DSEI 2x121
Fast Recovery
Epitaxial Diode (FRED)
VRSM
VRRM
V
V
200
200
Type
AC-1
IK-10
LN-9
VX-18
IFAVM = 2x123 A
VRRM = 200 V
= 35 ns
trr
DSEI 2x 121-02P
Symbol
Conditions
IFRMS
IFAVM ①
IFRM
TVJ = TVJM
TC = 70°C; rectangular; d = 0.5
tP < 10 µs; rep. rating; pulse width limited by TVJM
IFSM
TVJ = 45°C; t = 10 ms (50 Hz), sine
Maximum Ratings (per diode)
TC = 25°C
VISOL
50/60 Hz, RMS
IISOL ≤ 1 mA
Md
Mounting torque (M4)
t = 1 min
t=1s
Conditions
IR
TVJ = 25°C VR = VRRM
TVJ = 25°C VR = 0.8 • VRRM
TVJ = 125°C VR = 0.8 • VRRM
A
-40...+150
150
-40...+150
°C
°C
°C
250
W
2500
3000
V~
V~
1.5 - 2.0
14 - 18
Nm
lb.in.
20
g
t
Characteristic Values (per diode)
typ.
max.
TVJ = 150°C
TVJ = 25°C
0.89
No
RthJC
RthCK
fo
Symbol
VT0
rT
1200
r
Weight
IF = 120 A;
A
A
A
ne
Ptot
150
123
600
w
TVJ
TVJM
Tstg
VF
de
si
gn
D5
For power-loss calculations only
TVJ = TVJM
1
0.5
20
mA
mA
mA
0.95
1.10
V
V
0.7
2.1
V
mΩ
0.7
K/W
K/W
0.1
trr
IF = 1 A; -di/dt = 400 A/µs
VR = 30 V; TVJ = 25°C
35
50
ns
IRM
VR = 100 V; IF = 100 A; -diF/dt = 200 A/µs
L ≤ 0.05 µH; TVJ = 100°C
12
15
A
dS
dA
a
Creeping distance on surface
Creeping distance in air
Allowable acceleration
min. 11.2
min. 11.2
max. 50
mm
mm
m/s²
Features
•
•
•
•
•
•
2 independent FRED in 1 package
Isolation voltage 3000 V~
Planar passivated chips
Leads suitable for PC board soldering
Very short recovery time
Soft recovery behaviour
Applications
• Antiparallel diode for high frequency
switching devices
• Anti saturation diode
• Snubber diode
• Free wheeling diode in converters
and motor control circuits
• Rectifiers in switch mode power
supplies (SMPS)
• Inductive heating and melting
• Uninterruptible power supplies (UPS)
• Ultrasonic cleaners and welders
Advantages
• Easy to mount with two screws
• Space and weight savings
• Improved temperature and power
cycling capability
• Low noise switching
• Small and light weight
Recommended replacement:
DSEI 2x161-02P/DSEI 2x121-02A
① IFAVM rating includes reverse blocking losses at TVJM, VR = 0.8 VRRM, duty cycle d = 0.5
Data according to IEC 60747
IXYS reserves the right to change limits, test conditions and dimensions
© 2007 IXYS All rights reserved
20070731a
1-2
DSEI 2x 121-02P
IF
200
A
175
2.0
150
Qr 1.5
60
A
TVJ= 100°C
VR = 100V
μC
TVJ= 100°C
VR = 100V
50
IRM
IF=240A
IF=120A
IF= 60A
40
125
IF=240A
IF=120A
IF= 60A
1.0
100
TVJ=150°C
75
30
20
TVJ=100°C
0.5
50
TVJ=25°C
10
25
0.5
1.0 V
VF
0.0
10
1.5
Fig. 1 Forward current IF versus VF
0
100
A/μs 1000
-diF/dt
Fig. 2 Typ. reverse recovery charge Qr
versus -diF/dt
2.0
0
200
150
Kf
VFR
trr 125
IF=240A
IF=120A
IF= 60A
100
0.5
75
50
50
100
TVJ
°C 150
Fig. 4 Dynamic parameters Qr, IRM
versus TVJ
400
tfr
2.0
6
1.5
4
1.0
2
0.5
0
200
600 800 A/μs
-diF/dt
Fig. 5 Typ. recovery time trr
versus -diF/dt
0
0.0
100 200 300 400 500 A/μs
diF/dt
Fig. 6 Typ. peak forward voltage
VFR and tfr versus diF/dt
t
1
K/W
0
fo
0
r
0.0
VFR
tfr
ne
1.0
μs
2.5
8
w
IRM
3.0
TVJ= 100°C
IF = 120A
V
10
Qr
D5
600 A/μs
800 1000
-diF/dt
Fig. 3 Typ. peak reverse current IRM
versus -diF/dt
12
TVJ= 100°C
VR = 100V
ns
1.5
400
de
si
gn
0
0.0
No
Dimensions in mm (1mm = 0.0394“)
D=0.5
0.1
ZthJC
0.2
0.1
0.05
0.02
0.01
0.01
Single Pulse
0.001
0.001
0.01
0.1
1s
10
t
Fig. 7 Transient thermal impedance junction to case at various duty cycles
20070731a
© 2007 IXYS All rights reserved
2-2
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