6SL3330-7TE33-8AA3

6SL3330-7TE33-8AA3

6SL3330-7TE33-8AA3

6SL3330-7TE33-8AA3

Cisco HWIC-3G-GSM 3GWWAN HWIC-HSDPA/UMTS/EDGE/GPRS-

Cisco HWIC-3G-CDMA-S Fast Shiping

Cisco HWIC-1T1/E1 T1/E1 module- 

Cisco HWIC-1T1/E1 T1/E1 module- 

Cisco HWIC-1T1/E1 T1/E1 High Speed WAN Interface Card 1YR - ASK 4 QTY

Cisco HWIC-1T WAN Interface Card 

Cisco HWIC-1GE-SFP High-Speed WAN Interface Card

Cisco HWIC-1GE-SFP High-Speed WAN Interface Card

Cisco HWIC-1GE-SFP Gigabit Ethernet High-Speed WAN Interface Card

Cisco HWIC-1GE-SFP Gigabit Ethernet High-Speed WAN Interface Card

Cisco HWIC-1ADSLI 1-PORT ADSLOISDN HWIC  

Cisco HWIC-1ADSLI 1-PORT ADSLOISDN HWIC  

Cisco HWIC-16A 16-Port Async High-Speed WAN Interface Card

Cisco HWIC-16A 16-Port Async High-Speed WAN Interface Card

Cisco GSR12406 AC 12406/120 Gigabit Switch Router Free US  GSR6/120 

CISCO GLC-LX-SM-RGD 

Cisco GEIP PLUS FOR 7500 7507 7513 

Cisco GE-DCARD-ESW for NM-16ESW-NMD-36-ESW-Waranty

CISCO FXO UNIVERSAL 4-PORTS VOICE INTERFACE CARD VIC24FXO VIC2-4FXO

CISCO ETHERNET SWITCH 48-PORTS 2  POE LAN BASE WSC3560X48PL WS-C3560X-48P-L

CISCO ETHERNET SWITCH 48-PORTS 2  48 10/100/1000BASE-T 2 X WS-C3750X-48T-L

CISCO ESW-540-8P-K9 SMALL BUSINESS PRO 8PORT 10/100/1000 POE SWITCH

CISCO ESW-540-8P-K9 SMALL BUSINESS PRO 8PORT 10/100/1000 POE SWITCH

CISCO ESW-540-24P-K9 SMALL BUSINESS PRO ESW 54024 10/100/1000 POE  4PORT 

CISCO ESW-540-24P-K9 SMALL BUSINESS PRO ESW 54024 10/100/1000 POE  4PORT 

CISCO ESW-520-8P-K9 SMALL BUSINESS PRO 8PORT 10/100 POE SWITCH

CISCO ESW-520-8P-K9 SMALL BUSINESS PRO 8PORT 10/100 POE SWITCH

CISCO ESW-520-48P-K9 SMALL BUSINESS PRO ESW 52048 10/100 POE 4GBE PORTS

CISCO ESW-520-48P-K9 SMALL BUSINESS PRO ESW 52048 10/100 POE 4GBE PORTS

CISCO ESW-520-48-K9 SMALL BUSINESS PRO ESW 52048 10/100 4GBE PORTS

CISCO ESW-520-24P-K9 SMALL BUSINESS PRO ESW 520 24PORT 10/100 POE 2PORT GE 

CISCO ESW-520-24P-K9 SMALL BUSINESS PRO ESW 520 24PORT 10/100 POE 2PORT GE 

CISCO ENHANCED ETHERSWITCH SERVICE MODULE 48 X 10/100/1000BASE-T SMDES3G48P

Cisco EM-HDA-4FXO Expansion Module

CISCO DIGITAL T1/E1 PACKET VOICE TRUNK NETWORK MODULE VOICE/FAX NMHDV2E160

CISCO CVPN3060-RED VPN Concentrator 

CISCO CVPN3060-RED VPN Concentrator 

Cisco CVPN3015-NR-BUN Concentrator-WARRANTY-FastShip

Cisco CVPN3015-NR-BUN Concentrator-WARRANTY-FastShip

Cisco CVPN CVPN3030-RED-BUN Fast Shiping

Cisco CVPN CVPN3030-RED-BUN Fast Shiping

Cisco CSS8-IOM-8FE= CSS 11800 Switch Expansion Module   w/ 1 Year  

