GBU8A - GBU8M — Bridge Rectifiers
© 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com
GBU8A - GBU8M Rev. A7 1
February 2012
GBU8A - GBU8M
Bridge Rectifiers
Features
• Glass passivated junction
• Surge overload rating: 200 amperes peak
• Reliable low cost construction utilizing mold ed plastic technique.
• Ideal for printed circuit board.
• UL certified, UL # E326243.
Absolute Maximum Ratings Ta = 25°C unless otherwise noted
* Device mounted on PCB with 0.5 × 0.5” (12 × 12mm).
** Heat-sink mounting, 4"x4"x0.15" Copper plate
Thermal Characteristics
* Device mounted on PCB with 0.5 × 0.5” (12 × 12mm).
** Heat-sink mounting, 4"x4"x0.15" Copper plate
Electrical Characteristics Ta = 25°C unless otherwise noted
Symbol Parameter Value Units
8A 8B 8D 8G 8J 8K 8M
VRRM Maximum Repetitive Reverse V oltage 50 100 200 400 600 800 1000 V
VRMS Maximum RMS Bridge Input Voltage 35 70 140 280 420 560 700 V
VRDC Reverse Voltage (Rated VR) 50 100 200 400 600 800 1000 V
IF(AV)
Average Recitified Forward Current,
@ Tc = 100°C**
@ Ta = 45°C* 8.0
6.0 A
A
IFSM Non-Repetitive Peak Forward Surge Current
8.3ms Single Half-Sine-Wave 200 A
TSTG Storage Temperature Range -55 to +150 °C
TJOperating Junction Te mperature -55 to +150 °C
Symbol Parameter Value Units
PDPower Dissipation 16 W
RθJA Thermal Resistance, Junction to Ambient, * per leg 18 °C/W
RθJC Thermal Resistance, Junction to Case, ** per leg 3 °C/W
Symbol Parameter Value Units
VFForward Voltage, per element @ 8.0A 1.0 V
IRReverse Current, per element @ Rated VR
Ta = 25°C
Ta = 100°C5.0
500 μA
μA
I2t Rating for Fusing t < 8.35ms 166 A2s
+~~-
GBU
GBU8A - GBU8M — Bridge Rectifiers
© 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com
GBU8A - GBU8M Rev. A7 2
Typical Performance Characteristics
Figure 1. Forward Current Derating Curve Figure 2. Forward Voltage Characteristics
Figure 3. Reverse Current vs Reverse Voltage Figure 4. Non-Repetitive Surge Current
Figure 5. Total Capacitance
Average Rectified Forward Current, IF [A]
Ambient Temperature [ºC]
0 50 100 150
0
2
4
6
8
MOUNTED ON PC BOARD,
TA 0.5" (12.7mm) LEAD LENGTH
60Hz RESISTIVE OF INDUCTIVE LOAD
HEAT-SINK
MOUNTING, TC
4"x4"x0.15"
COPPER PLATE
0.7 0.8 0.9 1 1.1 1.2 1.3 1.4
0.1
1
10
100
Forward Voltage, VF [V]
Forward Current, IF [A]
T = 25 C
º
A
Pulse Width = 300μ
μμ
μs
1% Duty Cycle
0 20406080100120140
0.01
0.1
1
10
Percent of Rated Peak Reverse Voltage [%]
Reverse Current, IR [mA]
T = 100 C
º
C
T = 25 C
º
A
110100
0
50
100
150
200
250
Peak. Forward Surge Current, IFSM[A]
Number of Cycles at 60Hz
Tj=150°C
8.3ms Single Half Sine-Wave
1 5 10 50 100
10
50
100
400
Reverse Voltage, VR [V]
Total Capacitance, CT [pF]
T = 25 C
º
A
f = 1.0 MHz
Visg = 50m Vp-p
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