3BHE025541R0101

3BHE025541R0101

3BHE025541R0101

3BHE025541R0101

Cisco WS-C3548-XL-EN Catalyst 3500 48 Port Switch 3548

Cisco WS-C3508G-XL-EN Switch GIGABIT-FastShip

Cisco WS-C2970G-24T-E 2970 2970G 24 Ports Gigabit

Cisco WS-C2970G-24T-E 2970 2970G 24 Ports Gigabit

Cisco WS-C2960S-24TS-L Catalyst WS-C2960S-24TS-L Stackable Ethernet Switch 

CISCO WS-C2960S-24TS-L CATALYST 2960S-24TS SWICTH 1 YEAR  Fast Sh

CISCO WS-C2960S-24TS-L CATALYST 2960S-24TS SWICTH 1 YEAR  Fast Sh

CISCO WS-C2960S-24PS-L Catalyst Switch 

CISCO WS-C2960S-24PS-L Catalyst Switch 

CISCO WS-C2960PD-8TT-L Catalyst Switch 2960PD 

CISCO WS-C2960PD-8TT-L Catalyst Switch 

CISCO WS-C2960PD-8TT-L Catalyst Switch 

CISCO WS-C2960G-8TC-L Catalyst Switch 2960G 

CISCO WS-C2960G-8TC-L Catalyst Switch 2960G 

CISCO WS-C2960G-48TC-L Catalyst Switch 2960G 

CISCO WS-C2960G-48TC-L Catalyst Switch 2960G 

CISCO WS-C2960CPD-8TT-L Catalyst Switch 

CISCO WS-C2960CPD-8TT-L Catalyst Switch 

CISCO WS-C2960CPD-8PT-L Catalyst Switch 

CISCO WS-C2960CG-8TC-L Catalyst Switch 

CISCO WS-C2960CG-8TC-L Catalyst Switch 

Cisco WS-C2955T-12 2955 Ethernet Switch 2955T Fast Ship

Cisco WS-C2955T-12 2955 Ethernet Switch 2955T Fast Ship

CISCO WS-C2950T-24 24 10/100 PORTS W/ 2 10/100/1000BASE-T PORTS ENHANCED IMAGE

Cisco WS-C2950SX-48-SI Switch 2950SX Fast Ship

Cisco WS-C2950ST-8-LRE Switch 2950ST Fast Ship-WRNTY

Cisco WS-C2950ST-24-LRE Switch 2950ST-Warranty

Cisco WS-C2950G-12-EI Switch 2950G Fast Ship-

Cisco WS-C2950-24 Switch 24 Port--Fast Ship

CISCO WS-C2948G-L3 2948G48 10/1002GBIC LAYER 3

Cisco WS-C2940-8TF-S Switch 2940 Fast Ship-

CISCO WS-C2912MF-XL 12-PORT 100BASEFX SWITCH W/2 MODULE SLOTS -ENTERPRISE

Cisco WIC-4ESW 4-Port Ethernet Switch Fast Ship

Cisco WIC-2AM-V2 WAN Interface Card - 

Cisco WIC-2AM-V2 WAN Interface Card - 

Cisco WIC-2AM 2 Port WIC WAN Interface Card Fast Shipp

Cisco WIC-1SHDSL-V3 ONE PORT G.SHDSL WIC WITH 4-WIRE SUPPORT

CISCO WIC-1B-S/T Wan Interface Card Fast Shiping

Cisco WIC-1AM-V2 1-port Analog Modem Interface card

Cisco WIC-1AM Card WAN--FastShip

CISCO WAE-512-K9 WIDE AREA APPLICATION ENGINE 512 1GB MEM

CISCO WAE-512-K9 WIDE AREA APPLICATION ENGINE 512 1GB MEM

CISCO WAE WAE-7341-K9 Application Accelerator  

CISCO VWIC-2MFT-T1-DIR 2 Port Multiflex Trunk Fast Shi

Cisco VWIC-2MFT-T1-DI Voice WAN Interface Card Fast Shi

Cisco VWIC-2MFT-T1 Card VOIP/Data-Fast Ship

Cisco VWIC-2MFT-G703 Voice WAN Interface Card

Cisco VWIC-2MFT-G703 Voice WAN Interface Card

Cisco VWIC2-2MFT-T1/E1 2-PORT 2ND GEN MULTIFLEX TRUNK VOICE/WAN INT. CARD

CISCO VWIC2-2MFT-T1/E1 

CISCO VS-S720-10G-3CXL Supervisor Engine 6500/7600

CISCO VS-S720-10G-3CXL Supervisor Engine 6500/7600

CISCO VS-S720-10G-3CXL Cisco Virtual Switching SUP. Engine 2X 10GIG ETH. PFC3CX

CISCO VS-S720-10G-3CXL Cisco Virtual Switching SUP. Engine 2X 10GIG ETH. PFC3CX

CISCO VS-S2T-10G Cisco Catalyst 6500 Series Supervisor Engine 2T Control

CISCO VS-S2T-10G Cisco Catalyst 6500 Series Supervisor Engine 2T Control

CISCO VS-C6509E-S720-10G 6509E BUNDLE W/VS-S720-10G-3C 

CISCO VS-C6509E-S720-10G 6509E BUNDLE W/VS-S720-10G-3C 

CISCO VIP6-80 VIP6-80 Services Accelerator Fast Shippin

CISCO VIP6-80 VIP6-80 Services Accelerator Fast Shippin