CISCO CSS5-IOM-8FE CSS 11500 Fast Ethernet I/O Module 8-port TX 1 YEAR 

Cisco CSS11503-AC With CSS5-SCM-2GE and CSS5-IOM-16FE Content Switch 

CISCO CSS11501S-C-K9 Content Service Switch 

CISCO CSS11501S-C-K9 Content Service Switch 

CISCO CSS 11506 Content Services Switch Novia Networks 1 YEAR 

CISCO CP-7985-NTSC IP VIDEO Phone 7985 Fast Ship WRNTY

CISCO CP-7985-NTSC IP VIDEO Phone 7985 Fast Ship WRNTY

Cisco CP-7985G IP VIDEO Phone 7985 

Cisco CP-7985G IP VIDEO Phone 7985 

Cisco CP-7975G Unified IP Phone VoIP

CISCO CP-7975G UNIFIED IP PHONE 7975 GIG ETHERNET COLOR 

CISCO CP-7975G IP PHONE 7975 GIG ETHERNET COLOR 

CISCO CP-7971G-GE IP PHONE 7971 

CISCO CP-7970G IP Phone GRADE A SCCP w/ 1 YEAR Wrnty

CISCO CP-7965G Unified IP Phone GRADE A7965 

CISCO CP-7965G IP PHONE 7965 GIG ETHERNET COLOR 

CISCO CP-7965G IP PHONE 7965 GIG ETHERNET COLOR 

Cisco CP-7962G IP Phone VOIP sccp 

CISCO CP-7962G IP Phone 7962 VoIP 

CISCO CP-7962G IP Phone 7962 VoIP 

Cisco CP-7961G-GE IP Phone--FastShip

Cisco CP-7961G IP Phone- GRADE A -FastShip

Cisco CP-7961G IP Phone 7961G VoIP Phone 

Cisco CP-7960G Unified IP Phone 7960 VoIP Phone 

CISCO CP-7945G UNIFIED IP PHONE 7945 GIG ETHERNET COLOR 

CISCO CP-7945G UNIFIED IP PHONE 7945 GIG ETHERNET COLOR 

CISCO CP-7945G IP PHONE GIG ETHERNET COLOR

Cisco CP-7942G IP Phone 7942G Fast Ship

CISCO CP-7941G-CH1 IP PHONE 7941 

CISCO CP-7941G-CH1 IP PHONE 7941 

Cisco CP-7941G VoIP IP Phone VOIP

Cisco CP-7937-PWR-SPL Power Splitter Fast Ship

Cisco CP-7937G IP Conference POE Phone Fast Ship

Cisco CP-7937G IP Conference POE Phone Fast Ship

Cisco CP-7937 Microphone Kit CP-7937-MIC-KIT Fast Shipi

Cisco CP-7936-PWR-KIT Power adapter Fast Shiping

Cisco CP-7936 Unified Conference Station Fast Ship

Cisco CP-7936 Unified Conference Station Fast Ship

CISCO CP-7936 Conference Station PLUS MICROPHONE KIT

CISCO CP-7936 Conference Station PLUS MICROPHONE KIT

Cisco CP-7935 IP Confrence Station Fast Ship

Cisco CP-7931G Unified IP phone 7931 Fast Shiping

Cisco CP-7914 IP PHONE EXPANSION MODULE FOR 7960

CISCO CP-7912G-A IP PHONE 7912 

CUTLER HAMMER D840MPM NSFP D840MPM

CUTLER HAMMER D80NE2C NSPP D80NE2C

CUTLER HAMMER D80NE2C NSFP D80NE2C

CUTLER HAMMER D80NE2A PNEUMATIC TIMER 110-120V 50/60HZ NIB

CUTLER HAMMER D80NE2A NSPP D80NE2A

CUTLER HAMMER D80NE1A USPP D80NE1A

CUTLER HAMMER D80NE1A NSFP D80NE1A

CUTLER HAMMER D80ND2A NSPP D80ND2A

CUTLER HAMMER D80ND1C USPP D80ND1C

CUTLER HAMMER D80ND1A USPP D80ND1A

CUTLER HAMMER D80ND1A NSFP D80ND1A

