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RBS8_ _35XX
GENERAL PURPOSE RECTIFIER DIODE
3500 Amperes 4200 Volts
Powerex General Purpose Rectifier Diodes are
designed with high locking voltage capability and
low forward voltage drop to minimize conduction
losses. These are packaged in hermetic, ceramic
Pow-R-Disc packages which can be mounted
using commercially available clamps and
heatsinks or fully assembled to a variety of air or
water cooled heat exchangers.
FEATURES:
Low On-State Voltage
Hermetic Ceramic Package
Excellent Surge and I
APPLICATIONS:
DC Power Supplies
ORDERING INFORMATIONInput Rectifiers
Plating Supplies
Select the complete 12 digit Part Number using the table below.
EXAMPLE: RBS84235XXOO is a 4200V-3500A General Purpose Diode
with a typical reverse recovery time of 25µs.
PART
Voltage
Rating
V
DRM-VRRM
Voltage
Code
Current
Rating
I
tavg
Current
Code
Reverse
Recovery
t
RR
Lead
Code
RBS8420042350035XXOO
400040
360036
25µs typical
2
t Ratings
Page 1
Revised:7/25/2007
Powerex, Inc.,173 Pavilion Ln, Youngwood, PA 15697-1800 (724)925-7272 www. pwrx.com
Absolute Maximum Rati ngs
CharacteristicSymbolRatingUnits
RBS8_ _35XX
GENERAL PURPOSE RECTIFIER DIODE
3500 Amperes 4200 Volts
Repetitive Peak Reverse Voltage
Average On-State Current, T
RMS On-State Current, T
Average On-State Current, T
RMS On-State Current, T
C
=89°C
C
C
=55°C
C
=89°C
=55°C
Peak One Cycle Surge Current, 60Hz, V
Peak One Cycle Surge Current, 60Hz, V
Fuse Coordination I
2
t, 50HzI2t
Peak One Cycle Surge Current, 50Hz, V
Peak One Cycle Surge Current, 50Hz, V
Fuse Coordination I
2
t, 50HzI2t
=0.6*V
R
R
R
R
RRM
=0I
=0.6*V
RRM
=0VI
V
RRM
I
F(Avg.)
I
F(RMS)
I
F(Avg.)
I
F(RMS)
I
FSM
FSM
I
FSM
FSM
4200Volts
3500A
5498A
4640A
7288A
65,000A
81,250A
2.75E+07
61,905A
77,381A
2.49E+07
A2s
A2s
Operating TemperatureTj-40 to+150°C
Storage Temperature
T
Stg.
-50 to+200°C
Approximate Weight2.5lb
1.13Kg
Mounting Force6,000 - 10,000lbs
26.6 - 44.4Knewtons
Information presented is based upon manufacturers testing and projected
capabilities. This information is subject to change without notice. The
manufacturer makes no claim as to suitability for use, reliability, capability or
future availability of this product.
Page 2
RBS8_ _35XX
GENERAL PURPOSE RECTIFIER DIODE
Powerex, Inc.,173 Pavilion Ln, Youngwood, PA 15697-1800 (724)925-7272 www. pwrx.com
Electrical Characteristics,
Tj=25°C unless otherwise speci fied
CharacteristicSymbolTest ConditionsmintypmaxUnits
Repetitive Peak Reverse
Leakage Current
Peak On-State Voltage
Model, Low LevelV
V
FM
VFM = V
+
r•
I
O
FM
I
V
RRM
Tj=150°C, V
Tj=150°C, IFM=4000A
FM
Tj=150°C0.77V
0
15%
r
IFM- π•I
RRM
FM
=Rated
3500 Amperes 4200 Volts
Rating
100150ma
1.31V
0.125
mΩ
VFM Model, High LevelV
VFM Model,
V
FM
VFM = V
4-TermATj=150°C0.690
= A + B•Ln(IFM) +
C•(I
O
) + D•(IFM)
FM
+
r•
I
FM
½
Tj=150°C1.23V
0
- I
π•I
r
B
FM
15%IFM - I
FSM
FSM
0.084
-0.0267
C5.630E-05
mΩ
D0.00973
Reverse Recovery Time
t
Tj=25°C, IFM=2000A
RR
/dt = 25 A/µs
di
R
25µs
Thermal Characteristics
Rating
CharacteristicSymbolTest ConditionsmintypmaxUnits
Thermal Resistance
Junction to Case
Case to Sink
Thermal Impedance Model
ZΘjc(t) =
Σ(A(N)•(1-exp(-t/
RΘ
jc
RΘ
cs
ZΘ
jc
Tau(N
Double side cooled0.00850.0095°C/Watt
Double side cooled0.00150.002°C/Watt
Double side cooled
))))
where:
N =
12 3 4
T
au(N) =
Page 3
A(N
) =
5.22E-051.19E-032.91E-035.35E-03
2.65E-063.43E-022.74E-012.03E+00
Powerex, Inc.,173 Pavilion Ln, Youngwood, PA 15697-1800 (724)925-7272 www. pwrx.com
5000
W
140
RBS8_ _35XX
GENERAL PURPOSE RECTIFIER DIODE
3500 Amperes 4200 Volts
Maximum On-State Voltage Drop
3.00
VFM (V)
7000
6000
atts)
4000
3000
2000
1000
Power Dissipa t ion (
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
Tj = 150 C
100010000100000
IFM (A)
Maximum On-State Power Dissipation
SINE WAVE
90
30
0
01000200030004000
Average On-State Current (A)
180
CONDUCTION A NGLE
0°180° 360°
MAXIMUM TRANSIENT THERMAL
IMPEDANCE
1.0E-02
9.0E-03
8.0E-03
7.0E-03
6.0E-03
5.0E-03
4.0E-03
3.0E-03
2.0E-03
1.0E-03
0.0E+00
Thermal Impedance (°C/Watt)
(°C)
Case Temperature
0.010.1110
Time (sec)
Maximum Allowable Case Temperature
160
150
130
120
110
100
CONDUCTION ANGLE
90
80
0°180° 360°
01000200030004000
Average On-State Current (A)
SINE WAVE
30
90
180
8000
7000
6000
5000
4000
3000
2000
1000
Power Dissipation (Watts)
Maximum On-State Power Dissipation
SQUARE WAVE
180
120
60
0
0100020003000400050006000
Average On-State Current (A)
360
CONDUCTION A NGLE
0°180° 360°
Page 4
Maximum Allowable Case Temperature
160
150
140
130
120
110
100
CONDUCTION ANGLE
90
80
Case Temperature (°C)
70
60
0°180° 360°
0100020003000400050006000
SQUARE WAVE
60
120
180
Average On-State Current (A)
360
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