BYY57 / BYY58
35A Silicon Power Rectifier Diode
Part no.
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
Pinout details
BYY57: 1 – cathode; 2 - anode
BYY58: 1 – anode; 2 - cathode
Typical application circuit
Six pulse
bridge
connection
~ ~ ~
3 x BYY57-1200
3 x BYY58-1200
+ -
1
2
Ordering information
Device Quantity per box Options
BYY57-75; …; BYY57-1500 500
BYY58-75; …; BYY58-1500 500
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 V
RRM
(in V) 400
Issue 4 – September 2006 1 www.zetex.com
© Zetex Semiconductors plc 2006