9B-40.000MAAJ-B

Crystals Overview

The TXC Corporation 9B-40.000MAAJ-B is a resistance-welded quartz crystal unit designed for standard frequency applications. It operates at a nominal frequency of 40.000 MHz with a load capacitance of 18 pF. The component utilizes an HC-49/S package and supports through-hole mounting. This series offers higher frequency pullability and lower equivalent series resistance compared to conventional units, providing a cost-effective solution for timing circuits requiring stable oscillation.

Crystals Feature Summary

• Resistance-welded construction for durability
• Higher frequency pullability characteristics
• Lower equivalent series resistance (ESR)
• Cost-effective standard frequency generation

Crystals Applications

• Standard clock signal generation in digital systems
• Timing references for microcontroller circuits
• Frequency control in communication equipment
• General-purpose oscillator circuits

Crystals Procurement Notes

Verify the specific load capacitance and frequency tolerance requirements against the application design specifications before procurement. Confirm that the HC-49/S package dimensions are compatible with the target PCB layout. Ensure that the operating temperature range aligns with the environmental conditions of the end product to guarantee long-term stability and performance reliability.

Crystals Selection Notes

Select this component when a low-cost, reliable quartz crystal is required for fixed-frequency applications. The 9B series is suitable for designs prioritizing lower ESR and improved pullability over ultra-high precision. Consider the HC-49/S form factor for through-hole assembly processes. Evaluate the trade-off between cost and performance if tighter tolerances or surface-mount packages are necessary for the specific system constraints.

Crystals Part Context

The 9B series represents a line of standard resistance-welded quartz crystals from TXC Corporation. These components are engineered for general-purpose timing applications where cost efficiency and moderate performance are balanced. The series includes various frequencies, with the 40.000 MHz variant serving as a common clock source. The HC-49/S package is widely used in legacy and modern through-hole designs for its robustness and ease of integration.

Crystals Replacement Considerations

Direct substitutes include other 40.000 MHz crystals in the HC-49/S package with matching 18 pF load capacitance. Verify equivalent electrical parameters such as ESR and frequency stability before substitution. Alternative manufacturers may offer similar specifications, but mechanical compatibility and soldering process requirements must be confirmed.