DSF8025SE
DSF8025SE
Fast Recovery Diode
Advance Information
Replaces March 1998 version, DS4146-4.4 DS4146-5.0 January 2000
APPLICATIONS
■ Induction Heating
■ A.C. Motor Drives
■ Inverters And Choppers
■ Welding
■ High Frequency Rectification
■ UPS
FEATURES
■ Double side cooling
■ High surge capability
■ Low recovery charge
VOLTAGE RATINGS
Type Number Repetitive Peak
Reverse Voltage
V
RRM
V
DSF8025SE25
DSF8025SE24
DSF8025SE23
DSF8025SE22
DSF8025SE21
DSF8025SE20
2500
2400
2300
2200
2100
2000
Lower voltage grades available.
CURRENT RATINGS
Conditions
= V
V
RSM
RRM
+ 100V
KEY PARAMETERS
V
RRM
I
F(AV)
I
FSM
Q
r
t
rr
Outline type code: E
See Package Details for further information.
2500V
650A
7500A
540µC
5.0µs
Symbol Parameter Conditions
Double Side Cooled
I
F(AV)
I
F(RMS)
I
Mean forward current
RMS value
F
Continuous (direct) forward current
Half wave resistive load, T
= 65oC 1020 A
T
case
T
= 65oC 785 A
case
Single Side Cooled (Anode side)
I
F(AV)
I
F(RMS)
I
F
Mean forward current
RMS value
Continuous (direct) forward current
Half wave resistive load, T
T
= 65oC 604 A
case
T
= 65oC 465 A
case
= 65oC 650 A
case
= 65oC 385 A
case
UnitsMax.
1/8
DSF8025SE
SURGE RATINGS
ParameterSymbol
FSM
FSM
Surge (non-repetitive) forward currentI
Surge (non-repetitive) forward currentI
THERMAL AND MECHANICAL DATA
Symbol Parameter
R
R
th(j-c)
th(c-h)
Thermal resistance - junction to case
Thermal resistance - case to heatsink
Conditions
10ms half sine; with 0% V
10ms half sine; with 50% V
Conditions Max. Units
Double side cooled
Single side cooled
Clamping force 8.0kN
with mounting compound
= 150oC
RRM, Tj
RRM, Tj
dc
Cathode dc
Double side
Single side
= 150oC
Max. Units
7.5 kA
281 x 10
3
6.0 kA
180 x 10
3
Min.
- 0.047
- 0.094oC/W
0.018
-
- 0.036
A2sI2t for fusingI2t
A2sI2t for fusingI2t
o
C/W
o
C/W- 0.094Anode dc
o
C/W
o
C/W
T
T
stg
Virtual junction temperature
vj
Storage temperature range -55 175
On-state (conducting) - 150
CHARACTERISTICS
Symbol Typ. Units
V
FM
I
RRM
t
rr
Q
RA1
I
RM
Forward voltage
Peak reverse current
Reverse recovery time
Recovered charge (50% chord)
Reverse recovery current
K Soft factor
V
TO
Threshold voltage
Parameter
Conditions Max.
At 1000A peak, T
At V
, T
RRM
= 150oC-mA
case
= 25oC - 2.3 V
case
50
- 5.0
= 1000A, diRR/dt = 100A/µs
I
F
T
= 150oC, VR = 100V
case
- 540 µC
- 235 A
1.8 - -
At Tvj = 150oC - 1.48 V
o
o
kN9.07.0Clamping force-
µs
C
C
2/8
r
T
V
FRM
Slope resistance
Forward recovery voltage di/dt = 1000A/µs, Tj = 125oC70-V
At T
= 150oC - 0.8 mΩ
vj
DSF8025SE
DEFINITION OF K FACTOR AND Q
Q
= 0.5x IRR(t1 + t2)
RA1
dIR/dt
0.5x I
t
1
RR
I
RR
k = t
t
2
1/t2
CURVES
4000
3500
Measured under pulse conditions
RA1
τ
3000
- (A)
2500
F
2000
1500
Instantaneous forward current I
Tj = 150˚C
Tj = 25˚C
1000
500
0 1.0 2.0 3.0 4.0
Instantaneous forward voltage V
- (V)
F
Fig. 1 Maximum (limit) forward characteristics
3/8