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.
HF49FD/005-1H11TF
Hongfa Europe GMBH PCB Mount Power Relay, 5V dc Coil, 5A Switching Current, SPS The HF49FD/005-1H11TF is part of the Hongfa HF49FD series, which consists of compact, high-sensitivity power relays. It operates using a 5 V DC coil and provides electrical isolation between the control circuit and the load, allowing low-power signals (e.g., from a microcontroller) to switch higher voltages or currents. Key Characteristics Type: Electromagnetic relay (non-latching) Contact Configuration: SPST-NO (1 Form A, normally open) Coil Voltage: 5 V DC Switching Current: up to 5 A Switching Voltage: 250 VAC 30 VDC Mounting Type: Through-hole / PCB mount Size: ~20 × 5 × 12.5 mm (slim design) Coil Power Consumption: ~120 mW (low power) Dielectric Strength: up to 3 kV isolation Functional Overview Uses a coil + mechanical contacts: When 5 V is applied → coil energizes → contacts close When removed → contacts open Provides electrical isolation between: control side (low voltage) load side (higher voltage/current) #Relay
36 Uses0 StarsAAPS1040M4R7A
9.1A 4.7uH ±20% 15.15A 19.9mΩ SMD,11.5x10mm Fixed Inductors The AAPS1040M4R7A belongs to the AAPS series of molded power inductors, designed for high-current DC-DC converters and power management applications. It features a magnetically shielded construction, helping reduce electromagnetic interference (EMI) while maintaining stable inductance. Key Characteristics Component Type: Fixed power inductor Inductance: 4.7 µH Tolerance: typically ±20% Construction: Molded / shielded (low EMI noise) Mounting Type: Surface-mount (SMD) Package Size: approx. 10 × 10 mm footprint (1040 size) DC Resistance (DCR): ~19.9 mΩ (max) Rated Current (Irms): ~9.1 A Saturation Current (Isat): ~15.15A Function This inductor is used to: Store energy in magnetic form Smooth current in switching regulators Filter noise in power circuits Stabilize voltage in DC-DC converters Commonly found in: Buck / boost converters Power supplies Battery-powered systems Embedded electronics #commonpartslibrary #inductor #coil
50 Uses0 StarsG3VM-61VY3(TR05)
Solid State Photo-Coupled Relay (Photorelay) SPST-NO (1 Form A) 4-SOP (0.179", 4.55mm) The G3VM-61VY3(TR05) is a single-pole, single-throw normally open (SPST-NO) solid-state relay that uses an LED input and MOSFET output to switch AC or DC loads without mechanical contacts. It provides fast, silent, and highly reliable switching in a very small surface-mount package. Key Characteristics Relay Type: Solid State Relay (Photorelay) Contact Form: SPST-NO (1 Form A) Output Type: MOSFET Load Voltage: Up to 60 V AC/DC Load Current: Up to 700 mA On-Resistance: ~2 Ω max Input Control: LED-driven (low current DC input) Isolation Voltage: ~3.75 kV (input to output) Package: SOP-4 surface-mount (compact form factor) Packaging Option: TR = Tape & Reel for automated assembly How It Works The input LED is energized with a small DC current. It activates an internal photo-coupler. This drives a pair of MOSFETs, turning the load ON or OFF. No mechanical movement → no arcing or contact wear. Key Advantages Silent operation (no clicking sound) Very long life (no mechanical parts) Fast switching speed Compact size for dense PCB layouts Low leakage and stable performance Typical Applications Semiconductor test equipment Industrial control systems Battery-powered devices Data acquisition systems Communication and measurement circuits General-purpose signal switching #CommonPartsLibrary #Relay #SSR #G3VM
117 Uses0 StarsSLW-864574-5A-RA-N-D
Slide Switch SPDT Through Hole, Right Angle The SLW-864574-5A-RA-N-D, manufactured by Same Sky (formerly CUI Devices), is a single-pole double-throw (SPDT) slide switch with a right-angle, through-hole mounting configuration. It features a raised actuator for easy manual operation and is intended for PCB-based applications where space is limited but dependable switching is required. Key Features Switch Type: Slide switch (manual) Circuit Configuration: SPDT (Single Pole Double Throw) Switch Function: ON–ON (selects between two circuits) Contact Timing: Non-shorting (break-before-make) Mounting Type: Through-hole, right-angle Actuator: Raised slide, ~5 mm height Electrical & Mechanical Characteristics Rated Voltage: 50 VDC Rated Current: up to 500 mA Contact Resistance: ≤ 100 mΩ Insulation Resistance: ≥ 100 MΩ Operating Temperature: -20°C to +70°C Mechanical/Electrical Life: ~10,000 cycles Physical Characteristics Dimensions: approx. 8.6 × 4.5 × 6–7 mm Actuator Travel: ~2 mm Termination: PC pins (through-hole soldering) Orientation: Horizontal (right-angle insertion into PCB) #CommonPartsLibrary #Switch
