DYNEX DF45116, DF45114, DF45112, DF45110, DF45108 Datasheet
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DF451
DF451
Fast Recovery Diode
Replaces March 1999 version, DS4142-4.0 |
DS4143-5.0 January 2000 |
FEATURES
■Double Side Cooling
■High Surge Capability
■Low Recovery Charge
Applications
■Induction Heating
■A.C. Motor Drives
■Inverters And Choppers
■Welding
■High Frequency Rectification
■UPS
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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DF451 16 |
1600 |
VRSM = VRRM + 100V |
DF451 14 |
1400 |
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DF451 12 |
1200 |
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DF451 10 |
1000 |
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DF451 08 |
800 |
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DF451 06 |
600 |
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KEY PARAMETERS
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VRRM |
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1600V |
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IF(AV) |
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295A |
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IFSM |
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3500A |
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Qr |
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25μC |
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trr |
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1.22μs |
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Outline type code: M771.
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 |
295 |
A |
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F(AV) |
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I |
RMS value |
T |
case |
= 65oC |
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543 |
A |
F(RMS) |
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I |
Continuous (direct) forward current |
T |
case |
= 65oC |
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391 |
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 |
220 |
A |
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I |
RMS value |
T |
case |
= 65oC |
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348 |
A |
F(RMS) |
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I |
Continuous (direct) forward current |
T |
case |
= 65oC |
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285 |
A |
F |
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1/8
DF451
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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Max. |
Units |
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Double side cooled |
dc |
- |
0.07 |
oC/W |
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R |
Thermal resistance - junction to case |
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Anode dc |
- |
0.133 |
oC/W |
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th(j-c) |
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Single side cooled |
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Cathode dc |
- |
0.147 |
oC/W |
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Clamping force 5.0kN |
Double side |
- |
0.02 |
oC/W |
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Rth(c-h) |
Thermal resistance - case to heatsink |
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with mounting compound |
Single side |
- |
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 |
150 |
oC |
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Clamping force |
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4.5 |
5.5 |
kN |
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CHARACTERISTICS
Symbol |
Parameter |
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Conditions |
Typ. |
Max. |
Units |
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V |
Forward voltage |
At 600A peak, T |
case |
= 25oC |
- |
2.65 |
V |
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FM |
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I |
RRM |
Peak reverse current |
At V |
RRM |
, T = 125oC |
- |
100 |
mA |
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case |
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trr |
Reverse recovery time |
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1.22 |
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μs |
QRA1 |
Recovered charge (50% chord) |
IF = 500A, diRR/dt = -80A/μs |
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25 |
μC |
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IRM |
Reverse recovery current |
Tcase = 125oC, VR = 100V |
- |
40 |
A |
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K |
Soft factor |
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1.7 |
- |
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VTO |
Threshold voltage |
At Tvj = 125oC |
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- |
1.6 |
V |
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rT |
Slope resistance |
At Tvj = 125oC |
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1.5 |
mΩ |
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V |
Forward recovery voltage |
di/dt = 1000A/μs, T = 125oC |
- |
40 |
V |
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FRM |
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j |
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2/8
DF451
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
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3000 |
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2500 |
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- (A) |
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F |
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I |
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current,forward |
2000 |
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Instantaneous |
1500 |
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1000 |
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500 |
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2.0 |
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Measured under pulse conditions
Tj = 150˚C
Tj = 25˚C
3.0 4.0 5.0 6.0
Instantaneous forward voltage, VF - (V)
Fig.1 Maximum (limit) forward characteristics
3/8
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