BY251 Datasheet, PDF (1/2 Pages) Pan Jit International Inc. – MEDIUM CURRENT PLASTIC RECTIFIER(VOLTAGE - 200 to 1300 Volts CURRENT - 3.0 Amperes)

BY251 THRU BY255
GENERAL PURPOSE SILICON RECTIFIER
Reverse Voltage - 200 to 1300 Volts Forward Current - 3.0 Ampere
DO-201AD
0.220 (5.6)
0.197(5.0)
DIA.
1.0 (25.4)
MIN.
0.375(9.5)
0.285(7.2)
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
0.052 (1.3)
0.048 (1.2)
DIA.
1.0 (25.4)
MIN.
Dimensions in inches and (millimeters)
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
Weight:0.04 ounce, 1.10 grams
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%.
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375”(9.5mm) lead length at TA=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 TA=25 C
at rated DC blocking voltage TA=100 C
Typical junction capacitance (NOTE 1)
Typical thermal resistance (NOTE 2)
Operating junction and storage temperature range
SYMBOLS
VRRM
VRMS
VDC
I(AV)
BY251
200
140
200
BY252
400
280
400
BY253
600
420
600
3.0
BY254
800
560
800
IFSM
VF
IR
CJ
RqJA
TJ,TSTG
150
1.1
10.0
500
30.0
20.0
-65 to +175
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
BY255
1300
910
1300
UNITS
VOLTS
VOLTS
VOLTS
Amps
Amps
Volts
uA
pF
C/W
C
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