V voltage rating provides substantial margin in 690VAC three-phase systems after rectification transients are accounted for, making it well-suited for heavy industrial machinery operating on high-line distribution networks. Field engineers frequently specify this module in legacy variable-speed drive platforms, electrochemical process rectifiers, and traction power conversion systems where the combination of current capacity and high reverse voltage blocking is essential.

Quick Reference: DF75LB160

Key Features of the DF75LB160:

• 1600V repetitive peak reverse voltage (VRRM) providing robust margin in high-line AC input applications
• 75A average forward current (IFAV) supporting continuous duty rectification in industrial power stages
• Integrated single-phase full-wave bridge topology eliminates discrete component assembly and reduces PCB footprint
• Isolated baseplate construction simplifies heatsink mounting and meets electrical isolation requirements in multi-module configurations
• Low thermal resistance junction-to-case (Rth j-c) supports efficient heat extraction in forced-air and liquid-cooled heatsink assemblies
• Compatible with standard industry mounting hardware and heatsink form factors common to the SANREX DF-series platform

The DF75LB160 has been officially discontinued by SANREX, and new factory production carries a 99-week lead time — effectively making fresh inventory unavailable for urgent or near-term requirements. For maintenance teams managing aging drives, rectifier banks, or OEM equipment built around this module, surplus stock is the only practical path to keeping systems operational. Procurement professionals should treat any confirmed in-stock availability as a time-sensitive opportunity, as remaining new OEM units across the distribution channel will continue to diminish without replenishment from the manufacturer.

ATI Accurate Technology, based in Palmetto, Florida, specializes in exactly these scenarios — stocking obsolete, long-lead, and hard-to-find power semiconductors including SANREX diode modules. We ship same-day on orders received before 5PM EST and offer competitive volume pricing for MRO and project-quantity requirements. Contact our team directly at 239-734-7566 or sales@igbts.us to confirm current stock levels, request a quote, or discuss cross-reference options for the DF75LB160.