FEATURES
MECHANICAL DATA
: Reliable low cost construction utilizing
: moulded plastic technique results in
: inexpensive product.
: Leads, solderable per MIL - STD - 202,
: Method 208.
: Polarity symbols printed on body.
: 0.3 ounce, 8.0 grams.
Case
Terminals
Polarity
Weight
KBU8 SERIES
8.0 AMPERE SINGLE-PHASE SILICON BRIDGE RECTIFIER
VOLTAGE RANGE
50 to 1000 Volts PRV
CURRENT
8.0 Amperes
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Dimensions in millimetres
2.2
1.7
19.0
min
23.7
22.7
Ø 1.3
+
~~
±
7.1
6.6
19.3
max 11.3
10.3
4.1
3.5
5.6
4.6
5.2
4.7
KBU8A
Maximum Recurrent Peak Reverse Voltage
Maximum Bridge Input Voltage RMS
Maximum DC Blocking Voltage
Maximum Average Forward Current at
TA = 65 * / Tc =100 **
V
V
A
A
Peak Forward Surge Current, 8.3 ms single
half sine - wave superimposed on rated load
KBU8B KBU8D KBU8G KBU8J KBU8M
50
50
100
100
200
200
400
400
600
600
800
800
1000
1000
35 70 140 280 420 560 700
8.0
250
V
TA = 25°C
V
µA
mA
Storage Temperature Range
°C
°C
Maximum Forward Voltage Drop
per Element at 4.0A
Maximum Reverse Current at Rated DC
Blocking Voltage per Element
Operating Temperature Range
1.0
10.0
1.0
- 55 to + 125
- 55 to + 150
TC = 100°C
KBU8K
VRRM
VRMS
VDC
IF(AV)
IFSM
IR
TJ
TSTG
VF
°C °C (see Fig 2)
(see Fig 1)
(see Fig 3)
(see Fig 4)
Notes * Unit mounted on metal heatsink.
** Unit mounted on P.C. board.
Plastic package has Underwriters Laboratory
flammability classification 94V-0
Low leakage.
Surge overload rating - 250 amperes peak.
Ideal for printed circuit boards.
Exceeds environmental standards of
MIL - STD - 19500.
Reformatted by Anglia 9910
Reformatted by Anglia 9910
RATING AND CHARACTERISTIC CURVES
KBU8 SERIES
TEMPERATURE °C
AVERAGE FORWARD OUTPUT
CURRENT, AMPERES
FIG 2 : DERATING CURVE FOR
RECTIFIED OUTPUT CURRENT
INSTANTANEOUS FORWARD
VOLTAGE, VOLTS
INSTANTANEOUS FORWARD
CURRENT, AMPERES
FIG 3 : TYPICAL FORWARD
CHARACTERISTICS PER ELEMENT
FIG 1 : MAXIMUM NON-REPETITIVE
SURGE CURRENT PER ELEMENT
0
2.0
4.0
20 40 60 80 100 120 140
0.4 0.6 0.8 1.0 1.2 1.4
6.0
8.0
100
10
1
0.1
TJ = 25°C
Pulse Width = 300µs
0
50
200
250
PEAK FORWARD SURGE
CURRENT, AMPERES
1 10 100
NUMBER OF CYCLES AT 60Hz
150
100 8.3ms Single Half Sine Wave
TJ =125°C
FIG 4 : TYPICAL REVERSE
CHARACTERISTICS PER ELEMENT
INSTANTANEOUS REVERSE
CURRENT, MICROAMPERES
PERCENT OF RATED PEAK
REVERSE VOLTAGE
.01
0.1
1.0
20 40 60 80 100 120 140
0
10
100
500
TJ = 25°C
TJ = 125°C
CASE
AMBIENT
