KBU4A ~ KBU4M
PRV : 50 - 1000 Volts
Io : 4.0 Amperes
FEATURES :
*
*
*
*
Ideal for printed circuit boards
High surge current capability
High case dielectric strength of 1500 V
RMS
Pb / RoHS Free
Silicon Bridge Rectifiers
KBU
0.935 (23.7)
0.895 (22.7)
0.085 (2.2)
0.065 (1.7)
0.16 (4.1)
0.14 (3.6)
0.760 (19.3)
MAX.
+
+
+ AC AC
1.80 (29.9)
MIN.
1.0 (25.4)
MIN.
MECHANICAL DATA :
*
*
*
*
Case : Molded plastic
Polarity : Polarity symbols marked on case
Mounting position : Any
Weight : 8.0 grams
0.085 (2.16)
0.065 (1.65)
0.220 (5.60)
0.180 (4.60)
0.052 (1.30)
0.048 (1.20)
0.280 (7.1 )
0.260 (6.6)
Dimensions in inches and ( millimeter )
Rating at 25
°
C ambient temperature unless otherwise specified.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
RATING
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
Output Current at Ta = 30 °C (Note 1)
Peak Forward Surge Current, Single sine-wave
Superimposed on rated load
Maximum Instantaneous Forward Voltage per leg at I
F
= 4 A
Maximum DC Reverse Current
at Rated DC Blocking Voltage per leg
Thermal Resistance, Junction to Ambient, per leg (Note1)
Thermal Resistance, Junction to Lead, per leg (Note2)
Operating Junction and Storage Temperature Range
SYMBOL
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
V
F
I
R
I
R(H)
R
θJA
R
θJL
T
J
, T
STG
KBU KBU KBU KBU KBU KBU KBU
4A
4B
4D
4G
4J
4K
4M
50
35
50
100
70
100
200
140
200
400
280
400
4.0
200
1.0
5.0 (Ta = 25°C)
1.0 (Ta = 125°C)
19
4.0
- 50 to + 150
600
420
600
800
560
800
1000
700
1000
UNIT
V
V
V
A
A
V
μA
mA
°C/W
°C/W
°C
Notes :
(1) Units mounted on P.C.B. with 0.5 x 0.5" (12 x 12 mm) copper pads and 0.375" (9.5 mm) lead length.
(2) Units mounted on a 2.0 x 1.6 x 0.3" thick (5 x 4 x 0.8 cm) Al.Plate
Page 1 of 2
Rev. 01 : February 15, 2006
RATING AND CHARACTERISTIC CURVES ( KBU4A - KBU4M )
FIG.1 - DERATING CURVE FOR OUTPUT
RECTIFIED CURRENT
4.0
FIG.2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
200
175
150
125
100
75
50
25
0
3.0
2.0
PEAK FORWARD SURGE
CURRENT, (A)
AVERAGE FORWARD
CURRENT, (A)
1.0
60Hz Resistive or
Inductive Load
T
J
= 150
°C
Single Sine-Wave
0
0
25
50
75
100
125
150
175
1
2
4
6
10
20
40
60
100
AMBIENT TEMPERATURE, (
°
C)
NUMBER OF CYCLES AT 60Hz
FIG.3 - TYPICAL FORWARD CHARACTERISTICS
PER LEG
FIG.4 - TYPICAL REVERSE LEAKAGE
CHARACTERISTICS PER LEG
50
INSTANTANEOUS FORWARD
CURRENT, (A)
10
INSTANTANEOUS REVERSE
CURRENT, (µA)
100
10
T
J
= 100
°C
1.0
1.0
T
J
= 25 °C
Pulse width = 300 µs
1% Duty Cycle
0.1
T
J
= 25
°C
0.1
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
0.01
0
20
40
60
80
100
FORWARD VOLTAGE, (V)
PERCENT OF RATED REVERSE
VOLTAGE, (%)
Page 2 of 2
Rev. 01 : February 15, 2006
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