440G-TZS21UPRH
440G-TZS21UPRH
440G-TZS21UPRH
Cisco PA-A6-OC3MM 1 Port Enh ATM OC3c/STM1 Multimode 1YR - ASK 4 QTY
Cisco PA-A6-OC3MM 1 Port Enh ATM OC3c/STM1 Multimode 1YR - ASK 4 QTY
Cisco PA-2T3 Serial Adapter Card for 7204 7206VXR
Cisco PA-2CE1/PRI-75 Channelized Adapter WRNTY
CISCO ONS-XC-10G-C XFP -10G MULTIRATE FULL C BAND TUNEABLE DWDM XFP 50 GHZ LC
CISCO ONS-XC-10G-C XFP -10G MULTIRATE FULL C BAND TUNEABLE DWDM XFP 50 GHZ LC
Cisco NPE-G2 ENGINE w/2GB-512F for VXR In stock
CISCO NPE-G2 ENGINE FOR 7200 VXR SERIES NPEG2
Cisco NPE-G1 Network Processing Engine 512MB/128F for 7206VXR 7204VXR
Cisco NPE-G1 Network Processing Engine 1 YEAR
CISCO NPE-300 Network Processing Engine Fast Shiping
CISCO NPE-175 NETWORK ENGINE
Cisco NM-NAM Network Analysis Module Genuine Fast Ship
CISCO NM-HDV2-1T1/E1 Digital Voice/Fax Network Module
Cisco NME-XD-48ES-2S-P 48 10/100T POE 2SFP
Cisco NME-XD-48ES-2S-P 48 10/100T POE 2SFP
CISCO NME-CUE Enhanced Network VOIP Module FastShip
CISCO NME-CUE Enhanced Network VOIP Module FastShip
CISCO NME-APPRE-502-K9 Network Module 1YR - ASK 4 QTY
CISCO NME-APPRE-502-K9 Network Module 1YR - ASK 4 QTY
Cisco NMD-36-ESW-PWR EtherSwitch Module Fast Ship
Cisco NMD-36-ESW-2GIG Ethernet Module Fast Shiping
Cisco NM-CUE-EC Unity Express Module 1YR - ASK 4 QTY
Cisco NM-CUE-EC Unity Express Module 1YR - ASK 4 QTY
CISCO NM-CIDS-K9 Intrusion Detection Network Module
CISCO NM-4E Ethernet Module Fast Shiping
Cisco NM-2W Module for 2600 3600 3700 FastShip-WRNTY
Cisco NM-2V Module Fast Ship
CISCO NM-1T3/E3 1 PORT T3/E3 NM1T3E3 Network Module
Cisco NM-1GE 1 PORT GE NETWORK MODULE
Cisco NM-1A-T3 ATM Network Module w/
Cisco Nexus N7K-M148GT-11 48-Ports Switch 7000 48 Port 10/100/1000 RJ-45
CISCO NEXUS N7K-M148GT-11 JLB
Cisco Nexus N7K-M108X2-12L 8-port 10 Gigabit Ethernet Module with XL Option
Cisco Nexus N7K-C7010-BUN bundle w/N7K-C7010 1 N7K-SUP1 and more
Cisco Nexus N5K-C5548UP-FA Switch 5548 UP Chassis 32 10GbE Ports 2 PS2 Fans
Cisco Network Module Enhanced NME-APPRE-522-K9
CISCO N7K-M148GS-11 7000
Cisco N7K-M132XP-12L
CISCO N7K-C7018-FAB-1
Cisco N5K-C5020P-BFS Nexus 5020 Switch W/ 5 Fans 2x N5K-PAC-1200W Power
Cisco N5K-C5020P-BF Nexus 5000 2RU 5 Fans 2x N5K-PAC-1200W Power
Cisco N5000 8-Ports Fiber Channel Expansion Module N5K-M1008=
Cisco N2K-C2248TP-1GE Switch Very Good Condition
Cisco N2K-C2232PP-10GE Nexus 2ps 1 Fan Module 32x10ge8x10ge Req Sfp
CISCO MODULES WIC-1SHDSL-V2 Interface Card Fast Shiping
CISCO MODULES HWIC-1ADSL INTERFACE CARD Fast Shiping
