- 您現在的位置：買賣IC網 > PDF目錄367627 > P2500AA61RP MCU CMOS 80 LD 33MHZ 8K EPRM, 0C to +70C, 80-TQFP, TRAY PDF資料下載
參數資料
| 型號： | P2500AA61RP |
| 英文描述： | MCU CMOS 80 LD 33MHZ 8K EPRM, 0C to +70C, 80-TQFP, TRAY |
| 中文描述： | SIDAC的| 290V五（公報）最大| 800mA的我（縣）|對220VAR |
| 文件頁數： | 135/161頁 |
| 文件大?。?/td> | 986K |
| 代理商： | P2500AA61RP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁當前第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁
SIDACtor
Data Book
Telecommunications Protection
Teccor Electronics
(972) 580-7777
5 - 19
T
Overview
Because early telecommunications equipment was constructed with components such
as mechanical relays, coils, and vacuum tubes, it was somewhat immune to lightning
and power cross conditions. But as cross bar and step by step switches have given
way to more modern equipment such as digital loop carriers, repeater amplifiers, and
multiplexers, an emphasis has been put on protecting this equipment against system
transients.
System Transients
Telecommunications equipment connected to power and telephone cables is exposed
to system transients caused by lightning and power cross conditions.
During an electrical storm, transient voltages are induced onto the telecommunications
system by lightning currents which enter the conductive shield of suspended cable or
through buried cables via ground currents.
As this occurs, the current traveling through the conductive shield of the cable
produces an equal voltage on both the Tip and Ring conductors at the terminating
ends. Known as a longitudinal voltage surge, the peak value and wave-form
associated with this condition is dependent upon the distance the transient travels
down the cable and the materials with which the cable is constructed.
Although lightning induced surges are always longitudinal in nature, imbalances
resulting from terminating equipment and asymmetric operation of primary protectors
can result in metallic transients as well. A Tip to Ring surge is normally seen by
terminating equipment and is the primary reason most regulatory agencies require
telecom equipment to have both longitudinal and metallic surge protection.
Another system transient that is a common occurrence for telecommunications cables
is exposure to the AC power system. The common use of poles, trenches, and ground
wires results in varying levels of exposure which can be categorized as direct power
cross, power induction and ground potential rise.
Direct power cross occurs when a power line makes direct contact to a
telecommunications cables. Direct contact is commonly caused by falling trees, winter
icing, severe thunderstorms and vehicle accidents. Direct power cross can result in
large currents being present on the line.
Power induction is common where power cables and telecommunications cables are
run in close proximity to one another. Electromagnetic coupling between the cables
results in system transients being induced onto the telecommunications cables which
in turn can cause excessive heating and fires in terminal equipment located at the
cable ends.
Ground potential rise is a result of large fault currents flowing to ground. Due to the
varying soil resistivity and multiple grounding points, system potential differences may
result.
相關PDF資料 |
PDF描述 |
|---|---|
| P2600EA | MCU CMOS 28 LD 40MHZ 8K OTP, -40C to +125C, 28-SPDIP, TUBE |
| P2600EARP1 | MCU CMOS 28 LD 40MHZ 8K OTP, -40C to +85C, 28-SPDIP, TUBE |
| P2702AA | MCU CMOS 84 LD LOW PWR, -40C to +85C, 84-PLCC, TUBE |
| P2702AARP | SIDAC|160V V(BO) MAX|800MA I(S)|TO-220VAR |
| P2702AB | SIDAC|160V V(BO) MAX|800MA I(S)|TO-220VAR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| P2500ATL | 制造商:SEMIKRON 制造商全稱:Semikron International 功能描述:Standard silicon rectifier diodes |
| P2500B | 制造商:SEMIKRON 制造商全稱:Semikron International 功能描述:Standard silicon rectifier diodes |
| P2500BTL | 制造商:SEMIKRON 制造商全稱:Semikron International 功能描述:Standard silicon rectifier diodes |
| P2500D | 制造商:SEMIKRON 制造商全稱:Semikron International 功能描述:Standard silicon rectifier diodes |
| P2500DTL | 制造商:SEMIKRON 制造商全稱:Semikron International 功能描述:Standard silicon rectifier diodes |
發(fā)布緊急采購，3分鐘左右您將得到回復。