CISCO VIP4-80 VERSATILE INTERFACE PROCESSOR 4-80 Fast S

Cisco VIC-4FXS/DID 4 port Interface Card Fast ShiP

Cisco VIC-2FXO-M1 Voice Interface Card Fast Ship-WRNTY

Cisco VIC-2FXO-M1 Voice Interface Card Fast Ship-WRNTY

Cisco VIC-2FXO TWO-PORT VOICE INTERFACE CARD FXO

Cisco VIC2-4FXO FOUR-PORT VOICE INTERFACE CARD FXO 

Cisco VIC2-2FXO TWO-PORT VOICE INTERFACE CARD FXO UNIVERSAL

CISCO VG248 48 PORT VOICE OVER IP ANALOG PHONE GATEWAY

CISCO VG200 VOICE OVER IP ANALOG PHONE GATEWAY

Cisco VCO/4K VCO-IO-E1-4 Four Span E1 I/O Module 

Cisco VCO 4K IPRC128 160 Port T1 Switch VCO/4K 90   Need to move

Cisco VCO 4K 24 T1 Dual DC Open Programmable Switch 90  Free Ship

Cisco Unified IP Phone 7960 CP-7960 VoIP Phone 

Cisco UCS B440-BASE-M2 High-Performance Blade Server W/ 4 x UCS-CPU-E72870 

CISCO UC520-8U-4FXO-K9 UC 520 VOIP Gateway

CISCO UC520-8U-4FXO-K9 UC 520 VOIP Gateway

CISCO UC320W-FXO-K9  SMALL BUSINESS UNIFIED COMMUNICATIONS 320 WITH 4FXO

CISCO UC320W-FXO-K9  SMALL BUSINESS UNIFIED COMMUNICATIONS 320 WITH 4FXO

Cisco uBR7246VXR Universal Broadband Router Chassis w/ 1 Year Wtny

CISCO UBR7114 Router AC 

CISCO SYSTEMS UCS 2104XP FABRIC EXTENDER 4 10G N20-I6584

CISCO SUPERVISOR ENGINE 6L-E CONTROL PROCESSOR 2-PORTS 10 WS-X45-SUP6L-E

Cisco SSM-4GE Security Services Module Expansion module 4 ports w/ 1 Year Wtny

Cisco SSM-4GE Security Services Module Expansion module 4 ports

Cisco SSM-4GE expansion module 4-PT 1000BT SSM 1YearWrnt 2XAvlb ASK MORE QTY

CISCO SSM-4GE ASA 5500 Four-Port Gigabit Ethernet Module AVL

CISCO SSM-4GE ASA 5500 4-Port Gigabit Ethernet Module

CISCO SSM-4GE 

Cisco SRW248G4P Switch POE FastShip-WRNTY

Cisco SRW248G4P Switch POE FastShip-WRNTY

CISCO SRP547W-A-K9  SRP547 ADSL2 ANNEXA 802.11N FCC 4FXS/1FXO

CISCO SRP547W-A-K9  SRP547 ADSL2 ANNEXA 802.11N FCC 4FXS/1FXO

CISCO SRP521W-K9-G1  SRP521 FE WAN 11N FCC 2FXS/1FXO US POWER

CISCO SR224T SF 24PORT 10/100 100-24 SWITCH WITH QOS 

CISCO SR224GT SF 24PORT 10/100 102-24 SWITCH WITH GIGABIT UPLINKS

CISCO SR2024T SG 24PORT 100-24 GIGABIT SWITCH

CISCO SR2024T SG 24PORT 100-24 GIGABIT SWITCH

CISCO SR2024CT SMALL BUSINESS 5PORT DT SWITCH 10/100/ 1000GB

CISCO SPA-OC192POS-XFP 1-PORT OC192/STM64 POS/RPR XFP OPTICS

CISCO SPA-OC192POS-XFP 1-PORT OC192/STM64 POS/RPR XFP OPTICS

CISCO SPA-OC192POS-VSR Adapter

CISCO SPA-OC192POS-VSR Adapter

Cisco SPA-IPSEC-2G IPSEC SPA WITH 2 GBPS DES/3DES/AES

Cisco SPA962 6-Line IP Phone with 2-Port Switch

CISCO SPA-8XOC3-POS 8-PORT OC-3/STM-1 ADAP. Fast Shippi

CISCO SPA-8X1GE 8 Gigabit Ethernet Port Adapter Fast Sh

CISCO SPA-8X1GE 8 Gigabit Ethernet Port Adapter Fast Sh

Cisco SPA-5X1GE-V2 5 Port Gigabit Adapter Fast

CISCO SPA-5X1GE 5-PORT GIGABIT ETHERNET SHARED PORT ADA

CISCO SPA-5X1GE 5-PORT GIGABIT ETHERNET SHARED PORT ADA

CISCO SPA-5X1GE 5-PORT GIGABIT ETHERNET SHARED PORT ADA

CISCO SPA-4XT-SERIAL CISCO 4 PORT SERIAL SPA

CISCO SPA-4XT-SERIAL CISCO 4 PORT SERIAL SPA

CISCO SPA-4XT3/E3 4-Port Clear Channel T3/E3 Module 1YR - ASK 4 QTY

CISCO SPA-4XT3/E3 4-Port Clear Channel T3/E3 Module 1YR - ASK 4 QTY

CISCO SPA-4XOC48POS/RPR 4-PORT OC48/STM16 POS RPR SHARED PORT ADAPTERS Fast Ship

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