Buck Converter Sublayout taken from the Raspberry Pi Compute Module 4 Carrier Board

Connector Header Through Hole 40 position 0.100" (2.54mm) Raspberry Pi 40 pin header The TSW-120-07-G-D is a through-hole, double-row vertical header manufactured by Samtec. It features 40 total positions (2 rows of 20 pins) with a standard 2.54 mm pitch. This connector is widely used for board-to-board connections, prototyping, and general-purpose signal routing in embedded and electronic systems. It is designed for reliable mechanical and electrical performance with gold-plated contacts for enhanced conductivity and corrosion resistance. Manufacturer Samtec Inc. Manufacturer Part Number TSW-120-07-G-D Product Type Through-Hole Pin Header Number of Positions 40 (2 × 20) Number of Rows 2 Pitch 2.54 mm (0.100") Row Spacing 2.54 mm (0.100") Mounting Type Through Hole Orientation Vertical Contact Material Phosphor Bronze Contact Plating Gold (Au) over Nickel Plating Thickness Typically 10 µin (0.25 µm) Gold Insulator Material Black Liquid Crystal Polymer (LCP) Current Rating Typically 3.0 A per contact (depending on application conditions) Voltage Rating Typically 250 VAC Operating Temperature Range -55°C to +125°C Termination Type Solder Contact Style Square Post Post Length Standard Samtec “-07” tail length (approx. 2.92 mm tail, varies slightly per datasheet) Applications Embedded systems (e.g., Raspberry Pi GPIO headers) Development boards and expansion modules Board-to-board interconnects Prototyping and test setups Compliance RoHS Compliant Lead-Free Notes Compatible with standard 2.54 mm female headers and sockets Commonly used in stacking or mezzanine configurations Available in various plating options and pin lengths under the TSW series #commonpartslibrary #connector

Crystal, 12 MHz, SMD, 3.2mm x 2.5mm, 30 ppm, 10 pF, 30 ppm, ABM8 Series ABM8-272-T3 is an ultra-miniature surface-mount quartz crystal from Abracon designed for precision clock generation in embedded systems and microcontroller applications. The crystal operates at 12.000MHz in fundamental AT-cut mode and is packaged in a compact 3.2mm × 2.5mm × 0.8mm ceramic SMD package. It features ±30ppm frequency tolerance and stability, 10pF load capacitance, 50Ω maximum ESR, and low drive power requirements. The device operates across an industrial temperature range of -40°C to +85°C and is hermetically sealed with MSL1 moisture sensitivity rating. The ABM8-272-T3 is approved for use with Raspberry Pi RP2040 and RP235x microcontrollers and is suitable for embedded controllers, IoT devices, communication equipment, industrial electronics, and precision timing applications. Search Keywords: ABM8-272-T3, Abracon ABM8, 12MHz crystal, 12.000MHz crystal, quartz crystal, SMD crystal, ceramic crystal resonator, RP2040 crystal, RP2350 crystal, Raspberry Pi crystal, clock crystal, oscillator crystal, timing crystal, MCU clock source, embedded crystal, surface mount crystal, AT cut crystal, 10pF crystal, 3.2x2.5mm crystal, frequency reference Hashtags: #ABM8272T3 #Abracon #12MHzCrystal #QuartzCrystal #SMDCrystal #ClockSource #Oscillator #TimingCircuit #RP2040 #RP2350 #RaspberryPi #Microcontroller #EmbeddedSystems #IoT #Electronics #ElectronicComponents #PCBDesign #HardwareDesign #FrequencyReference #CrystalOscillator