May- 09
KBU804G ........ KBU807G
8.0 Amp. Glass Passivated Bridge Rectifiers
Maximum Ratings and Electrical Characteristics at 25 ºC
V
RRM
Maximum Recurrent Peak Reverse Voltage (V)
Maximum RMS Voltage (V)
I
FSM
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated
Load (JEDEC Method)
V
DC
Maximum DC Blocking Voltage (V)
200 A
V
RMS
T
j
Operating Temperature Range -55 to +150 °C
Current
8.0 A
Voltage
400 V to 1000 V
I
F(AV)
Maximum Average Forward Rectified
Current @ TA = 65 °C 8.0 A
T
stg
Storage Temperature Range -55 to +150 °C
Electrical Characteristics at Tamb = 25 °C
1.0 V
V
F
Maximum Instantaneous Forward Voltage
@ = 4.0 A
@ = 8.0 A
I
R
Maximum DC Reverse Current @ TA = 25 °C
at Rated DC Blocking Voltage @ TA =125°C
5.0 µA
500 µA
400
400
280
600
600
420
800
800
560
1000
1000
700
KBU
804G
KBU
805G
KBU
806G
KBU
807G
MECHANICAL DATA
Case: Molded plastic body.
Plastic material has Underwriters Laboratory
Flammability Classification 94V-0
Mounting position: Any
Dimensions in mm.
KBU
Ideal for printed circuit board
Glass passivated chip junction
Reliable low cost
construction
S
urge overload rating to 200 amperes peak
High temperature soldering guaranteed:
260 °C / 10 seconds / 9.5mm, lead lengths.
Mounting torque: 5 in. Ibs. Max.
1.1 V
.185(4.7)
.165(4.2) .280(7.1)
.260(6.6)
.935(23.7)
.895(22.7)
.160(4.1)
.140(3.6)
.70(17.8)
.66(16.8)
.455(11.3)
.405(10.3)
.085(2.2)
.065(1.7)
.260(6.8)
.180(4.5)
.220(5.6)
.180(4.6)
.052(1.3)
.048(1.2)
.165(4.2)
.150(3.8)
1.0 (25.4)
MIN
.0760 (19.3)
MAX
45º
Typical Thermal Resistance
(Note1)
18 °C/W
Rth (j-a)
Rth (j-c) 3.0 °C/W
High case dielectric strength
Notes: 1. Units case mounted on 4.0" x 6.0" x 0.25" Al. Plate heat sink.
Rating And Characteristic Curves
May - 09
KBU804G ........ KBU807G
FIG.1- MAXIMUM NON-REPETITIVE FORWARD SURGE
CURRENT PER BRIDGE ELEMENT
PEAK FORWARD SURGE CURRENT.(A)
105502120
100
100
50
0
150
250
300
200
NUMBER OF CYCLES AT 60Hz
8.3ms Single Half Sine Wave
Tj=25 C
0
FIG.2- MAXIMUM FORWARD CURRENT DERATING
CURVE
AVERAGE FORWARD CURRENT.(A)
500 100 150
0
2
4
6
10
8
AMBIENT TEMPERATURE. ( C)
o
MOUNTED ON 4X4 INCH
COPPER PC BOARD
0.5"(12.7mm) LEAD LENGTH
FIG.4- TYPICAL REVERSE CHARACTERISTICS
PER BRIDGE ELEMENT
INSTANTANEOUS REVERSE CURRENT.(A)
020 40 60 80 100 120 140
0.1
1
10
100
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
TJ=125 C
0
TJ=25 C
0
FIG.3- TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS PER BRIDGE ELEMENT
INSTANTANEOUS FORWARD CURRENT.(A)
.7.6 .8 1.0.9 1.1 1.2 1.3
0.1
0.4
4.0
40
0.2
2.0
20
1.0
10
100
INSTANTANEOUS FORWARD VOLTAGE. (V)
