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FEATURES
Low leakage
GALAXY ELECTRICAL
BY550-50 --- BY550-1000
VOLTAGE RANGE: 50 --- 1000 V
CURRENT: 5.0 A
PLASTIC SILICON RECTIFIER
Low cost
Diffused junction
Low forward voltage drop
High current capability
Easily cleaned witn Freon,Alcohol,lsopropanol
and similar solvents
The plastic material carries U/L recognition 94V-0
DO - 27
MECHANICAL DATA
Case:JEDEC DO-27,molded plastic
Terminals: Axial lead ,solderable per
MIL- STD-202,Method 208
Polarity: Color band denotes cathode
Weight: 0.041 ounces, 1.15 grams
Mounting position: Any
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
BY
550-50
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
9.5mm lead length,
@T
A
=75
BY
BY
BY
BY
BY
BY
UNITS
550-100 550-200 550-400 550-600 550-800 550-1000
100
70
100
200
140
200
400
280
400
5.0
600
420
600
800
560
800
1000
700
1000
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
50
35
50
Peak forw ard surge current
8.3ms single half-sine-w ave
superimposed on rated load
@T
J
=125
I
FSM
300.0
A
Maximum instantaneous forw ard voltage
@
5.0
A
Maximum reverse current
@T
A
=25
V
F
I
R
C
J
R
θ
JA
T
J
T
STG
1.1
10.0
100.0
80
15
- 55 ---- + 150
- 55 ---- + 150
V
A
pF
／Ｗ
at rated DC blocking voltage @T
A
=100
Typical junction capacitance
Typical thermal resistance
(Note1)
(Note2)
Operating junction temperature range
Storage temperature range
2. Thermal resistance f rom junction to ambient.
NOTE: 1. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC.
www.galaxycn.com
Document Number 0260031
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
FIG.1 -- TYPICAL FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT
10
BY550-50 --- BY550-1000
FIG.2 -- TYPICAL FORWARD DERATING CURVE
AVERAGE FORWARD CURRENT
AMPERES
1.5
1.25
1.0
1.0
AMPERES
0.1
T
J
=25 C
Pulse Width
=300us
0
0.75
0.5
Single Phase
Half Wave 60H
Z
Resistive or
Inductive Load
0.25
.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
25
50
75
100 125
150
175
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
AMBIENT TEMPERATURE,
FIG.3 -- PEAK FORWARD SURGE CURRENT
FIG.4--TYPICAL JUNCTION CAPACITANCE
PEAK FORWARD SURGE CURRENT
AMPERES
JUNCTION CAPACITANCE,
P
F
1000
600
400
450
400
350
300
250
200
150
100
50
1
2
4
8
10
20
40 60 80 100
T
J
=125
8.3ms Single Half
Sine-W
ave
T
J
=25
200
100
40
20
10
.1
.2
.4
1.0
2
4
10
20
40
1
00
NUMBER OF CYCLES AT 60Hz
REVERSE VOLTAGE,VOLTS
www.galaxycn.com
Document Number 0260031
BL
GALAXY ELECTRICAL
2.
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