LP147F35IET

Crystals Overview

The LP147F35IET is a surface-mount MHz crystal manufactured by CTS-Frequency Controls. It operates at a fundamental frequency of 14.7456 MHz with a load capacitance of 20 pF. The component exhibits a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm. Its equivalent series resistance (ESR) is specified as 40 Ohms. The device utilizes an HC-49/US-SM package, measuring 11.10 mm in length, 4.83 mm in width, and up to 3.20 mm in height. It supports a base harmonic operating mode within a temperature range of -40°C to +85°C.

Crystals Feature Summary

• Slim HC-49/US-SM metal package design for surface mount applications
• Fundamental crystal design architecture
• RoHS3 compliant construction

Crystals Applications

• General purpose timing circuits requiring 14.7456 MHz reference
• Consumer electronics utilizing SMD crystal oscillators
• Industrial control systems operating within extended temperature ranges

Crystals Procurement Notes

Verify the specific suffix 'IET' against the manufacturer's official datasheet to confirm the exact load capacitance and tolerance specifications. Ensure the ordering documentation matches the HC-49/US-SM package dimensions required for the target PCB layout. Confirm RoHS3 compliance status if environmental regulations apply to the final assembly process.

Crystals Selection Notes

Select this component when a 14.7456 MHz fundamental frequency is required with a 20 pF load capacitance. Consider the ±30 ppm tolerance and ±50 ppm stability limits relative to system clock accuracy requirements. Evaluate the HC-49/US-SM form factor against available board space constraints compared to standard through-hole variants.

Crystals Part Context

This part belongs to the ATSSMLP series of crystals from CTS-Frequency Controls. It shares the physical HC-49/US-SM footprint with other models in the family but differs in electrical parameters such as load capacitance and tolerance. It serves as a surface-mount alternative to traditional leaded crystal packages.

Crystals Replacement Considerations

LP147F33IDT is listed as a parameter-equivalent substitute. Verify that the 18 pF load capacitance of the substitute is compatible with the circuit design, as it differs from the 20 pF specification of the LP147F35IET.