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| BY448.BY458 Silicon Mesa Rectifiers Features D Glass passivated junction D Hermetically sealed package Applications High voltage rectifier Efficiency diode in horizontal deflection circuits 94 9539 Absolute Maximum Ratings Tj = 25_C Parameter Reverse voltage g Peak forward surge current Average forward current Junction temperature Storage temperature range Test Conditions Type BY448 BY458 Symbol VR VR IFSM IFAV Tj Tstg Value 1500 1200 30 2 140 -55...+150 Unit V V A A C C tp=10ms Maximum Thermal Resistance Tj = 25_C Parameter Junction ambient Test Conditions on PC board with spacing 25mm Symbol RthJA Value 100 Unit K/W Characteristics Tj = 25_C Parameter Forward voltage Reverse current Test Conditions IF=3A VR=VRSM VR=VRSM, Tj=140C Total reverse recovery time IF=1A, -diF/dt=0.05A/ms Type Symbol VF IR IR trr Min Typ Max 1.6 3 140 20 Unit V mA mA ms TELEFUNKEN Semiconductors Rev. A1, 12-Dec-94 1 (4) BY448.BY458 Typical Characteristics (Tj = 25_C unless otherwise specified) 50 3 I R - Reverse Current ( mA ) 1000 Scattering Limit 100 10 25 50 1 VR = VR RM 0 40 80 120 160 200 0.1 7 2 94 9086a 94 9082 Tj - Junction Temperature ( C ) Figure 1. Epoxy glass hard tissue, board thickness 1.5 mm, RthJA K/W x100 Figure 3. Reverse Current vs. Junction Temperature R thJA - Therm. Resist. Junction / Ambient ( K/W ) 120 l 100 80 60 40 20 0 0 5 10 15 20 25 30 l - Lead Length ( mm ) TL=constant l IF - Forward Current ( A ) 100 Tj = 25C 10 Scattering Limit 1 0.1 0.01 0 94 9157 0.6 1.2 1.8 2.4 3.0 94 9101 VF - Forward Voltage ( V ) Figure 2. Thermal Resistance vs. Lead Length Figure 4. Forward Current vs. Forward Voltage 2 (4) TELEFUNKEN Semiconductors Rev. A1, 12-Dec-94 BY448.BY458 Dimensions in mm Sintered Glass Case SOD 57 Weight max. 0.5 g Cathode Identification 94 9538 3.6 max. technical drawings according to DIN specifications 0.82 max. 26 min. 4.2 max. 26 min. TELEFUNKEN Semiconductors Rev. A1, 12-Dec-94 3 (4) BY448.BY458 Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic 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. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division 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. TEMIC 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 TEMIC products for any unintended or unauthorized application, the buyer shall indemnify TEMIC 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. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423 4 (4) TELEFUNKEN Semiconductors Rev. A1, 12-Dec-94 |
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