This module involves the design of a keypad lock system. It utilizes an ATMEGA328P microcontroller, buzzers, LEDs for indicator functions and a 4x3 matrix keypad. An in-circuit serial programming (ISP) header is also present for programming the microcontroller. #template #lock #keypad #reusable #module #simple-embedded #microchip #arduino #atmega328 #TPS613222A #ISP #buzzer #sublayout

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JST PH Connector Header Through Hole 3 position 0.079" (2.00mm) The B3B-PH-K-S(LF)(SN) is a 3-position, 2.0 mm pitch, through-hole (THT) male header from the JST PH series, designed for wire-to-board connections. It is a top-entry, shrouded connector that mates with JST PH crimp housings, commonly used for compact internal wiring in electronic devices such as consumer electronics, battery connections, and embedded systems. This connector is optimized for high-density PCB layouts, offering a reliable and secure connection with a locking mechanism and low contact resistance. Key Features Mechanical 3 positions (3-pin) 2.0 mm pitch (compact spacing) Through-hole mounting (THT) Top-entry / vertical orientation Shrouded header (prevents misalignment) Detent lock / friction lock for secure mating Electrical Rated current: up to 2A per pin Rated voltage: up to 100V AC/DC Low contact resistance (~10 mΩ max initial) High insulation resistance (≥1000 MΩ) Environmental Operating temperature: -25°C to +85°C Design & Reliability Fully shrouded design → protects pins and ensures proper insertion Reliable contact structure with dimpled contacts for stable connection PCB retention mechanism → improves mechanical stability Tin-plated contacts for good conductivity and solderability Application Use Commonly used for: Battery connectors Sensor modules Embedded systems (e.g., microcontroller boards) Consumer electronics internal wiring Power + signal low-current connections #commonpartslibrary #connector #header #tht

Mini-Fit Jr. Vertical Header, 4.20mm Pitch, Dual Row, 2 Circuits, without Snap-in Plastic Peg PCB Lock, Tin, Natural Connector Header Through Hole 2 position #CommonPartsLibrary #Connector #Header #Molex #Mini-Fit Jr 5566 #003929

Mini-Fit Jr. Header, Dual Row, Vertical, without Snap-in Plastic Peg PCB Lock, 8 Circuits, PA Polyamide Nylon 6/6 94V-2, Tin (Sn) Plating, Glow-Wire Capable #CommonPartsLibrary #Connector #Header #Male-pins #172447

Connector Header Through Hole, Right Angle 6 position 0.118" (3.00mm) The Molex 0430450623 is a 6-position, dual-row, right-angle through-hole header with a 3.00 mm pitch, part of the Micro-Fit 3.0 (43045 series) connector family. It is commonly used for compact, high-reliability power and signal connections in industrial, automotive, and electronic systems. Key Features Series: Molex Micro-Fit 3.0 (43045) Number of positions: 6 pins (2 rows) Pitch: 3.00 mm (0.118") Mounting type: Through-hole, right-angle PCB mount Contact type: Male pin header Current rating: up to ~8 A (depending on wire gauge) Voltage rating: 600 V Contact material: Brass Contact finish: Gold (mating side), Tin (tail side) Locking mechanism: Latch / ramp for secure mating Operating temperature: -40°C to +105°C Flammability rating: UL94 V-0 housing material Housing material: Glass-filled LCP (Liquid Crystal Polymer) Board retention: PCB lock / press-fit retention feature Typical Applications Automotive electronics Industrial control systems Power distribution modules Consumer appliances Telecommunications equipment Medical devices #CommonPartsLibrary #Connector #Molex #MicroFit3_0 #0430450623 #Connector #RightAngleHeader #3mmPitch #WireToBoard #PowerConnector #PCBHeader

