7B-30.000MBBK-T

Crystals Overview

The 7B-30.000MBBK-T is a quartz crystal manufactured by TXC Corporation, designed for surface-mount applications. It operates at a fundamental frequency of 30 MHz with a load capacitance of 20 pF and a frequency tolerance of ±50 ppm. The component utilizes a 4-SMD, No Lead package measuring 5.0 mm x 3.0 mm. It supports a parallel resonant mode and features an equivalent series resistance (ESR) of 40 Ohms. The device functions within a temperature range of -20°C to +70°C and complies with RoHS standards.

Crystals Feature Summary

• Surface-mount quartz crystal with 4-SMD no-lead packaging
• Fundamental resonance mode operation at 30 MHz
• Industrial temperature range stability from -20°C to +70°C
• RoHS compliant construction for environmental safety

Crystals Applications

• Bluetooth portable devices
• Wireless communication equipment
• Digital cameras
• Personal Digital Assistants (PDAs)
• Mobile phones

Crystals Procurement Notes

Verify end-of-life status before finalizing designs, as this specific part number may be discontinued or subject to supply restrictions. Confirm current availability through authorized distributors and check for valid replacement alternatives if production continuity is required. Ensure the selected substitute matches the electrical parameters and physical footprint to maintain circuit integrity without redesign.

Crystals Selection Notes

Select this component when a compact 30 MHz reference is needed for space-constrained wireless applications. The 20 pF load capacitance requires matching external capacitors in the circuit design. Verify that the ±50 ppm tolerance meets system requirements. Consider the 40 Ohm ESR value to ensure reliable oscillation startup conditions are met within the specified operating temperature range.

Crystals Part Context

This part belongs to the TXC 7B series, which focuses on small-volume SMD crystals suitable for modern consumer electronics. The series emphasizes reduced PCB area consumption compared to traditional packages like HC-49S. The 7B-30.000MBBK-T specifically targets applications requiring stable timing signals in portable devices where size and electromagnetic interference performance are critical constraints.

Crystals Replacement Considerations

Public confirmed substitute: 7B-30.000MAAJ-T.