DF752
DF752
Fast Recovery Diode
Replaces March 1998 version, DS4212-3.4 |
DS4548 - 3.2 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 |
Conditions |
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Reverse Voltage |
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VRRM |
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V |
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DF752 25 |
2500 |
VRSM = VRRM + 100V |
DF752 24 |
2400 |
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DF752 22 |
2200 |
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DF752 20 |
2000 |
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Lower voltage grades available.
KEY PARAMETERS
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VRRM |
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2500V |
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IF(AV) |
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1050A |
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IFSM |
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12000A |
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Qr |
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1000μC |
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trr |
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6.0μs |
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Outline type code: M779b.
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 |
1050 |
A |
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F(AV) |
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I |
RMS value |
T |
case |
= 65oC |
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1660 |
A |
F(RMS) |
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I |
Continuous (direct) forward current |
T |
case |
= 65oC |
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1500 |
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 |
686 |
A |
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I |
RMS value |
T |
case |
= 65oC |
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1078 |
A |
F(RMS) |
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I |
Continuous (direct) forward current |
T |
case |
= 65oC |
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933 |
A |
F |
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1/7
DF752
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 |
12.0 |
kA |
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I2t |
I2t for fusing |
720 x 103 |
A2s |
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IFSM |
Surge (non-repetitive) forward current |
10ms half sine; with 50% VRRM, Tj = 150oC |
9.6 |
kA |
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I2t |
I2t for fusing |
460 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 |
- |
0.036 |
oC/W |
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R |
Thermal resistance - junction to case |
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Anode dc |
- |
0.069 |
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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0.076 |
oC/W |
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Clamping force 15kN |
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 |
On-state (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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13.5 |
16.5 |
kN |
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CHARACTERISTICS
Symbol |
Parameter |
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Conditions |
Typ. |
Max. |
Units |
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V |
Forward voltage |
At 2000A peak, T |
case |
= 25oC |
- |
1.8 |
V |
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FM |
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I |
RRM |
Peak reverse current |
At V |
RRM |
, T = 150oC |
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60 |
mA |
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case |
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trr |
Reverse recovery time |
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6.0 |
μs |
QRA1 |
Recovered charge (50% chord) |
IF = 1000A, diRR/dt = 100A/μs |
- |
1000 |
μC |
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IRM |
Reverse recovery current |
Tcase = 150oC, VR = 100V |
- |
330 |
A |
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K |
Soft factor |
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- |
- |
- |
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VTO |
Threshold voltage |
At Tvj = 150oC |
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0.9 |
V |
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rT |
Slope resistance |
At Tvj = 150oC |
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0.45 |
mΩ |
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V |
Forward recovery voltage |
di/dt = 1000A/μs, T = 125oC |
- |
- |
V |
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FRM |
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j |
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2/7
DF752
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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CURVES
F
Instantaneuos forward current I - (A)
5000
Measured under pulse 
conditions
4000
Tj = 25˚C
3000
Tj = 150˚C 
2000
1000
0
0 |
1.0 |
2.0 |
3.0 |
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Instantaneous forward voltage VF - (V) |
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Fig.1 Maximum (limit) forward characteristics
3/7
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