by251-by255_diody_wzbudzania.pdf

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BY251 THRU BY255
GENERAL PURPOSE PLASTIC RECTIFIER
Reverse Voltage - 200 to 1300 Volts
Forward Current - 3.0 Amperes
Features
Low cost
Diffused junction
High current capability
The plastic material carries U/L recognition 94V-0
Terminals: Axial leads
Polarity: Color band denotes cathode
Mounting Instruction
Min. distance from body to soldering point, 4mm
Max. solder temperature, 350
Max. soldering time: 3.5 Sec.
Do not bend lead at a point closer than 3mm to the body
DIMENSIONS
inches
mm
DIM
Note
Min.
Max.
Min.
Max.
A
0.283
0.374
7.20
9.50
B
0.189
0.208
4.80
5.30
C
0.048
0.051
1.20
1.30
D
1.000
-
25.40
-
Maximum Ratings and Electrical Characteristics
Symbols
BY251
BY252
BY253
BY254
BY255
Units
Peak repetitive reverse voltage
V RRM
200
400
600
800
1300
Volts
Forward current at T amb =50
I (AV)
3.0
Amps
8.3mS peak forward surge current
I FSM
100.0
Amps
Recurrent peak forward current
I FRM
20.0
Amps
Maximum forward voltage drop at I F =3.0A
V F
1.1
Volts
Maximum reverse current at V RRM
I R
10.0
A
Maximum thermal resistance (I=10mm)
R JA
30.0
/W
Operating and storage temperature range
T J , T STG
-65 to +150
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RATINGS AND CHARACTERISTIC CURVES
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