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PD -2.445 rev. B 02/99
Reduced RFI and EMI
Reduced Snubbing
Extensive Characterization of
Recovery Parameters
Features
Description
HEXFRED
TM
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
HEXFRED
TM
HFA280NJ60C
BASE COMMON CATHODE
LUG
TERMINAL
ANODE 1
LUG
TERMINAL
ANODE 2
V
R
= 600V
V
F
(typ.)
= 1.3V
I
F(AV)
= 280A
Q
rr
(typ.) = 490nC
I
RRM
(typ.)
= 9.3A
t
rr
(typ.)
= 39ns
di
(rec)M
/dt (typ.)
= 200A/s
TO-244AB
Thermal - Mechanical Characteristics
Absolute Maximum Ratings (per Leg)
lbfin
(Nm)
C/W
K/W
Parameter
Min.
Typ.
Max.
Units
R
thJC
Junction-to-Case, Single Leg Conducting
0.20
Junction-to-Case, Both Legs Conducting
0.10
R
thCS
Case-to-Sink, Flat, Greased Surface
0.10
Wt
Weight
79 (2.8)
g (oz)
Mounting Torque
30 (3.4)
40 (4.6)
Mounting Torque Center Hole
12 (1.4)
18 (2.1)
Terminal Torque
30 (3.4)
40 (4.6)
Vertical Pull
80
2 inch Lever Pull
35
Parameter
Max.
Units
V
R
Cathode-to-Anode Voltage
600
V
I
F
@ T
C
= 25C
Continuous Forward Current
222
I
F
@ T
C
= 100C
Continuous Forward Current
111
I
FSM
Single Pulse Forward Current
800
E
AS
Non-Repetitive Avalanche Energy
220
J
P
D
@ T
C
= 25C
Maximum Power Dissipation
625
P
D
@ T
C
= 100C
Maximum Power Dissipation
250
T
J
Operating Junction and
T
STG
Storage Temperature Range
-55 to +150
W
A
C
lbfin
Note: Limited by junction temperature
Mounting surface must be smooth, flat, free or burrs or other
L = 100H, duty cycle limited by max T
J
protrusions. Apply a thin even film or thermal grease to mounting
125C
surface. Gradually tighten each mounting bolt in 5-10 lbfin steps
until desired or maximum torque limits are reached. Module
1
HFA280NJ60C
PD-2.445 rev. B 02/99
2
Parameter
Min. Typ. Max. Units
Test Conditions
V
BR
Cathode Anode Breakdown Voltage
600
V
I
R
= 100A
V
FM
Max Forward Voltage
1.4
1.6
I
F
= 140A
1.6
1.8
V
I
F
= 280A
1.3
1.5
I
F
= 140A, T
J
= 125C
I
RM
Max Reverse Leakage Current
8.0
40
A
V
R
= V
R
Rated
2.0
8.0
mA
T
J
= 125C, V
R
= 480V
C
T
Junction Capacitance
280 400
pF
V
R
= 200V
From top of terminal hole to mounting
plane
Electrical Characteristics (per Leg) @ T
J
= 25C (unless otherwise specified)
Dynamic Recovery Characteristics (per Leg) @ T
J
= 25C (unless otherwise specified)
A/s
nC
A
L
S
Series Inductance
5.0
nH
Parameter
Min. Typ. Max. Units Test Conditions
t
rr
Reverse Recovery Time
39
I
F
= 1.0A, di
f
/dt = 200A/s, V
R
= 30V
t
rr1
92
140
ns
T
J
= 25C
t
rr2
180 270
T
J
= 125C
I
F
= 140A
I
RRM1
Peak Recovery Current
9.3
17
T
J
= 25C
I
RRM2
16
30
T
J
= 125C
V
R
= 200V
Q
rr1
Reverse Recovery Charge
490 1200
T
J
= 25C
Q
rr2
1400 4000
T
J
= 125C
di
f
/dt = 200A/s
di
(rec)M
/dt1
Peak Rate of Fall of Recovery Current
290
T
J
= 25C
di
(rec)M
/dt2
During t
b
200
T
J
= 125C
63.50 (2.500)
60.96 (2.400)
23.55 (0.927)
20.42 (0.804)
14.99 (0.590)
15.75 (0.620)
20.32 (0.800)
17.78 (0.700)
39.75 (1.565)
40.26 (1.585)
80.01 (3.150)
34.925 (1.375)
3.35 (0.132)
3.02 (0.119)
90.17 (3.550)
92.71 (3.650)
DIA.
