Parameter Max. Units
VRD.C. Reverse Voltage 600 V
IF @ TC = 100°C Continuous Forward Current 30
IFSM @ TC = 25°C Single Pulse Forward Current 150
PD @ TC = 25°C Maximum Power Dissipation 63 W
TJOperating Junction and -55 to +150 °C
TSTG Storage Temperature Range
• Reduced RFI and EMI
• Reduced Snubbing
• Extensive Characterization of Recovery Parameters
• Hermetic
• Electrically Isolated
• Ceramic Eyelets
Features
Description
HEXFREDTM diodes are optimized to reduce losses and
EMI/RFI in high frequency power conditioning systems.
An extensive characterization of the recovery behavior
for different values of current, temperature and di/dt
simplifies the calculations of losses in the operating
conditions. The softness of the recovery eliminates the
need for a snubber in most applications. These devices
are ideally suited for power converters, motors drives and
other applications where switching losses are significant
portion of the total losses.
Ultrafast, Soft Recovery Diode
HEXFREDTM
VR = 600V
VF = 1.56V
Qrr = 270nC
di(rec)M/dt = 345A/µs
A
Absolute Maximum Ratings (per Leg)
Note: D.C. = 50% rect. wave
1/2 sine wave, 60 Hz , P.W. = 8.33 ms
Thermal - Mechanical Characteristics
Parameter Typ. Max. Units
RθJC Junction-to-Case, Single Leg Conducting — 2.0
Weight 9.3 — g
°C/W
HFA35HB60C
PRELIMINARY
PD-20378A
(ISOLATED BASE)
8/20/98
TO-254AA
www.irf.com 1
ANODE COMMON ANODE
CATHODE
HFA35HB60C
2 www.irf.com
Parameter Min. Typ. Max. Units Test Conditions
VBR Cathode Anode Breakdown Voltage 600 — — V IR = 250µA
VFM Max Forward Voltage — — 1.56 IF = 15A
— — 1.92 V IF = 30A See Fig. 1
— — 1.51 IF = 15A, TJ = 125°C
IRM Max Reverse Leakage Current — — 10 µA VR = VR Rated
— — 1.0 mA TJ = 125°C, VR = 480V
CTJunction Capacitance — 24 36 pF VR = 200V See Fig. 3
LSSeries Inductance — 8.7 — nH Measured from center of bond pad to
end of anode bonding wire
Electrical Characteristics (per Leg) @ TJ = 25°C (unless otherwise specified)
Dynamic Recovery Characteristics (per Leg) @ TJ = 25°C (unless otherwise specified)
A/µs
nC
A
See Fig. 2
Parameter Min. Typ. Max. Units Test Conditions
trr1 Reverse Recovery Time — 54 88 ns TJ = 25°C See Fig.
trr2 — 94 140 TJ = 125°C 5 IF = 15A
IRRM1 Peak Recovery Current — 5.6 7.8 TJ = 25°C See Fig.
IRRM2 — 7.8 11.7 TJ = 125°C 6 VR = 200V
Qrr1 Reverse Recovery Charge — 180 270 TJ = 25°C See Fig.
Qrr2 — 435 650 TJ = 125°C 7 dif/dt = 200A/µs
di(rec)M/dt1 Peak Rate of Fall of Recovery Current — 300 345 TJ = 25°C See Fig.
di(rec)M/dt2 During tb— 190 285 TJ = 125°C 8
Case Outline and Dimensions — TO-254AA
3.78 ( .149 )
3.53 ( .139 )
-A-
13.84 ( .545 )
13.59 ( .535 ) 6.60 ( .260 )
6.32 ( .249 )
20.32 ( .800 )
20.07 ( .790 ) 13.84 ( .545 )
13.59 ( .535 )
-C-
1.14 ( .045 )
0.89 ( .035 ) 3.81 ( .150 )
1.27 ( .050 )
1.02 ( .040 )
-B- .12 ( .005 )
3X
2X
3.81 ( .150 )
1 2 3
17.40 ( .685 )
16.89 ( .665 )
31.40 ( 1.235 )
30.39 ( 1.199 )
NOTES:
1. D IME N S ION ING & TO LER AN C ING PE R A N S I Y14.5M, 1982.
2 . ALL DIMENSIONS AR E SHOW N IN MILLIMETERS ( INCHES ) .
