BY448 / BY458 Vishay Semiconductors Standard Avalanche Sinterglass Diode Features • • • • Glass passivated junction Hermetically sealed package e2 Lead (Pb)-free component Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC Applications High voltage rectification diode Efficiency diode in horizontal deflection circuits 949539 Mechanical Data Polarity: Color band denotes cathode end Mounting Position: Any Weight: approx. 369 mg Case: SOD-57 Sintered glass case Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Parts Table Part Type differentiation Package BY448 VR = 1500 V; IFAV = 2 A SOD-57 BY458 VR = 1200 V; IFAV = 2 A SOD-57 Absolute Maximum Ratings Tamb = 25 °C, unless otherwise specified Parameter Reverse voltage Peak forward surge current Test condition see electrical characteristics Part Symbol Value Unit BY448 VR = VRRM 1500 V BY458 VR = VRRM 1200 V IFSM 30 A tp = 10 ms, half sinewave Average forward current Junction temperature Storage temperature range Non repetitive reverse avalanche energy I(BR)R = 0.4 A IFAV 2 A Tj 140 °C Tstg - 55 to + 175 °C ER 10 mJ Maximum Thermal Resistance Tamb = 25 °C, unless otherwise specified Parameter Junction ambient Document Number 86006 Rev. 1.6, 14-Apr-05 Symbol Value Unit l = 10 mm, TL = constant Test condition RthJA 45 K/W on PC board with spacing 25 mm RthJA 100 K/W www.vishay.com 1 BY448 / BY458 Vishay Semiconductors Electrical Characteristics Tamb = 25 °C, unless otherwise specified Parameter Test condition Symbol Min Typ. Max Unit Forward voltage IF = 3 A VF 1.6 V Reverse current VR = VRRM IR 3 µA VR = VRRM, Tj = 140 °C IR 140 µA Total reverse recovery time IF = 1 A, - diF/dt = 0.05 A/µs trr 20 µs Reverse recovery time IF = 0.5 A, IR = 1 A, iR = 0,25 A trr 2 µs RthJA Therm. Resist. Junction/Ambient (K/W) Typical Characteristics (Tamb = 25 °C unless otherwise specified) 120 l 2.5 I FA - Average Forward Current ( A ) l 100 80 TL= constant 60 40 20 0 0 5 10 15 20 25 1.5 1.0 0.5 RthJA = 100 K/W PCB: d = 25 mm 0 30 l - Lead Length ( mm ) 94 9101 V R = VRRM half sinewave R thJA = 45 K/W l = 10 mm 2.0 Figure 1. Typ. Thermal Resistance vs. Lead Length 0 25 50 75 100 125 150 Tamb - Ambient Temperature ( ° C ) 16418 Figure 3. Max. Average Forward Current vs. Ambient Temperature 1000 100 10 1 Tj =25 °C 0.1 0.01 I R - Reverse Current ( µA ) I F - Forward Current ( A ) V R = VRRM Tj = 150 ° C 0.001 10 1 25 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 V F - Forward V oltage ( V ) 16417 Figure 2. Forward Current vs. Forward Voltage www.vishay.com 2 100 16419 50 75 100 125 150 Tj - Junction T emperature ( ° C ) Figure 4. Reverse Current vs. Junction Temperature Document Number 86006 Rev. 1.6, 14-Apr-05 BY448 / BY458 Vishay Semiconductors 35 V R = VRRM 350 CD - Diode Capacitance ( pF ) PR - Reverse Power Dissipation ( mW ) 400 300 PR -Limit @100 % VR 250 200 150 PR -Limit @80 % VR 100 50 0 25 16420 50 75 100 125 25 20 15 10 5 0 0.1 150 Tj - Junction Temperature ( °C ) 1 10 100 V R - Reverse Voltage ( V ) 16421 Figure 5. Max. Reverse Power Dissipation vs. Junction Temperature f= 1 MHz 30 Figure 6. Diode Capacitance vs. Reverse Voltage Package Dimensions in mm (Inches) Sintered Glass Case SOD-57 3.6 (0.140)max. 94 9538 Cathode Identification ISO Method E 0.82 (0.032) max. 26(1.014) min. Document Number 86006 Rev. 1.6, 14-Apr-05 4.0 (0.156) max. 26(1.014) min. www.vishay.com 3 BY448 / BY458 Vishay Semiconductors Ozone Depleting Substances Policy Statement It is the policy of Vishay Semiconductor GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use Vishay Semiconductors products for any unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany www.vishay.com 4 Document Number 86006 Rev. 1.6, 14-Apr-05 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1