Siemens is a German multinational technology conglomerate founded in 1847 by Werner von Siemens and Johann Georg Halske. The company has evolved from its origins in telegraph technology to become a global leader in industrial automation, distributed energy resources, rail transport, and health technology. With its headquarters in Munich and Berlin, Siemens operates in over 190 countries and employs approximately 320,000 people worldwide. The company is known for its innovative solutions in various sectors, including construction, business, and financing services, and has made significant contributions to the development of electrical equipment, medical devices, and industrial software. Despite facing challenges related to corruption and mismanagement in the past, Siemens continues to be a major player in the technology industry, with subsidiaries like Siemens Healthineers and Siemens Energy, and a strong commitment to innovation and sustainability.
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Industrial Automation and Controls
Controllers - Liquid, Level Panel Meters Human Machine Interface (HMI) - Accessories Pneumatics, Hydraulics Controllers - Process, Temperature Time Delay Relays Protection Relays & Systems Controllers - Accessories Controllers - Programmable Logic (PLC) Controllers - Machine Safety Industrial Equipment Monitor - Relay Output Controllers - PLC Modules Accessories Controllers - Cable Assemblies Specialized Lighting Control Human Machine Interface (HMI)Motors, Solenoids, Driver Boards/Modules
Circuit Protection
Switches
Rotary Switches Accessories - Boots, Seals Configurable Switch Components - Body Toggle Switches Pushbutton Switches Configurable Switch Components - Lens Snap Action, Limit Switches Keylock Switches Selector Switches Navigation Switches, Joystick Accessories - Caps DIP Switches Rocker Switches Configurable Switch Components - Contact Block Cable Pull Switches Configurable Switch Components - Illumination Source Accessories Disconnect Switch ComponentsRelays
Audio Products
Optoelectronics
Addressable, Specialty Panel Indicators, Pilot Lights Fiber Optics - Transceiver Modules Infrared, UV, Visible Emitters Lamps - Incandescents, Neons Display Modules - LED Character and Numeric LED Indication - Discrete LEDs - Circuit Board Indicators, Arrays, Light Bars, Bar Graphs Fiber Optics - Transmitters - Discrete LED Lighting - White Optics - Lenses Inverters Laser Diodes, Modules Display Modules - LED Dot Matrix and Cluster Accessories LED Lighting - COBs, Engines, Modules, Strips LEDs - Lamp ReplacementsDevelopment Boards, Kits, Programmers
Sensors, Transducers
Accessories Optical Sensors - Phototransistors Proximity Sensors Float, Level Sensors Optical Sensors - Photoelectric, Industrial Temperature Sensors - PTC Thermistors Temperature Sensors - Analog and Digital Output Solar Cells Gas Sensors Current Sensors Specialized Sensors Multifunction Optical Sensors - Photodiodes Magnetic Sensors - Position, Proximity, Speed (Modules) Temperature Sensors - NTC Thermistors Sensor Interface - Junction Blocks Proximity/Occupancy Sensors - Finished Units Flow Sensors Force Sensors Strain Gauges Pressure Sensors, TransducersBoxes, Enclosures, Racks
Transformers
Cable Assemblies
Connectors, Interconnects
Heavy Duty Connectors - Accessories Barrel - Audio Connectors Terminal Blocks - Interface Modules Rectangular Connectors - Contacts Terminal Blocks - Specialized Blade Type Power Connectors Coaxial Connectors (RF) Terminals - Ring Connectors USB, DVI, HDMI Connectors Memory Connectors - PC Card Sockets Circular Connectors Terminal Blocks - Din Rail, Channel Terminal Blocks - Wire to Board Terminal Blocks - Adapters Modular Connectors - Adapters Terminal Blocks - Accessories - Marker Strips Fiber Optic Connectors Terminal Blocks - Barrier Blocks Modular Connectors - Jacks Memory Connectors - Accessories D-Sub Connectors Terminal Blocks - Headers, Plugs and Sockets Terminal Blocks - Accessories Sockets for ICs, Transistors Keystone - Inserts Power Entry Connectors - Inlets, Outlets, Modules USB, DVI, HDMI Connectors - AccessoriesHardware, Fasteners, Accessories
Discrete Semiconductor Products
