© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/19/16
Ultrafast Recovery Rectifier
SP3051
DUR2030CT, 2x 10A, 300V, TO-220AB, Common Cathode
DUR2030CT
Features
Applications
• Ultra-fast switching
• Low reverse leakage
current
• High surge current
capability
• Low forward voltage drop
• Common Cathode
configuration in TO-220AB
package
• Pb-free E3 means 2nd
level interconnect is
Pb-free and the terminal
finish material is tin(Sn)
(IPC/JEDEC J-STD-
609A.01)
• Output rectifiers in switch
mode power supplies
(SMPS) and DC to DC
converters
• Free-wheeling diode or
boost diode in converters
and motor control circuits
• Anti-parallel diode for
high frequency switching
devices such as IGBT
• Uninterruptible Power
Supplies (UPS)
• Inductive heating and
melting
• Ultrasonic cleaners and
welders
Maximum Ratings
Characteristics Symbol Conditions Max. Unit
Peak Inverse Voltage VRWM - 300 V
Average Forward Current IF(AV)
50% duty cycle @TC =100 °C,
rectangular wave form
10 (Per Leg) A
20 (Total Device)
Peak One Cycle Non-
Repetitive Surge Current ( Per Leg) IFSM 8.3 ms, half sine pulse 125 A
Circuit Diagram
Description
Characteristics Symbol Conditions Max. Unit
Forward Voltage Drop (Per Leg)1 VF@10A, Pulse, TJ = 25 °C 1. 3 V
Reverse Current1IR1 @VR = Rated VR , TJ = 25 °C 30 μA
IR2 @VR = Rated VR , TJ = 125 °C 500
Reverse Recovery Time trr1 IF=500mA, IR=1A,and Irm=250mA 45 ns
Electrical Characteristics
Footnote 1: Pulse Width < 300μs, Duty Cycle <2%
Littelfuse DUR series Ultrafast Recovery Rectifier is
designed to meet the general requirements of commercial
applications by providing low Trr, high-temperature, low-
leakage and low forward voltage drop products. It is suit-
able for output rectifier, free-wheeling or boost diode in
high-frequency power switching application such as switch
mode power supply and DC-DC converters.
Base Common
Cathode
AnodeAnode
123
2
RoHS
Pb
e3
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/19/16
Ultrafast Recovery Rectifier
DUR2030CT, 2x 10A, 300V, TO-220AB, Common Cathode
Figure 3: Typical Junction Capacitance
Figure 2: Typical Reverse CharacteristicsFigure 1: Typical Forward Characteristics
Characteristics Symbol Conditions Specification Unit
Junction Temperature TJ- -55 to +150 °C
Storage Temperature Tstg - -55 to +150 °C
Typical Thermal
Resistance Junction to Case RθJC DC operation 5.0 °C/W
Approximate Weight wt - 2 g
Case Style -TO-220AB - -
Thermal-Mechanical Specifications
Part Numbering and Marking System
DUR = Device Type
20 = Forward Current (20A)
30 = Reverse Voltage (300V)
CT = Configuration
LF = Littelfuse
YY = Year
WW = Week
L = Lot Number
DUR2030CT
LF xxxxx
*xxxxx is YYWWL
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/19/16
Ultrafast Recovery Rectifier
SP3051
DUR2030CT, 2x 10A, 300V, TO-220AB, Common Cathode
Packing Options
Part Number Marking Packing Mode M.O.Q
DURF1060 DURF1060 50pcs / Tube 1000
Dimensions-Package TO-220AB
Tube Specification TO-220AB
32mm
7mm
530mm
Symbol Millimeters
Min Max
A 3.56 4.83
A1 0.51 1.40
A2 2.03 2.92
b 0.38 1.02
b1 1.14 1.78
c 0.31* 0.61
D 14.22 16.51
D1 8.38 9.15*
E 9.65 10.67
e 2.54 -
e1 4.98* -
H1 5.84 6.86
L 12.70 14.73
L1 - 6.35
øP 3.53 4.09
Q 2.54 3.43
Footnote *: The spec. does not comply with JEDEC spec.
