A643
A643
A643
A643
A643
40mm RECTIFIER DIODE
40mm RECTIFIER DIODE
40mm RECTIFIER DIODE
40mm RECTIFIER DIODE
40mm RECTIFIER DIODE
4400V / 1000A
4400V / 1000A
4400V / 1000A
4400V / 1000A
4400V / 1000A
SELECTION TABLE
Model No.
Repetitive Peak Reverse Voltage
V
R R M
@ T
J
=
V
R R M
@ T
J
=
-40 to 170
o
C
200
o
C
A643DD
4400 V
3800 V
A643DC
4300
3700
A643DB
4200
3600
A643DA
4100
3500
A643DP
4000
3400
A643CT
3900
3300
A643CN
3800
3200
A643CS
3700
3100
A643CM
3600
3000
A643CE
3500
2900
FORWARD CHARACTERISTIC
Process Maximum @ Tj=160degC
Forward Current, If (amperes)
Forward Voltage, Vf (volts)
Forward Voltage, Vf (volts)
91F:a643vtm
10000
5000
1000
500
100
0
1
2
3
4
5
6
7
8
Rthj-c(dc)=.037 C/W
0.01
0.1
1
THERMAL IMPEDANCE vs. ON-TIME
Zthj-c (deg C/W)
On-Time (seconds)
On-Time (seconds)
.001
.01
.05
5
The A643 rectifier diode features a nominal 40mm silicon junction diameter design , manufactured by
the proven multi-diffusion process. High reverse voltage blocking capability is optimized with moderate
recovery current and low forward voltage.
A643 is designed specifically for transportation , industrial and utility 50/60 Hz rectifiers having very
high current surge and I
2
t requirements.
MECHANICAL OUTLINE
MECHANICAL OUTLINE
MECHANICAL OUTLINE
MECHANICAL OUTLINE
MECHANICAL OUTLINE
PG:5.025 page 1 date:10/12/93
175 Great Valley Pkwy. Malvern, PA 19355
USA
CLAMPING FORCE REQUIRED
2500 - 4200 lbs. / 11.1 - 18.7 kN
B
B
A
D
20 5
J
CL
CL
A
A
A
A
A
= 2.30 in (58.0 mm)
= 2.30 in (58.0 mm)
= 2.30 in (58.0 mm)
= 2.30 in (58.0 mm)
= 2.30 in (58.0 mm)
B
B
B
B
B
= 1.35 in (34.3 mm)
= 1.35 in (34.3 mm)
= 1.35 in (34.3 mm)
= 1.35 in (34.3 mm)
= 1.35 in (34.3 mm)
D=1.04 in (26.4 mm)
D=1.04 in (26.4 mm)
D=1.04 in (26.4 mm)
D=1.04 in (26.4 mm)
D=1.04 in (26.4 mm)
PG:5.025 page 2 date:10/12/93
A643 / T64
0
250
500
750
1000
1250
1500
1750
2000
0
100
200
300
400
500
600
700
800
POWER DISSIPATION
Full Cycle Average
Average Power , Pavg (W)
Average Current , Iavg (A
Average Current , Iavg (A
half
sine
120 deg
square
MAXIMUM PEAK RECOVERY CURRENT
Peak Recovery Current, Irm(rec) (A)
Circuit Commutating di/dt,(A/us)
Circuit Commutating di/dt,(A/us)
< 10
Tj = 160 degC
diR/dt
diR/dt
di(rec)/dt
di(rec)/dt
Irm(rec)
200
100
50
10
1
5
10
Parameter
Parameter
Parameter
Parameter
Parameter
Symbol
Symbol
Symbol
Symbol
Symbol Conditions
Conditions
Conditions
Conditions
Conditions
Limits
Limits
Limits
Limits
Limits
Units
Units
Units
Units
Units
Average
Average
Average
Average
Average
Iavg
Iavg
Iavg
Iavg
Iavg
half-sine
half-sine
half-sine
half-sine
half-sine
1000
1000
1000
1000
1000
A
A
A
A
A
current
current
current
current
current
T
T
T
T
T
C
C
C
C
C
=85
=85
=85
=85
=85
o
o
o
o
o
C
C
C
C
C
Repetitive
Repetitive
Repetitive
Repetitive
Repetitive
V
V
V
V
V
R R M
R R M
R R M
R R M
R R M
T
T
T
T
T
J
J
J
J
J
= -40
= -40
= -40
= -40
= -40
to
to
to
to
to
V
V
V
V
V
peak reverse
peak reverse
peak reverse
peak reverse
peak reverse
to +170
to +170
to +170
to +170
to +170
o
o
o
o
o
C
C
C
C
C
4400
4400
4400
4400
4400
voltage
voltage
voltage
voltage
voltage
Peak reverse
Peak reverse
Peak reverse
Peak reverse
Peak reverse
I
I
I
I
I
R R M
R R M
R R M
R R M
R R M
T
T
T
T
T
J
J
J
J
J
=170
=170
=170
=170
=170
o
o
o
o
o
C
C
C
C
C
50
50
50
50
50
m a
m a
m a
m a
m a
current
current
current
current
current
25
25
25
25
25
o
o
o
o
o
C
C
C
C
C
10
10
10
10
10
Forward
Forward
Forward
Forward
Forward
V
V
V
V
V
F M
F M
F M
F M
F M
T
T
T
T
T
J
J
J
J
J
=160
=160
=160
=160
=160
o
o
o
o
o
C
C
C
C
C
1.40
1.40
1.40
1.40
1.40
V
V
V
V
V
voltage
voltage
voltage
voltage
voltage
I
I
I
I
I
F
F
F
F
F
= 1000A
= 1000A
= 1000A
= 1000A
= 1000A
Non-rep peak
Non-rep peak
Non-rep peak
Non-rep peak
Non-rep peak
I
I
I
I
I
F S M
F S M
F S M
F S M
F S M
tp = 8.3ms
tp = 8.3ms
tp = 8.3ms
tp = 8.3ms
tp = 8.3ms
11
11
11
11
11
kA
kA
kA
kA
kA
surge current
surge current
surge current
surge current
surge current
10ms
10ms
10ms
10ms
10ms
10
10
10
10
10
Peak recovery
Peak recovery
Peak recovery
Peak recovery
Peak recovery
I
I
I
I
I
R M
R M
R M
R M
R M
T
T
T
T
T
J
J
J
J
J
=160
=160
=160
=160
=160
o
o
o
o
o
C
C
C
C
C
195
195
195
195
195
A
A
A
A
A
recovery current
recovery current
recovery current
recovery current
recovery current
di/dt=10A/us
di/dt=10A/us
di/dt=10A/us
di/dt=10A/us
di/dt=10A/us
AVERAGE POWER DISSIPATION
T
J
= 160
o
C(watts)
I
A V G
half
120
o
(A)
sine
sq. wave
50
43
44
100
96
99
150
155
163
200
222
234
300
375
403
400
558
607
500
770
848
600
1013
1127
700
1286
1443
800 1592
1800
900 1929
2195
1000 2300
2630
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
10
20
30
40
50
60
Ifsm (kA)
I2t
91f:
.1E6
.2E6
.3E6
.4E6
.5E6
.6E6
Half Cycle Time Base, (milliseconds)
1
2
3
5
7
10
Non-Repeitive Ifsm & I2t
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