SGDH-08AES-OY _大德汇成科技（厦门）有限公司

SGDH-08AES-OY

RSP720-3CXL-GE Cisco Route Switch Processor 720-3CXL Router

RSP720-3CXL-10GE Cisco Route Switch Processor 720 with 10 Gigabit EN uplin

RSP720-3C-GE Cisco Route Switch Processor 720-3C Router

RSP720-3C-10GE Cisco Switch Processor 720 W/10 Gigabit EN uplinks Router

RSP720-3C-10GE Cisco Route Switch Processor 720 with 10 Gigabit EN uplinks Rout

RSP-16 CISCO 7500 ROUTE SWITCH PROCESSOR 16 SPARE

RS Rohde Schwarz SMJ100A-B106 loaded w/ options

RPS MKS ASTRON AX7685 GENERATOR

Roland V-SYNTHGT

Roland VS-20 VS20 V-Studio 20 V-Studio 20 Audio Interface/Control Surface

Roland VG-99 V-Guitar Multi Effects Processor System with GK-3 Pickup

Roland VG-99 V-Guitar Multi Effects Processor System

Roland VG-99 V-Guitar COSM Modeling And Performance System w/ FX USB

Roland VG-99 Mult System Effects Modeling Processor System V-Guitar

Roland UA-1010 Octa-Capture Audio Interface Producer X2 Upgrade Bundle

Roland SONAR V-Studio 700 System CERTIFIED FROM DEALER to USA

roland prelude 61 key keyboard in VG CONDITION

Roland M-480V System 58 inputs x 26 outputs

ROLAND JV-1080 SUPER JV SYNTHESIZER SOUND MODULE JV1080

Roland Fantom XR SRX-05 upgraded 128-Voice Synthesizer / Sampler Module-MIDI 2

Roland fantom XR

Rockwell Automation SCR Scaling Bridge Module SD3000 Plus SD3K-SCLR400 97324971

ROBOTRON 503-1-0324-19 USPP 5031032419

ROBOTRON 503-1-0324-17 USPP 5031032417

Robotron 503-1-0324-16 5031032416 I/O Module Rev E1

Robotron 503-1-0324-16 5031032416 I/O Module Refurbished

Robotron 503-1-0324-16 5031032416 I/O Module No Box

ROBOTRON 503-1-0324-15 USPP 5031032415

ROBOTRON 503-1-0324-12 USPP 5031032412

ROBOTRON 503-1-0324-07 USPP 5031032407

RME HDSPEMADI 24Bit 96K Channel PCIE Card

RME HDSPe PCI Interface BRAND with 2 YEAR

RME HDSPE PCI EXPRESS CARD INTERFACE MULTIFACE DIGI

RME HDSPE PCI EXPRESS CARD

RME HAMMERFALL HDSP AES-32- PROAUDIOSTAR

RME HAMMERFALL HDSP 9632 HDSP9632 PCI SOUND CARD

RME HAMMERFALL HDSP 9632 AUDIO INTERFACE SOUND CARD

RME FireFace800 Fireface 800 PROAUDIOSTAR

RME FireFace800 Fireface 800 Avid Pro-Tools 10 PROAUDIOSTAR

RME Audio Fireface 800 Authorized Dealer FREE SHIP

RIS TM-2482-P13-000-P2-00-RE-00 TEMPERATURE MONITOR 117

RIGOL VS5042 40Mhz Virtual Digital Oscilloscope

Rigol Function/Arbitrary Waveform Generators DG3121A

Rigol Function/Arbitrary Waveform Generators DG3061A

Rigol Function/Arbitrary Waveform Generators DG2041A

Rigol Function/Arbitrary Waveform Generators DG2041 40M with

Rigol Function/Arbitrary Waveform Generator DG2041A 40M

Rigol Digital Color Oscilloscope 60MHz dual CH DS1062CA

Rigol Digital Color Oscilloscope 100M dual CH DS1102CD

RFL ELECTRONICS 9745 POWER SUPPLY "REPAIR" BOARD 105908

REXROTH R-412-003-489 NSFP R412003489

Rexroth Indracontrol L40 CML40.1-NP-220-NA-NNNN-NW

REXROTH 1070079749 USPP 1070079749

REXROTH 0-608-830-166 NSPP 0608830166

Rev 2.01a SuperMicro H8DAE-2 Bulk Pack MB Support Six Core CPU

Rev 2.01 SuperMicro H8DAE-2 Bulk Pack MB Support Quad / Dual Core CPU

Rev 1.11 SuperMicro PDSBA Bulk Pack MB FULL MFR

Rev 1.1 SuperMicro H8DAE-2 Bulk Pack MB Support Dual Core CPU

