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ABM3B-12.000MHZ-B2-T

ABM3B-12.000MHZ-B2-T

Abracon LLC
12 MHz ±20ppm Crystal 18pF 70 Ohms 4-SMD, No Lead
Active25,779 in stock
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Overview

The ABM3B-12.000MHZ-B2-T is a 12 MHz surface-mount quartz crystal housed in a compact 5.0 x 3.2 mm 4-pad package. It features a frequency tolerance of +/-20ppm and a load capacitance of 18pF, providing a stable clock reference for a wide range of embedded systems. This component is designed for low-profile applications requiring a balance between precision and physical size.

Why Choose This Part

The 5.0 x 3.2 x 1.1 mm form factor offers a robust footprint for reliable soldering in industrial environments while maintaining a low profile. With a 70 Ohm maximum ESR and +/-20ppm tolerance, it provides reliable startup and frequency stability across its operating temperature range of -20C to +70C.

Applications

Microcontroller Clocking
Provides a primary external clock source for 8-bit and 32-bit MCUs requiring a 12 MHz fundamental frequency.
USB Peripherals
Suitable for USB-to-serial converters and legacy USB controllers that utilize 12 MHz as a base frequency for internal PLLs.
Industrial Control Units
Used in PLC and sensor interface boards where a 12.000MHz reference is standard for timing and communication synchronization.

Key Specifications

Type MHz Crystal
Frequency 12 MHz
Mounting Type Surface Mount
Operating Mode Fundamental
Package / Case 4-SMD, No Lead
Load Capacitance 18pF
Size / Dimension 0.197" L x 0.126" W (5.00mm x 3.20mm)
Frequency Stability +/-50ppm
Frequency Tolerance +/-20ppm
Height - Seated (Max) 0.043" (1.10mm)
Operating Temperature -20degC ~ 70degC
Supplier Device Package 4-SMD (5x3.2)
ESR (Equivalent Series Resistance) 70 Ohms

Getting Started

Ensure that the load capacitors (C1 and C2) are selected to match the 18pF specified load capacitance, accounting for PCB trace parasitics. Place the crystal as close as possible to the MCU oscillator pins to minimize EMI and loop area. Refer to the manufacturer's land pattern for the 4-SMD package to ensure the two grounded pads are correctly connected to the internal EMI shield.

Categories

Clocks & Timing > Crystal Oscillators