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.
B340B-13-F
Diode 40 V 3A Surface Mount SMB Schottky diode 3A 40V SMB The B340B-13-F is a surface-mount Schottky barrier rectifier diode designed for efficient power rectification in low-voltage, high-frequency applications. It features low forward voltage drop and fast switching capability, making it suitable for DC-DC converters, power supplies, reverse polarity protection, and freewheeling diode applications. The device is housed in a compact SMB (DO-214AA) package, enabling high current handling in space-constrained designs. ELECTRICAL CHARACTERISTICS Reverse Voltage (VRRM): 40 V Average Forward Current (IF(AV)): 3 A Forward Voltage (VF): 0.5 V (typical at IF = 3 A) Reverse Leakage Current (IR): 0.5 mA (max at VR = 40 V, 25°C) Peak Surge Current (IFSM): 80 A (8.3 ms single half sine wave) THERMAL CHARACTERISTICS Operating Junction Temperature Range: -55°C to +150°C Storage Temperature Range: -55°C to +150°C Thermal Resistance Junction-to-Ambient (RθJA): ~75 °C/W MECHANICAL CHARACTERISTICS Package Type: SMB (DO-214AA) Mounting Type: Surface Mount (SMD) Polarity: Cathode marked by band Weight: ~0.1 g FEATURES Low forward voltage drop for improved efficiency High surge current capability Fast switching speed Low power loss and high reliability Compact SMB package for space-saving PCB layout RoHS compliant and halogen-free APPLICATIONS Switch-mode power supplies (SMPS) DC-DC converters Reverse polarity protection circuits Freewheeling and clamping diodes Battery charging circuits MANUFACTURER / PART DETAILS Manufacturer: Diodes Incorporated Part Number: B340B-13-F Package Code: SMB (DO-214AA) #Diode #Rectifier #Single-Diode #SCHOTTKY #B340
171 Uses0 StarsSRP2010-1R5M
1.5µH Shielded Drum Core, Wirewound Inductor 1.9 A 137mOhm Max 0806 (2016 Metric) The Bourns SRP2010-1R5M is a 1.5 µH wirewound drum-core power inductor designed for high-current, low-loss power conversion applications such as buck/boost converters in compact electronics like smartphones, tablets, SSDs, and embedded systems. It uses a metal powder (iron powder) core with magnetic shielding, which helps reduce EMI (electromagnetic interference) and improves efficiency in high-frequency switching circuits. Key Features Inductance: 1.5 µH Tolerance: ±20% Current Rating (Irms): ~1.9 A Saturation Current (Isat): ~2.5 A Low DCR: ~137 mΩ max Shielded construction (reduces magnetic radiation) Wirewound drum core design Surface-mount package (0806 / 2016 metric) Operating temperature: -40°C to +125°C RoHS compliant Typical Applications DC-DC converters (buck / boost regulators) Power management circuits in mobile devices Laptops, tablets, smartphones SSD/HDD power filtering Embedded systems and IoT devices #CommonPartsLibrary #Inductor #Coil #Choke #Fixed-Inductor #SRP2010
12 Uses0 StarsFSM1LP
Tactile Switch SPST-NO Top Actuated Surface Mount The FSM1LP is a surface-mount tactile (momentary) switch manufactured by TE Connectivity under the ALCOSWITCH series. It is a low-profile, top-actuated pushbutton switch designed for compact PCB applications requiring reliable user input. This switch operates as a momentary SPST-NO (Single Pole Single Throw – Normally Open) device, meaning it only conducts when pressed and returns to open when released. Key Features Switch Type Tactile momentary (OFF–(ON)) pushbutton Contact Configuration SPST-NO (Normally Open) Mounting Type Surface Mount (SMD) with gull-wing leads Actuation Style Top-actuated round button Electrical Rating 50 mA @ 24 VDC Operating Force Approximately 1.57 N (~160 gf) Low Profile Design Compact height (~3–3.5 mm typical), suitable for slim devices Mechanical Life Around 100,000 cycles Contact Material Copper alloy with silver plating for reliable conductivity Compact Size Typically ~6 × 6 mm footprint RoHS Compliant Lead-free and environmentally compliant tactile switch momentary 4 pin smd #CommonPartsLibrary #Switch
1.9k Uses0 StarsMMBT2222ALT3G
Bipolar (BJT) Transistor NPN 40V 600 mA 300MHz 300 mW Surface Mount SOT-23-3 (TO-236) The MMBT2222ALT3G is a NPN general-purpose bipolar junction transistor (BJT) manufactured by onsemi, designed in a SOT-23 surface-mount package. It is the SMD version of the well-known 2N2222A transistor family, used for switching and signal amplification in compact electronic circuits. It is widely used in industrial, automotive (AEC-Q101 qualified variants), and general embedded systems due to its reliability, small size, and good electrical performance. Key Features NPN General-Purpose Transistor Suitable for switching and low-power amplification Collector-Emitter Voltage (Vceo) Up to 40 V Collector Current Up to 600 mA Power Dissipation Around 225–300 mW (depending on package conditions) High Frequency Performance Transition frequency up to ~300 MHz DC Current Gain (hFE) Typically ~100 at moderate currents Low Saturation Voltage Efficient switching performance for digital circuits SOT-23 Surface-Mount Package Compact footprint for modern PCB designs Wide Temperature Range Typically -55°C to +150°C RoHS / Lead-Free Compliant Environmentally compliant manufacturing Typical Applications LED switching circuits Relay driver stages MCU signal interfacing (Arduino, ESP32, etc.) Small motor drivers General signal amplification Automotive and industrial control circuits Important Note MMBT2222ALT3G = SMD version (SOT-23) Equivalent to 2N2222A (TO-92 through-hole version) in function, but not in physical package. 2N2222A SOT-23 #commonpartslibrary #transistor #bjt