Retail Box LSI MR SAS 9261-8i 6GB SAS RAID

REMOTE I/O ADAPTER MODULE PLC 2/3/5 1771-ASB PLC-5

REMOTE I/O ADAPTER MODULE 1771-ASB B 1771 ASB B 5V CNC ALLEN BRADLEY A-B

REMAN Allen Bradley 1794-IT8 /A 1794-1T8 Flex I/O Analog Input

REMAN Allen Bradley 1756-L62 /B ControlLogix Processor 4MB

REMAN Allen Bradley 1756-HSC /A ControlLogix High Speed Counter

REMAN Allen Bradley 1746-NR4 /B SLC 500 RTD/Resistance Input

Reliance Shark 57C554 Remote I/O Interface 57C-554

Reliance Shark 45C965 Triac Output Module 45C-965

RELIANCE REMOTE I/O COMMUNICATIONS MODULE 57404-1E

Reliance Electric Remote I/O Interface 45C37B

Reliance Electric O-57405-C O57405C I/O Analog Module Refurbished

RELIANCE ELECTRIC I/O PROCESSOR MODULE 45C200A

Reliance Electric Drive Digital I/O Module O-57401-2

Reliance Electric Drive Digital I/O Module 57401-2

RELIANCE ELECTRIC B/M-60031-4 USPP BM600314

RELIANCE ELECTRIC B/M-60031-4 NSPP BM600314

Reliance Electric Automax Remote I/O Interface Module 57C554

Reliance Electric Automate 45C270 8K MEMORY EXPANSION

RELIANCE ELECTRIC AUTOMATE 45C1 I/O RAIL W/ 8 MODULES 1

Reliance Electric Analog Input Module 57C409 factory

RELIANCE ELECTRIC 86474S RECTIFIER STACK REMANNED

RELIANCE ELECTRIC 80281702RA USPP 80281702RA

RELIANCE ELECTRIC 65C-500 USPP 65C500

Reliance Electric 61C351A Analog I/O

RELIANCE ELECTRIC 61C-350 USPP 61C350

RELIANCE ELECTRIC 57C-443A USPP 57C443A

RELIANCE ELECTRIC 57C-443 USPP 57C443

RELIANCE ELECTRIC 57C-433 USPP 57C433

RELIANCE ELECTRIC 57C-433 NSFP 57C433

Reliance Electric 57C416 0 Remote I/O Comm Mod 0-57416-T No Box

Reliance Electric 57C401 Module 0-57401-2 Rev

RELIANCE ELECTRIC 57C-328 USPP 57C328

RELIANCE ELECTRIC 57416-S REMOTE I/O COMMUNICATIONS MODULE 57C416

Reliance Electric 57405-E 57405E Analog I/O Drive Module Refurbished

Reliance Electric 57405-E 0- 57405E Analog I/O Drive Module

Reliance Electric 45C961 Output Module XLNT

RELIANCE ELECTRIC 45C-410A USPP 45C410A

RELIANCE ELECTRIC 45C-201C USPP 45C201C

RELIANCE ELECTRIC 45C-201A USPP 45C201A

RELIANCE ELECTRIC 45C-200A USPP 45C200A

RELIANCE ELECTRIC 45C-200 USPP 45C200

RELIANCE ELECTRIC 0-60031-4B USPP 0600314B

RELIANCE ELECTRIC 0-60031-4 USPP 0600314

MODICON AS-B805-016 AC INPUT MODULE 16 POINT

Modicon AS-B805-016 115VAC Input Module

Modicon AS-B805-016 115 VAC Input Module

MODICON AS-B805-016 INPUT MODULE

Modicon AS-B805-000 ASB805000 Input Module Rev B

电子技术是十九世纪末到二十世纪初开始发展起来的新兴技术，二十世纪发展迅速，应用广泛，成为近代科学技术发展的一个重要标志。在十八世纪末和十九世纪初的这个时期，由于生产发展的需要，在电磁现象方面的研究工作发展得很快，1785年法国科学家库伦由实验得出电流的库仑定律。1895 年，荷兰物理学家亨得里克·安顿·洛伦兹假定了电子存在。1897年，英国物理学家汤姆逊（J.J.Thompson）用试验找出了电子。1904年，英国人J.A.Fleming 发明了简单的二极管(diode或 valve)，用于检测微弱的无线电信号。 1906 年，L.D.Forest 在二极管中安上了第三个电极（栅极，grid）发明了具有放大作用的三极管，这是电子学早期历史中重要的里程碑。1948 年美国贝尔实验室的几位研究人员发明晶体管。1958 年集成电路的第一个样品见诸于世。集成电路的出现和应用，标志着电子技术发展到了一个新的阶段。

电子技术研究的是电子器件及其电子器件构成的电路的应用。半导体器件是构成各种分立、集成电子电路基本的元器件。随着电子技术的飞速发展，各种新型半导体器件层出不穷。现代电力电子技术的发展方向，是从以低频技术处理问题为主的传统电力电子学，向以高频技术处理问题为主的现代电力电子学方向转变。电力电子技术起始于五十年代末六十年代初的硅整

电子产品

流器件，其发展先后经历了整流器时代、逆变器时代和变频器时代，并了电力电子技术在许多新领域的应用。八十年代末期和九十年代初期发展起来的、以功率MOSFET和IGBT为代表的、集高频、高压和大电流于一身的功率半导体复合器件，表明传统电力电子技术已经进入现代电力电子时代。

