HC49/SMD-BF1850-19.6608M-TR

Crystals Overview

The HC49/SMD-BF1850-19.6608M-TR is a surface-mount quartz crystal manufactured by Transko Electronics, Inc. It operates at a nominal frequency of 19.6608 MHz with a load capacitance of 18 pF. The component features a frequency tolerance of ±50 ppm and a series resistance of 40 Ohms. Designed for industrial applications, it utilizes the HC-49/US package format adapted for surface mounting.

Crystals Feature Summary

• Surface-mount construction compatible with standard automated assembly processes
• Industrial-grade frequency stability suitable for precision timing circuits
• HC-49/US form factor enabling direct replacement in legacy through-hole footprints

Crystals Applications

• Microcontroller external clock sources
• Industrial data acquisition systems
• Communication interface timing references

Crystals Procurement Notes

Verify the specific suffix 'BF1850' against the manufacturer's current datasheet to confirm active status and exact electrical parameters. Ensure the ordering configuration matches the required load capacitance and tolerance specifications for the target application circuit design.

Crystals Selection Notes

Select this component when a surface-mount solution is required for an HC-49 footprint without redesigning the PCB layout. Confirm that the 19.6608 MHz frequency aligns with the system clock requirements and that the ±50 ppm tolerance meets the timing accuracy constraints of the application environment.

Crystals Part Context

This part belongs to Transko's HC49/SMD series, which adapts the traditional HC-49/US through-hole crystal package for surface-mount technology. This series allows designers to maintain established mechanical footprints while transitioning to SMD assembly methods, ensuring compatibility with existing board designs.

Crystals Replacement Considerations

Transko offers the TMM oscillator series as a potential alternative for applications requiring MEMS technology. Verify pinout compatibility and electrical parameter equivalence before substituting with other manufacturers' HC-49 style crystals.