
4/98
KBU8A THRU KBU8M
SINGLE-PHASE BRIDGE RECTIFIER
Reverse Voltage - 50 to 1000 Volts
Forward Current - 8.0 Amperes
FEATURES
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 VRMS
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
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
KBU
SYMBOLS
8A
8B
8D
8G
8J
8K
8M
UNITS
Maximum repetitive peak reverse voltage
VRRM
50
100
200
400
600
800
1000
Volts
Maximum RMS voltage
VRMS
35
70
140
280
420
560
700
Volts
Maximum DC blocking voltage
VDC
50
100
200
400
600
800
1000
Volts
Maximum average forward rectified TC=100°C (NOTE 1, 3)
8.0
output current at
TA=45°C (NOTE 2)
I(AV)
6.0
Amps
Peak forward surge current single half sine-wave
superimposed on rated load (JEDEC Method) TJ=150°C
IFSM
300.0
Amps
Maximum instantaneous forward voltage drop
per leg at 8.0A
VF
1.0
Volts
Maximum DC reverse current at rated
TA=25°C
10.0
A
DC blocking voltage per leg
TA=125°C
IR
1.0
mA
Typical thermal resistance per leg (NOTE 2)
R
ΘJA
18.0
(NOTE 3)
R
ΘJC
3.0
°C/W
Operating junction and storage temperature range
TJ, TSTG
-50 to +150
°C
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
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)