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Document Number 2442
Issue 1
SML50SUZ03B
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is
believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in
its use. Semelab encourages customers to verify that datasheets are current before placing orders.
Ultrafast Recovery Diode
300 Volt, 50Amp
TECHNOLOGY
The planar passivated and standard ultrafast recovery
diode features a triple charge control action utilising
Semelab’s Graded Buffer Zone technology combined with
low emitter efficiency and local lifetime control techniques.
BENEFITS
Very fast recovery for low switching losses
Ultra soft recovery with low EMI generation
High dynamic ruggedness under all conditions
Low temperature dependency
Low on-state losses with positive temperature coefficient
Stable blocking voltage and low leakage current
Avalanche rated for high reliability circuit operation
APPLICATIONS
Freewheeling Diode for IGBTs and MOSFETs
Uninterruptible Power Supplies UPS
Switch Mode Power Supplies SMPS
Inverse and Clamping Diode
Snubber Diode
Fast Switching Rectification
VRRM
Peak Repetitive Reverse Voltage
VR
DC Reverse Blocking Voltage
IFAV
Average Forward Current @Tc = 85°C
IFSM(surge)
Repetitive Forward Current
IFS(surge)
Non-Repetitive Forward Current
PD
Power Dissipation @Tc = 85°C
WAVL
Avalanche Energy (L = 40mH)
TJ ,TSTG
Operating & Storage Junction Temperature
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
300V
50A
125A
500A
80W
30mJ
-55 to 150°C
Back of Case
Cathode
50SUZ03B
SML
12
1 - Cathode
2 - Anode
See Package outline for mechanical data and more details
TO-247 PACKAGE
Key Parameters
VR
(max)
300V
VF
(typ)
1.45V
IF
(max)
50A
trr
(max)
45nS