7.49 (0.295)
6.99 (0.275)
(2 PLCS.)
10.41 (0.410)
9.65 (0.380)
DIA.
DIA.
4.70 (0.185)
4.95 (0.195)
1/4-20 SLOTTED HEX
REF.
Dimensions in Millimeters and (Inches)
CONFORMS TO JEDEC
OUTLINE TO-244AB
1
2
3
LEAD ASSIGNMENTS
1 - ANODE
2 - CATHODE
3 - ANODE
See Fig. 1
See Fig. 2
See Fig. 3
HFA280NJ60C
PD-2.445 rev. B 02/99
3
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics, (per Leg)
Fig. 2 - Typical Reverse Current vs. Reverse
Voltage, (per Leg)
Fig. 3 - Typical Junction Capacitance vs.
Reverse Voltage, (per Leg)
Fig. 1 - Maximum Forward Voltage Drop
vs. Instantaneous Forward Current,
(per Leg)
0.1
1
10
100
1000
10000
0
200
400
600
R
R
Reverse Voltage - V (V)
T = 150C
Reverse Cu
rrent - I
(
A)
T = 125C
T = 25C
J
J
J
100
1000
10000
1
10
100
1000
T = 25C
J
Reverse Voltage - V (V)
R
T
Juncti
on Capa
citan
ce - C (p
F)
A
1
10
100
1000
0.0
1.0
2.0
3.0
4.0
FM
F
I
n
stant
aneou
s
Forward Curre
nt - I
(A)
Forward Voltage Drop - V (V)
T = 150C
T = 125C
T = 25C
J
J
J
0.001
0.01
0.1
1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
1
th
JC
t , Rectangular Pulse Duration (Seconds)
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
Single Pulse
(Thermal Resistance)
T
her
m
a
l
I
m
p
edanc
e -
Z
(
K
/
W
)
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
J
DM
thJC
C
2
1
HFA280NJ60C
PD-2.445 rev. B 02/99
4
Fig. 7 - Typical Stored Charge vs. di
f
/dt,
(per Leg)
Fig. 8 - Typical di
(rec)M
/dt vs. di
f
/dt,
(per Leg)
Fig. 5 - Typical Reverse Recovery vs. di
f
/dt,
(per Leg)
Fig. 6 - Typical Recovery Current vs. di
f
/dt,
(per Leg)
40
80
120
160
200
240
280
100
1000
f
di /dt - (A/s)
t
- (ns)
rr
I = 200A
I = 50A
I = 140A
V = 200V
T = 125C
T = 25C
R
J
J
F
F
F
1
10
100
100
1000
f
di /dt - (A/s)
I
- (A)
IR
R
M
I = 200A
I = 50A
I = 140A
V = 200V
T = 125C
T = 25C
R
J
J
F
F
F
0
1000
2000
3000
4000
5000
100
1000
f
di /dt - (A/s)
RR
Q
- (nC)
I = 50A
I = 200A
I = 140A
V = 200V
T = 125C
T = 25C
R
J
J
F
F
F
100
1000
10000
100
1000
f
di /dt - (A/s)
di(re
c)M
/
d
t - (A/
s)
I = 50A
I = 200A
I = 140A
V = 200V
T = 125C
T = 25C
R
J
J
F
F
F
HFA280NJ60C
PD-2.445 rev. B 02/99
5
4. Q
rr
- Area under curve defined by t
rr
and I
RRM
t
rr
X I
RRM
Q
rr
=
2
5. di
(rec)M
/dt - Peak rate of change of
current during t
b
portion of t
rr
V
(AVAL)
R(RATED)
I
L(PK)
V
DECAY
TIME
Fig. 11 - Avalanche Test Circuit and Waveforms
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
di /dt
f
1. di
f
/dt - Rate of change of current
through zero crossing
2. I
RRM
- Peak reverse recovery current
3. trr - Reverse recovery time measured
from zero crossing point of negative
going I
F
to point where a line passing
through 0.75 I
RRM
and 0.50 I
RRM
extrapolated to zero current
REVERSE RECOVERY CIRCUIT
IRFP250
D.U.T.
L = 70H
V = 200V
R
0.01
G
D
S
dif/dt
ADJUST
CURRENT
MONITOR
HIGH-SPEED
SWITCH
DUT
Rg = 25 ohm
+
FREE-WHEEL
DIODE
Vd = 50V
L = 100H
http://www.irf.com Fax-On-Demand: +44 1883 733420 Data and specifications subject to change without notice.
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