參數(shù)資料
型號(hào): P0640EB
英文描述: 18LD 4MHZ 1K EPRM/128 EEPROM, -40C to +85C, 18-PDIP, TUBE
中文描述: SIDAC的| 77V V(下公報(bào))最大| 800mA的我(縣)|對(duì)92VAR
文件頁數(shù): 63/161頁
文件大小: 986K
代理商: P0640EB
SIDACtor
Data Book
PBX Systems
Teccor Electronics
(972) 580-7777
3 - 23
R
+2$
Branch Exchange Switches
PBX
s, KSU
s, and PABX
s contain line cards that support various transmission
protocols such as ISDN, T1/E1, HDSL, and ADSL (Figure 3-24). PBXs also have
features such as a POTS (plain old telephone service) pull through which allows
stations to have outside line access in the event of power failure. All incoming lines to
the PBX are subject to environmental hazards such as lightning and power cross.
Protection Requirements
Branch exchange switches should be protected against over-voltages that can exceed
800V and surge currents of up to 100A.
Applicable Regulatory Requirements
FCC Part 68
UL 1459
UL 1950
Branch Exchange Reference Circuit
The following sections contain interface circuits used for protection of PBX line cards.
For POTS protection see pages 3-3 through 3-6.
For ADSL/CDSL protection see page 3-8
For HDSL protection see page 3-10.
For ISDN protection see page 3-12.
For T1/E1 protection see page 3-16.
For Station Protection see pages 3-19 through 3-23.
Figure 3-24 PBX Overview
Stations
To Network
Logic
PBX
POTS
T1/E1
ADSL
HDSL
ISDN
L
M
S
S
C
S
C
Station Primary
Protection
相關(guān)PDF資料
PDF描述
P0640EBRP1 20LD 4MHZ 1K EPRM/128 EEPROM, -40C to +85C, 20-SSOP 208mil, TUBE
P0640EBRP2 18LD 20MHZ 1K EPRM/128 EEPROM, 0C to +70C, 18-SOIC 300mil, TUBE
P0640EC 18LD 20MHZ 1K EPRM/128 EEPROM, -40C to +85C, 18-PDIP, TUBE
P0640ECRP1 18LD 4MHZ 1K EPRM/128 EEPROM, 0C to +70C, 18-SOIC 300mil, T/R
P0640ECRP2 20LD 20MHZ 1K EPRM/128 EEPROM, -40C to +85C, 20-SSOP 208mil, T/R
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P0640EBL 功能描述:硅對(duì)稱二端開關(guān)元件 100A 58V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流(在 VDRM IDRM 下): 保持電流(Ih 最大值):50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA
P0640EBLAP 功能描述:硅對(duì)稱二端開關(guān)元件 100A 58V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流(在 VDRM IDRM 下): 保持電流(Ih 最大值):50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA
P0640EBLRP1 功能描述:硅對(duì)稱二端開關(guān)元件 100A 58V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流(在 VDRM IDRM 下): 保持電流(Ih 最大值):50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA
P0640EBLRP2 功能描述:硅對(duì)稱二端開關(guān)元件 100A 58V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流(在 VDRM IDRM 下): 保持電流(Ih 最大值):50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA
P0640EBRP1 功能描述:硅對(duì)稱二端開關(guān)元件 100A 58V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流(在 VDRM IDRM 下): 保持電流(Ih 最大值):50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA