ATS400-E

Crystals Overview

The ATS400-E is a 40 MHz fundamental mode quartz crystal manufactured by CTS-Frequency Controls. It features a frequency tolerance of ±30ppm and stability of ±50ppm, housed in an HC-49/US through-hole package with a load capacitance of 20pF. The component operates within a temperature range of -20°C to +70°C and exhibits an equivalent series resistance (ESR) of 80 Ohms.

Crystals Feature Summary

• Fundamental resonance mode operation for stable frequency generation
• HC-49/US through-hole package design for standard mounting
• Compliant with RoHS3 environmental standards

Crystals Applications

• General-purpose clock signal generation
• Microcontroller oscillator circuits
• Communication interface timing references

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and tolerance specifications. Confirm that the required frequency tolerance and load capacitance align with the target circuit design before finalizing procurement orders.

Crystals Selection Notes

Select this component when fundamental mode operation at 40 MHz is required for through-hole applications. Ensure the system design accommodates the specified 20pF load capacitance and 80 Ohm ESR characteristics for optimal performance.

Crystals Part Context

This part belongs to the ATS series of quartz crystals from CTS-Frequency Controls. The series offers various frequency options and package types, including surface mount variants like the ATS400SM, providing flexibility for different PCB layout requirements.

Crystals Replacement Considerations

ATS400: Parameter-equivalent alternative within the same product family.