402WF40012IKR

Crystals Overview

The CTS-Frequency Controls 402WF40012IKR is a 40 MHz quartz crystal resonator designed for surface mount applications. It features a frequency tolerance of ±10 ppm and a frequency stability of ±20 ppm across an operating temperature range of -40°C to +85°C. The component utilizes a 4-SMD, no-lead package with dimensions of 2.00 mm x 1.60 mm x 0.55 mm. It operates with a load capacitance of 8 pF and exhibits an equivalent series resistance (ESR) of 50 Ohms. The device supports a maximum drive level of 10 µW and is compliant with RoHS standards.

Crystals Feature Summary

• Compact 4-SMD no-lead package design suitable for high-density PCB layouts
• Enhanced frequency stability within the specified industrial temperature range
• Low equivalent series resistance for efficient circuit integration

Crystals Applications

• Digital signal processing controller clock sources
• Industrial communication interface timing
• Embedded system microcontroller oscillators

Crystals Procurement Notes

Verify the specific suffix 'IKR' against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure the load capacitance requirement of the target oscillator circuit matches the 8 pF specification. Confirm that the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the ESR value with circuit simulation models for impedance matching accuracy.

Crystals Selection Notes

Select this component when a small form factor is required alongside tight frequency tolerance specifications. The 40 MHz frequency is suitable for standard digital logic timing. Consider the 8 pF load capacitance requirement when designing the oscillator circuit to ensure accurate frequency generation. Verify that the 50 Ohm ESR aligns with the driving capability of the host microcontroller or oscillator IC.

Crystals Part Context

This part belongs to the 402W series of surface mount crystals from CTS-Frequency Controls. The series is characterized by its small footprint and reliability in demanding electronic environments. The 402WF variant specifically denotes enhanced performance characteristics compared to standard 402 series components, offering improved stability and lower profile dimensions for modern compact electronics.

Crystals Replacement Considerations

Direct substitutes include the 402WF40012IMR, which shares similar electrical parameters but may differ in packaging quantity or specific manufacturing lot details. Always verify pin compatibility and mechanical dimensions before substitution. Consult the manufacturer's official replacement guide for approved equivalents.