Switches
A switch is a device that allows electricity to flow through a circuit by completing or interrupting the connection. It is a common component in electrical and electronic systems and is used in a variety of applications, such as controlling the flow of electricity in a circuit, turning devices on and off, and routing electrical signals. One of the primary use cases for switches is to control the flow of electricity in a circuit. This can be done by manually flipping the switch or by using a control mechanism, such as a timer or a sensor. Another common use for switches is to turn devices on and off. This can be done using a switch that is built into the device or by using a separate switch that is connected to the device. In addition to these basic use cases, switches can also be used to route electrical signals. For example, a switch can be used to route a signal from one device to another or to direct a signal to a specific circuit or component. If you're looking for a wide variety of switches for your projects, flux.ai has the world's largest community-driven public library of them. The library includes footprints, symbols, datasheets, and simulation models for a wide range of switches, making it easy to find the right switch for your needs.
MCH3478-TL-H
N-Channel Power MOSFET – 30 V N-channel enhancement-mode MOSFET optimized for load switching, DC-DC converters, battery-powered devices, power management, motor control, and embedded switching applications. Features a 30 V drain-to-source voltage (VDS), 2 A continuous drain current, and 165 mΩ maximum RDS(on) at VGS = 4.5 V, with 1.8 V logic-level gate drive compatibility for low-voltage microcontroller interfaces. Offers 1.7 nC typical gate charge, 130 pF typical input capacitance, ultra-fast switching performance, and an integrated body diode for efficient power conversion. Rated for ±12 V gate-to-source voltage, 800 mW power dissipation, 150°C maximum junction temperature, and housed in a 3-pin MCPH3 (SC-70 / SOT-323) surface-mount package. This device is obsolete / not recommended for new designs. #onsemi #MCH3478TLH #MCH3478 #NChannelMOSFET #LogicLevelMOSFET #PowerMOSFET #LoadSwitch #DCDCConverter #PowerManagement #MotorDriver #SOT323 #EmbeddedSystems
2 Uses0 StarsSS36-E3/9AT
Schottky Barrier Rectifier Diode – 3 A Schottky rectifier diode optimized for switch-mode power supplies (SMPS), DC-DC converters, reverse polarity protection, freewheeling, OR-ing circuits, and general power management applications. Features a 60 V repetitive peak reverse voltage (VRRM), 3 A average forward current (IF(AV)), and 750 mV maximum forward voltage drop at 3 A for high-efficiency, low-loss operation. Offers fast switching performance, 500 µA maximum reverse leakage current at 60 V, 100 A non-repetitive surge current (IFSM), and an integrated Schottky barrier structure for improved efficiency and reduced power dissipation. Rated for operation over a −55°C to +150°C junction temperature range and housed in a DO-214AB (SMC) surface-mount package. #Vishay #SS36E39AT #SS36 #SchottkyDiode #Rectifier #PowerDiode #SMPS #DCDCConverter #ReversePolarityProtection #PowerManagement #SMC #EmbeddedSystems
77 Uses0 StarsTPS22995HQDDCRQ1
Automotive High-Side Load Switch IC – Single-channel high-side load switch optimized for automotive power distribution, ADAS, infotainment, body electronics, industrial control, and embedded power management. Operates from a 1.5 V to 5.5 V control supply and switches 0.8 V to 5.5 V load voltages, delivering up to 3 A continuous output current with an ultra-low 19 mΩ (typical) ON resistance for minimal power loss. Features controlled slew-rate switching to reduce inrush current, integrated quick output discharge (QOD), fixed current limiting, thermal shutdown, reverse current blocking (when disabled), and low quiescent current for efficient operation. Qualified to AEC-Q100 Grade 1, it operates over a −40°C to +125°C ambient temperature range and is housed in a compact 6-pin SOT-23 Thin (TSOT-23-6) package. #TexasInstruments #TPS22995HQDDCRQ1 #TPS22995 #LoadSwitch #HighSideSwitch #PowerDistribution #PowerManagement #CurrentLimiting #AutomotiveElectronics #AECQ100 #SOT236 #EmbeddedSystems
16 Uses0 StarsTMAG5231C1DQDBZR
Ultra-Low-Power Omnipolar Hall-Effect Switch – Digital omnipolar Hall-effect switch optimized for lid/door detection, proximity sensing, magnetic position detection, industrial controls, consumer electronics, and battery-powered embedded systems. Operates from a 1.65 V to 5.5 V supply with an ultra-low 3 µA maximum supply current, making it ideal for low-power applications. Features a push-pull digital output, omnipolar operation (responds to either north or south magnetic poles), sleep mode, and high magnetic sensitivity with ±3 mT typical operate point and ±0.8 mT typical release point. Supports up to 5 mA output current, provides built-in hysteresis for noise immunity, and operates over a −40°C to +125°C temperature range. Housed in a compact 3-pin SOT-23 (DBZ) surface-mount package. #TexasInstruments #TMAG5231C1DQDBZR #TMAG5231 #HallEffectSensor #OmnipolarSwitch #MagneticSensor #PositionSensor #ProximitySensor #LowPower #BatteryPowered #SOT23 #EmbeddedSystems
3 Uses0 Stars750811611
