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Fast recovery diodes

Fast recovery diodes

Diodes can be subdivided into two main classes: Rectifier diodes (standard recovery) and fast diodes. Rectifier diodes are generally used for conversion of AC (alternating current) to DC (direct current). While optimized for low conduction losses, Rectifier diodes withstand only moderate dynamic stress in transition from conducting to the blocking state.


Fast diodes, on the other hand, are companion devices to switches in DC to AC conversion. Every switch (GTO, IGCT or IGBT) requires a complementary diode (e.g. for "free-wheeling" reactive power) in order to enable operation of the DC-AC conversion system with inductive loads.

Fast diodes are optimized to accept high dynamic stress (fast transition from conducting to blocking state). However, they generally have higher conduction losses than rectifier diodes. For every switch family (GTO, IGCT and IGBT), we offer fast diodes that are optimized for the switch application.

For downloading and printing of data sheets in pdf format, click on the part numbers. 


  

GTO free-wheeling 
Part number
VRRM (V)IFAVM (A)IFSM (kA)Qrr (µC) VDC (V)Package* (mm)
5SDF 06D2504 250061510.0400 -58.5/34
5SDF 06T2504 250061510.0400 -58.5/34
5SDF 12F2505 2500125619.0700 -75/47
5SDF 12T2505 2500125619.0700 -74.5/47
5SDF 04D4504 45003616.0400 -58.5/34
5SDF 04T4504 45003616.0400 -58.5/34
5SDF 08F4505 450076715.0700 -75/47
5SDF 08T4505 450076715.0700 -74.5/47
5SDF 13H45014500120025.0 -280094/63
5SDF 10H60046000110018.0 -380094/63

 *Note: maximum diameter / pole-piece diameter
 

Snubber
Part number
VRRM (V)IFAVM (A)IFSM (kA)VDC (V)Package* (mm)
5SDF 05D250125004908.5110060/34
5SDF 03D450145003205.0240060/34
5SDF 07H4501450090016.0240094/63
5SDF 02D600260002503.6300060/34

*Note: maximum diameter / pole-piece diameter

 

IGBT diodes
Part number
VRRM (V) IFAVM (A)IFSM (kA) Qrr(µC)  Package* (mm)
5SDF 20L4521 4500 1950 38 5300120/85
5SDF 28L4521 4500 2620 48 10100120/85

*Note: maximum diameter / pole-piece diameter
 

Diodes for IGCT Applications
Part number
VRRM (V)IFAVM (A)IFSM (kA)VDC (V)Package* (mm)Plecs model 
5SDF 03D450245002755.0280060/34
5SDF 05F4502450043516.0280075/47
5SDF 10H45034500110020.0280094/63
5SDF 20L452045001950382800120/85 XML
5SDF 28L452045002620482800120/85 XML
5SDF 02D600455001753.0330060/34
5SDF 04F6004550038010.0330075/47
5SDF 08H6005550058518.0330094/63


*Note: maximum diameter / pole-piece diameter