.5 0 ( . 020 ) M C A M B
.2 5 ( . 010 ) M C
LEGEND
1 - COLLECTO R
2 - EMITT ER
3 - GA T E
W
Conforms to JEDEC Outline TO-254AA
Dimensions in Millimeters and ( Inches )
LEGEND
1- ANODE
2- COMMON CATHODE
3- ANODE
LEGEND
1- ANODE
2- COMMON CATHODE
3- ANODE
1 2 3
CAUTION
BERYLLIA WARNING PER MIL- PRF-19500
Package containing beryllia shall not be ground, sandblasted,machined, or have other operations performed on them
which will produce beryllia or beryllium dust. Furthermore, beryllium oxide packages shall not be placed in acids that
will produce fumes containing beryllium.
HFA35HB60C
www.irf.com 3
Fig. 4 - Maximum Thermal Impedance Zthjc Characteristics
Fig. 2 - Typical Reverse Current vs. Reverse
Voltage
Fig. 3 - Typical Junction Capacitance vs.
Reverse Voltage
Fig. 1 - Maximum Forward Voltage Drop
vs. Instantaneous Forward Current
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1
Notes:
1. Duty factor D = t / t
2. Peak T =P x Z + T
1 2
JDM thJC C
P
t
t
DM
1
2
t , Rectangular Pulse Duration (sec)
Thermal Response (Z )
1
thJC
0.01
0.02
0.05
0.10
0.20
D = 0.50
SINGLE PULSE
(THERMAL RESPONSE)
1
10
100
0.0 1.0 2.0 3.0 4.0
FM
F
In s ta n ta ne o us F o rw a rd Cu rr e n t - I (A )
Fo rward V oltage D rop - V (V )
T = 150°C
T = 125°C
T = 25°C
J
J
J0.0001
0.001
0.01
0.1
1
10
100
1000
0 200 400 600
R
R
R e v e rse V olta g e - V (V )
R e v e rse C u rre n t - I (µ A )
T = 25°C
J
T = 125°C
J
T = 150°C
J
10
100
1000
1 10 100 1000
T = 25°C
J
Reverse Volta
g
e - V
(
V
)
R
T
Junction Capacitance - C (pF)
A
HFA35HB60C
4 www.irf.com
Fig. 7 - Typical Stored Charge vs. dif/dt Fig. 8 - Typical di(rec)M/dt vs. dif/dt
Fig. 5 - Typical Reverse Recovery vs. dif/dt Fig. 6 - Typical Recovery Current vs. dif/dt
0
30
60
90
120
150
100 1000
f
d i /d t - (A /µ s )
RR
Q - ( n C )
I = 30 A
I = 15 A
I = 7.5A
F
F
F
V = 200V
T = 12 5 °C
T = 25 °C
R
J
J
1
10
100
100 1000
f
d i /d t - (A /µ s )
I - (A )
IRRM
I = 3 0A
I = 1 5 A
I = 7.5 A
F
F
F
V = 200V
T = 125°C
T = 25°C
R
J
J
10
100
1000
10000
100 1000
f
di /dt - (A/µs )
di(rec)M/dt - (A/µs)
I = 15A
F
I = 7.5A
I = 3 0 A
F
F
V = 200V
T = 12 5°C
T = 25 °C
R
J
J
0
300
600
900
1200
100 1000
f
d i /dt - (A/µ s)
RR
Q - (n C )
I = 3 0A
I = 15A
I = 7.5A
F
F
F
V = 200V
T = 125°C
T = 25°C
R
J
J
TRR - (nS)
HFA35HB60C
www.irf.com 5
4. Qrr - Area under curve defined by trr
and IRRM
trr X IRRM
Qrr =
2
5. di(rec)M/dt - Peak rate of change of
current during tb portion of trr
Fig. 10 - Reverse Recovery Waveform and
Definitions
Fig. 9 - Reverse Recovery Parameter Test
Circuit
t
a
t
b
t
rr
Q
rr
I
F
I
RRM
I
RRM
0.5
di(rec)M/dt
0.75 I
RRM
5
4
3
2
0
1
d i /d t
f
1. dif/dt - Rate of change of current
through zero crossing
2. IRRM - Peak reverse recovery current
3. trr - Reverse recovery time measured
from zero crossing point of negative
going IF to point where a line passing
through 0.75 IRRM and 0.50 IRRM
extrapolated to zero current
REVERSE RECOVERY CIRCUIT
IRFP250
D.U.T.
L = 70µH
V = 200V
R
0.01
Ω
G
D
S
dif/d t
ADJUST
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http://www.irf.com/ Data and specifications subject to change without notice. 8/98
