KBU8A THRU KBU8M
Features
Mechanical Data
· Low Forward Voltage Drop, High Current Capability
· Surge Overload Rating to 300A Peak
· Ideal for Printed Circuit Board Applications
· Case to Terminal Isolation Voltage 1500V
· Plastic Material - UL Flammability
Classification Rating 94V-0
Maximum Ratings And Electrical Characteristics
· Case : Molded Plastic
· Terminals : Plated Leads Solderable per
MIL-STD-202, Method 208
· Polarity : As Marked on Case
· Mounting : Through Hole for #6 Screw
· Mounting Torque : 5.0 Inch-pounds Maximum
· Weight : 8.0 grams (approx.)
· Marking : Type Number
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
Notes:
(1) Thermal resistance junction to case mounted on heat sink.
(2) Non-repetitive, for t > 1.0ms and t < 8.3ms.
Peak Repetitive Reverse voltage
Working Peak Reverse voltage
DC Blocking voltage
RMS Reverse voltage
Average Rectified Output Current @ T
C
=100
Non-Repetitive Peak Forward Surge Current,
8.3ms single half-sine-wave superimposed
on rated load (JEDEC method)
Volts
Forward voltage (per element) @ I
F
=4.0 A
V
RMM
V
RWM
V
R
50 Volts
Symbols Units
1.0V
FM
V
RMS
8.0
Amps300I
FSM
T
j
T
STG
1.0
-65 to +150 ℃
Amps
Peak Reverse Current at Rated
DC Blocking voltage
I
2
t Rating for Fusing (Note 2)
Operating and Storage Temperature Range
KBU
8A KBU
8B KBU
8D KBU
8G KBU
8J KBU
8K KBU
8M
35
10
373
100
70
200
140
400
280
600
420
800
560
1000
700 Volts
μA
mA
A
2S
℃/W
Io
I
RM
I
2
t
Rθ
JA
@ T
C
=25℃
@ T
C
=125℃
Typical Thermal Resistance,
Junction to Case (Note 1) 7.5
℃
-~~+
B
C
D
H
M
N
P
A
E
L
K
J
G
K B U
Dim Min Max
A22.70 23.70
10.30 11.30
B3.80 4.10
4.20 4.70
1.70 2.20
4.50 6.80
4.80 5.80
16.80
25.40
17.80
19.30
6.60 7.10
4.70 5.20
1.20 1.30
C
G
D
H
E
All Dimens ions in mm
Dim Min Max
K
J
L
M
N
P
CURRENT 8.0 Amperes
VOLTAGE 50 to 1000 Volts
RATINGS AND CHARACTERISTIC CURVES KBU8A THRU KBU8M
0.1
1.0
10
100
0.6 0.8 1.0 1 .2
I , INSTANTANEOUS FORWARD CURRENT (A)
F
V ,INSTANTANEOUS FORWARD VOLTAGE (V)
Fi
g
.2 T
y
pical Forward Characteristics
F
T = 25°C
Pulse width = 300 µs
j
0
50
100
150
200
250
300
1 1 0 100
I,PEAK FWD SURGE CURRENT(A)
F
NUMBER OF CYCLES AT 60Hz
Fi
g
. 3 Max Non-Repetitive ForwardSur
g
e Current
T = 125° C
8.3 ms Single half-sine-wave
j
0.1
1.0
10
04080120
0.01
I , INSTANTANEOUS REVERSE CURRENT(µA)
R
PERCENT OF RATED PEAK REVERSE VOL T AGE (%)
Fi
g
.5 T
y
pical Reverse Characteristics
T = 100°C
j
T = 25°C
j
0
2
4
6
8
0 5 0 100 150
I ,A VERAGE FORWARD CURRENT (A)
(A V)
T , CASE TEMPERATURE (°C)
Fi
g
. 1 Forward Current Deratin
g
Curve
C
Mounted on4X4inch
Copper PC Board
12.7 mm lead length
Heat Sink
10
100
1000
110 100
C , JUNCTION CAPACITANCE (pF)
J
V ,REVERSE VOLTAGE (V)
Fi
g
.4 T
y
pical Junction Capacitance per element
R
0.1
T = 25°C
j
f=1MHz
