KBU8A THRU KBU8M
Features
· 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
CURRENT 8.0 Amperes
VOLTAGE 50 to 1000 Volts
A
C
B
D
K
L
M
-
J
~
~
+
E
N
P
Mechanical Data
· 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
H
Dim
A
B
C
D
E
G
H
G
KBU
Min
Max
Dim
Min
J
22.70
23.70
25.40
3.80
4.10
K
16.80
4.20
4.70
L
M
1.70
2.20
6.60
N
4.70
10.30
11.30
4.50
6.80
P
1.20
4.80
5.80
A ll Dimens ions in mm
Max
19.30
17.80
7.10
5.20
1.30
Maximum Ratings And Electrical Characteristics
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
Symbols
Peak Repetitive Reverse voltage
Working Peak Reverse voltage
DC Blocking voltage
RMS Reverse voltage
Average Rectified Output Current
@ T
C
=100
℃
V
RMM
V
RWM
V
R
V
RMS
Io
I
FSM
V
FM
I
RM
I
2
t
Rθ
JA
T
j
T
STG
KBU
8A
50
35
KBU
8B
100
70
KBU
8D
200
140
KBU
8G
400
280
8.0
300
1.0
10
1.0
373
7.5
-65 to +150
KBU
8J
600
420
KBU
8K
800
560
KBU
8M
1000
700
Units
Volts
Volts
Amps
Amps
Volts
μA
mA
A
2S
℃/W
℃
Non-Repetitive Peak Forward Surge Current,
8.3ms single half-sine-wave superimposed
on rated load (JEDEC method)
Forward voltage (per element)
Peak Reverse Current at Rated
DC Blocking voltage
I
2
t Rating for Fusing (Note 2)
Typical Thermal Resistance,
Junction to Case (Note 1)
Operating and Storage Temperature Range
@ I
F
=4.0 A
@ T
C
=25℃
@ T
C
=125℃
Notes:
(1) Thermal resistance junction to case mounted on heat sink.
(2) Non-repetitive, for t > 1.0ms and t < 8.3ms.
RATINGS AND CHARACTERISTIC CURVES KBU8A THRU KBU8M
8
I
(A V)
,A VERAGE FORWARD CURRENT (A)
100
I
F
, INSTANTANEOUS FORWARD CURRENT (A)
Heat Sink
6
10
4
1.0
2
Mounted on 4 X 4 inch
Copper PC Board
12.7 mm lead length
T
j
= 25°C
Pulse width = 300 µs
0
0
50
100
150
T
C
, CASE TEMPERATURE (°C)
Fi g. 1 Forward Current Derating Curve
0.1
0.6
0.8
1.0
1 .2
V
F
,INSTANTANEOUS FORWARD VOLTAGE (V)
Fi g. 2 Typical Forward Characteristics
C
J
, JUNCTION CAPACITANCE (pF)
300
T
j
= 125°C
8.3 ms Single half-sine-wave
1000
T
j
= 25°C
f = 1 MHz
I
F
,PEAK FWD SURGE CURRENT (A)
250
200
100
150
100
50
0
1
10
100
NUMBER OF CYCLES AT 60Hz
Fi g. 3 Max Non-Repetitive Surge Forward Current
10
0.1
1
10
100
V
R
,REVERSE VOLTAGE (V)
Fi g. 4 Typical Junction Capacitance per element
10
I
R
, INSTANTANEOUS REVERSE CURRENT(µA)
T
j
= 100°C
1.0
0.1
T
j
= 25°C
0.01
0
4 0
80
1 20
PERCENT OF RATED PEAK REVERSE VOLT AGE (%)
Fi g. 5 Typical Reverse Characteristics
