Switches

Buck Switching Regulator IC Positive Fixed 5V 1 Output 1A SOT-23-6 The LMR50410Y5FQDBVRQ1 (part of the LMR50410-Q1 family from Texas Instruments) is a synchronous step-down (buck) DC-DC converter designed for automotive and industrial power applications. It operates over a wide input voltage range of 4 V to 36 V and can deliver up to 1 A output current, making it suitable for converting higher, unregulated voltages into stable lower voltages (e.g., 5 V or 3.3 V rails). The device integrates power switches, control circuitry, and compensation internally, allowing simple design with minimal external components and a compact PCB footprint. Key Features Power & Performance Wide input voltage range: 4 V to 36 V Output current: up to 1 A High switching frequency: 2.1 MHz (enables small inductors) High efficiency with PFM (light load) and FPWM (constant frequency) options Integration & Ease of Use Synchronous rectification (integrated high-side & low-side MOSFETs) Internal compensation (no complex external tuning) Minimal external components required Small SOT-23-6 package for compact designs Protection & Reliability Cycle-by-cycle current limit Short-circuit protection (hiccup mode) Thermal shutdown protection Undervoltage lockout (UVLO) ±1% reference voltage accuracy Automotive & Industrial Capability AEC-Q100 qualified (automotive grade) Operating temperature: Ambient: up to 125°C Junction: up to 150°C Designed for rugged automotive environments Additional Features Soft-start for controlled startup Precision enable pin for system control Monotonic startup with pre-biased output Available in fixed output (e.g., 5 V) variants Typical Applications Automotive electronics (ADAS, infotainment, lighting) Industrial power supplies Distributed power systems General-purpose DC-DC regulation #commonpartslibrary #integratedcircuit #powermanagement #voltageregulator

MICRO COMMERCIAL COMPONENTS - MB110S-TP - BRIDGE RECTIFIER, 1A, 100V The MB110S-TP is a single-phase Schottky bridge rectifier designed for efficient AC-to-DC conversion in low-voltage, low-power electronic circuits. It integrates four Schottky diodes in a compact surface-mount package, providing fast switching performance and low forward voltage drop. Because it uses Schottky technology, it offers higher efficiency and lower heat dissipation compared to standard silicon bridge rectifiers. Key Characteristics Device Type: Bridge Rectifier (Schottky type) Phase: Single-phase Maximum Reverse Voltage: 100 V Average Forward Current: 1 A Package: Surface-mount (MBS-1 / 4-pin SMD) Technology: Schottky (low forward voltage, fast recovery) Main Function Converts AC (alternating current) to DC (direct current) Provides efficient rectification with low power loss Suitable for compact power supply designs Typical Applications Switching power supplies (SMPS) Adapter and charger circuits Small electronic devices Consumer electronics power stages Embedded power regulation circuits #CommonPartsLibrary #Bridge-rectifier #MB110

Audio Transformers / Signal Transformers POE70P Flyback 7uH 5.0 V 1.4 A SMD,12.7x10.5mm Pulse Transformers RoHS The POE70P-50LD, manufactured by Coilcraft, is a magnetic component designed for PoE applications, where electrical power is delivered together with data over Ethernet cables. It is optimized for isolated DC-DC conversion in network-powered devices. Key Characteristics Part Type: PoE transformer / flyback transformer Technology: Magnetic (ferrite core) transformer Mounting: Surface-mount (SMT) Power Rating: ~7 W Isolation Voltage: up to 1500 Vrms Input Range: typically 36–72 V (PoE standard range) Output Example: ~5 V / 1.4 A (depending on design) Core Material: Ferrite Operating Temp: −40 °C to +85 °C Function (How it works) Converts high-voltage PoE input into low-voltage DC output Provides galvanic isolation between Ethernet line and device Works in a flyback converter topology Supports efficient energy transfer and EMI control Typical Applications IP cameras VoIP phones Wireless access points Network switches Industrial IoT devices #CommonPartsLibrary #Transformer

Buck Switching Regulator IC Positive, Isolation Capable Adjustable 0.596V 1 Output 3A SOT-563, SOT-666 The TPS543021DRLR is a compact, integrated power regulator that converts a wide input voltage (typically from batteries or power rails) into a regulated lower output voltage with high efficiency. It includes internal power switches and control circuitry, simplifying power supply design and reducing external component count. Key Features Topology: Synchronous buck converter Input Voltage Range: ~4.5 V to 28 V Output Voltage: Adjustable (via external resistors) Output Current: Up to 3 A continuous Switching Frequency: ~500 kHz (fixed) Efficiency: High efficiency (up to ~90%+) Quiescent Current: Low, suitable for power-sensitive designs Protection Features: Overcurrent protection (OCP) Thermal shutdown Undervoltage lockout (UVLO) Package & Physical Info Package Type: SOT-563 / VSON (compact, no-lead package) Mounting: Surface Mount (SMT) Packaging: Tape & reel (DRLR suffix) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Voltage-regulator #Switching-regulator

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

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

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

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

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