478 Uses0 StarsLMZ22010TZ/NOPB
Non-Isolated PoL Module DC DC Converter 1 Output 0.8 ~ 6V 10A 6V - 20V Input The LMZ22010TZ/NOPB is a compact, high-efficiency step-down (buck) DC-DC power module from Texas Instruments. It integrates a switching regulator, power MOSFETs, inductor, and compensation components into a single package, simplifying power supply design. This module is capable of delivering up to 10A output current with excellent thermal performance and minimal external components. It is intended for high power density applications such as industrial systems, telecommunications equipment, and embedded processing platforms. Manufacturer Information Manufacturer: Texas Instruments Part Number: LMZ22010TZ/NOPB Product Type: DC-DC Buck Power Module Key Features Integrated power module with inductor and controller Output current up to 10A Wide input voltage range High efficiency operation Adjustable output voltage Built-in protection features (thermal shutdown, overcurrent protection) Power-good output and enable control Requires minimal external components Electrical Characteristics Parameter Value Input Voltage Range 6 V to 20 V Output Voltage Range 0.8 V to 6 V (adjustable) Output Current Up to 10 A Switching Frequency ~500 kHz Efficiency Up to ~95% Operating Temperature Range -40°C to +125°C Package Information Package Type: TO-PMOD (Power Module) Mounting Type: Surface Mount Integrated inductor and power components Optimized for thermal performance Pin Configuration (Typical) Pin Name Description VIN Input supply voltage VOUT Regulated output voltage GND Ground EN Enable input FB Feedback for output adjustment PGOOD Power-good indicator Typical Applications Industrial automation systems Telecom and networking equipment FPGA / DSP / processor power rails Embedded systems Point-of-load regulation Design Considerations Ensure proper PCB layout for heat dissipation Use appropriate input/output capacitors External resistors required to set output voltage Consider airflow for high-current operation #commonpartslibrary #powersupply #dcdc #converter
17 Uses0 Stars218-2LPSTJ
Dip Switch SPST 2 Position Surface Mount Slide (Standard) Actuator 25mA 24VDC The 218-2LPSTJ is a two-position pluggable terminal block connector designed for secure wire-to-board connections in industrial and commercial electronic applications. It features a screw-clamp termination mechanism, allowing reliable and reusable connections for solid or stranded wires. The connector is typically used in power distribution, control systems, and signal wiring where ease of maintenance and field wiring is required. Key Features Pluggable terminal block, two positions Screw-clamp wire termination for secure connection Standard pitch suitable for common PCB layouts Removable plug for easy installation and maintenance Designed for solid and stranded wire compatibility High reliability for industrial environments Mechanical Specifications Number of Positions: 2 Pitch: 5.08 mm Mounting Type: Through-hole (header) with mating plug Wire Entry: Side entry Wire Gauge Range: Typically 24 AWG to 12 AWG (manufacturer dependent) Housing Material: High-temperature thermoplastic Color: Typically green Electrical Specifications Rated Voltage: Up to 300 V (UL rating typical) Rated Current: Up to 10–15 A (depending on wire size and conditions) Contact Resistance: Low resistance, suitable for power and signal transmission Insulation Resistance: High insulation resistance under standard conditions Environmental Specifications Operating Temperature Range: −40°C to +105°C (typical) Flammability Rating: UL94 V-0 RoHS Compliant: Yes Applications Power supply connections Industrial control systems HVAC equipment Automation and instrumentation PCB-based terminal interfaces Mating / Compatibility Compatible with corresponding 2-position pluggable terminal block headers with 5.08 mm pitch Designed for repeated mating cycles without degradation #commonpartslibrary #switch #dip #spst
13 Uses0 StarsB3FS-1002P
