Fairchild Semiconductor KBU4M, KBU4K, KBU4J, KBU4D, KBU4B Datasheet
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KBU4A - KBU4M
KBU4A - KBU4M
Discrete POWER & Signal
Technologies
0.935(23.7)
–
0.895(22.7)
+
+
~
0.085(2.2)
0.065(1.7)
45°
0.455(11.3)
~
+
0.405(10.3)
Features
• High surge current capability .
• Reliable construction technique.
0.0760(19.3)
MAX
0.16(4.1)
0.14(3.6)
0.70(17.8)
0.66(16.8)
• Ideal for printed circuit board.
KBU
4.0 Ampere Silicon Bridge Rectifiers
Absolute Maximum Ratings* T
= 25°C unless otherwise noted
A
1.0(2.54)
MIN
0.220(5.6)
0.180(4.6)
Dimensions are in: inches (mm)
0.260(6.8)
0.180(4.5)
0.052(1.3)
0.048(1.2)
Symbol Parameter Value Units
I
O
i
f(surge)
P
D
R
θ
JA
R
θ
JL
T
stg
T
J
Average Rectified Current
@ T
= 50°C
A
4.0 A
Peak Forward Surge Current 200 A
Total Device Dissipation
Derate above 25°C
Thermal Resistance , Junction to Ambient,** per leg 19
Thermal Resistance, Junction to Lead,** per leg 4.0
6.6
53
mW/°C
C/W
°
C/W
°
Storage Temperature Range -55 to +150
Operating Junction Temperature -55 to +150
W
C
°
C
°
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
**Device mounted on PCB with 0.375 " (9.5 mm) lead length and 0.5 x 0.5" (13 x 13 mm) copper pads.
0.280(7.1)
0.260(6.6)
0.165(4.2)
0.150(3.8)
Electrical Characteristics T
= 25°C unless otherwise noted
A
Parameter Device Units
4A 4B 4D 4G 4J 4K 4M
Peak Repetitive Reverse Voltage 50 100 200 400 600 800 1000 V
Maximum RMS Bridge Input Vol tage 35 70 140 280 420 560 700 V
DC Reverse Voltage (Rated VR)
Maximum Reverse Leakage,
total bridge @ rated V
RTA
T
= 25°C
= 100°C
A
Maximum Forward Voltage Drop,
per bridge @ 4.0 A 1.0 V
1998 Fairchild Semiconductor Corporation
50 100 200 400 600 800 1000 V
5.0
500
µ
A
µ
A
KBU4A-KBU4M, Rev. A
T ypical Characteristics
KBU4A - KBU4M
Silicon Bridge Rectifiers
(continued)
Forward Current Deratin g Curve
5
4
3
SINGLE PHASE
HALF WAVE
2
60HZ
RESISTIVE OR
INDUCTIVE LOAD
1
.375" 9.0 mm LEAD
FORWAR D CURRENT (A)
LENGTHS
0
0 50 100 150
AMBIENT TEMPERATU RE ( C)
º
Non-Repetitive Surge Current
200
175
150
125
100
75
50
25
FORWAR D SU R GE CUR RE N T (A )
0
12 51020 50100
NUMBER O F CYCLES AT 60 Hz
Forward Charact eristics
100
10
1
º
º
T = 25 C
T = 25 C
J
FORWAR D CURR ENT (A)
0.1
0.6 0.7 0.8 0.9 1 1.1 1.2 1.3
A
Pulse Width = 300µS
2% Duty Cycle
FORWAR D VO LTA GE (V)
Reverse Characteristics
100
T = 100 C
º
µ
10
1
REVERSE CURRENT ( A)
0.1
0 20 40 60 80 100 120 140
PERCENT OF RA TED PEAK REVER SE VO L TAGE (%)
A
T = 25 C
º
A
KBU4A-KBU4M, Rev. A
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