BY550-50 THRU BY550-1000
Features
Mechanical Data
· Low cost
· Diffused junction
· High current capability
· The plastic material carries U/L recognition 94V-0
Maximum Ratings And Electrical Characteristics
· Case : JEDEC DO-201AD molded plastic body
· Terminals : Plated axial lead solderable per MIL-STD-750,
method 2026
· Polarity : Color band denotes cathode end
· Mounting Position : Any
· Weight : 0.042 ounce, 1.1 grams
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
Notes:
(1) Measured at 1MHz and applied reverse voltage of 4.0V DC.
CURRENT 5.0 Amperes
VOLTAGE 50 to 1000 Volts
Maximum recurrent peak reverse voltage
Volts
Peak forward surge current 8.3ms half sine
wave superimposed on rated load
Maximum average forward rectified current
at TA=60℃
Maximum instantaneous forward voltage
at 5.0A
VRRM 50 Volts
Symbols BY550
-50 Units
1.1VF
5.0
Amps300.0IFSM
TJ
TSTG -65 to +150 ℃
Maximum reverse current at rated DC
blocking voltage
Typical thermal resistance
Operating and storage temperature range
BY550
-100 BY550
-400 BY550
-600
20.0
30.0
100 400 600
μA
℃/W
I(AV)
IR
RθJA
Recurrent peak Forward Current Amps
Amps
60.0IFRM
BY550
-800
800
BY550
-200
200
BY550
-1000
1000
Dimensions in inches and (millimeters)
DO-201AD
1.0(25.4)
MIN.
1.0(25.4)
MIN.
0.375(9.5)
0.285(7.2)
0.042(1.1)
0.037(0.9)
DIA.
0.210(5.3)
0.188(4.8)
DIA.
FIG.1-FORWARD CURRENT DERATING CURVE
1000 25 1751501257550
8
7
0
2
1
6
4
5
3
LEAD TEMPERATURE ( ℃)
AVERAGE FORWARD CURRENT AMPERES
R-Load
C-Load
10mm
10mm
FIG.3-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
NUMBER OF CYCLES AT 50Hz
PERMISSIBLE SURGE CURRENT(A)
101 1002042
100
20
40
200
400
1000
TJ=25℃
I
FM
1 Cycle
TJ=25℃
FIG.2-TYPICAL FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT(AMPERES)
Typ.values
10
100
10000
1000
100000
1
1.30.5 0.7 1.51.10.90.1 0.3
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
FIG.4-TYPICAL THERMAL RESISTANCE
L, LEAD LENGTH (mm)
R
0JA
THERMAL RESISTANCE JUNCTION AMBIENT(℃/W)
250 5 30201510
0
10
30
20
50
40
Typ
LL
Max
RATINGS AND CHARACTERISTIC CURVES BY550-50 THRU BY550-1000
