1N5819G データシートの表示（PDF） - ON Semiconductor
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1N5819G Datasheet PDF : 7 Pages
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1N5817, 1N5818, 1N5819
NOTE 6. — HIGH FREQUENCY OPERATION
Since current flow in a Schottky rectifier is the result of
majority carrier conduction, it is not subject to junction
diode forward and reverse recovery transients due to
minority carrier injection and stored charge. Satisfactory
circuit analysis work may be performed by using a model
consisting of an ideal diode in parallel with a variable
capacitance. (See Figure 10.)
Rectification efficiency measurements show that
operation will be satisfactory up to several megahertz. For
example, relative waveform rectification efficiency is
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,
whereas perfect rectification would yield 0.406 for sine
wave inputs. However, in contrast to ordinary junction
diodes, the loss in waveform efficiency is not indicative of
power loss: it is simply a result of reverse current flow
through the diode capacitance, which lowers the dc output
voltage.
200
100
70
1N5817
50
1N5818
1N5819
30
20
TJ = 25°C
f = 1.0 MHz
10
0.4 0.6 0.8 1.0
2.0
4.0 6.0 8.0 10
20
40
VR, REVERSE VOLTAGE (VOLTS)
Figure 10. Typical Capacitance
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.
http://onsemi.com
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