BYY57 / BYY58
35A Silicon Power Rectifier Diode
Part no.
Issue 4 – September 2006 1 www.zetex.com
© Zetex Semiconductors plc 2006
Description
The BYY57/58 are hermetically sealed 35A-
diodes, which are available in different reverse
voltage classes up to 1500V.
The diodes can be delivered with limited forward
voltage and reverse current differences for
parallel connecting in rectifier stacks and back-
off-diodes
Features
Forward current 35A
Reverse voltage 75V – 1500V
Hermetic press-fit package
Available in different modifications of the
package
Applications
Power supplies
Rectifier diode in car generators
Rectifier bridges/stacks
Back-off-diodes
BYY57: 1 – cathode; 2 - anode
BYY58: 1 – anode; 2 - cathode
Typical application circuit
Six pulse
bridge
connection
Ordering information
The package quantities for the different package
modifications are included in
“PressFitPackageModifications.pdf”
Device marking
Devices are identified by type. Colour of marking: BYY57- black, BYY58 – red
422........................................……. date code 422 = 2004 week 22
ZETEX
BYY57………………………………... diode type
400………………………………….. repetitive peak reverse voltage VRRM (in V) 400