12.85533

Crystals Overview

The Geyer Electronic America, Inc. part number 12.85533 is a quartz crystal resonator designed for surface-mount applications. It operates at a fundamental frequency of 24.5760 MHz with a specified tolerance of ±50ppm. The component features a load capacitance of 8pF and an equivalent series resistance (ESR) of 100 Ohms. It utilizes a 4-SMD, No Lead package configuration, specifically the KX-5T footprint. Physical dimensions include a length of 2.00mm, width of 1.60mm, and a maximum seated height of 0.45mm. The device is supplied in Tape & Reel packaging.

Crystals Feature Summary

• Super ultra-miniature footprint suitable for space-constrained designs
• Surface-mount construction for automated assembly processes
• Quartz resonator technology for stable frequency generation

Crystals Applications

• Hearing aids
• Earbuds
• Wireless communication devices

Crystals Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required frequency tolerance and load capacitance specifications. Confirm that the KX-5T package dimensions align with the target PCB land pattern. Check manufacturer documentation for RoHS compliance status and recommended soldering profiles to prevent thermal damage during reflow processes. Ensure storage conditions meet humidity sensitivity requirements prior to assembly.

Crystals Selection Notes

Select this component when a compact quartz crystal is required for portable audio or wireless applications. The 24.5760 MHz frequency is commonly used in digital audio interfaces and Bluetooth modules due to its divisibility into standard clock rates. Consider the ±50ppm tolerance against system timing requirements. Evaluate the 8pF load capacitance against the oscillator circuit design to ensure accurate frequency operation without external trimming.

Crystals Part Context

This part belongs to the Geyer KX-2 series of quartz crystals, which are characterized by their super ultra-miniature form factor. The series is engineered specifically for high-density electronics where board real estate is limited. These components serve as primary frequency references in consumer electronics, providing reliable oscillation for microcontrollers and communication transceivers in small-footprint devices.

Crystals Replacement Considerations

Direct substitutes must match the 24.5760 MHz frequency, 8pF load capacitance, and 4-SMD No Lead package geometry. Verify ESR values near 100 Ohms to maintain oscillator startup reliability. Cross-reference mechanical dimensions (2.00 x 1.60 x 0.45 mm) to ensure fit within existing enclosures and PCB layouts.