MODICON AS-B573-015 ANALOG INPUT MODULE ASB573015

MODICON AS-B571-001 INPUT MODULE REPAIRED

Modicon AS-B553-101 Input Module 9-56 VDC H15 860

MODICON AS-B553 INPUT MODULE

MODICON AS-B353-00ASB3530024 VDC INPUT MODULE TRUE LOW

MODICON AS-B351-00INPUT MODULE Q1-5

MODICON AS-B351-001 PLC MODULES INPUT 115VAC GOULD

MODICON AS-B351-001 INPUT MODULE NIB

Modicon AS-B351-001 115VAC Input Module

MODICON AS-B350-001 INPUT MODULE

MODICON AS-B275-501 10-60 VDC INPUT MODULE GOOD TAKEOUT

MODICON AS-B243-110 INPUT MODULE ANALOG

MODICON AS-B237-001 INPUT MODULE 16POINT 5V TTL ASB237001

Modicon Analog Input Module Multiplex AS-B846-002

MODICON ANALOG INPUT MODULE MFG. PART B875-011

MODICON ANALOG INPUT MODULE B573-015

MODICON ANALOG INPUT MODULE AS-B873-001

MODICON ANALOG INPUT MODULE AS B873 001

MODICON AEG ISOLATED INPUT MODULE AS-B817-116 ASB817116 115V

Modicon AEG Input Module Relay DAP-208

Modicon AEG Input Module DI-1131-000

MODICON AEG INPUT MODULE AS-B827-032 ASB827-032

Modicon AEG B827 24VDC Input ModuleAS-B827-032

MODICON AEG AS-B357-001 24VDC Input Module

Modicon AEG AS B827 032 Input Module ASB827032

MODICON AEG ANALOG INPUT MODULE AS-B875-111 ASB875111

MODICON AEG 800 I/O 24VDC TRU HI INPUT MODULE AS-B827-032 ASB827032

Modicon AC INPUT MODULE 16 POINT 115VACNIB

MODICON 984 CONTROLLER B827 INPUT B838 OUTPUT DATALOGIC CM1000 MODULES

Modicon 24v DC Input Module Model B353

Modicon 24 Volt Input Module PartAS-B837-016

Modicon 16 Point Input Module B804

Modicon 140DDI35300 Input Module

Modicon 140DDI35300 32 Point Input Module

MODICON 140-DD1-841-00 INPUT MODULE

Modicon 140DAI75300 Input Module 240VAC 140 DAI 753 00

MODICON 140-DAI-353-00 140DAI35300 INPUT MODULE 24V

Modicon 115VAC Input Module B231

MODICON 115V INPUT MODULE AS-B805-016

Modicon 115V AC Input Module Model AS-B351-001

MODICON +5VTTL INPUT MODULE B237 LR32678

MODICON +5VTTL INPUT MODULE B237

Modicon +24VDC Input Module AS-B233-001

Model: IAC5Q 4-Channel AC Input Module

Model: G4 IDC5D Input Module. 5 Volt Logic 2.5-28 VDC Input

MODEL G4IDC5 INPUT MODULE 10-32VDC IN 5VDC

MODEL AD6 I/O MODULE 0-5V INPUT

Model AD3T I/O Module Input Output module s22-4

MM4051 Mighty Module Strain Gauge Input Transmitter NIB

MitsubishiI A15X41 12/24 Input Module

