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DL4933-DL4937
Vishay Lite-On Power Semiconductor
1.0A Surface Mount Fast Recovery Rectifiers
Features
D D D D D D
Glass passivated junction Low leakage Low forward voltage drop High current capability For surface mounted application Plastic material - UL Recognition flammability classification 94V-0
14 427
Absolute Maximum Ratings
Tj = 25_C Parameter Repetitive peak reverse voltage g =Working peak reverse voltage =DC Bl ki voltage DC Blocking lt Test Conditions Type DL4933 DL4934 DL4935 DL4936 DL4937 Symbol VRRM =VRWM =VR V Value 50 100 200 400 600 30 1 -65...+150 Unit V V V V V A A C
Peak forward surge current Average forward current TT=75C Junction and storage temperature range
IFSM IFAV Tj=Tstg
Electrical Characteristics
Tj = 25_C Parameter Forward voltage Reverse current Reverse recovery time Diode capacitance Test Conditions IFAV=1A TT=55C IF=1A, VR=30V,di/dt= 50A/ms VR=4V, f=1MHz Type Symbol VF IR IR trr CD Min Typ Max 1.2 5 100 200 Unit V
mA mA
ns pF
15
Rev. A2, 24-Jun-98
1 (4)
DL4933-DL4937
Vishay Lite-On Power Semiconductor Characteristics (Tj = 25_C unless otherwise specified)
Figure 1. Max. Average Forward Current vs. Ambient Temperature Figure 3. Max. Peak Forward Surge Current vs. Number of Cycles
Figure 2. Typ. Forward Current vs. Forward Voltage
Figure 4. Typ. Reverse Current vs. Percent of Rated Peak Reverse Voltage
2 (4)
Rev. A2, 24-Jun-98
DL4933-DL4937
Vishay Lite-On Power Semiconductor Dimensions in mm
14441
Case: MELF, plastic Polarity: cathode band Approx. weight: 0.25 grams Mounting position: any Marking: cathode band only
Rev. A2, 24-Jun-98
3 (4)
DL4933-DL4937
Vishay Lite-On Power Semiconductor 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-Telefunken products for any unintended or unauthorized application, the buyer shall indemnify Vishay-Telefunken 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 Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423
4 (4)
Rev. A2, 24-Jun-98

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