7B-25.000MAAJ-T

Crystals Overview

The TXC Corporation 7B-25.000MAAJ-T is a surface-mount quartz crystal resonator operating at a fundamental frequency of 25 MHz. It features a frequency tolerance and stability of ±30 ppm at 25°C, with a load capacitance of 18 pF. The component utilizes a 4-SMD, no-lead package measuring 5.00 mm in length, 3.20 mm in width, and 1.05 mm in maximum height. It operates within a temperature range of -20°C to +70°C and has an equivalent series resistance (ESR) of 40 Ohms.

Crystals Feature Summary

• Utilizes a compact 5.00 mm x 3.20 mm SMD footprint for space-constrained designs
• Provides stable oscillation with ±30 ppm frequency stability across the industrial temperature range
• Features low equivalent series resistance suitable for standard oscillator circuits

Crystals Applications

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

Crystals Procurement Notes

This specific part number is officially classified as obsolete and is no longer manufactured by TXC Corporation. Procurement should focus on verified replacement components rather than sourcing this discontinued item. Verify that substitute parts meet all electrical and mechanical requirements before integration into production systems.

Crystals Selection Notes

Engineers selecting a replacement must account for the discontinuation of the 7B series. The primary consideration is identifying a component with identical dimensions, pin configuration, and electrical parameters such as 25 MHz frequency, 18 pF load capacitance, and ±30 ppm stability. Ensure the substitute supports the required operating temperature range and mounting style.

Crystals Part Context

The 7B series represents a line of small-volume surface-mount crystals designed for wireless applications. This specific model belongs to a family known for optimizing EMI characteristics and reducing PCB area usage compared to traditional packages like HC-49S. The series targets consumer electronics requiring reliable timing solutions in compact form factors.

Crystals Replacement Considerations

The 7M-25.000MAAJ-T is documented as a similar substitute part number from TXC Corporation.