The SANREX DF30DB80 is a single-phase bridge rectifier diode module rated for 30A continuous output current and 800V repetitive peak reverse voltage. Built in SANREX's compact DB-series footprint, it integrates four diodes in a full-wave bridge configuration within an isolated base module package, simplifying PCB and heatsink integration. The 800V blocking voltage provides substantial margin for line transients common in industrial 3-phase and single-phase input environments. This module is engineered for reliable, low-maintenance operation in continuous-duty rectification service.

The DF30DB80 is well suited for AC-DC front-end rectification in variable frequency drives, servo amplifiers, welding power supplies, UPS systems, and industrial DC bus converters. Its isolated copper base allows direct mounting to a heatsink without additional insulation hardware, reducing assembly complexity in high-density power conversion cabinets. The module's thermal characteristics support operation across a wide junction temperature range, making it appropriate for demanding industrial environments where ambient temperatures and load cycles vary significantly.

Quick Reference: DF30DB80

Key Features of the DF30DB80:

• 30A average output current rating suitable for mid-range industrial rectifier applications
• 800V repetitive peak reverse voltage (VRRM) with robust transient surge capability
• Full single-phase bridge topology — four diodes integrated in a single compact module
• Isolated insulated metal base for direct heatsink mounting without additional isolation pads
• Low forward voltage drop minimizes conduction losses and reduces heatsink thermal requirements
• DB-series package provides industry-standard mounting hole pattern for straightforward drop-in replacement

The DF30DB80 has been discontinued by SANREX with new factory production at a 99-week lead time, which effectively places it outside the supply window for most repair and maintenance timelines. Engineers maintaining legacy drives, rectifier assemblies, or power supplies originally designed around this module cannot wait two years for factory stock. Sourcing from a distributor with physical inventory is the only viable path to keeping equipment operational. Procuring spares now is strongly advisable to cover future failures before existing stock is depleted across the distribution channel.

ATI Accurate Technology in Palmetto, Florida stocks hard-to-find, obsolete, and long-lead-time power semiconductors including the DF30DB80. Orders received before 5PM EST ship same day. ATI serves maintenance engineers and procurement teams with competitive pricing, volume discounts, and responsive technical support. Contact us at 239-734-7566 or sales@igbts.us to confirm availability, request a quote, or discuss multi-unit pricing for your spares program.