402F27012ILR

Crystals Overview

The CTS-Frequency Controls 402F27012ILR is a surface-mount MHz crystal designed for the 402 series. It operates at a nominal frequency of 27 MHz with a load capacitance of 12pF and an equivalent series resistance (ESR) of 100 Ohms. The component supports fundamental mode operation and offers a frequency stability of ±20ppm across an operating temperature range of -40°C to +85°C. Packaged in a compact 4-SMD, no-lead form factor measuring 2.00mm x 1.60mm with a maximum height of 0.022 inches, it complies with RoHS3 standards and features a moisture sensitivity level of 1.

Crystals Feature Summary

• Surface-mount construction in a 4-SMD no-lead package
• Fundamental mode operation for stable frequency generation
• Wide industrial temperature rating from -40°C to +85°C

Crystals Applications

• Industrial control systems requiring precise timing
• Consumer electronics utilizing surface-mount assembly
• Communication devices needing 27 MHz reference signals

Crystals Procurement Notes

Verify the specific suffix ILR against official datasheets to confirm tape-and-reel packaging and lead-free compliance. Ensure the design-in process accounts for the 12pF load capacitance requirement to maintain the specified ±20ppm stability. Cross-reference the 402 series mechanical dimensions to validate PCB footprint compatibility before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 27 MHz fundamental crystal is required for harsh environments due to its extended temperature range. Compare the 100 Ohm ESR against circuit oscillator requirements to ensure proper startup conditions. Consider the 2.00mm x 1.60mm package size for space-constrained designs where standard through-hole crystals are unsuitable.

Crystals Part Context

This part belongs to the CTS 402 series of surface-mount crystals, which are characterized by small footprints and robust performance. The series supports various frequencies and load capacitances, providing designers with flexible options for integrating precise timing elements into modern printed circuit boards without compromising reliability or thermal performance.

Crystals Replacement Considerations

Direct substitutes include 402F27012ILT and 402F27012IAR from CTS-Frequency Controls. Verify that alternative packages match the 4-SMD no-lead dimensions and electrical parameters exactly to avoid re-qualification.