Transistors - Special Purpose Transistors - Bipolar (BJT) - RF Transistors - FETs, MOSFETs - Arrays Diodes - RF Diodes - Bridge Rectifiers Diodes - Zener - Single Transistors - Bipolar (BJT) - Single Transistors - FETs, MOSFETs - RF Diodes - Variable Capacitance (Varicaps, Varactors) Diodes - Rectifiers - Arrays Transistors - IGBTs - Single Diodes - Rectifiers - Single Transistors - FETs, MOSFETs - SingleIntegrated Circuits (ICs)
Interface - Analog Switches - Special Purpose Interface - Telecom Embedded - DSP (Digital Signal Processors) Embedded - Microprocessors Logic - Gates and Inverters PMIC - Voltage Regulators - Linear Embedded - Microcontrollers Interface - Controllers Interface - Modules Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps PMIC - Voltage Regulators - Linear + Switching PMIC - Power Distribution Switches, Load Drivers PMIC - Power Supply Controllers, Monitors Interface - Specialized Embedded - Microcontrollers - Application Specific Specialized ICs Interface - Drivers, Receivers, Transceivers Audio Special Purpose Linear - Amplifiers - Special Purpose MemoryNetworking Solutions
Fans, Thermal Management
Potentiometers, Variable Resistors
RF/IF and RFID
Cables, Wires
Inductors, Coils, Chokes
Filters
Line Protection, Distribution, Backups
Test and Measurement
Capacitors
Cables, Wires - Management
Resistors
Power Supplies - Board Mount
Power Supplies - External/Internal (Off-Board)
Kits
Isolators
Tools
Computer Equipment
Magnetics - Transformer, Inductor Components
Memory Cards, Modules
Labels, Signs, Barriers, Identification
Battery Products
Crystals, Oscillators, Resonators
Soldering, Desoldering, Rework Products
Maker/DIY, Educational
Prototyping, Fabrication Products
Industrial Automation and Controls
- Controllers - Liquid, LevelPanel MetersHuman Machine Interface (HMI) - AccessoriesPneumatics, HydraulicsControllers - Process, TemperatureTime Delay RelaysProtection Relays & SystemsControllers - AccessoriesControllers - Programmable Logic (PLC)Controllers - Machine SafetyIndustrial EquipmentMonitor - Relay OutputControllers - PLC ModulesAccessoriesControllers - Cable AssembliesSpecializedLighting ControlHuman Machine Interface (HMI)
Motors, Solenoids, Driver Boards/Modules
- Motor Driver Boards, ModulesStepper MotorsMotors - AC, DCAccessories
Circuit Protection
- FusesCircuit BreakersElectrical, Specialty FusesTVS - Varistors, MOVsGas Discharge Tube Arresters (GDT)AccessoriesThermal Cutoffs (Thermal Fuses)Ground Fault Circuit Interrupter (GFCI)TVS - DiodesPTC Resettable FusesFuseholders
Switches
- Rotary SwitchesAccessories - Boots, SealsConfigurable Switch Components - BodyToggle SwitchesPushbutton SwitchesConfigurable Switch Components - LensSnap Action, Limit SwitchesKeylock SwitchesSelector SwitchesNavigation Switches, JoystickAccessories - CapsDIP SwitchesRocker SwitchesConfigurable Switch Components - Contact BlockCable Pull SwitchesConfigurable Switch Components - Illumination SourceAccessoriesDisconnect Switch Components
Relays
- Power Relays, Over 2 AmpsSafety RelaysContactors (Electromechanical)Reed RelaysSignal Relays, Up to 2 AmpsAccessoriesRelay SocketsSolid State Relays
Audio Products
- Vacuum TubesAlarms, Buzzers, and SirensAccessoriesSpeakers
Optoelectronics
- Addressable, SpecialtyPanel Indicators, Pilot LightsFiber Optics - Transceiver ModulesInfrared, UV, Visible EmittersLamps - Incandescents, NeonsDisplay Modules - LED Character and NumericLED Indication - DiscreteLEDs - Circuit Board Indicators, Arrays, Light Bars, Bar GraphsFiber Optics - Transmitters - DiscreteLED Lighting - WhiteOptics - LensesInvertersLaser Diodes, ModulesDisplay Modules - LED Dot Matrix and ClusterAccessoriesLED Lighting - COBs, Engines, Modules, StripsLEDs - Lamp Replacements
Development Boards, Kits, Programmers
- AccessoriesSoftware, Services
Sensors, Transducers
- AccessoriesOptical Sensors - PhototransistorsProximity SensorsFloat, Level SensorsOptical Sensors - Photoelectric, IndustrialTemperature Sensors - PTC ThermistorsTemperature Sensors - Analog and Digital OutputSolar CellsGas SensorsCurrent SensorsSpecialized SensorsMultifunctionOptical Sensors - PhotodiodesMagnetic Sensors - Position, Proximity, Speed (Modules)Temperature Sensors - NTC ThermistorsSensor Interface - Junction BlocksProximity/Occupancy Sensors - Finished UnitsFlow SensorsForce SensorsStrain GaugesPressure Sensors, Transducers
Boxes, Enclosures, Racks
- Evaluation, Development Board EnclosuresBoxesBox AccessoriesBox ComponentsRack Thermal ManagementHandlesRack AccessoriesRacks
