BY251G-BY255G
200V-1300V
GLASS PASSIVATED GENERAL PURPOSE RECTIFIERS
3.0A
FEATURES
The plastic package carries Underwriters Laboratory
Flammability Classification 94V-0
Construction utilizes void-free
molded plastic technique
Low reverse leakage
High forward surge current capability
High temperature soldering guaranteed:
250 C/10 seconds,0.375
”
(9.5mm) lead length,
5 lbs. (2.3kg) tension
MECHANICAL DATA
Case:
JEDEC DO-201AD molded plastic body
Terminals:
Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity:
Color band denotes cathode end
Mounting Position:
Any
W
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
Single phase half-wave 60Hz,resistive or inductive load,for capacitive load current derate by 20%.
SYMBOLS
BY251G
BY252G
BY253G
BY254G
BY255G
UNITS
VOLTS
VOLTS
VOLTS
Amps
Amps
Volts
µ
A
pF
C/W
C
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375”(9.5mm) lead length at T
A
=75 C
Peak forward surge current
8.3ms single half sine-wave superimposed on
rated load (JEDEC Method)
Maximum instantaneous forward voltage at 3.0A
Maximum DC reverse current
T
A
=25 C
at rated DC blocking voltage
T
A
=100 C
Typical junction capacitance (NOTE 1)
Typical thermal resistance (NOTE 2)
Operating junction and storage temperature range
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
C
J
R
θ
JA
T
J
,
T
STG
200
140
200
400
280
400
600
420
600
3.0
150
1.1
10.0
500
30.0
20.0
-65 to +175
800
560
800
1300
910
1300
Note:1.Measured
at 1MHz and applied reverse voltage of 4.0V D.C.
2.Thermal resistance from junction to ambient at 0.375”(9.5mm)lead length,P.C.B. mounted
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Web Site: www.taychipst.com
BY251G-BY255G
200V-1300V
GLASS PASSIVATED GENERAL PURPOSE RECTIFIERS
3.0A
RATINGS AND CHARACTERISTIC CURVES BY251G THRU BY255G
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
PEAK FORWARD SURGE CURRENT,
AMPERES
FIG. 1- FORWARD CURRENT DERATING CURVE
3.0
FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
150
2.4
125
1.8
100
1.2
Single Phase
Half Wave 60Hz
Resistive or
inductive Load
75
0.6
50
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
0
0
25
50
75
100
125
150
175
25
1
10
100
AMBIENT TEMPERATURE, C
NUMBER OF CYCLES AT 60 Hz
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
FIG. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
1,000
INSTANTANEOUS FORWARD
CURRENT,AMPERES
20
10
100
TJ=150 C
1
10
TJ=100 C
1
0.1
T
J
=25 C
PULSE WIDTH=300
µs
1%DUTY CYCLE
0.01
0.1
TJ=25 C
0.01
0.6
0.8
1.0
1.2
1.4
1.5
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
0
20
40
60
80
100
PERCENT OF PEAK REVERSE VOLTAGE,%
FIG. 5-TYPICAL JUNCTION CAPACITANCE
TRANSIENT THERMAL IMPEDANCE,
C/W
FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE
100
JUNCTION CAPACITANCE, pF
200
100
T
J
=25 C
10
10
1
0.1
1
0.01
0.1
1
10
100
0.1
1.0
10
100
REVERSE VOLTAGE,VOLTS
t,PULSE DURATION,sec.
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Web Site: www.taychipst.com
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