WC26F-32.768KHZ

Crystals Overview

The MMD WC26F-32.768KHZ is a fundamental mode quartz crystal resonator operating at 32.768 kHz. It features a cylindrical can package with radial leads, measuring 2.1 mm in diameter and 6.2 mm in length. Key electrical specifications include a frequency tolerance of ±20 ppm, a load capacitance of 12.5 pF, and an equivalent series resistance (ESR) of 35 kΩ maximum. The device supports a drive level of 1 μW and exhibits a frequency stability of -0.34 ppm. It operates within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Fundamental oscillation mode for precise timekeeping
• Standard cylindrical can construction with radial termination
• Compliant with RoHS environmental standards

Crystals Applications

• Real-time clock circuits in consumer electronics
• Low-power IoT sensor nodes
• Industrial timing and control systems

Crystals Procurement Notes

Verify the specific suffix 'F' against the manufacturer's current part numbering guide to confirm lead configuration and packaging details. Ensure the selected load capacitance matches the target oscillator circuit requirements to maintain specified frequency accuracy. Confirm that the operating temperature range meets the application's environmental constraints before finalizing procurement.

Crystals Selection Notes

Select this component when a standard 2x6 mm cylindrical form factor is required for through-hole assembly. The 12.5 pF load capacitance is suitable for common RTC architectures. Consider the 35 kΩ ESR limit when designing low-drive oscillator circuits to ensure reliable startup. Validate compatibility with the host microcontroller's crystal input specifications regarding drive strength and loading capacitors.

Crystals Part Context

This part belongs to the WC series of cylindrical crystals manufactured by MMD (Monitor/Quartztek). The series offers various sizes including WC155, WC26, and WC38 to accommodate different space and performance requirements. The WC26 variant represents a standard industry size widely used in general-purpose timing applications.

Crystals Replacement Considerations

Cross-reference with other manufacturers offering 2x6 mm cylindrical crystals with 12.5 pF load capacitance and ±20 ppm tolerance. Verify mechanical pin spacing and electrical parameters such as ESR and drive level before substitution.