7B-12.000MBBK-T

Crystals Overview

The 7B-12.000MBBK-T is a parallel fundamental mode quartz crystal resonator manufactured by TXC Corporation. It operates at a nominal frequency of 12.000 MHz with a load capacitance of 20 pF and a frequency tolerance of ±30 ppm. The component supports a drive level of 1 µW and exhibits an aging rate of ±3 ppm per year. Designed for surface mount applications, it utilizes an SMD-4 package with dimensions of 5.0 mm x 3.2 mm. The device functions within a temperature range of -40°C to +85°C and complies with RoHS3 standards.

Crystals Feature Summary

• Parallel fundamental mode operation for stable frequency generation
• Low drive level specification of 1 µW for power efficiency
• Compact SMD-4 surface mount packaging suitable for space-constrained designs

Crystals Applications

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

Crystals Procurement Notes

Verify the current manufacturing status before procurement as this specific part number may be discontinued or subject to end-of-life notifications. Confirm that the 20 pF load capacitance matches the circuit design requirements. Ensure the SMD-4 footprint aligns with the PCB layout specifications. Check for authorized distributor availability to guarantee component authenticity and traceability.

Crystals Selection Notes

Select this component when a compact 12 MHz reference is required for wireless applications. The ±30 ppm tolerance and ±3 ppm/year aging provide sufficient stability for consumer electronics. Verify that the 1 µW drive level is compatible with the oscillator circuit to prevent over-driving the crystal. Ensure the -40°C to +85°C operating range meets the environmental conditions of the target application.

Crystals Part Context

This component belongs to the TXC 7B series of surface mount crystals. The series is characterized by small form factors, specifically the 5x3.2 mm SMD-4 package, designed to minimize PCB area usage. It targets high-volume consumer electronics where size, cost, and reliability are critical factors for mass production.

Crystals Replacement Considerations

Consider the 7B-12.000MAHJ-T as a potential alternative if available, noting its similar series classification. Verify electrical equivalence regarding load capacitance and frequency tolerance. Check for any physical dimension differences in the SMD-4 package to ensure mechanical compatibility during replacement.