7B-50.000MAAJ-T

Crystals Overview

The TXC Corporation 7B-50.000MAAJ-T is a discontinued quartz crystal resonator operating at a fundamental frequency of 50 MHz. It features a frequency stability and tolerance of ±30 ppm, with a load capacitance of 18 pF. The component utilizes a third overtone mode and exhibits an equivalent series resistance (ESR) of 120 Ohms. It is housed in a 4-SMD, no-lead package measuring 5.00 mm x 3.20 mm x 1.05 mm. The device supports surface-mount installation and functions within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Third overtone operation for high-frequency stability
• Compact 5.0x3.2mm SMD footprint for space-constrained designs
• Industrial temperature range capability

Crystals Applications

• Bluetooth portable devices
• Wireless communication equipment
• USB interface cards

Crystals Procurement Notes

This component is officially discontinued and no longer manufactured by TXC Corporation. Verification of current availability should focus on identifying valid substitute part numbers from the same manufacturer or compatible alternatives. Procurement efforts must prioritize checking replacement options rather than sourcing the original part number directly.

Crystals Selection Notes

Engineers should note that this specific model is obsolete. Selection processes must transition to approved replacements such as the 7M-50.000MAAJ-T. Designers must verify that alternative components maintain compatibility with existing PCB footprints and electrical requirements, particularly regarding ESR and load capacitance values.

Crystals Part Context

The 7B-50.000MAAJ-T belongs to the TXC 7B series, which specializes in small-volume surface-mount crystals designed for wireless applications. This series addresses the need for reduced PCB area consumption compared to traditional through-hole packages like HC-49S, making it suitable for modern compact electronic devices.

Crystals Replacement Considerations

Public confirmed substitutes include the 7M-50.000MAAJ-T from TXC Corporation and the ABM8-50.000MHZ-B4Y-T from Abracon LLC. These parts are listed as similar replacements for the discontinued 7B series component.