Offline Flyback SMPS Transformer – Surface-mount flyback transformer optimized for offline AC-DC LED drivers and switch-mode power supplies (SMPS) using flyback converter topologies. Designed for 120 V to 375 V DC primary input, it features 800 µH primary inductance (at 10 kHz), 68 kHz to 100 kHz switching frequency, and 4500 Vrms reinforced isolation between primary and secondary windings for enhanced safety. Includes dual 5 V secondary windings (2 A each) and a 20 V auxiliary winding (configurable as 6 V + 14 V) for controller bias and feedback circuitry. Complies with IEC 61558-2-16 reinforced insulation requirements, operates over a −40°C to +125°C temperature range, and is housed in a compact EFD20 surface-mount package for high-density power supply designs. #WurthElektronik #750811611 #FlybackTransformer #SMPSTransformer #OfflinePowerSupply #ACDCConverter #LEDDriver #FlybackConverter #PowerTransformer #4500VrmsIsolation #EFD20 #EmbeddedSystems
3 Uses0 StarsSQJ128ELP-T1_GE3
Automotive N-Channel Power MOSFET – 30 V N-channel TrenchFET® Gen IV power MOSFET optimized for automotive power distribution, battery management systems (BMS), motor drives, DC-DC converters, load switching, and high-current embedded power applications. Features a 30 V drain-to-source voltage (VDS), 437 A continuous drain current (TC = 25°C), and ultra-low RDS(on) of 1.16 mΩ maximum at VGS = 10 V (1.66 mΩ maximum at VGS = 4.5 V) for exceptionally low conduction losses. Offers ±20 V gate-to-source voltage, 595 A pulsed drain current, 500 W maximum power dissipation, low gate charge, optimized Qgd/Qgs ratio for fast switching, and an integrated body diode for high-efficiency switching applications. Qualified to AEC-Q101, 100% Rg and UIS tested, and specified for operation over a −55°C to +175°C junction temperature range. Housed in a PowerPAK® SO-8L surface-mount package. #Vishay #SQJ128ELPT1GE3 #SQJ128ELP #NChannelMOSFET #TrenchFET #PowerMOSFET #DCDCConverter #BatteryManagement #MotorDrive #AutomotiveElectronics #PowerPAKSO8L #EmbeddedSystems
23 Uses0 StarsLMR38020FSQDDARQ1
Automotive 80 V, 2 A Synchronous Buck Converter IC – Automotive-grade synchronous step-down (buck) DC-DC converter optimized for automotive power supplies, industrial automation, battery-powered systems, distributed power, and embedded applications. Operates from a 4.2 V to 80 V input voltage and provides an adjustable output voltage from 1 V to 75 V with up to 2 A continuous output current. Features an integrated high-side and low-side MOSFET, 200 kHz to 2.2 MHz programmable switching frequency, 40 µA typical quiescent current, 98% maximum duty cycle, forced PWM/light-load efficiency modes, spread-spectrum EMI reduction, frequency synchronization, power-good output, fixed soft-start, and pre-biased startup. Includes comprehensive protection with cycle-by-cycle current limiting, hiccup-mode short-circuit protection, thermal shutdown, and undervoltage lockout (UVLO). Qualified to AEC-Q100 Grade 1, it operates over a −40°C to +125°C ambient (−40°C to +150°C junction) temperature range and is housed in an 8-pin SO PowerPAD (HSOIC) package. #TexasInstruments #LMR38020FSQDDARQ1 #LMR38020Q1 #BuckConverter #SynchronousBuck #DCDCConverter #PowerManagement #AutomotiveElectronics #AECQ100 #SIMPLESWITCHER #HSOIC8 #EmbeddedSystems
19 Uses0 StarsTPS56837RPAR
Automotive 8 A Synchronous Buck Converter IC – High-efficiency synchronous step-down (buck) DC-DC converter optimized for automotive power supplies, industrial automation, networking equipment, point-of-load regulation, and embedded power applications. Operates from a 4.5 V to 28 V input voltage and provides an adjustable output voltage from 0.6 V to 13 V with up to 8 A continuous output current. Features integrated high-side (20.4 mΩ) and low-side (9.5 mΩ) MOSFETs, D-CAP3™ control architecture for fast transient response, 45 µA typical quiescent current, selectable switching frequencies of 500 kHz, 800 kHz, or 1.2 MHz, pre-biased startup, power-good (PG) output, soft-start, frequency synchronization, and light-load Eco-mode™ operation for improved efficiency. Includes comprehensive protection with cycle-by-cycle current limiting, undervoltage lockout (UVLO), overvoltage protection (OVP), thermal shutdown, and hiccup-mode short-circuit protection. Specified for operation over a −40°C to +150°C junction temperature and housed in a compact 10-pin VQFN-HR (3 × 3 mm) package. #TexasInstruments #TPS56837RPAR #TPS56837 #BuckConverter #SynchronousBuck #DCDCConverter #PowerManagement #PointOfLoad #IndustrialElectronics #AutomotiveElectronics #VQFN10 #EmbeddedSystems
14 Uses0 StarsPTV09A-4020F-A103
Rotary Carbon Potentiometer (Audio/Log Taper) – Single-turn rotary potentiometer designed for audio volume control, user interface adjustment, industrial equipment, consumer electronics, musical instruments, and embedded control applications. Features a 10 kΩ logarithmic (audio) taper, ±20% resistance tolerance, and 50 mW (1/20 W) power rating. Part of the Bourns Pro Audio PTV09 Series, it provides 280° mechanical rotation, a 6 mm flatted shaft with 20 mm length, top adjustment, carbon resistive element, and through-hole snap-in mounting with PC pins and board locks for secure PCB installation. The potentiometer has a single gang, no integrated switch, and is suitable for low-power analog signal adjustment in compact electronic designs. #Bourns #PTV09A4020FA103 #PTV09 #RotaryPotentiometer #AudioTaper #LogarithmicPotentiometer #CarbonPotentiometer #VolumeControl #UserInterface #ThroughHole #EmbeddedSystems
14 Uses0 Stars
