TRSYS BY254 Medium current plastic rectifier Datasheet

BY251 THRU BY255
MEDIUM CURRENT PLASTIC RECTIFIER
VOLTAGE - 200 to 1300 Volts CURRENT - 3.0 Amperes
FEATURES
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High surge current capability
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Plastic package has Underwriters Laboratory
DO-201AD
Flammability Classification 94V-O
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Low leakage
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Void-free molded in DO-201AD plastic package
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High current operation of 3 Amperes at TA=95
with no thermal runaway
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Exceeds environmental standards of MIL-S-19500/228
MECHANICAL DATA
Case: JEDEC DO-201AD Molded plastic
Terminals: Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity: Color band denotes cathode
Mounting Position: Any
Weight: 0.04 ounce, 1.1 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
Current .375"(9.5mm) Lead Length at
TA=95
Peak Forward Surge Current 8.3ms single
half sine-wave superimposed on rated load
(JEDEC method)
Maximum Instantaneous Forward Voltage TJ=25
at 3.0A
TJ=100
Maximum DC Reverse Current TA=25
at Rated DC Blocking Voltage TA=100
Typical Junction capacitance (Note 2) TJ=25
Typical Reverse Recovery Time (Note 3)
Typical Thermal Resistance (Note 1)
Operating Junction Temperature Range
Storage Temperature Range
SYMBOLS
BY251
BY252
BY253
BY254
BY255
VRRM
VRMS
VDC
I(AV)
200
140
200
400
280
400
600
420
600
3.0
800
560
800
1300
910
1300
UNITS
Volts
Volts
Volts
Amps
IFSM
100.0
Amps
VF
1.1
1.0
5.0
1000
40
2.5
15.0
-50 to +150
-50 to +150
Volts
Volts
A
A
PF
A
/W
IR
CJ
TRR
R JA
TJ
TSTG
NOTES:
1. Thermal Resistance From Junction to applied at Ambient 0.375"(9.5mm) lead length P.C.Board mounted.
2. Measured at 1 MHz and applied reverse voltage of 4.0 volts.
3. Reverse Recovery Test Conditions: IF=0.5A, IR=1.0A, Irr=0.25A.
RATING AND CHARACTERISTIC CURVES BY251 THRU BY255
Fig. 1-FORWARD CURRENT DERATING CURVE
Fig. 2-MAXIMUM PEAK FORWARD
SURGE CURRENT
Fig. 3-TYPICAL INSTANTANEOUS FORWARD
Fig. 4-TYPICAL JUNCTION CHARACTERISTICS
CHARACTERISTICS
Fig. 5-TYPICAL REVERSE CHARACTERISTICS
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