Phase Lock Loop (PLL) IC 2.4MHz 1 16-DIP (0.300", 7.62mm) CD4046BE is a CMOS Micropower Phase-Locked Loop (PLL) integrated circuit that combines a linear Voltage-Controlled Oscillator (VCO), two phase comparators, a source follower, and a Zener diode in a single package. It is designed for frequency synthesis, frequency detection, FM demodulation, clock recovery, motor speed control, and other synchronization applications. The device operates over a wide supply voltage range and offers low power consumption, high noise immunity, and excellent VCO linearity. Key Features Wide operating supply voltage range: 3 V to 18 V Integrated Voltage-Controlled Oscillator (VCO) Two selectable phase comparators for flexible PLL design Operating frequency range up to approximately 1.4 MHz Very low power consumption High VCO linearity (typically <1%) Low frequency drift with temperature VCO inhibit control for ON/OFF keying applications Built-in source follower output for demodulation applications High noise immunity characteristic of CMOS technology Available in 16-pin PDIP (CD4046BE) package Typical Applications Frequency synthesis and multiplication FM modulation and demodulation Frequency discrimination Clock recovery and data synchronization Tone decoding Voltage-to-frequency conversion FSK modulation/demodulation Motor speed control systems Signal tracking and phase synchronization circuits Hashtags #CD4046BE #PLL #PhaseLockedLoop #VCO #ClockRecovery #FrequencySynthesizer #FMDemodulator #FSKModulation #CMOS #TexasInstruments #AnalogIC #TimingIC #SignalProcessing #EmbeddedSystems #ElectronicsDesign

JST PH Connector Header Through Hole, Right Angle 4 position 0.079" (2.00mm) The S4B-PH-K-S(LF)(SN) is a 4-position, single-row, right-angle (side-entry) male header designed for 2.0 mm pitch wire-to-board connections. It is a through-hole mounted, shrouded connector that ensures reliable and secure mating with compatible PH series housings and crimp terminals. This connector is commonly used in consumer electronics, embedded systems, power supplies, and industrial control boards, especially where space-saving and dependable connections are required. Key Features Connector Type: Shrouded male header (wire-to-board) Number of Positions: 4 pins (single row) Pitch: 2.0 mm Orientation: Right-angle (side entry) Mounting Type: Through-hole (THT) Termination: Solder Electrical Characteristics Rated Voltage: 100 V Rated Current: 2 A per contact Insulation Resistance: ≥1000 MΩ Contact Resistance: Low (typically ≤10–20 mΩ) Mechanical & Material Contact Material: Brass / phosphor bronze with tin plating Housing Material: PA66 (Nylon), UL94 V-0 flame rated Locking Mechanism: Detent lock for secure mating Shrouded Design: Prevents misalignment and protects pins Environmental Operating Temperature: −25 °C to +85 °C #CommonPartsLibrary #Connector #Header #JSTPH #MalePins #RightAngle #4pos

1.25mm Pitch, PicoBlade PCB Header, Single Row, Vertical, Through Hole, Tin Plating, Friction Lock, 2 Circuits, Tray, 2.30mm PC Tail Length) #CommonPartsLibrary #Connector #Header #Molex #Picoblade01x02

Connector Header Through Hole 6 position 0.165" (4.20mm) 172447-0006 PCB Header Connector for wire-to-board connections, part of the Molex Mini-Fit Jr. series featuring a dual-row vertical through-hole design with 6 circuits, PCB lock pegs, and shrouded male contacts. It supports a 600 V AC/DC voltage rating, 9.0 A maximum current per circuit, 4.20 mm pitch, and operates in a temperature range of -40°C to +105°C. #PCBConnector #HeaderConnector #WireToBoard #ThroughHoleConnector #Molex #MiniFitJr

M8 Circular Connector – 4-position female panel-mount circular connector for industrial signal interconnection. Features through-hole solder termination, straight orientation, threaded coupling, shielded metal shell, IP67 ingress protection, 3 A current rating, 30 VAC operating voltage, and gold-plated socket contacts. Includes a copper alloy shell with nickel plating, board lock, keyed polarization (A-code), and operates over a −40°C to +85°C temperature range. Designed for panel and PCB mounting in automation, industrial, and telecommunications applications. #TEConnectivity #AMP #T4041037041000 #M8Connector #CircularConnector #PanelMount #4Position #FemaleConnector #ShieldedConnector #IP67 #ThroughHole #IndustrialConnector #EmbeddedSystems

