Datasheet 1N5817, 1N5818, 1N5819 (ON Semiconductor) - 6

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1N5817, 1N5818, 1N5819 NOTE 6. — HIGH FREQUENCY OPERATION
Since current flow in a Schottky rectifier is the result of 200 majority carrier conduction, it is not subject to junction diode forward and reverse recovery transients due to 100 minority carrier injection and stored charge. Satisfactory (pF) 1N5817 circuit analysis work may be performed by using a model 70 consisting of an ideal diode in parallel with a variable ANCE 1N5818 50 capacitance. (See Figure 10.) ACIT 1N5819 Rectification efficiency measurements show that 30 operation will be satisfactory up to several megahertz. For C, CAP TJ = 25°C example, relative waveform rectification efficiency is 20 f = 1.0 MHz approximately 70 percent at 2.0 MHz, e.g., the ratio of dc power to RMS power in the load is 0.28 at this frequency, 10 whereas perfect rectification would yield 0.406 for sine 0.4 0.6 0.8 1.0 2.0 4.0 6.0 8.0 10 20 40 wave inputs. However, in contrast to ordinary junction VR, REVERSE VOLTAGE (VOLTS) diodes, the loss in waveform efficiency is not indicative of
Figure 10. Typical Capacitance
power loss: it is simply a result of reverse current flow through the diode capacitance, which lowers the dc output voltage.
ORDERING INFORMATION Device Package Shipping
† 1N5817 Axial Lead* 1000 Units / Bag 1N5817G Axial Lead* 1000 Units / Bag 1N5817RL Axial Lead* 5000 / Tape & Reel 1N5817RLG Axial Lead* 5000 / Tape & Reel 1N5818 Axial Lead* 1000 Units / Bag 1N5818G Axial Lead* 1000 Units / Bag 1N5818RL Axial Lead* 5000 / Tape & Reel 1N5818RLG Axial Lead* 5000 / Tape & Reel 1N5819 Axial Lead* 1000 Units / Bag 1N5819G Axial Lead* 1000 Units / Bag 1N5819RL Axial Lead* 5000 / Tape & Reel 1N5819RLG Axial Lead* 5000 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *This package is inherently Pb−Free.
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