DYNEX DSF8045SK43, DSF8045SK42, DSF8045SK41, DSF8045SK40, DSF8045SK45 Datasheet
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DSF8045SK
DSF8045SK
Fast Recovery Diode
Replaces March 1998 version, DS4150-5.6 |
DS4146-6.0 January 2000 |
APPLICATIONS
■ Snubber Diode For GTO Applications
FEATURES
■Double side cooling
■High surge capability
■Low recovery charge
VOLTAGE RATINGS
Type Number |
Repetitive Peak |
Conditions |
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Reverse Voltage |
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VRRM |
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V |
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DSF8045SK45 |
4500 |
VRSM = VRRM + 100V |
DSF8045SK44 |
4400 |
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DSF8045SK43 |
4300 |
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DSF8045SK42 |
4200 |
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DSF8045SK41 |
4100 |
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DSF8045SK40 |
4000 |
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Lower voltage grades available.
KEY PARAMETERS
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VRRM |
4500V |
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IF(AV) |
430A |
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IFSM |
3500A |
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Qr |
440μC |
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trr |
3.07μs |
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Outline type code: K.
See Package Details for further information.
CURRENT RATINGS
Symbol |
Parameter |
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Conditions |
Max. |
Units |
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Double Side Cooled |
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I |
Mean forward current |
Half wave resistive load, T |
case |
= 65oC |
430 |
A |
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F(AV) |
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I |
RMS value |
T |
case |
= 65oC |
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680 |
A |
F(RMS) |
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I |
Continuous (direct) forward current |
T |
case |
= 65oC |
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600 |
A |
F |
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Single Side Cooled (Anode side) |
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IF(AV) |
Mean forward current |
Half wave resistive load, Tcase = 65oC |
285 |
A |
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RMS value |
T |
case |
= 65oC |
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445 |
A |
F(RMS) |
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I |
Continuous (direct) forward current |
T |
case |
= 65oC |
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380 |
A |
F |
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1/9
DSF8045SK
SURGE RATINGS
Symbol |
Parameter |
Conditions |
Max. |
Units |
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IFSM |
Surge (non-repetitive) forward current |
10ms half sine; with 0% VRRM, Tj = 150oC |
3.5 |
kA |
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I2t |
I2t for fusing |
61.25 x 103 |
A2s |
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IFSM |
Surge (non-repetitive) forward current |
10ms half sine; with 50% VRRM, Tj = 150oC |
2.8 |
kA |
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I2t |
I2t for fusing |
39.2 x 103 |
A2s |
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THERMAL AND MECHANICAL DATA
Symbol |
Parameter |
Conditions |
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Min. |
Max. |
Units |
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Double side cooled |
dc |
- |
0.048 |
oC/W |
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R |
Thermal resistance - junction to case |
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Anode dc |
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0.09 |
oC/W |
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th(j-c) |
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Single side cooled |
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Cathode dc |
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0.103 |
oC/W |
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Clamping force 8.0kN |
Double side |
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0.01 |
oC/W |
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Rth(c-h) |
Thermal resistance - case to heatsink |
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with mounting compound |
Single side |
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0.02 |
oC/W |
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Tvj |
Virtual junction temperature |
Forward (conducting) |
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150 |
oC |
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Tstg |
Storage temperature range |
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-55 |
175 |
oC |
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Clamping force |
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7.0 |
9.0 |
kN |
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2/9
DSF8045SK
CHARACTERISTICS
Symbol |
Parameter |
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Conditions |
Typ. |
Max. |
Units |
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V |
FM |
Forward voltage |
At 1000A peak, T |
case |
= 25oC |
- |
4.0 |
V |
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I |
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Peak reverse current |
At V |
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case |
= 150oC |
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50 |
mA |
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RRM |
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RRM |
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trr |
Reverse recovery time |
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3.07 |
μs |
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QRA1 |
Recovered charge (50% chord) |
IF = 1000A, diRR/dt = 100A/μs |
- |
440 |
μC |
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Reverse recovery current |
T |
case |
= 150oC, V |
R |
= 100V |
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240 |
A |
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RM |
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K |
Soft factor |
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V |
TO |
Threshold voltage |
At T |
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= 150oC |
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- |
1.7 |
V |
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vj |
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T |
Slope resistance |
At T |
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= 150oC |
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2.1 |
mΩ |
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vj |
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V |
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Forward recovery voltage |
di/dt = 1000A/μs, T = 125oC |
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300 |
V |
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FRM |
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j |
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DEFINITION OF K FACTOR AND QRA1
QRA1 = 0.5x IRR(t1 + t2)
dIR/dt |
t2 |
k = t1/t2 |
t1 |
τ |
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0.5x IRR |
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IRR |
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3/9
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