EIC BY255

BY251 - BY255
SILICON RECTIFIER DIODES
DO - 201AD
PRV : 200 - 1300 Volts
Io : 3.0 Amperes
*
*
*
*
*
*
1.00 (25.4)
MIN.
0.21 (5.33)
0.19 (4.83)
FEATURES :
High current capability
High surge current capability
High reliability
Low reverse current
Low forward voltage drop
Pb / RoHS Free
0.375 (9.53)
0.285 (7.24)
1.00 (25.4)
MIN.
0.052 (1.32)
0.048 (1.22)
MECHANICAL DATA :
* Case : DO-201AD Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
Method 208 guaranteed
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.929 grams
Dimensions in inches and ( millimeters )
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25 °C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
RATING
SYMBOL
BY251
BY252
BY253
BY254
BY255
UNIT
Maximum Repetitive Peak Reverse Voltage
VRRM
200
400
600
800
1300
V
Maximum RMS Voltage
VRMS
140
280
420
560
910
V
Maximum DC Blocking Voltage
VDC
200
400
600
800
1300
V
Maximum Average Forward Current
IF
3.0
A
IFSM
100
A
VF
1.1
V
IR
20
µA
IR(H)
50
µA
CJ
50
pF
RθJA
18
°C/W
Junction Temperature Range
TJ
- 65 to + 175
°C
Storage Temperature Range
TSTG
- 65 to + 175
°C
0.375"(9.5mm) Lead Length Ta = 50 °C
Peak Forward Surge Current
8.3ms Single half sine wave Superimposed
on rated load (JEDEC Method)
Maximum Forward Voltage at IF = 3.0 Amps.
Ta = 25 °C
Maximum DC Reverse Current
at rated DC Blocking Voltage
Ta = 100 °C
Typical Junction Capacitance (Note1)
Typical Thermal Resistance (Note2)
Notes :
(1) Measured at 1.0 MHz and applied reverse voltage of 4.0V DC
(2) Thermal resistance from Junction to Ambient at 0.375" (9.5mm) Lead Lengths, P.C. Board Mounted.
Page 1 of 2
Rev. 02 : March 25, 2005
RATING AND CHARACTERISTIC CURVES ( BY251 - BY255 )
FIG.1 - DERATING CURVE FOR OUTPUT
RECTIFIED CURRENT
FIG.2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
100
PEAK FORWARD SURGE
CURRENT, AMPERES
AVERAGE FORWARD OUTPUT
CURRENT, AMPERES
3.0
2.4
1.8
1.2
0.6
Ta = 25 °C
80
60
40
20
NON-REPETITIVE
0
0
25
50
75
100
125
150
0
175
1
2
AMBIENT TEMPERATURE, ( ° C)
100
10
Pulse W idth = 300 µs
2% Duty Cycle
T J = 25 °C
10
20
40
60
100
100
T J = 25 °C
50
10
5
1
1
2
4
10
20
40
100
REVERSE VOLTAGE, VOLTS
0.1
0.01
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
FORWARD VOLTAGE, VOLTS
2.0
REVERSE CURRENT, MICROAMPERES
FORWARD CURRENT, AMPERES
6
FIG 4 . - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE,
(pF)
FIG.3 - TYPICAL FORWARD CHARACTERISTICS
1.0
4
NUMBER OF CYCLES AT 60Hz
FIG. 5 - TYPICAL REVERSE CHARACTERISTICS
10
Ta = 100 °C
1.0
0.1
Ta = 25 °C
0.01
0
20
40
60
80
100
120
140
PERCENT OF RATED REVERSE
VOLTAGE, (%)
Page 2 of 2
Rev. 02 : March 25, 2005