SKD50/04A3-SEMIKRON
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  • SKD50/04A3-SEMIKRON
  • SKD50/04A3
  • SEMIKRON
  • Long Lead TIme
  • Semikron IGBT Module
  • Data Sheet for SKD50/04A3
  • Description

    The SEMIKRON SKD50/04A3 is a three-phase diode bridge rectifier module delivering 50A average output current with a 400V repetitive peak reverse voltage rating. Built in SEMIKRON's industry-standard SKD package, this module integrates six rectifier diodes in a fully isolated base configuration, simplifying heatsink mounting and system integration. It is engineered for continuous duty in demanding industrial environments where reliable AC-to-DC rectification, low forward voltage drop, and long operational life are critical design requirements for front-end power conversion stages.

    The SKD50/04A3 serves as a front-end rectifier in variable-speed AC motor drives, servo amplifiers, DC bus power supplies, welding equipment, and industrial UPS systems. Its robust diode construction handles the repetitive surge currents and thermal cycling inherent in drive applications. The fully isolated baseplate allows direct mounting to a common heatsink shared with inverter modules, making it a natural companion to IGBT modules in compact drive assemblies. It is also widely deployed in elevator controls, crane drives, and printing machinery power stages.

    Quick Reference: SKD50/04A3

    Part Number SKD50/04A3
    Manufacturer SEMIKRON
    Type Three-Phase Diode Bridge Module
    Average Output Current (ID(AV)) 50A
    Repetitive Peak Reverse Voltage (VRRM) 400V
    Availability / Lead Time Long Lead Time — Contact ATI for Status
    Condition New OEM

    Key Features of the SKD50/04A3:

    • 50A average rectified output current rated for continuous industrial duty cycles
    • 400V repetitive peak reverse voltage (VRRM) suitable for 230/400V three-phase mains input
    • Fully isolated copper baseplate enables shared heatsink mounting with inverter-side IGBT modules
    • Low forward voltage drop across all six diodes minimizes conduction losses and reduces thermal load on the heatsink
    • SKD package footprint is mechanically interchangeable with other SEMIKRON SKD-series bridge modules for straightforward field replacement
    • Designed to withstand repetitive surge currents (ITSM) characteristic of drive startup and dynamic braking events

    The SKD50/04A3 carries a 35-week factory lead time from SEMIKRON under current production scheduling, placing it firmly in the long-lead-time category that can stall repair timelines and new builds alike. Procurement teams supporting aging drives or legacy power conversion equipment should anticipate this gap and plan safety stock accordingly. ATI Accurate Technology actively sources discontinued, allocated, and extended-lead SEMIKRON modules through authorized and vetted distribution channels, giving maintenance and procurement professionals an alternative path when factory lead times are not acceptable.

    ATI Accurate Technology is headquartered in Palmetto, Florida and ships same-day on orders placed before 5PM EST. We stock hard-to-find, long-lead-time, and obsolete power semiconductors including IGBT modules, thyristors, diodes, and rectifier bridges. Volume pricing is available for MRO and OEM quantities. Call us at 239-734-7566 or email sales@igbts.us to check current availability on the SKD50/04A3 and discuss your project requirements.

NEED 25PCS OR MORE ... CALL FOR SPECIAL PRICING 239-734-7566
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** 1 Year Warranty on All Products **
In Stock: 3
  • 3
  • 27 (Can ship in We can ship in 7-10 Days)
  • 35 Weeks
Regular price $153.00 USD
Regular price Sale price $153.00 USD
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