BY251-BY255 N0552 REV.A

BY251-BY255
Green Products
Technical Data
Data Sheet N0552, Rev. A
BY251 THRU BY255
GENERAL PURPOSE SILICON RECTIFIER
Reverse Voltage - 200 to 1300 Volts Forward Current - 3.0 Ampere
FEATURES
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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: 260℃ /10 seconds,0.375”(9.5mm) lead length,
5 lbs. (2.3kg) tension
MECHANICAL DATA
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Case: 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
MECHANICAL DIMENSIONS: In Inches/mm
DO-201AD
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BY251-BY255
Green Products
Technical Data
Data Sheet N0552, Rev. A
MARKING DIAGRAM
BY251
= Part Name
Cautions:Molding resin
Epoxy resin UL:94V-0
ORDERING INFORMATION
Device
Package
DO-201AD
(Pb-Free)
BY251-BY255
Shipping
1250pcs / tape
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification.
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%.
Characteristic
Symbol
BY251
BY252
BY253
Maximum repetitive peak reverse voltage
Maximum DC blocking voltage
VRRM
VDC
200
400
600
800
1300
V
Maximum RMS voltage
VRMS
140
280
420
560
910
V
Maximum average forward rectified current
0.375”(9.5mm) lead length at @TA = 75°C
I(AV)
3.0
A
Peak forward surge current 8.3ms single half
sine-wave superimposed on rated load (JEDEC
Method)
IFSM
150
A
Maximum instantaneous forward voltage at 3.0A
VF
1.1
V
Maximum DC reverse current
At Rated DC Blocking Voltage
IR
10.0
500
µA
CJ
30.0
pF
RθJA
20.0
°C/W
TJ, TSTG
-65 to +175
°C
@TA = 25°C
@TA = 100°C
Typical Junction Capacitance (Note 1)
Typical Thermal Resistance (Note 2)
Operating junction and storage temperature
range
BY254 BY255 Unit
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
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BY251-BY255
Technical Data
Data Sheet N0552, Rev. A
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Green Products
BY251-BY255
Technical Data
Data Sheet N0552, Rev. A
Green Products
DISCLAIMER:
1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product
characteristics. Before ordering, purchasers are advised to contact the SMC - Sangdest Microelectronics (Nanjing) Co., Ltd sales
department for the latest version of the datasheet(s).
2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,
medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by
means of users’ fail-safe precautions or other arrangement .
3- In no event shall SMC - Sangdest Microelectronics (Nanjing) Co., Ltd be liable for any damages that may result from an accident or
any other cause during operation of the user’s units according to the datasheet(s). SMC - Sangdest Microelectronics (Nanjing) Co., Ltd
assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information,
products or circuits described in the datasheets.
4- In no event shall SMC - Sangdest Microelectronics (Nanjing) Co., Ltd be liable for any failure in a semiconductor device or any
secondary damage resulting from use at a value exceeding the absolute maximum rating.
5- No license is granted by the datasheet(s) under any patents or other rights of any third party or SMC - Sangdest Microelectronics
(Nanjing) Co., Ltd.
6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of SMC
- Sangdest Microelectronics (Nanjing) Co., Ltd.
7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will
hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third
party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and
regulations..
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