12.6003

Crystals Overview

The Geyer Electronic America, Inc. model 12.6003 is a passive quartz crystal component designed for frequency control applications. It operates at a nominal frequency of 12.6003 MHz and utilizes a 4-SMD, No Lead package configuration suitable for surface-mount assembly. Key electrical characteristics include an Equivalent Series Resistance (ESR) of 500 Ohms, an insulation resistance of 500 Megaohms, and a drive level specification of 200 microwatts. The device features first-year aging performance typical of super ultra-miniature crystals intended for compact electronic systems.

Crystals Feature Summary

• Super ultra-miniature footprint optimized for space-constrained designs
• Passive quartz construction for stable frequency generation
• Surface-mount compatible with no-lead SMD packaging

Crystals Applications

• Hearing aids
• Earbuds
• Wireless applications

Crystals Procurement Notes

Verify the specific ordering suffix against the official Geyer Electronic America datasheet to ensure correct tolerance and load capacitance specifications. Confirm that the 4-SMD package variant matches your PCB layout requirements. Request detailed test reports or sample units to validate ESR and aging parameters before mass production integration.

Crystals Selection Notes

Select this component when ultra-small form factors are critical for hearing aid or earbud designs. Ensure the circuit design supports the specified 200 microwatt drive level to prevent frequency instability. Verify compatibility with the 500 Ohm ESR value within the oscillator circuit topology.

Crystals Part Context

This part belongs to the KX-2 series of quartz crystals from Geyer Electronic America. The series is characterized by its super ultra-miniature dimensions, targeting the medical and consumer audio markets where size reduction is paramount. It complements the manufacturer's broader portfolio of oscillators and ceramic resonators.

Crystals Replacement Considerations

Consult the official Geyer replacement guide for direct substitutes. Cross-reference equivalent parts from other manufacturers only if they match the 12.6003 MHz frequency, 4-SMD package, and identical electrical parameters including 500 Ohm ESR.