FC-255 32.7680K-AG5

Crystals Overview

The FC-255 32.7680K-AG5 is a surface-mount tuning fork crystal manufactured by Epson Timing. It operates at a nominal frequency of 32.768 kHz with a frequency tolerance of ±20 ppm. The component features a load capacitance of 7 pF and an equivalent series resistance (ESR) of 65 kOhms. It utilizes a 2-SMD, no-lead package with dimensions of 4.9 mm in length, 1.8 mm in width, and 0.8 mm in height. The device supports soldering via SMD/SMT end types and functions within a temperature range of -40°C to +85°C. This specific part number is listed as obsolete.

Crystals Feature Summary

• Provides precise timing signals for real-time clock applications through stable 32.768 kHz oscillation.
• Designed for compact electronic assemblies using a small surface-mount footprint.
• Maintains frequency stability across standard industrial operating temperature ranges.

Crystals Applications

• Real-time clock circuits
• Precision timing modules
• Embedded systems requiring low-power clock sources

Crystals Procurement Notes

This component is officially classified as obsolete and no longer manufactured by the producer. Distributors may offer limited remaining stock or alternative sourcing options, but availability is not guaranteed. Verify the current lifecycle status directly with authorized suppliers before design finalization. Consider engineering change notices regarding end-of-life notifications to ensure long-term supply chain stability for existing products.

Crystals Selection Notes

Select this component only if the specific 32.768 kHz frequency, 7 pF load capacitance, and ±20 ppm tolerance align with circuit requirements. Due to its obsolete status, verify compatibility with replacement parts from the same manufacturer family. Ensure the PCB layout accommodates the 4.9 mm x 1.8 mm SMD package dimensions and supports the required soldering profile for lead-free components.

Crystals Part Context

The FC-255 series represents Epson's line of miniature tuning fork crystals designed for space-constrained applications. This model belongs to the standard kHz crystal category, optimized for low power consumption and high stability. The AG5 suffix denotes specific packaging and termination characteristics within the product configuration guide for 32.7680 kHz devices.

Crystals Replacement Considerations

Public confirmed substitutes include similar models such as the FC-12M 32.7680KA-AC0. Verify electrical parameters and mechanical dimensions match the original design specifications when transitioning to alternative part numbers.