4/98
KBU4A THRU KBU4M
SINGLE-PHASE BRIDGE RECTIFIER
Reverse Voltage - 50 to 1000 Volts
Forward Current - 4.0 Amperes
FEATURES
Plastic package has Underwriters Laboratory Flammability
Classification 94V-0
This series is UL listed under Recognized under Component
Index, file number E54214
High case dielectric strength
of 1500 V
RMS
Ideal for printed circuit boards
Surge overload rating of 200 Amperes peak
Typical I
R
less than 0.1
A
High temperature soldering guaranteed:
250C/10 seconds, 0.375" (9.5mm) lead length,
5lbs (2.3kg) tension
MECHANICAL DATA
Case: Molded plastic body
Terminals: Plated lead solderable per MIL-STD-750,
Method 2026
Mounting Position: Any
(NOTE 3)
Mounting Torque: 5 in. - lb. max.
Weight: 0.3 ounce, 8.0 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25C ambient temperature unless otherwise specified.
KBU
KBU
KBU
KBU
KBU
KBU
KBU
SYMBOLS 4A 4B
4D 4G 4J
4K 4M
UNITS
Maximum repetitive peak reverse voltage
V
RRM
50
100
200
400
600
800
1000
Volts
Maximum RMS voltage
V
RMS
35
70
140
280
420
560
700
Volts
Maximum DC blocking voltage
V
DC
50
100
200
400
600
800
1000
Volts
Maximum average forward rectified T
C
=100C
(NOTE 1)
4.0
output current at
T
A
=30C
(NOTE 2)
I
(AV)
4.0
Amps
Peak forward surge current single sine-wave
superimposed on rated load (JEDEC Method)
I
FSM
200.0
Amps
Maximum instantaneous forward voltage drop
per leg at 4.0A
V
F
1.0
Volts
Maximum DC reverse current
T
A
=25C
5.0
A
at rated DC blocking voltage per leg
T
A
=125C
I
R
1.0
mA
Typical thermal resistance per leg
(NOTE 2)
R
JA
19.0
(NOTE 1)
R
JL
4.0
C/W
Operating junction and storage temperature range
T
J,
T
STG
-50 to +150
C
NOTES:
(1) Units mounted on a 2.0 x 1.6 x 0.3" thick (5 x 4 x 0.8cm.) Al. Plate
(2) Units mounted on P.C.B. with 0.5 x 0.5" (12 x 12mm) copper pads and 0.375" (9.5mm) lead length
(3) Recommended mounting position is to bolt down on heatsink with silicone thermal compound for maximum heat transfer
with #6 screw
0.160 (4.1)
0.065 (1.7)
0.185 (4.7)
0.895 (22.7)
0.935 (23.7)
0.140 (3.6)
0.165 (4.2)
0.085 (2.2)
0.240 (6.09)
0.200 (5.08)
0.220 (5.6)
0.180 (4.6)
0.075 (1.9) R. TYP.
(2 PLACES)
45
o
0.205 (5.2)
0.185 (4.7)
0.052 (1.3)
0.048 (1.2)
0.280 (7.1)
0.260 (6.6)
DIA.
0.760
(19.3)
MAX.
0.700
(17.8)
0.660
(16.8)
1.0
(25.4)
MIN.
0.455 (11.3)
0.405 (10.3)
Case Style KBU
Dimensions in inches and (millimeters)
0
50
100
150
0
1.0
2.0
3.0
4.0
1
10
100
25
50
75
100
125
150
175
200
0.1
1
10
100
0
25
50
75
100
150
0.7
0.8
0.9
0.1
1
10
100
0.6
1.0
1.1
1.2
1.3
0
20
40
60
80
100
0.01
0.1
1
10
50
RATINGS AND CHARACTERISTICS CURVES KBU4A THRU KBU4M
FIG. 1 - DERATING CURVE OUTPUT RECTIFIED
CURRENT
TEMPERATURE, C
T
A
, P.C.B. MOUNTING
0.47 x 0.47" (12 x 12mm)
COPPER PADS
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
T
J
=25C
PULSE WIDTH=300
s
1% DUTY CYCLE
FIG. 4 - TYPICAL REVERSE LEAKAGE
CHARACTERISTICS PER LEG
INSTANTANEOUS FORWARD CURRENT,
AMPERES
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
PER LEG
REVERSE VOLTAGE, VOLTS
T
J
=25
C
f=1.0 MHz
Vsig=50mVp-p
T
J
=100C
HEAT-SINK MOUNTING,
T
C,
2.0 x 1.6 x 3.0"
AVERAGE FORWARD CURRENT,
AMPERES
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS PER LEG
SINGLE SINE-WAVE
(JEDEC Method)
T
J
=150C
NUMBER OF CYCLES AT 60 H
Z
PEAK FORWARD SURGE CURRENT,
AMPERES
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT PER LEG
(5.0 x 4.0 x 0.8cm)
AL. PLATE
T
J
=25C
60 H
Z
RESISTIVE
OR INDUCTIVE
LOAD
JUNCTION
CAPACITANCE, pF
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