PD-20380A
HFA45HI60C
TM
HEXFRED
Ultrafast, Soft Recovery Diode
Features
(ISOLATED BASE)
• Reduced RFI and EMI
• Reduced Snubbing
• Extensive Characterization of Recovery Parameters
• Hermetic
• Electrically Isolated
• Ceramic Eyelets
VR = 600V
VF = 1.7V
Qrr = 375nC
ANODE
COMMON
CATHODE
ANODE
Description
TM
HEXFRED 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.
TO-259AA
Absolute Maximum Ratings (per Leg)
Parameter
VR
IF @ TC = 100°C
IFSM @ TC = 25°C
PD @ TC = 25°C
TJ
TSTG
D.C. Reverse Voltage
Continuous Forward Current 
Single Pulse Forward Current ‚
Maximum Power Dissipation
Operating Junction and
Storage Temperature Range
Max.
Units
600
45 *
225
104
-55 to +150
V
A
W
°C
Thermal - Mechanical Characteristics
Parameter
RθJC
Junction-to-Case, Single Leg Conducting
Weight
Typ.
Max.
Units
—
10.9
1.2
—
°C/W
g
Note:  D.C. = 50% rect. wave
‚ 1/2 sine wave, 60 Hz , P.W. = 8.33 ms
* Current is limited by pin diameter.
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6/23/99
HFA45HI60C
Electrical Characteristics (per Leg) @ TJ = 25°C (unless otherwise specified)
Parameter
VBR
VFM
Min. Typ. Max. Units
Cathode Anode Breakdown Voltage
Max Forward Voltage
I RM
Max Reverse Leakage Current
CT
LS
Junction Capacitance
Series Inductance
600
—
—
—
—
—
—
—
—
—
—
—
—
—
—
13
—
1.7
2.0
1.5
10
1.0
100
—
V
V
µA
mA
pF
nH
Test Conditions
IR = 100µA
IF = 22A
IF = 45A
IF = 22A, TJ = 125°C
VR = VR Rated
TJ = 125°C, VR = 480V
VR = 200V
Measured from center of bond pad to
end of anode bonding wire
Dynamic Recovery Characteristics (per Leg) @ TJ = 25°C
Parameter
trr
IRRM
QRR
Min. Typ. Max. Units
Reverse Recovery Time
Max Reverse Recovery Current
Reverse Recovered Charge
—
—
—
—
—
—
75
10
375
nS
A
nC
Test Conditions
IF = 22A, di/dt < 200A/us, VR = 200V
IF = 22A, di/dt < 200A/us, VR = 200V
IF = 22A, di/dt < 200A/us, VR = 200V
Case Outline and Dimensions — TO-259AA
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M-1982
2. ALL DIMENSIONS ARE SHOW IN MILLIMETERS (INCHES).
LEGEND
1- ANODE
2- COMMON CATHODE
3- ANODE
Conforms to JEDEC Outline TO-259AA
Dimensions in millimeters and (inches)
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.
2
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HFA45HI60C
3
t rr
IF
R E V E R S E R E C O V E R Y C IR C U IT
0
Q rr
V R = 2 00 V
2
4
0.5 I R R M
5
0.75 I R R M
L = 70µH
D .U .T.
D
G
I RRM
di(re c)M /dt
0.01 Ω
d if/d t
A D JU S T
tb
ta
IR F P 2 50
S
Fig.1 - Reverse Recovery Parameter Test
Circuit
1
di f /d t
1. dif/dt - Rate of change of current
through zero crossing
2. IRRM - Peak reverse recovery current
4. Qrr - Area under curve defined by trr
and IRRM
trr X IRRM
Qrr =
2
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
Fig. 2 - Reverse Recovery Waveform and
Definitions
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 322 3331
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IR FAR EAST: K&H Bldg., 2F, 30-4 Nishi-Ikebukuro 3-Chome, Toshima-Ku, Tokyo Japan 171 Tel: 81 3 3983 0086
IR SOUTHEAST ASIA: 1 Kim Seng Promenade, Great World City West Tower, 13-11, Singapore 237994 Tel: ++ 65 838 4630
IR TAIWAN:16 Fl. Suite D. 207, Sec. 2, Tun Haw South Road, Taipei, 10673, Taiwan Tel: 886-2-2377-9936
http://www.irf.com/
Data and specifications subject to change without notice.
6/99
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