KBU8A THRU KBU8M
SINGLE-PHASE BRIDGE RECTIFIER
Reverse Voltage -
50 to 1000 Volts
Case Style KBU
0.935 (23.7)
0.160 (4.1)
0.140 (3.6)
0.895 (22.7)
0.185 (4.7)
0.165 (4.2)
45
o
0.700
(17.8)
0.660
(16.8)
0.075 (1.9) R. TYP.
(2 PLACES)
0.455 (11.3)
0.405 (10.3)
0.085 (2.2)
0.065 (1.7)
Forward Current -
8.0 Amperes
FEATURES
0.760
(19.3)
MAX.
1.0
(25.4)
MIN.
0.052 (1.3)
0.048 (1.2)
DIA.
0.220 (5.6)
0.180 (4.6)
0.240 (6.09)
0.200 (5.08)
♦
Plastic material used carries Underwriters Laboratory
Flammability Classification 94V-0
♦
This series is UL listed under Recognized Component Index,
file number E54214
♦
High case dielectric strength
of 1500 V
RMS
♦
Ideal for printed circuit boards
♦
High forward surge current capability
♦
High temperature soldering guaranteed:
250°C/10 seconds, 0.375" (9.5mm) lead length,
5lbs. (2.3 kg) tension
MECHANICAL DATA
Case:
Molded plastic body
Terminals:
Plated leads solderable per MIL-STD-750,
Method 2026
Mounting Position:
Any
(NOTE 1)
Mounting Torque:
5 in.-lb. max.
Weight:
0.3 ounce, 8.0 grams
0.205 (5.2)
0.185 (4.7)
0.280 (7.1)
0.260 (6.6)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOLS
KBU
8A
KBU
8B
KBU
8D
KBU
8G
KBU
8J
KBU
8K
KBU
8M
UNITS
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified T
C
=100°C
(NOTE 1, 3)
output current at
T
A
=45°C
(NOTE 2)
Peak forward surge current single half sine-wave
superimposed on rated load (JEDEC Method) T
J
=150°C
Maximum instantaneous forward voltage drop
per leg at 8.0A
Maximum DC reverse current at rated
DC blocking voltage per leg
Typical thermal resistance per leg
(NOTE 2)
(NOTE 3)
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
T
A
=25°C
T
A
=125°C
I
R
R
ΘJA
R
ΘJC
T
J
, T
STG
50
35
50
100
70
100
200
140
200
400
280
400
8.0
6.0
300.0
1.0
10.0
1.0
18.0
3.0
-50 to +150
600
420
600
800
560
800
1000
700
1000
Volts
Volts
Volts
Amps
Amps
Volts
µA
mA
°C/W
°C
Operating junction and storage temperature range
NOTES:
(1) Recommended mounting position is to bolt down on heatsink with silicone thermal compound for maximum heat transfer with #6 screw
(2) Units mounted in free air, no heatsink, P.C.B. at 0.375" (9.5mm) lead length with 0.5 x 0.5” (12 x 12mm) copper pads
(3) Units mounted on a 3.0 x 3.0” x 0.11" thick (7.5 x 7.5 x 0.3cm) Al. Plate heatsink
4/98
RATINGS AND CHARACTERISTICS CURVES KBU8A THRU KBU8M
FIG. 1 - DERATING CURVE OUTPUT RECTIFIED
CURRENT
AVERAGE FORWARD CURRENT,
AMPERES
PEAK FORWARD SURGE CURRENT,
AMPERES
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
8.0
300
HEAT-SINK MOUNTING,T
C
3.0 x 3.0 x 12”THK AL. PLATE
(7.5 x 0.3cm)
250
200
150
100
50
0
SINGLE SINE-WAVE
(JEDEC Method)
T
J
=150°C
6.0
4.0
P.C.B. MOUNTING, T
A
0.375” (9.5mm) LEAD LENGTH
0.5 x 0.5” (12 x 12mm) COPPER PADS
60 H
Z
RESISTIVE OR INDUCTIVE LOAD
2.0
0
0
50
100
150
1.0 CYCLE
TEMPERATURE, °C
1
10
NUMBER OF CYCLES AT 60 H
Z
100
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS PER LEG
FIG. 4 - TYPICAL REVERSE LEAKAGE
CHARACTERISTICS PER LEG
50
100
INSTANTANEOUS FORWARD CURRENT,
AMPERES
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
10
T
J
=100°C
10
T
J
=25°C
PULSE WIDTH=300µs
1% DUTY CYCLE
1
1
0.1
T
J
=25°C
0.1
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
0.01
0
20
40
60
80
100
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
PER LEG
400
JUNCTION CAPACITANCE, pF
T
J
=25°C
f=1.0 MHz
Vsig=50mVp-p
100
10
1
10
REVERSE VOLTAGE, VOLTS
100
