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Changeover to new MOSFETs and new pc-board DK-DCDRV
Over the time there had been some changes at the power units. Important is to make sure, that the dierent ver-
sions are not mixed up (do not combine “old“ with “new“).
• Since september 2006 the MOSFET (711.2606.0) was replaced by a new type (711.2608.0). In this context the
pc-boards DK-DCDRV/DK-S3DRV were replaced by DCDR-01 and DCDR-02.
• Since December 2007 additional diodes had been added to the pc-boards (change from DCDR0x to DCDR1x)
• Since April 2008 a new driver circuit was used (change from DCDR1x to DCDR2x)
type part. no. designation picture
„old“ MOSFET 711.2606.0 E26NA90
„new“ MOSFET 711.2608.0 IXFN26N90
The new pc-boards DCDR-01 and DCDR-02 can be easily distinguished from the „old“ pc-board DK-DCDRV. At
the „new“ pc-boards the gate resistors have a small toroidal core:
The main dierence between the DCDR0x and DCDR1x is an additional diode:
DCDR1x
with additional diode
DCDR0x
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