Cable Assemblies
- Pluggable CablesD-Sub CablesUSB CablesCircular Cable AssembliesFlat Flex Cables (FFC, FPC)Power, Line Cables and Extension CordsCoaxial Cables (RF)Fiber Optic CablesVideo Cables (DVI, HDMI)Modular CablesBetween Series Adapter Cables
Connectors, Interconnects
- Heavy Duty Connectors - AccessoriesBarrel - Audio ConnectorsTerminal Blocks - Interface ModulesRectangular Connectors - ContactsTerminal Blocks - SpecializedBlade Type Power ConnectorsCoaxial Connectors (RF)Terminals - Ring ConnectorsUSB, DVI, HDMI ConnectorsMemory Connectors - PC Card SocketsCircular ConnectorsTerminal Blocks - Din Rail, ChannelTerminal Blocks - Wire to BoardTerminal Blocks - AdaptersModular Connectors - AdaptersTerminal Blocks - Accessories - Marker StripsFiber Optic ConnectorsTerminal Blocks - Barrier BlocksModular Connectors - JacksMemory Connectors - AccessoriesD-Sub ConnectorsTerminal Blocks - Headers, Plugs and SocketsTerminal Blocks - AccessoriesSockets for ICs, TransistorsKeystone - InsertsPower Entry Connectors - Inlets, Outlets, ModulesUSB, DVI, HDMI Connectors - Accessories
Hardware, Fasteners, Accessories
- KnobsScrews, BoltsMiscellaneousHingesBearingsDIN Rail ChannelBoard Spacers, Standoffs
Discrete Semiconductor Products
- Transistors - Special PurposeTransistors - Bipolar (BJT) - RFTransistors - FETs, MOSFETs - ArraysDiodes - RFDiodes - Bridge RectifiersDiodes - Zener - SingleTransistors - Bipolar (BJT) - SingleTransistors - FETs, MOSFETs - RFDiodes - Variable Capacitance (Varicaps, Varactors)Diodes - Rectifiers - ArraysTransistors - IGBTs - SingleDiodes - Rectifiers - SingleTransistors - FETs, MOSFETs - Single
Integrated Circuits (ICs)
- Interface - Analog Switches - Special PurposeInterface - TelecomEmbedded - DSP (Digital Signal Processors)Embedded - MicroprocessorsLogic - Gates and InvertersPMIC - Voltage Regulators - LinearEmbedded - MicrocontrollersInterface - ControllersInterface - ModulesLinear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsPMIC - Voltage Regulators - Linear + SwitchingPMIC - Power Distribution Switches, Load DriversPMIC - Power Supply Controllers, MonitorsInterface - SpecializedEmbedded - Microcontrollers - Application SpecificSpecialized ICsInterface - Drivers, Receivers, TransceiversAudio Special PurposeLinear - Amplifiers - Special PurposeMemory
Networking Solutions
- Media ConvertersSwitches, HubsAccessoriesMiscellaneousGateways, RoutersSerial Device Servers
Fans, Thermal Management
- AC FansDC Brushless Fans (BLDC)
Potentiometers, Variable Resistors
- AccessoriesRotary Potentiometers, Rheostats
RF/IF and RFID
- RF AccessoriesRFID AccessoriesRF MixersRFID Transponders, TagsRF Transceiver ModulesRF AntennasRF Receiver, Transmitter, and Transceiver Finished Units
Inductors, Coils, Chokes
- Fixed Inductors
Line Protection, Distribution, Backups
- Uninterruptible Power Supply (UPS) SystemsPower Distribution, Surge ProtectorsAccessories
Test and Measurement
- Test Leads - Banana, Meter InterfaceEquipment - Environmental TestersAccessoriesTest Probe Tips
Capacitors
- Ceramic CapacitorsThin Film CapacitorsAluminum Electrolytic CapacitorsTantalum CapacitorsFilm Capacitors
Cables, Wires - Management
- Cable Ties - Holders and MountingsBushings, GrommetsCable and Cord GripsLabels, LabelingMarkersCold Shrink Tape, TubingAccessoriesCable Supports and FastenersWire Ducts, Raceways
Power Supplies - Board Mount
- DC DC ConvertersAC DC Converters
Power Supplies - External/Internal (Off-Board)
- Power over Ethernet (PoE)AccessoriesAC DC Converters
Tools
- Specialized ToolsAccessoriesAssorted Tool KitsSockets - SetsPliersFiber Optics and AccessoriesScrew and Nut DriversWrenchesKnives, Cutting ToolsSockets, Socket HandlesFlashlights
Computer Equipment
- KeyboardsAdapters, ConvertersAccessoriesMonitorsAdapter Cards
Magnetics - Transformer, Inductor Components
- Bobbins (Coil Formers), Mounts, HardwareFerrite Cores
Memory Cards, Modules
- SpecializedMemory Cards
Labels, Signs, Barriers, Identification
- Labels, Stickers, Decals - BlankSigns, Nameplates, PostersLabels, Stickers, Decals - Preprinted
Battery Products
- Accessories
Crystals, Oscillators, Resonators
- Crystals
Soldering, Desoldering, Rework Products
- SolderSoldering, Desoldering, Rework Tips, Nozzles
Maker/DIY, Educational
- Robotics KitsEducational Kits
Prototyping, Fabrication Products
- Solderless Breadboards
