7B-18.432MAAJ-T

Crystals Overview

The TXC CORPORATION 7B-18.432MAAJ-T is a surface-mount quartz crystal resonator operating at a fundamental frequency of 18.432 MHz. It features a load capacitance of 18 pF and maintains a frequency tolerance and stability of ±30 ppm across the commercial temperature range of -20°C to +70°C. The component utilizes a 4-SMD, no-lead package with dimensions of 5.00 mm in length, 3.20 mm in width, and a maximum height of 1.05 mm. It exhibits an equivalent series resistance (ESR) of 40 Ohms and complies with RoHS3 standards.

Crystals Feature Summary

• Fundamental mode operation for precise timing control
• Surface-mount design compatible with automated assembly processes
• RoHS3 compliant construction for environmental safety

Crystals Applications

• RFID reader circuits requiring 13.56 MHz or similar clock sources
• Microcontroller system clock generation
• Communication interface timing references

Crystals Procurement Notes

This specific part number is officially discontinued and no longer manufactured by TXC Corporation. Procurement should focus on verified replacement components such as the 7M-18.432MAAJ-T. Verify that substitute parts match the required electrical specifications and physical footprint before integration into production lines.

Crystals Selection Notes

Designers must account for the discontinuation status when selecting this component. Ensure that any alternative selection maintains the 18.432 MHz frequency, 18 pF load capacitance, and ±30 ppm stability. Confirm that the replacement package matches the 5.00mm x 3.20mm footprint to avoid PCB redesign.

Crystals Part Context

The 7B series represents a line of standard surface-mount quartz crystals from TXC Corporation. These components are designed for general-purpose timing applications where moderate stability is sufficient. The 7B-18.432MAAJ-T specifically targets common microcontroller clock frequencies within the commercial temperature range.

Crystals Replacement Considerations

The 7M-18.432MAAJ-T is a confirmed direct replacement for the 7B-18.432MAAJ-T. Both share identical electrical parameters and package dimensions, ensuring pin-to-pin compatibility without circuit modification.