KBU8A - KBU8M
KBU8A - KBU8M
Discrete POWER & Signal
Technologies
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)
–
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)
0.280(7.1)
0.260(6.6)
• Ideal for printed circuit board.
1.0(2.54)
KBU
8.0 Ampere Silicon Bridge Rectifiers
Absolute Maximum Ratings* T
= 25°C unless otherwise noted
A
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
8.0 A
Peak Forward Surge Current 300 A
Total Device Dissipation
Derate above 25°C
Thermal Resistance, Junction to Ambient,** per leg 18
Thermal Resistance, Junction to Lead,** per leg 3.0
6.9
55
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.
0.165(4.2)
0.150(3.8)
Electrical Characteristics T
= 25°C unless otherwise noted
A
Parameter Device Units
8A 8B 8D 8G 8J 8K 8M
Peak Repetitive Reverse Voltage 50 100 200 400 600 800 1000 V
Maximum RMS Bridge Input Voltage 35 70 140 280 420 560 700 V
DC Reverse Voltage (Rated VR)
Maximum Reverse Leakage,
total bridg e @ rated V
RTA
T
= 25°C
= 100°C
A
Maximum Forward Voltage Drop,
per bridge @ 8.0 A 1.0 V
1999 Fairchild Semiconductor Corporation
50 100 200 400 600 800 1000 V
10
500
A
µ
A
µ
KBU8A-KBU8M, Rev. A
T ypical Characteristics
KBU8A - KBU8M
Silicon Bridge Rectifiers
(continued)
Forward Current Derating Curve
8
6
SINGLE PHASE
4
HALF WAVE
60HZ
RESISTIV E OR
INDUCTIVE LOAD
2
.375" 9.0 mm LEAD
FORWAR D CU RRENT (A )
LENGTHS
0
050100150
AMBIENT TEMPERATURE ( C)
º
Non-Repetitive Surge Current
300
250
200
150
100
50
FORWARD SURGE C URRENT (A)
0
1 2 5 10 20 50 100
NUMBER OF CYCLES AT 60Hz
Forward Characteri stic s
100
10
1
T = 25 C
T = 25 C
º
º
J
FORWARD CU RRENT (A)
0.1
0.6 0.7 0.8 0.9 1 1.1 1.2 1.3
A
Pulse Widt h = 300µS
2% Duty Cy cle
FORWARD VO LT AGE (V)
Reverse Characteris tics
100
T = 100 C
º
µ
10
1
REVERSE CURRENT ( A)
0.1
0 20406080100120140
PERCENT OF RA TED PEAK REVER SE VOLTAGE (%)
A
T = 25 C
º
A
KBU8A-KBU8M, Rev. A