AB-12.000MHZ-B2

Overview

The Abracon AB-12.000MHZ-B2 is a 12 MHz quartz crystal resonator designed for surface-mount applications. It features a standard frequency tolerance of ±20 ppm and a frequency stability of ±100 ppm across the operating temperature range. The component operates within a temperature range of -20°C to +70°C and utilizes a 18 pF load capacitance. Key electrical parameters include an equivalent series resistance (ESR) of 30 Ohms and a drive level of 100 uW. The physical dimensions are approximately 11.5 mm in length, 3.46 mm in width, and 13.46 mm in height.

Feature Summary

• Standard 12 MHz fundamental frequency operation
• Compact HC-49/U style surface-mount package design
• Low equivalent series resistance for efficient circuit integration
• Compliant with RoHS environmental standards

Applications

• General purpose clock signal generation
• Microcontroller system timing references
• Consumer electronic device oscillators
• Industrial control circuit timing

Procurement Notes

Verify that the specific order matches the AB-12.000MHZ-B2 part number exactly, as Abracon offers various crystal packages and tolerances. Confirm that the required frequency stability of ±100 ppm meets your system's timing requirements, as tighter tolerances may require different model suffixes. Ensure the operating environment stays within the specified -20°C to +70°C range to maintain performance specifications.

Selection Notes

Select this component when a cost-effective, standard-frequency quartz crystal is needed for non-critical timing applications. The ±20 ppm initial tolerance is suitable for general digital logic circuits but may be insufficient for high-precision communication interfaces. Consider the physical footprint compatibility with your PCB layout, as the HC-49/U SMD form factor requires specific pad spacing compared to smaller MEMS or ceramic resonators.

Part Context

This part belongs to Abracon's standard quartz crystal lineup, typically designated by the 'AB' prefix. These components are widely used in consumer electronics and industrial equipment where moderate frequency accuracy is acceptable. The AB series provides a reliable alternative to through-hole crystals while maintaining similar electrical characteristics, facilitating automated assembly processes in modern manufacturing environments.

Replacement Considerations

Direct substitutes must match the 12 MHz frequency, 18 pF load capacitance, and 30 Ohm ESR. Verify that replacement parts support the same -20°C to +70°C operating range. Cross-reference with other manufacturers' HC-49/SMD packages ensuring identical pinout and mechanical dimensions to ensure board compatibility without redesign.