LP221F35IET

Crystals Overview

The LP221F35IET is a surface-mount MHz crystal manufactured by CTS-Frequency Controls. It operates at a frequency of 22.1184 MHz with a frequency tolerance of ±30ppm and stability of ±50ppm. The component features a load capacitance of 20pF and an equivalent series resistance (ESR) of 30 Ohms. It utilizes the HC-49/US-SM package, measuring 11.1mm x 4.83mm in size with a maximum height of 3.20mm. Designed for fundamental mode operation, it supports a wide operating temperature range from -40°C to +85°C.

Crystals Feature Summary

• Surface-mount design compatible with automated assembly processes
• Fundamental resonance mode operation for precise timing applications
• Wide industrial temperature rating for environmental resilience

Crystals Applications

• Communication systems requiring stable clock signals
• Microcontroller-based embedded devices
• Industrial control equipment timing circuits

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and specifications. Confirm that the selected variant matches the required load capacitance and frequency tolerance for your circuit design. Check current availability status as lead times may vary. Ensure compliance with RoHS3 regulations if required by your project standards.

Crystals Selection Notes

Select this component when a 22.1184 MHz frequency is required with ±30ppm initial tolerance. The 20pF load capacitance must match the oscillator circuit requirements. Consider the HC-49/US-SM footprint constraints during PCB layout. Verify that the 30 Ohm ESR is within the acceptable limits of the host oscillator circuit for reliable startup.

Crystals Part Context

This part belongs to the ATSSMLP series of surface-mount crystals from CTS-Frequency Controls. It shares similar physical dimensions and mounting characteristics with other members of the LP series, such as LP100F35IDT and LP037F35IET, though electrical parameters like frequency and ESR differ significantly between models.

Crystals Replacement Considerations

ATS169SM-1 is listed as a similar alternative by the distributor.