Micro-Fit+ Right-Angle Header, 3.00mm Pitch, Dual Row, 10 Circuits, UL 94V-0, Glow-Wire Capable Connector Header Through Hole, Right Angle 10 position 0.118" (3.00mm) The 2125281000 is a Molex Micro-Fit+ right-angle PCB header connector designed for compact and reliable wire-to-board power connections in industrial, embedded, and automotive-adjacent applications. It features a 3.00 mm pitch, dual-row 10-circuit configuration (2x5), and through-hole mounting for strong mechanical retention. The connector supports high-current applications while maintaining a compact footprint. Key Features Manufacturer: Molex Series: Micro-Fit+ MPN: 2125281000 Connector Type: Right-angle PCB header Mounting Type: Through-hole Orientation: Right-angle / side-entry Pitch: 3.00 mm Positions: 10 circuits (2x5) Current Rating: Up to 12.5 A per contact Voltage Rating: 600V AC/DC Contact Plating: Matte tin Housing Material: Glass-filled Liquid Crystal Polymer (LCP) Operating Temperature: -40°C to +105°C Shrouded Design: 4-wall shrouding for secure mating Locking Feature: Locking ramp and board lock for vibration resistance Flammability Rating: UL94 V-0 Glow-Wire Capable: Suitable for safety-focused designs Application: Power and wire-to-board connections Typical Applications Power distribution boards Embedded systems Industrial control equipment Robotics Battery-powered devices Automotive support electronics High-current peripheral connections #CommonPartsLibrary #Connector

JST PH Connector Header Through Hole 2-pin 0.079" (2.00mm) battery connector JST PH 2 pin The B2B-PH-K-S is a 2-position vertical header connector with a 2.0 mm pitch, designed for mating with JST PH series crimp housings (e.g., PHR-2). It is commonly used in consumer electronics, battery connections, and small embedded systems due to its compact size and secure locking mechanism. Key Features Series: JST PH Series Number of Pins: 2 Pitch: 2.0 mm Mounting Type: Through-hole (vertical) Contact Type: Male pin header Mating Type: Friction lock (secure connection) Current Rating: ~2 A (typical, depends on wire and conditions) Voltage Rating: ~100 V Contact Material: Copper alloy (tin-plated) Housing Material: UL94V-0 rated plastic (flame-retardant) Operating Temperature: Typically -25°C to +85°C Typical Applications Battery connectors (Li-ion/LiPo packs) Power supply connections in small devices Embedded systems (e.g., Arduino, sensors) Consumer electronics (fans, LEDs, small appliances) #CommonPartsLibrary #Connector #Header #JST-PH

Phase Lock Loop (PLL) IC 21MHz 1 16-SOIC (0.154", 3.90mm Width) #CommonPartsLibrary #IntegratedCircuit #Clock/Timing #PLLs #Frequency-Synthesizer #74HC4046

Connector Header Surface Mount, Right Angle 15 position 0.049" (1.25mm) The 0532611571 is a wire-to-board crimp housing connector manufactured by Molex, belonging to the Mini-Lock series. It is designed for compact, high-reliability connections in power and signal applications. This connector supports secure mating with corresponding headers and is commonly used in consumer electronics, industrial equipment, and automotive systems where space-saving and reliable contact are required. Key Features Compact wire-to-board connector system Positive locking mechanism for secure mating Designed for crimp terminal insertion Suitable for both power and signal transmission Polarized housing to prevent misalignment Friction lock for retention stability Mechanical Characteristics Number of positions: 15 Pitch: 2.50 mm Mounting type: Free-hanging (in-line) Contact termination: Crimp Housing material: Thermoplastic (UL-rated) Color: Natural (typical) Electrical Characteristics Rated voltage: Up to 250 V Current rating: Up to 3 A per contact (dependent on wire gauge and terminals used) Contact resistance: Low resistance design for reliable conduction Insulation resistance: High insulation performance Environmental Characteristics Operating temperature range: -40°C to +105°C RoHS compliant Suitable for standard environmental conditions in electronic assemblies Compatible Components Mating headers: Molex Mini-Lock series headers (2.50 mm pitch) Crimp terminals: Molex Mini-Lock crimp terminals (e.g., 50212 series) Applications Consumer electronics Industrial control systems Automotive electronics Power distribution within compact devices #commonpartslibrary #connector

Projected Plunger No lock Lying DPDT PCPin White 250gf@±50gf Plugin Push Switches ROHS #CommonPartsLibrary #switch