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P6002ACMC датащи(PDF) 108 Page - Teccor Electronics |
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P6002ACMC датащи(HTML) 108 Page - Teccor Electronics |
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108 / 212 page ![]() Analog Line Cards http://www.teccor.com 3 - 20 © 2002 Teccor Electronics +1 972-580-7777 SIDACtor® Data Book and Design Guide Figure 3.23 illustrates the use of the P2600SA and P0721CA2 for overvoltage protection and the F0500T for overcurrent protection in addition to 20 W of series resistance on both Tip and Ring. The series resistance is required to limit the transient surge currents to within the surge current rating of the “A” series SIDACtor devices and the F0500T TeleLink fuse. Figure 3.23 SLIC Protection with Fixed Voltage SIDACtor Devices The illustration of SLIC protection in Figure 3.24 shows Teccor’s Battrax device protecting Legerity’s (formerly AMD’s) Am79R79 from overvoltages and uses a F1250T to protect against sustained power cross conditions. The Battrax product was designed specifically to protect SLICs that cannot withstand potential differences greater than VREF ±10 V. Figure 3.24 SLIC Protection with Programmable Voltage SIDACtor Devices R E L A Y S L I C F0500T F0500T P2600SA P2600SA P0721CA2 20 Ω 20 Ω Tip Ring F1250T F1250T Legerity Am79R79 -VREF B1XX0CC B1XX0CC -VREF 0.1 µF 0.1µF Tip Ring 1N4935/ MUR120 1N4935/ MUR120 |
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