BY255 1 of 4 © 2006 Won-Top Electronics
Pb
BY255
3.0A HIGH VOLTAGE STANDARD DIODE
Features
!" Diffused Junction
!" Low Forward Voltage Drop
!" High Current Capability A B A
!" High Reliability
!" High Surge Current Capability
Mechanical Data C
!" Case: DO-201AD, Molded Plastic D
!" Terminals: Plated Leads Solderable per
MIL-STD- 202, Met hod 208
!" Polarity: Cathode Band
!" Weight: 1.2 grams (approx.)
!" Mounting Pos it ion : An y
!" Marking: Type Number
!" Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 4
Maximum Ratings and Electrical Characteristics @TA=25°C unless otherwise specified
Single Phase, half wave, 60Hz, resistive or inductive load.
For capaciti ve load, derate current by 20%.
Characteristic Symbol BY255 Unit
Peak Repetitive Revers e Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR 1300 V
RMS Reverse Voltage VR(RMS) 910 V
Average Rectified Output Current
(Note 1) @T
A = 75°C IO 3.0 A
Non-Repetiti ve Peak Forward Surge Current
8.3ms Single half sine-wave superimposed on
rated load (JEDEC Method) IFSM 200 A
Forward Voltage @IF = 3 .0A VFM 1.0 V
Peak Reverse Current @T
A = 25°C
At Rated DC Blocking Voltage @TA = 100°C IRM 5.0
100 µA
Typi cal Junction Capacitance (Note 2) Cj 50 pF
Typical Thermal Resistance Junction to Ambient
(Note 1) RθJA 20 °C/W
Operating Temperature Range Tj -65 to +125 °C
Storage Temperature Range TSTG -65 to +150 °C
Note: 1. Leads maintained at ambi ent temperature at a distance of 9.5mm from the case
2. Measured at 1.0 MHz and Applied Reverse Voltage of 4.0V D.C.
WTE
POWER SEMI C O NDUC TOR S
DO-201AD
Dim Min Max
A 25.4 —
B 7.20 9.50
C 1.20 1.30
D 4.80 5.30
All Dimensions in mm
BY255 2 of 4 © 2006 Won-Top Electronics
0
1.0
2.0
3.0
T , AMBIENT TEMPERATURE (°C)
Fig. 1 Forward Current Derating Curve
A
I , AVERA
G
EF
O
RWARD CURRENT (A)
(AV)
4.0
25 50 75 100 125 150 175 20
0
0.2
1.0
10
100
200
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.
2
I,IN
S
TANTANE
O
U
S
FORWARD CURRENT (A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
F
T=25ºC
j
1.0 10 100
NUMBER OF CYCLES AT 60Hz
Fig. 3 Maximum Non-Repetitive Surge Current
10
100
200
Tj = 25°C
Pulse width = 300µs
I , PEAK F
O
RWARD
S
UR
G
E
C
URRENT
(
A
)
FSM
1.0
10
100
1.0 10 10
0
C
,
C
APACITANCE(pF)
j
V , REVERSE VOLTAGE (V)
Fig. 4 Typical Junction Capacitance
R
f = 1MHz
T = 25ºC
j
BY255 3 of 4 © 2006 Won-Top Electronics
MARKING INFORMATION
TAPING SPECIFICATIONS
PACKAGING INFORMATION
Packaging Reel Diameter /
Box Size (mm) Quantity
(PCS) Carton Size
(mm) Quantity
(PCS) Approx. Gross Weight
(KG)
TAPE & REEL 330 1,200 370 x 370 x 420 6,000 10.0
TAPE & BOX 255 x 75 x 150 1,200 400 x 273 x 415 12,000 17.0
BULK 200 x 85 x 40 500 459 x 214 x 256 12,500 16.0
Note: 1. Paper reel, white or gray color . Core material: plastic or metal.
2. Components are packed in accordance with EIA standard RS-296-E.
TAPE & REEL
Cathode = Polarity Band
BY255 = Device Number
WTE = Manufac turer’s Logo
BY255
WTE
0.8mm
MAX
10mm
1.2mm
MAX
0.8mm
MAX
6mm 52.4mm
Cathode Tape: Red
Anode Tape: White
330mm
Product ID Label
Inspection Hole
(both ends)
80±5mm
TAPE & BOX
255mm
Product ID Label
150mm
75mm
BULK
200mm
85mm
40mm
BY255 4 of 4 © 2006 Won-Top Electronics
ORDERING INFORMATION
Product No. Package Type Shipping Quantity
BY255-T3 DO-201AD 1200/Tape & Reel
BY255-TB DO-201AD 1200/Tape & Box
BY255 DO-201AD 500 Units/Box
1. Products listed in bold are WTE Preferred devices.
2. Shipping quantity given is for minimum packing quantity only. For minimum
order quantity, please consult the Sales Department.
3. To or d er RoHS / Lead Fre e ver si on ( wi t h Lea d Fr ee finish), ad d “-L F”
suffix to part number above. For example, BY255-TB-LF.
Won-Top Electronics Co., Ltd (WTE) has checked all information carefully and believes it to be correct and accurate. However , WTE cannot assume any
responsibility for inaccuracies. Furthermore, this information does not give the purchaser of semiconductor devices any license under patent rights to
manufacturer . WTE reserves the right to change any or all information herein without further notice.
WARNING: DO NOT USE IN LIFE SUPPORT EQUIPMENT. WTE power semiconductor products are not authorized for use as critical components in life
support devices or systems without the express written approval.
We power your everyday.
Won-Top Electronics Co., Ltd.
No. 44 Yu Kang North 3rd Road, Chine Chen Dist., Kaohsiung, Taiwan
Phone: 886-7-822-5408 or 886-7-822-5410
Fax: 886-7-822-5417
Email: sales@wontop.com
Internet: http://www. wont op.com
