BY251 Datasheet, PDF (1/4 Pages) Pan Jit International Inc. – MEDIUM CURRENT PLASTIC RECTIFIER(VOLTAGE - 200 to 1300 Volts CURRENT - 3.0 Amperes)

BY251 THRU BY255
DO-27 Plastic-Encapsulate Diodes
Features
●Io
3.0A
●VRRM
200V-1300V
●High surge current capability
●Polarity: Color band denotes cathode
Applications
● Rectifier
Marking
● BY25X
X:From 1 to 5
DO-27
Item
Repetitive Peak Reverse Voltage
Maximum RMS Voltage
Average Forward Current
Surge(Non-repetitive)Forward
Current
Junction Temperature
Storage Temperature
Symbol
VRRM
V_RMS
IF(AV)
Unit
Conditions
251
V
200
V
140
A
60Hz Half-sine wave, Resistance
load, Ta=50℃
IFSM
A
60Hz Half-sine wave,1 cycle,
Ta=25℃
Tj
℃
Tstg
℃
BY
252 ²⁵³
254
400
600 800
280
420 560
3
100
-55~+125
-55 ~ +150
255
1300
910
Item
Peak Forward Voltage
Peak Reverse Current
Thermal
Resistance(Typical)
Symbol
V_FM
I_RRM1
I_RRM2
R_θJ-A
R_θJ-L
Unit
V
μA
℃/W
Test Condition
I_FM=3.0A
VRM=VRRM
Ta=25℃
Ta=125℃
Between junction and ambient
Between junction and lead
Max
1.1
5
50
20
10
High Diode Semiconductor
1