LESHAN RADIO COMPANY, LTD.
Bridge rectifiers
Feature
．Plastic Package has Underwriters Laboratory
G BU4A Thru G BU4M
Flammability Classification 94V-0
．This series is UL listed under the Recognized
Component index,file number E231047
．Single-in-line package
．High current capality with small package
．Superior thermal conductivity
．High temperature soldering guaranted:
260℃/10 seconds
．High IFSM
． We declare that the material of product
compliance with RoHS requirements.
Product Characteristic
Item
Symbol GBU4A
VRM
Maximum repetitive voltage
Maximum DC reverse current TA=25℃
at rated DC blocking voltage TA=125℃
Average recified forward current 60Hz sine
(1)(2)
50
IR
sine-wave superimposed on rated load
Dielectric strength Terminals to case,
AC 1 minute Current 1mA
Maximum instantaneous forward voltage at 2A
Operating junction temperature
Storage temperature
GBU4D
GBU4G
GBU4J
100
200
400
5
500
600
GBU4K GBU4M Unit
800
1000
V
μA
Io
4(1)
3(2)
A
IFSM
150
A
Vdia
2.5
KV
VF
Tj
Tstg
1
150
-55~150
℃
℃
wave,R-load with heatsink Tc=100℃
Peak forward surge current8.3 ms single half
GBU4B
Notes：(1)Unit case mounted on Al plate heat-sink
V
(2) Unites mounted on P.C.B. without heat-sink
(3)Recommended mounting position is to bolt down on heatsink with silicone thermal compound for maximum heat
transfer with #6 screw{heat-sink size:6.5*3.5*0.15cm)
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LESHAN RADIO COMPANY, LTD.
Characteristic Curves
Average Rectified Forward Current Io(A)
Fig. 1 Derating Curve
Case Temperature Tc( ℃)
Instantaneous Reverse Current Microamperes
Fig.2 Typical Reverse Characteristics
Percent of Rated Peak Reverse Voltage
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LESHAN RADIO COMPANY, LTD.
Peak Surge Forward Current IFSM(A)
Fig.3 Peak Surge Forward capability
Number of Cycles at 60 Hz(cycles)
Forward Current IF(A)
Fig.4 Forward Voltage
Forward Voltage V F(V)
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LESHAN RADIO COMPANY, LTD.
SHAPE AND DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.
2. CONTROLLING DIMENSION: mm.
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