12.9438

Overview

The Geyer Electronic America, Inc. model 12.9438 is a ceramic surface-mount crystal designed for frequency control applications. It operates at a fundamental frequency of 26 MHz with a stability of ±50 ppm and a tolerance of ±10 ppm. The component features a 15 pF load capacitance and an equivalent series resistance (ESR) of 60 ohms. Housed in a compact 4-SMD, no-lead package measuring 3.20mm x 2.50mm x 0.80mm, it supports a wide operating temperature range from -40°C to +105°C. This device belongs to the KX-7 series and is currently available for procurement.

Feature Summary

• Surface-mount ceramic crystal construction for reliable signal transmission
• Wide industrial operating temperature range ensuring stability under thermal stress
• Compact 4-pad SMD footprint suitable for space-constrained designs

Applications

• Frequency reference circuits in consumer electronics
• Clock generation for microcontroller systems
• Signal timing in communication modules

Procurement Notes

Verify the specific ordering suffix required for your packaging preference, such as tape-and-reel or cut-strip formats, when placing orders through authorized distributors like DigiKey. Confirm that the requested quantity aligns with standard reel sizes to avoid partial reel handling issues. Ensure the component status remains active before finalizing procurement plans to maintain supply chain continuity.

Selection Notes

Select this component when a 26 MHz fundamental frequency is required with moderate stability specifications. The 15 pF load capacitance must match the oscillator circuit design to ensure accurate frequency output. Consider the 60 ohm ESR value for impedance matching requirements within the host system's clock generator interface.

Part Context

This part belongs to the KX-7 series of ceramic resonators manufactured by Geyer Electronic America, Inc. These components are classified as Class III life-supporting devices for frequency control products. The manufacturer specializes in quartz crystals, oscillators, and resonators for demanding electronic applications.

Replacement Considerations

Consult official distributor databases for direct cross-reference part numbers. Verify pin compatibility and electrical parameters before substituting with alternative ceramic crystals from other manufacturers.