Cutler Hammer D80N A2 Pneumatic Timer 

CUTLER HAMMER D80JE22A USPP D80JE22A

CUTLER HAMMER D80JE20A NSFP D80JE20A

CUTLER HAMMER D80JE10A NSFP D80JE10A

CUTLER HAMMER D80J-AS2 NSPP D80JAS2

CUTLER HAMMER D80JA11 USPP D80JA11

CUTLER HAMMER D80-AS1 NSFP D80AS1

CUTLER HAMMER D80AMT NSFP D80AMT

CUTLER HAMMER D80AMC NSFP D80AMC

CUTLER HAMMER D80AMB NSFP D80AMB

CUTLER HAMMER D80AMA USPP D80AMA

CUTLER HAMMER D80AMA USPP D80AMA

CUTLER HAMMER D80AMA NSPP D80AMA

CUTLER HAMMER D80AMA NSFP D80AMA

CUTLER HAMMER D800VCP1218 USPP D800VCP1218

CUTLER HAMMER D7XTN14XXXX4XPC USPP D7XTN14XXXX4XPC

CUTLER HAMMER D7XTN14XXXX4DXX NSFP D7XTN14XXXX4DXX

CUTLER HAMMER D7DBA15STA1XXX USPP D7DBA15STA1XXX

CUTLER HAMMER D7DBA12STA1XXX USPP D7DBA12STA1XXX

CUTLER HAMMER D7DBA10AGA1XXX USPP D7DBA10AGA1XXX

CUTLER HAMMER D7D SERIES TOUCH PANEL D7DBA12AGA1XXX

CUTLER HAMMER D77BDSNAPX1 USPP D77BDSNAPX1

CUTLER HAMMER D77BDSNAPX1 NSFP D77BDSNAPX1

CUTLER HAMMER D77A-RQ8 NSFP D77ARQ8

CUTLER HAMMER D77A-DI8-DQ8 NSFP D77ADI8DQ8

CUTLER HAMMER D77A-DI8 NSFP D77ADI8

CUTLER HAMMER D735SVPP32SDW95 USPP D735SVPP32SDW95

CUTLER HAMMER D72WTSP7Z863WNT USPP D72WTSP7Z863WNT

CUTLER HAMMER D72WTSP7Z84DWNT USPP D72WTSP7Z84DWNT

Cutler Hammer D72WTSP364HDNPC D720 Industrial Computer

CUTLER HAMMER D72WNOP76433WNT USPP D72WNOP76433WNT

CUTLER HAMMER D72N8XXAXXXX USPP D72N8XXAXXXX

CUTLER HAMMER D725SVP232SDWNT USPP D725SVP232SDWNT

Cutler Hammer D720 Industrial PC D72WTSP7Z86DWNT

CUTLER HAMMER D720 DS90021SPAREIR

CUTLER HAMMER D710TFT14TS USPP D710TFT14TS

CUTLER HAMMER D710TFT14TS NSFP D710TFT14TS

CUTLER HAMMER D710TFT10TS USPP D710TFT10TS

CUTLER HAMMER D64RPB1 USPP D64RPB1

Cutler Hammer D64RP18 ground fault relay with built in 110"CT 30MA-6A 24-240V

CUTLER HAMMER D641 USPP D641

CUTLER HAMMER D60PND PHASE MONITORING RELAY 600V 

CUTLER HAMMER D60PNC NSFP D60PNC

单极型管的单极放大电路，用场效应管作为放大器件组成的放大电路，称为场效应管放大电路。场效应管和双极型晶体管一样是电路的核心器件，在电路中起以小控大的作用。在场效应管的放大电路中，为实现电路对信号的放大作用，要建立偏置电路以提供合适的偏置电压，使场效应管工作在特性的恒流区。

自给偏压电路

N沟道耗尽型MOS管组成的共源极放大电路

自给偏压电路

自给偏压电路

场效应管的栅极通过电阻Rg接地，源极通过电阻Rs接地。这种偏置方法靠漏极电流Id在源极电阻Rs上产生的电压为栅源极提供一个偏置电压Ugs，故称为自偏压电路。

场效应管

场效应管也是非线性器件，在输入信号电压很小的条件下，也可将其用小信号模型等效。与建立双极型三极管小信号模型相似，将场效应管也看成一个两端口网络，以结型场效应管为例，栅极与源极之间为输入端口，漏极与源极之间为输出端口。无论是哪种类型的场效应管，均可以认为栅极电流为零，输入端口视为开路，栅源极间只有电压存在。

共源极

共源极场效应管放大电路与双极型管共射放大电路相比较，

共源极放大电路

共源极放大电路

共源极放大电路具有以下特点：输入电阻，相当于开路；输出电阻由于并联一个电阻Rds，因此输出电阻较小。共源极场效应管放大电路的微变等效电路相当于一个电压控制的电流源。

放大电路

共漏极放大电路又称为源极输出器或源极跟随器，同样具有与共集电极放大电路相同的特性：输入电阻高、输出电阻低和电压放大倍数小于1并接近于1。

CUTLER HAMMER D60PNB NSPP D60PNB