LFXTAL025159

Overview

The LFXTAL025159 is a quartz crystal resonator manufactured by IQD Frequency Products, operating at a fundamental frequency of 32.768 kHz. It features a load capacitance (CL) of 12.5 pF and an equivalent series resistance (ESR) maximum of 40 kOhms. The component provides a frequency tolerance of ±20 ppm and operates within a temperature range of -40°C to +85°C. Designed for surface-mount applications, it utilizes a cylindrical can package with radial leads, measuring 9.50 mm in diameter and 2.54 mm in length, with a maximum installation height of 1.80 mm.

Feature Summary

• Optimized for low-power real-time clock circuits through minimal drive level requirements
• High reliability in cold environments due to low equivalent series resistance
• Standardized load capacitance compatible with mainstream RTC integrated circuits

Applications

• Battery-powered industrial gateways requiring precise timekeeping
• Consumer electronics utilizing real-time clock functionality
• Industrial control systems operating in wide temperature ranges

Procurement Notes

Verify the manufacturer part number against official IQD documentation to ensure authenticity. Confirm that the specific order suffix matches the required packaging format, such as tape and reel or cut tape, prior to procurement. Ensure compliance with RoHS and REACH regulations is documented for the specific batch. Cross-reference the IQD alias LFXTAL025159Reel if sourcing from distributors using alternative nomenclature.

Selection Notes

Select this component when designing for low-power RTC applications where high ESR values might cause oscillation failure at lower temperatures. The 12.5 pF load capacitance aligns with standard RTC chip internal capacitors, reducing board space requirements. Consider the cylindrical SMD form factor for compact designs while ensuring adequate clearance for the radial lead structure during assembly.

Part Context

This crystal belongs to the CFPX-56 series, specifically engineered for precision timing applications. As part of IQD's extensive portfolio, it represents a specialized solution for maintaining accurate time in battery-operated devices. The component supports the transition from traditional through-hole crystals to more compact surface-mount implementations without compromising frequency stability.

Replacement Considerations

Direct substitutes include the Wurth Elektronik part number 830025159, which shares identical electrical specifications and physical dimensions. Verify pin compatibility and mounting orientation when replacing components in existing layouts.