Datasheet

SiC Schottky Diode
LFUSCD20120B, 1200 V, 20 A, TO-247 3-lead
LFUSCD20120B
RoHS
Pb
Description
The LFUSCD series of silicon carbide (SiC) Schottky diodes has near-zero recovery current, high surge capability,
and a maximum operating junction temperature of 175 °C.
The diode series is ideal for applications where improvements in efficiency, reliability, and thermal management
are desired.
Features
• E
xtremely fast,
temperature-independent
switching behavior
• P
ositive temperature
coefficient for safe
operation and ease of
paralleling
• D
ramatically reduced
switching losses
compared to Si bipolar
diodes
• 1
75 °C maximum
operating junction
temperature
• Enhanced surge capability
Circuit Diagram
Applications
4
Case
4
1
2
• B
oost diodes in power
factor correction
• U
ninterruptible power
supplies
• S
witch-mode power
supplies
• Solar inverters
• Industrial motor drives
3
1
2
3
Maximum Ratings
Characteristics
DC Blocking Voltage
Repetitive Peak Reverse Voltage, Tj
= 25 °C
Symbol
Conditions
Max. (Leg / Device)
Unit
VR
-
1200
V
1200
V
TC = 142°C
10 / 20
A
TC = 25 °C, 8.3 ms, half sine pulse
80 / 160
A
TC = 25 °C
136 / 272
TC = 142 °C
30 / 60
VRRM
Maximum DC Forward Current
IF
Non-Repetitive Forward Surge
Current
IFSM
Power Dissipation
PTot
Maximum Operating Junction
Temperature
W
TJ,MAX
175
°C
Storage Temperature
TSTG
-55 to 175
°C
Soldering Temperatures,
Wavesoldering Only Allowed at
Leads
Tsold
260
°C
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/19/16
1.6 mm from case for 10s
SiC Schottky Diode
LFUSCD20120B, 120 V, 20 A, TO-247 3-lead
Electrical Characteristics
Characteristics
Symbol
Forward Voltage
VF
Reverse Current
IR
Total Capacitive Charge
QC
Total Capacitance
Value (Leg / Device)
Conditions
Min.
Typ.
Max.
IF = 20 A, TJ = 25 °C
-
1.5
1.7
IF = 20 A, TJ = 175 °C
-
2.5
3
VR = 1200 V , TJ = 25 °C
-
30 / 60
250 / 500
VR = 1200 V , TJ = 175 °C
-
60 / 120
800 / 1600
VR = 600 V, IF = 20 A, di/dt = 250 A/µs
-
35 / 70
-
VR = 1 V, f =1 MHz
-
500 / 1000
-
VR = 300 V, f = 1 MHz
-
50 / 100
-
VR = 600 V, f = 1 MHz
-
36 / 72
-
C
Unit
V
μA
nC
pF
Footnote: TJ = +25 °C unless otherwise specified
Thermal Characteristics
Characteristics
Thermal Resistance
Symbol
Conditions
RθJC
-
Figure 1: Typical Reverse Characteristics
Value ( Leg / Device )
Typ.
Max.
-
-
1.1 / 0.55
Unit
°C/W
Figure 2: Typical Foward Characteristics
1.E-04
10-4
20
10-6
1.E-06
10-7
1.E-07
- 55 °C
25 °C
10-8
1.E-08
Forward Current, IF (A)
Reverse Current, IR (A)
1.E-05
10-5
10-9
1.E-09
500
Min.
15
10
- 55 °C
25 °C
100 °C
5
150 °C
175 °C
600
700 800 900 1000 1100 1200
Reverse Voltage, VR (V)
175 °C
0
0
1
2
3
4
Forward Voltage, VF (V)
5
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/19/16
SiC Schottky Diode
LFUSCD20120B, 1200 V, 20 A, TO-247 3-lead
Figure 3: Power Disipation
Figure 4: D
iode Foward Current
120
100
50
80
60
40
20
0
25
50
75
100
TC (±C)
125
150
0
175
Figure 5: Capacitance vs. Reverse Voltage
50
75
100
TC (±C)
125
150
175
1
(±C/W)
600
Thermal Impedance, Z
θJC
500
400
300
200
100
0
25
Figure 6: Transient Thermal Impedance
700
Capacitance, C (pF)
D = 0.1
D = 0.3
D = 0.5
D = 0.7
D = 1.0
100
Forward Current,IF (A)
Power Disspiation, PTot (W)
150
0.1
1
10
100
Reverse Voltage, VR (V)
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/19/16
1000
D = 0.5
0.1
0.01
1.E-05
D = 0.3
D = 0.1
D = 0.05
D = 0.02
Single Pulse
1.E-04
1.E-03
Time , t (s)
1.E-02
1.E-01
SiC Schottky Diode
LFUSCD20120B, 120 V, 20 A, TO-247 3-lead
Part Marking System
LFUSCD
20120B
PYWXX ZZZ
LFU
SCD
20
120
B
PYWXX
ZZZ
Packing Options
= Littelfuse
= SiC diode
= Current Rating (20A)
= Voltage Rating (1200V)
= TO-247-3 package
= Lot Number
= Date Code
Part Number
Marking
Packing Mode
M.O.Q
LFUSCD20120B
LFUSCD20120B
30 pcs / Tube
240
Dimensions-Package TO-247 3-lead
Symbol
A
A1
A2
b
b2
b4
C
D
D1
D2
E
E1
E2
E2/2
e
L
L1
øP
øP1
Q
S
Inches
Min
0.193
0.900
0.073
0.042
0.075
0.113
0.022
0.820
0.684
0.042
0.621
0.547
0.135
0.081
0.789
0.164
0.140
0.278
0.216
0.238
Nom
0.198
0.950
0.078
0.047
0.080
0.118
0.024
0.825
0.690
0.047
0.626
0.552
0.146
0.088
0.215 BSC
0.794
0.170
0.142
0.283
0.221
0.243
Max
0.203
0.100
0.083
0.052
0.094
0.133
0.027
0.830
0.696
0.052
0.631
0.557
0.157
0.095
0.799
0.176
0.144
0.288
0.226
0.248
Mounting
M3/M3.5
1Nm
Torque
Screw
8.8 lbf-in
Packing Specification ( Tube for TO-247 3-lead )
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/19/16
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