20 Uses0 StarsG6K-2P-Y-DC5
Telecom Relay DPDT (2 Form C) Through Hole The G6K-2P-Y DC5 is a compact, ultra-miniature signal relay designed for high-density PCB mounting applications. Manufactured by Omron, this relay features a DPDT (2 Form C) contact configuration and operates with a 5 VDC coil. It is optimized for switching low-level signals and is commonly used in telecommunications, test and measurement equipment, and consumer electronics where space-saving and high reliability are critical. Key Features Ultra-miniature, low-profile design for high-density mounting DPDT (2 Form C) contact configuration High sensitivity coil (low power consumption) Gold-clad contacts for low-level signal switching High reliability and long mechanical life Fully sealed construction (flux protection) Suitable for surface-mount and through-hole variants (depending on suffix) Electrical Characteristics Coil Specifications Rated Coil Voltage: 5 VDC Coil Resistance: ~125 Ω Coil Current: ~40 mA Power Consumption: ~200 mW Must Operate Voltage: ≤ 75% of rated voltage Must Release Voltage: ≥ 10% of rated voltage Contact Specifications Contact Configuration: DPDT (2 Form C) Contact Material: Gold-clad silver alloy Contact Rating: 1 A at 30 VDC 0.5 A at 125 VAC Maximum Switching Voltage: 125 VAC / 60 VDC Maximum Switching Current: 1 A Maximum Switching Power: 30 W (DC) 62.5 VA (AC) Timing Characteristics Operate Time: ≤ 3 ms Release Time: ≤ 3 ms Insulation Characteristics Insulation Resistance: ≥ 1,000 MΩ (at 500 VDC) Dielectric Strength: Between Coil and Contacts: 1,000 VAC (1 min) Between Open Contacts: 500 VAC (1 min) Mechanical Characteristics Mounting Type: Through-hole (Y variant, PCB terminal) Weight: ~1 g Enclosure: Sealed (flux-resistant) Environmental Specifications Operating Temperature Range: -40°C to +70°C Storage Temperature Range: -40°C to +85°C Vibration Resistance: 10 to 55 Hz, 1.5 mm double amplitude Shock Resistance: 1,000 m/s² Life Expectancy Mechanical Life: ≥ 100 million operations Electrical Life: ≥ 100,000 operations (at rated load) Applications Telecommunications equipment Test and measurement instruments Audio signal routing Industrial control systems Consumer electronics Package Information Manufacturer: Omron Electronics Series: G6K Part Number: G6K-2P-Y DC5 #commonpartslibrary #relay
128 Uses0 StarsPEC06SAAN
Connector Header Through Hole 6 position 0.100" (2.54mm) The PEC06SAAN is a compact, low-cost incremental rotary encoder manufactured by Bourns. It is designed for user interface applications requiring precise rotational input, such as volume controls, menu navigation, and position sensing. This encoder provides reliable quadrature output signals and is suitable for through-hole PCB mounting. Its robust mechanical design ensures long operational life and consistent performance in consumer and industrial electronics. Key Features Incremental (relative) rotary encoder Compact, space-saving design Through-hole mounting configuration Quadrature output (A and B channels) Optional integrated push switch (depending on variant) Detent and non-detent options available High reliability with long rotational life RoHS compliant Electrical Characteristics Supply voltage: Typically 5 VDC (logic-level output) Output type: Digital quadrature (A/B signals) Contact resistance: ≤ 100 mΩ Insulation resistance: ≥ 100 MΩ @ 250 VDC Dielectric strength: 300 VAC for 1 minute Mechanical Characteristics Rotation type: Incremental Number of pulses per revolution (PPR): Typically 6 to 24 (variant dependent) Detent positions: Variant dependent Rotational torque: 10 to 70 gf·cm (typical range) Shaft length: Varies by suffix (e.g., 15 mm typical) Shaft type: Knurled or D-cut (variant dependent) Mounting type: Through-hole PCB Terminal type: PC pins Environmental Specifications Operating temperature range: −30°C to +70°C Storage temperature range: −40°C to +85°C Humidity: Up to 85% RH (non-condensing) Mechanical Life Rotational life: Up to 30,000 cycles (typical) Physical Dimensions Body size: Approximately 12 mm × 11 mm × 5 mm (excluding shaft) Shaft diameter: Typically 6 mm Pin pitch: Standard 2.54 mm Applications Consumer electronics (audio controls, appliances) Industrial control panels Embedded systems and microcontroller interfaces Automotive user interfaces Instrumentation and test equipment #commonpartslibrary #connector #header
