435F13C33IET

Crystals Overview

The 435F13C33IET is a surface-mount quartz crystal resonator manufactured by CTS-Frequency Controls. It operates at a fundamental frequency of 13.56 MHz with a frequency tolerance and stability of ±30ppm. The component features a load capacitance of 20pF and an equivalent series resistance (ESR) of 60 Ohms. It utilizes a 2-SMD, No Lead package with dimensions of 5.0mm x 3.2mm and a maximum seated height of 1.10mm. The device supports a wide operating temperature range from -40°C to +85°C and is supplied in tape and reel packaging for automated assembly processes.

Crystals Feature Summary

• Provides stable oscillation at 13.56 MHz with high frequency accuracy suitable for precision timing applications.
• Designed for surface mount technology using a compact 2-pad no-lead footprint to facilitate automated PCB assembly.
• Operates reliably across a broad industrial temperature range from -40°C to +85°C.

Crystals Applications

• RFID reader and tag oscillator circuits
• Wireless communication module clock sources
• Industrial control system timing references

Crystals Procurement Notes

Verify the specific suffix 'IET' corresponds to the required tape and reel packaging configuration rather than cut tape or bulk. Confirm that the 20pF load capacitance matches the oscillator circuit design requirements. Ensure the 60 Ohm ESR value is compatible with the host microcontroller or oscillator IC specifications. Check RoHS compliance status if environmental regulations apply to the final product assembly.

Crystals Selection Notes

Select this component when a 13.56 MHz fundamental mode crystal is required for space-constrained designs. The 2-SMD no-lead package offers a smaller profile compared to traditional HC-49/U packages. Consider the ±30ppm stability requirement against the total system tolerance budget including temperature drift. Verify that the 20pF load capacitance aligns with the external capacitors used in the Pierce oscillator circuit.

Crystals Part Context

This part belongs to the CTS 435 series of surface-mount crystals. It serves as a frequency-determining element in electronic circuits requiring precise clock signals. The 13.56 MHz frequency is commonly used in short-range wireless technologies. The component replaces older through-hole crystals where board space is limited.

Crystals Replacement Considerations

GL153F33IET is listed as a similar alternative within the same manufacturer portfolio. TS153F33IET is also identified as a comparable option. Verify pin compatibility and electrical parameters before substitution. Ensure the replacement maintains the required 13.56 MHz frequency and ±30ppm stability.