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====== 821BD - Dual Blocking Diode ======

{{http://support.e-plex.co/Product Photos/821BD.png?300}}

When an E-Plex power module such as an 805OPM is used to power a load and that load may also be powered from another power source, a potentially damaging back feed situation is possible. The 821BD can be used to prevent the back feed from causing any damage, whilst still allowing the E-Plex module to detect if the auxiliary supply is active.


===== Links =====

  * [[http://support.e-plex.co/Datasheets/821BD.pdf|Datasheet]]