CISCO MODULES EVM-HD-8FXS/DID High Density Voice/Fax Mo
CISCO MODULES EM-HDA-6FXO Fast Shiping
CISCO MODULES AIM-APPRE-102-K9
CISCO MODULES AIM-APPRE-102-K9
Cisco MEM2821-256D 256MB DRAM FOR CISCO2821 2821
CISCO ME-C3750-24TE-M CATALYST ME-C3750-24TE-M SWICTH 1 YEAR -GRADE A
CISCO ME-C3750-24TE-M CATALYST ME-C3750-24TE-M SWICTH 1 YEAR -GRADE A
Cisco ME-4924-10GE External Switch Managed 1 Year
Cisco ME-4924-10GE 24-port External Switch
Cisco ME-4924-10GE 24-port External Switch
CISCO ME-3400G-12CS-A Access Switch
CISCO ME-3400EG-2CS-A Switch
CISCO ME-3400EG-2CS-A Switch
Cisco ME-3400-24TS-A Metro Switch w/AC PWR- 1YR - ASK 4 QTY
Cisco ME-3400-24TS-A Metro Switch w/AC PWR- 1YR - ASK 4 QTY
CISCO ME-2400-24TS-A Switch
CISCO LOT WS-X6716-10G-3CXL GRADE A
CISCO LOT WS-X6716-10G-3CXL GRADE A
CISCO LINE CARDS WS-X6548-RJ-21
CISCO LINE CARDS WS-X6548-RJ-21
CISCO LINE CARDS WS-X6548-RJ-21
CISCO LINE CARD EXPANSION MODULE GIGABIT ETHERNET 1000BASE-X 24 WSX4624SFPE
CISCO L-ASA5510-SEC-PL ASA 5510 SECURITY PLUS LICENSE HA VLAN
CISCO L-ASA5510-SEC-PL ASA 5510 SECURITY PLUS LICENSE HA VLAN
CISCO ISR G2 W/SPE/200 4GE 3EHWIC 34SDP WITH SECURITY BUNDLE CISCO3925ESECK9
CISCO ISR G2 2921 ROUTER W/3GE 4 EHWIC PORT CISCO2921K9 CISCO2921/K9
Cisco ISM-SRE-300-K9 SRE 300 Internal Services Module 1941 2901 2921 3945 Router
Cisco IronPort C100 Email Security Appliance Attack Virus And Spam Protection
CISCO IPS IPS-4260-K9
CISCO IPS IPS-4260-K9
CISCO IP PHONE CP-7940
Cisco IP Phone CP-791X-STAND
Cisco IP Communications High-Density Digital Voice/Fax Module NM-HDV2=
Cisco IO-CONTROLR-BLANK
CISCO INTEGRATED SERVICE ROUTER 512MB 1U RACK MOUNTABLE CISCO2901-SEC/K9
Cisco IDS-4215-K9 Intrusion Detection System
Cisco IAD2421-8FXS Router IAD 2421 Analog
CISCO IAD2421-1T1 IAD 2421
CISCO IAD2421-16FXS IAD 2421
CISCO IAD2400 IAD2435-8FXS Router
Cisco HWIC-D-9ESW-POE EtherSwitch Module-WARRANTY
Cisco HWIC-D-9ESW-POE EtherSwitch Module-WARRANTY
Cisco HWIC-D-9ESW Etherswitch 9 Port Interface Card
Cisco HWIC-AP-G-A AP HWIC W 2.4 GHZ RADIO FOR 802.11 B/G AMERICAS
Cisco HWIC-8A 8-PORT ASYNC HWIC MODULE
Cisco HWIC-8A 8-PORT ASYNC HWIC MODULE
CISCO HWIC-4ESW-POE 4-Port EtherSwitch Interface Card
CISCO HWIC-4ESW-POE 4-Port EtherSwitch Interface Card
Cisco HWIC-4ESW 4 PORT 10/100 MODULE
Cisco HWIC-4A/S HighSpeed WAN Card 1YR - ASK 4 QTY
Cisco HWIC-4A/S HighSpeed WAN Card 1YR - ASK 4 QTY
Cisco HWIC-3G-GSM 3GWWAN HWIC-HSDPA/UMTS/EDGE/GPRS-
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