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| VISHAY 1N4148WS Vishay Semiconductors Small-Signal Diode \ 17431 Features * These diodes are also available in other case styles including the DO-35 case with the type designation 1N4148, the MiniMELF case with the type designation LL4148, and the SOT-23 case with the type designation IMBD4148. * Silicon Epitaxial Planar Diode * Fast switching diodes Mechanical Data Case: SOD-323 Plastic Case Weight: approx. 4 mg Marking: A2 Packaging Codes/Options: D5 / 10k per 13" reel (8 mm tape), 30k/box D6 / 3k per 7" reel (8 mm tape), 30k/box Absolute Maximum Ratings Tamb = 25 C, unless otherwise specified Parameter Reverse voltage Peak reverse voltage Average rectified current half wave rectification with resistive load Surge forward current Power dissipation 1) Test condition Symbol VR VRM Value 75 100 1501) 350 2001) Unit V V mA mA mW f 50 Hz t < 1 s and Tj = 25 C IF(AV) IFSM Ptot Valid provided that electrodes are kept at ambient temperature. Maximum Thermal Resistance Tamb = 25 C, unless otherwise specified Parameter Thermal resistance junction to ambien air Junction temperature Storage temperature 1) Symbol RJA Tj TS Value 6501) 150 - 65 to + 150 Unit C/W C C Valid provided that electrodes are kept at ambient temperature. Document Number 85751 Rev. 2, 26-Feb-03 www.vishay.com 1 1N4148WS Vishay Semiconductors Electrical Characteristics Tamb = 25 C, unless otherwise specified Parameter Forward voltage Leakage current VR = 20 V VR = 75 V VR = 20 V, TJ = 150 C Capacitance Voltage rise when switching ON (tested with 50 mA pulses) Reverse recovery time Rectification efficiency VF = VR = 0 V tested with 50 mA pulses, tp = 0.1 s, rise time < 30 ns, fp = (5 to 100) kHz IF = 10 mA, IR = 1 mA, VR = 6 V, R L = 100 f = 100 MHz, VRF = 2 V Ctot Vfr Test condition IF = 10 mA Symbol VF Min VISHAY Max 1.0 25 5.0 50 4 2.5 Unit V nA A A pF ns trr 0.45 4 ns Rectification Efficiency Measurement Circuit 17436 Typical Characteristics (Tamb = 25 C unless otherwise specified) 17437 17438 Figure 1. Forward characteristics Figure 2. Dynamic Forward Resistance vs. Forward Current www.vishay.com 2 Document Number 85751 Rev. 2, 26-Feb-03 VISHAY 1N4148WS Vishay Semiconductors 17439 17441 Figure 3. Admissible Power Dissipation vs. Ambient Temperature Figure 5. Leakage Current vs. Junction Temperature 17440 Figure 4. Reverse Capacitance vs. Reverse Voltage 17442 Figure 6. Admissible Repetitive Peak Forward Current vs. Pulse Duration Document Number 85751 Rev. 2, 26-Feb-03 www.vishay.com 3 1N4148WS Vishay Semiconductors Package Dimensions in Inches (mm) VISHAY .012 (0.3) Cathode Band .112 (2.85) .100 (2.55) .076 (1.95) .065 (1.65) .059 (1.5) .043 (1.1) .049 (1.25) max. .006 (0.15) max. .004 (0.1) max. .010 (0.25) min. 17443 Mounting Pad Layout 0.055 (1.40) 0.062 (1.60) 0.047 (1.20) 17444 www.vishay.com 4 Document Number 85751 Rev. 2, 26-Feb-03 VISHAY 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. 1N4148WS Vishay Semiconductors 2. Regularly and continuously improve the performance of our products, processes, distribution and operatingsystems 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 Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423 Document Number 85751 Rev. 2, 26-Feb-03 www.vishay.com 5 |
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