MP147B

Crystals Overview

The MP147B is a fundamental mode crystal resonator manufactured by CTS-Frequency Controls, designed for precision timing applications. It operates at a nominal frequency of 14.7456 MHz with a frequency tolerance of ±30 ppm and a stability of ±50 ppm across the operating temperature range. The component utilizes an HC-49/U through-hole package, featuring radial termination for standard PCB mounting. Key electrical parameters include a load capacitance of 18 pF and an equivalent series resistance (ESR) of 25 Ohms. It supports base frequency operation modes and is suitable for industrial environments.

Crystals Feature Summary

• Fundamental mode crystal resonator providing stable base frequency operation
• HC-49/U through-hole package with radial leads for reliable surface mounting
• Low equivalent series resistance of 25 Ohms for efficient circuit integration
• Designed for consistent performance within specified industrial temperature ranges

Crystals Applications

• Clock generation circuits requiring precise 14.7456 MHz reference frequencies
• Industrial control systems operating within extended temperature limits
• Communication equipment utilizing fundamental mode crystal oscillators
• General-purpose timing references in embedded electronic designs

Crystals Procurement Notes

Verify that the required frequency tolerance of ±30 ppm and load capacitance of 18 pF align with the target oscillator circuit design. Confirm that the HC-49/U through-hole package dimensions are compatible with the printed circuit board layout and assembly processes. Ensure the operating temperature range meets the environmental requirements of the final application to guarantee long-term reliability and frequency stability under all expected conditions.

Crystals Selection Notes

Select this component when a fundamental mode crystal with low ESR is required for stable clock signals. The HC-49/U package offers robust mechanical integrity for through-hole assembly compared to smaller surface-mount alternatives. Consider the specific load capacitance requirements of the host circuit to ensure accurate frequency tuning. This part is suitable for applications where high-frequency stability is critical but extreme miniaturization is not a primary constraint.

Crystals Part Context

The MP147B belongs to the general category of fundamental mode crystals produced by CTS-Frequency Controls. It shares the HC-49/U form factor common in legacy and industrial timing applications. Unlike voltage-controlled crystal oscillators (VCXOs), this component provides a passive resonant element rather than an active output signal. It serves as a core frequency-determining element in oscillator circuits, distinct from packaged oscillator solutions.

Crystals Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.