Tactile Switch SPST-NO Top Actuated Surface Mount The B3FS-1002P is a compact, surface-mount tactile switch designed for low-profile input applications. It provides a momentary contact mechanism with a distinct tactile feedback, making it suitable for user interface controls in consumer electronics, industrial devices, and compact embedded systems. The switch features a sealed construction for improved reliability and is optimized for automated PCB assembly processes. Mechanical Characteristics Mounting Type: Surface Mount (SMD) Actuator Style: Top push Actuator Height: Low profile Outline: Rectangular compact body Terminal Type: Gull-wing terminals Sealing: Dust-resistant (sealed construction) Electrical Characteristics Switch Type: Single Pole Single Throw (SPST) Contact Configuration: Normally Open (NO) Rated Voltage: Low voltage DC applications Rated Current: Suitable for signal-level switching Contact Resistance: Low initial contact resistance Insulation Resistance: High insulation resistance between terminals Operating Characteristics Operating Force: Standard tactile force (manufacturer-defined variant) Travel Distance: Short stroke tactile action Operating Life: High durability for repeated actuation cycles Bounce Time: Minimal contact bounce for reliable switching Environmental Characteristics Operating Temperature Range: Wide operating range suitable for consumer and industrial use Storage Temperature Range: Standard electronic component storage conditions Humidity Resistance: Designed to withstand typical ambient humidity conditions Material & Construction Actuator Material: High-strength polymer Housing Material: Heat-resistant plastic Contact Material: Metal alloy with surface plating for durability Terminal Finish: Solderable finish compatible with reflow soldering Packaging Information Packaging Type: Tape and reel Assembly Compatibility: Fully compatible with automated pick-and-place and reflow processes Applications Consumer electronics (keypads, remote controls) Industrial control panels Portable devices Embedded system user interfaces Wearable and compact electronics #commonpartslibrary #switch #tactile
1.3k Uses0 StarsV30202C-M3/4W
Diode Array 1 Pair Common Cathode 200 V 15A Through Hole TO-220-3 The V30202C-M3/4W is a surface-mount Schottky barrier rectifier designed for high-efficiency power conversion and fast switching applications. It features a low forward voltage drop and high surge current capability, making it suitable for switching power supplies, DC-DC converters, freewheeling diodes, and polarity protection circuits. The device is housed in a compact DO-214AB (SMC) package, enabling high power density and reliable thermal performance in space-constrained designs. Key Features Schottky barrier technology for fast switching Low forward voltage drop for improved efficiency High forward current capability Low power loss and high reliability High surge current capability Surface-mount DO-214AB (SMC) package RoHS compliant and halogen-free Absolute Maximum Ratings Repetitive peak reverse voltage: 200 V Average forward rectified current: 30 A Non-repetitive peak surge current: 300 A Operating junction temperature range: -55°C to +150°C Storage temperature range: -55°C to +150°C Electrical Characteristics Forward voltage drop: approximately 0.85 V at rated current Reverse leakage current: low, typically in the mA range at rated voltage Reverse recovery time: negligible (Schottky device) Thermal resistance junction-to-case: low for efficient heat dissipation Mechanical Characteristics Package type: DO-214AB (SMC) Mounting type: Surface mount Polarity: Cathode band marking Terminal finish: Solderable, compatible with reflow processes Applications Switching power supplies DC-DC converters Freewheeling and clamping diodes Reverse polarity protection Battery-powered systems Automotive and industrial power circuits Pin Configuration Anode: Connected to the device substrate Cathode: Marked terminal (banded side) #CommonPartLibrary #Diode #Rectifier #DiodeArray
94 Uses0 StarsSTUSB4500QTR
USB Controller USB 2.0 I2C Interface 24-QFN (4x4) The STUSB4500QTR is a standalone USB Type-C Power Delivery (PD) controller from STMicroelectronics designed for power sink applications (devices that receive power, like chargers, IoT devices, or battery-powered systems). It enables automatic negotiation of USB Power Delivery contracts (up to 100 W: 20 V / 5 A) without requiring an external microcontroller, thanks to its built-in auto-run algorithm. Power profiles (PDOs) can be pre-configured and stored in internal non-volatile memory, simplifying system design and reducing component count. The device is optimized for modern USB-C designs, offering robust protection, high-voltage tolerance, and support for operation even from a dead battery state. Key Features Power Delivery & Control Standalone USB Type-C™ and USB PD sink controller Supports up to 100 W (20 V, 5 A) power negotiation Auto-run mode (no MCU required) for PD negotiation Up to 3 configurable sink PDO profiles stored in NVM Power Management Dead battery mode support (can start with no battery power) Dual power supply inputs: V<sub>SYS</sub>: 3.0 V – 5.5 V V<sub>DD</sub>: 4.1 V – 22 V Integrated VBUS monitoring and control Integrated Functions Built-in VBUS switch gate drivers (PMOS) Internal/external VBUS discharge paths I²C interface for configuration and monitoring Protection & Reliability Short-to-VBUS protection on CC pins (up to 22 V) High-voltage tolerance: Up to 28 V on VBUS pins ESD protection: 3 kV HBM / 1.5 kV CDM Physical & Environmental Package: QFN-24 (4×4 mm) Operating temperature: –40°C to +105°C Industrial-grade reliability Compliance & Compatibility Certified for: USB Type-C Rev 1.2 USB PD Rev 2.0 Interoperable with USB PD 3.0 #commonpartslibrary #integratedcircuit #usbcontroller
520 Uses0 Stars