28 Uses0 StarsTPS22995RZGR
Power Switch/Driver 1:1 N-Channel 3.8A 6-WQFN-HR (1.5x0.75) The TPS22995RZGR is a high-current, low ON-resistance load switch designed for power distribution and power sequencing applications. It features an integrated N-channel MOSFET capable of handling high load currents while maintaining minimal voltage drop. The device includes controlled rise time to reduce inrush current, making it suitable for sensitive power rails and battery-powered systems. It also integrates thermal shutdown and overcurrent protection, ensuring safe operation under fault conditions. Its compact package and low quiescent current make it ideal for portable and space-constrained designs. Key Features Ultra-low ON-resistance (R<sub>ON</sub>) Wide input voltage range High continuous output current capability Controlled slew rate for inrush current limiting Low quiescent current Thermal shutdown protection Reverse current blocking (when disabled) Active high enable pin (ON pin) Compact WQFN package Electrical Characteristics Input Voltage Range: 0.5 V to 5.5 V ON-Resistance (R<sub>ON</sub>): Typically ~5 mΩ (VIN = 5 V) Continuous Output Current: Up to 6 A (typical, PCB dependent) Quiescent Current: Typically < 10 µA Shutdown Current: Typically < 1 µA Enable Threshold Voltage: ~0.9 V (typical) Functional Description The TPS22995RZGR operates as a load switch that connects or disconnects a power supply to a load using an internal MOSFET controlled by an enable (ON) pin. When the ON pin is asserted high, the device turns on with a controlled rise time, limiting inrush current. When disabled, the switch turns off quickly and prevents reverse current flow from the output to the input. Integrated protection features such as thermal shutdown ensure reliability during abnormal operating conditions. Absolute Maximum Ratings Input Voltage (VIN): -0.3 V to 6 V ON Pin Voltage: -0.3 V to 6 V Output Voltage (VOUT): -0.3 V to VIN + 0.3 V Operating Junction Temperature: -40°C to +125°C Storage Temperature: -65°C to +150°C Package Information Package Type: WQFN (RZG) Package Size: 3 mm × 3 mm Mounting Type: Surface Mount Pin Count: 12 Applications Power rail switching Portable electronics USB power distribution Solid-state drives (SSD) Battery-powered systems Embedded systems power management Advantages Minimizes power loss due to low R<sub>ON</sub> Reduces system inrush current Enhances system reliability with built-in protections Suitable for high-current, compact designs #commonpartslibrary #integratedcircuit #powermanagement
83 Uses0 Stars2SC5171
Power Bipolar Transistor, 2A I(C), 180V V(BR)CEO, 1-Element, NPN, Silicon, Plastic/Epoxy, 3 Pin The 2SC5171 is a high-voltage, high-speed NPN bipolar junction transistor designed for switching and amplification applications. It is commonly used in power regulation circuits, switching power supplies, and high-voltage driver stages due to its fast switching characteristics and high collector-emitter voltage capability. The device is typically housed in a TO-220 package, providing good thermal performance for medium to high power applications. Key Features High collector-emitter voltage capability Fast switching performance High current handling capability Low saturation voltage Suitable for high-frequency operation Absolute Maximum Ratings Collector-Emitter Voltage (V<sub>CEO</sub>): 1500 V Collector-Base Voltage (V<sub>CBO</sub>): 1500 V Emitter-Base Voltage (V<sub>EBO</sub>): 9 V Collector Current (I<sub>C</sub>): 3 A Collector Power Dissipation (P<sub>C</sub>): 50 W Junction Temperature (T<sub>J</sub>): 150°C Electrical Characteristics (at T<sub>A</sub> = 25°C unless otherwise specified) DC Current Gain (h<sub>FE</sub>): 8 – 40 Collector-Emitter Saturation Voltage (V<sub>CE(sat)</sub>): 3 V (max) Base-Emitter Voltage (V<sub>BE</sub>): ~1.5 V (typ) Collector Cutoff Current (I<sub>CBO</sub>): 1 mA (max) Transition Frequency (f<sub>T</sub>): 4 MHz (typ) Package Information Package Type: TO-220 Mounting Type: Through-hole Pin Configuration: Pin 1: Base Pin 2: Collector Pin 3: Emitter Applications Switching power supplies High-voltage switching circuits CRT display circuits Motor control circuits General-purpose high-voltage amplification #CommonPartsLibrary #Transistors #Bipolar(BJT) #NPN
1 Uses0 Stars
