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PD -2.457 rev. B 02/99
HFA70NH60
HEXFRED
Features
Reduced RFI and EMI Reduced Snubbing Extensive Characterization of Recovery Parameters
TM
Ultrafast, Soft Recovery Diode
LUG TERMINAL ANODE
a
d
BASE CATHODE
VR = 600V V F(typ.) = 1.2V IF(AV) = 70A Qrr (typ.) = 340nC IRRM(typ.) = 8.5A trr(typ.) = 33ns di(rec)M/dt (typ.) = 220A/s
Description
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.
TM
HALF-PAK
Absolute Maximum Ratings (per Leg)
Parameter
VR IF @ TC = 25C IF @ TC = 100C IFSM EAS PD @ TC = 25C PD @ TC = 100C TJ TSTG Cathode-to-Anode Voltage Continuous Forward Current Continuous Forward Current Single Pulse Forward Current Non-Repetitive Avalanche Energy Maximum Power Dissipation Maximum Power Dissipation Operating Junction and Storage Temperature Range
Max.
600 126 63 400 220 310 125 -55 to +150
Units
V A J W C
Thermal - Mechanical Characteristics
Parameter
RthJC RthCS Wt Junction-to-Case Case-to-Sink, Flat, Greased Surface Weight Mounting Torque Terminal Torque Vertical Pull 2 inch Lever Pull
Min.
15 (1.7) 30 (3.4)
Typ.
0.15 26 (0.9)
Max.
0.4 25 (2.8) 40 (4.6) 35 35
Units
C/W K/W g (oz) lbfin (Nm) lbfin
Note: Limited by junction temperature L = 100H, duty cycle limited by max T J 125C
Mounting surface must be smooth, flat, free or burrs or other protrusions. Apply a thin even film or thermal grease to mounting surface. Gradually tighten each mounting bolt in 5-10 lbfin steps until desired or maximum torque limits are reached. Module
1
HFA70NH60
PD -2.457 rev. B 02/99
Electrical Characteristics (per Leg) @ TJ = 25C (unless otherwise specified)
Parameter
VBR V FM Cathode Anode Breakdown Voltage Max Forward Voltage See Fig. 1 Max Reverse Leakage Current See Fig. 2 Junction Capacitance Series Inductance See Fig. 3
Min. Typ. Max. Units
600 1.3 1.5 1.2 4.0 1.0 140 7.0 1.5 1.7 1.4 20 4.0 250 V V A mA pF nH
Test Conditions
IR = 100A IF = 70A IF = 140A IF = 70A, T J = 125C VR = VR Rated TJ = 125C, VR = 480V VR = 200V From top of terminal hole to mounting plane
IRM CT LS
Dynamic Recovery Characteristics (per Leg) @ TJ = 25C (unless otherwise specified)
Parameter
trr trr1 trr2 IRRM1 IRRM2 Qrr1 Qrr2 di(rec)M /dt1 di(rec)M /dt2 Reverse Recovery Time See Fig. 5 Peak Recovery Current See Fig. 6 Reverse Recovery Charge See Fig. 7 Peak Rate of Fall of Recovery Current During tb See Fig. 8
Min. Typ. Max. Units

Test Conditions
33 IF = 1.0A, dif /dt = 200A/s, VR = 30V 80 120 ns TJ = 25C 140 220 TJ = 125C IF = 70A 8.5 15 TJ = 25C A 14 25 TJ = 125C VR = 200V 340 900 TJ = 25C nC 980 2300 TJ = 125C dif /dt = 200A/s 300 TJ = 25C A/s 220 TJ = 125C
1/4-20 UNC-2B
30.40 (1.197) 29.90 (1.177)
19.69 (0.775) 18.42 (0.725) 4.11 (0.162) 3.86 (0.152) 12.83 (0.505) DIA. 12.57 (0.495) 4.11 (0.162) DIA. 3.86 (0.152) 19.18 (0.755) SQ. 18.92 (0.745) 1 14.10 (0.555) 13.59 (0.535) 15.75 (0.620) 14.99 (0.590)
LEAD ASSIGNMENTS 1 - ANODE 2 - CATHODE
HALF-PAK
Dimensions in millimeters and inche
2
39.62 (1.560) 38.61 (1.520)
3.30 (0.130) 3.05 (0.120)
2
HFA70NH60
PD -2.457 rev. B 02/99
1000
10000
Reverse Current - I R (A)
T = 150C J
1000
Instantaneous Forward Current - I F (A)
100
T = 125C J
10
100
TJ = 150C TJ = 125C TJ = 25C
1
T = 25C J
0.1 0 200 400 600
10
Junction Capacitance - C T (pF)
10000
Fig. 2 - Typical Reverse Current vs. Reverse Voltage A
Reverse Voltage - VR (V)
1000
TJ = 25C
1 0.0
100
1.0
2.0
3.0
Forward Voltage Drop - V FM (V)
Fig. 1 - Maximum Forward Voltage Drop vs. Instantaneous Forward Current
10 1 10 100 1000
Reverse Voltage - VR (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
1
Thermal Impedance - Z thJC (K/W)
0.1
D = 0.50 D = 0.33 D = 0.25 D = 0.17 D = 0.08
P DM
t 1 t2
Single Pulse (Thermal Resistance)
0.01
Notes: 1. Duty factor D = t / t 12 2. Peak TJ = PDM x Z thJC + TC
0.001 0.00001
0.0001
0.001
0.01
0.1
1
10
100
t 1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics
3
HFA70NH60
PD -2.457 rev. B 02/99
250
100
VR = 200V TJ = 125C TJ = 25C
200
VR = 200V TJ = 125C TJ = 25C I F = 140A
t rr - (ns)
150
I IRRM - (A)
IF = 70A I F = 30A
10
I F = 140A
100
I F = 70A IF = 30A
50
0 100
di f /dt - (A/s)
1000
1 100
di f /dt - (A/s)
1000
Fig. 5 - Typical Reverse Recovery vs. dif/dt
4000
Fig. 6 - Typical Recovery Current vs. dif/dt
10000
VR = 200V TJ = 125C TJ = 25C
3000
VR = 200V TJ = 125C TJ = 25C
I F = 140A
2000
di(rec)M/dt - (A/s)
Q RR - (nC)
IF = 30A
1000
I F = 70A I F = 30A
1000
IF = 70A
IF =140A
0 100
di f /dt - (A/s)
1000
100 100
di f /dt - (A/s)
1000
Fig. 7 - Typical Stored Charge vs. dif/dt
Fig. 8 - Typical di(rec)M/dt vs. dif/dt
4
HFA70NH60
PD -2.457 rev. B 02/99
3
IF
trr ta tb
4
REVERSE RECOVERY CIRCUIT
VR = 200V
0 Q rr I RRM
2
0.5 I RRM di(rec)M/dt
5
0.01 L = 70H D.U.T. D IRFP250 S
1
0.75 I RRM di f /dt
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
dif/dt ADJUST G
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
Fig. 9 - Reverse Recovery Parameter Test Circuit
L = 100H HIGH-SPEED SWITCH Rg = 25 ohm CURRENT MONITOR FREE-WHEEL DIODE + Vd = 50V
Fig. 10 - Reverse Recovery Waveform and Definitions
I L(PK)
DUT
DECAY TIME V (AVAL) V R(RATED)
Fig. 11 - Avalanche Test Circuit and Waveforms
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http://www.irf.com
Fax-On-Demand: +44 1883 733420
Data and specifications subject to change without notice.
5

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