BL
GALAXY ELECTRICAL
SILICON BRIDGE RECTIFIERS
FEATURES
Rating to 1000V PRV
Surge overload rating to
250
Amperes peak
Ideal for printed circuit board
Reliable low cost construction utilizing molded
.760(19.3)Max
.700(17.8)
.660(16.8)
.160(4.1)
.140(3.6)
KBU8A - - - KBU8M
VOLTAGE RANGE: 50 --- 1000 V
CURRENT: 8.0A
KBU
.933(23.7)
.894(22.7)
.185(4.7)
.165(4.2)
.280(7.1)
.260(6.6)
45
0
.085(2.2)
.065(1.7)
+
+
_
~
.075(1.9)R.TYP.
(2 PLACES)
plastic technique results in inexpensive product
Lead solderable per MIL-STD-202 method 208
1.0(25.4)Min
~
+
.455(11.3)
.405(10.3)
.260(6.6)
.180(4.5)
.205(5.2)
.185(4.7)
.052(1.3)
.048(1.2)
.220(5.6)
.180(4.6)
Dimensions in inches and (mm)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
KBU
8A
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard
output current
@T
A
=50
KBU
8B
100
70
100
KBU
8D
200
140
200
KBU
8G
400
280
400
8.0
KBU
8J
600
420
600
KBU
8K
800
560
800
KBU
8M
1000
700
1000
UNITS
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
50
35
50
Peak forw ard surge current
8.3ms single half-sine-w ave
superimposed on rated load
Maximum instantaneous forw ard voltage
@ 4.0 A
Maximum reverse current
at rated DC blocking voltage
@T
A
=25
@T
A
=100
I
FSM
250.0
A
V
F
I
R
T
J
T
STG
1.0
10.0
1.0
- 55 ---- + 125
- 55 ---- + 150
V
μA
mA
Operating junction temperature range
Storage temperature range
www.galaxycn.com
Document Number 0287024
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
FIG.1 -- TYPICAL FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD OUTPUT CURRENT,
AMPERES
KBU8A - - - KBU8M
FIG.2 -- MAXIMUM FORWARD SURGE CURRENT
8
PEAK FORWARD SURGE CURRENT,
AMPERES
250
225
200
175
150
125
100
75
1
2
5
10
20
50
100
8.3ms Single Half Sine Wave
T
J
=125
6
4
2
MOUNTES ON 4:4 INCH CPUFER
PC BOARD
0.5"(12.7mm) Lead length
0
0
25
50
75
100
125
150
175
AMBIENT TEMPERATURE,
FIG.3 -- TYPICAL FORWARD CHARACTERISTIC
NUMBER OF CYCLES AT 60H
Z
FIG.4 -- TYPICAL REVERSE CHARACTERISTIC
INSTANTANEOUS REVERSE CURRENT,
MICRO AMPERES
INSTANTANEOUS FORWARD CURRENT,
AMPERES
100
40
20
10
4.0
2.0
1.0
0.4
0.2
0.1
10
T
J
=100
1
T
J
=25
Pulse Width
=300
µ
S
.1
T
J
=25
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
.01
0
20
40
60
80
100
120
140
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
PERCENT OF RATED PEAK REVERSE VOLTAGE
FIG.5 -- TYPICAL JUNCTION CAPACITANCE PER ELEMENT
400
CAPACITANCE, pF
100
50
T
J
=25
10
1
10
100
REVERSE VOLTAGE, VOLTS
www.galaxycn.com
Document Number 0287024
BL
GALAXY ELECTRICAL
2.
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