Mitsubishi: PLC Input Unit Module Part A1SX41-S2

Mitsubishi ST1X2-DE1 ST1X2DE1 Input Module

MITSUBISHI QX535 INPUT/OUTPUT MODULE

MITSUBISHI QX42 INPUT UNIT MODULE MELSEC-Q 24VDC 4mA

MITSUBISHI QX42 INPUT MODULE GOOD TAKEOUT

Mitsubishi Q64RD 4-Channel Analog Input RTD Module with manual

Mitsubishi Q2AS CPU with Input and output modules and Power Supply

MITSUBISHI PLC INPUT MODULE DC SINK 12/24V AX42

Mitsubishi PLC Analog Input Module Q68ADI

Mitsubishi PLC Analog Input Module FX2N-32MR FX2N-4AD Working

MITSUBISHI MR-P20 DIO SERVO INPUT MODULE

Mitsubishi- MELSECFX2N-8AD8 Point Analog Input Module

Mitsubishi- MELSECFX2N-4AD-PT4 Point Temperature Input module

MITSUBISHI MELSEC SERIES A MODEL AX41 INPUT MODULE

MITSUBISHI MELSEC Q QX41S1 INPUT MODULE

MITSUBISHI MELSEC Q QH42P INPUT OUTPUT MODULE

MITSUBISHI MELSEC Q Q64RD RTD INPUT MODULE

MITSUBISHI MELSEC Q Q64AD ANALOG INPUT MODULE

MITSUBISHI MELSEC PROGRAM CONTROLLER INPUT MODULE AX41

MITSUBISHI MELSEC PLC INPUT MODULE DC SINK 12/24V AX42

MITSUBISHI MELSEC PLC AX42 INPUT MODULE

Mitsubishi Melsec Model A1SX42 DC Sink Input Module 64 Port 12/24 VDC 2/5 mA

MITSUBISHI MELSEC INPUT UNIT MODULE AX41C

MITSUBISHI MELSEC INPUT OUTPUT MODULE AX40Y50C

MITSUBISHI MELSEC INPUT MODULE CIRCUIT BOARD AX41

MITSUBISHI MELSEC INPUT MODULE AX41C

Mitsubishi MELSEC Input Module AX40 A6SW16

MITSUBISHI MELSEC INPUT MODULE AX11 AX-11 AC 100V 10mA

Mitsubishi MELSEC Input Module AX11

MITSUBISHI MELSEC INPUT MODULE A0J2-E32D AOJ2-E32D

Mitsubishi Melsec Input Module 24VDC A1SX81-S2 3768

Mitsubishi Melsec FXon-16EX Input Module In:24 VDC 5 mA Serial No. 895684

MITSUBISHI MELSEC FX2N-4AD-TC ANALOG INPUT MODULE

MITSUBISHI MELSEC F-20ER Input/Output Module

Mitsubishi Melsec DC input Module A1SX80 12/24VDC

Mitsubishi Melsec AX42 PLC Input Module

Mitsubishi Melsec AX42 Input Module

Mitsubishi MELSEC AX41C Input Module 12/24 VDC

MITSUBISHI MELSEC AX41C INPUT MODULE

Mitsubishi Melsec AX41C Input Module

Mitsubishi MELSEC AX41 32 pt DC Input Module

Mitsubishi MELSEC AX41 32 Point Input Module XLNT

Mitsubishi MELSEC AX41 32 Point Input Module 12/24 VDC

MITSUBISHI MELSEC AX40Y50C INPUT OUTPUT MODULE

Mitsubishi Melsec AX40Y10C Input/Output PLC Module

Mitsubishi Melsec AX11C PLC Input Module

Mitsubishi Melsec AX10Y10C Input/Output PLC Module