435F16025IET

Crystals Overview

The 435F16025IET is a 32.768 kHz tuning fork crystal manufactured by CTS-Frequency Controls. It operates within a temperature range of -40°C to +105°C and utilizes a 2-SMD, No Lead package. The component features a load capacitance of 20pF and an equivalent series resistance (ESR) of 50 Ohms. Designed for fundamental mode operation, it provides frequency stability of ±25ppm with a tolerance of ±25ppm. The device complies with RoHS3 standards and holds an MSL rating of 1.

Crystals Feature Summary

• Specialized tuning fork design optimized for low-frequency timing applications
• Extended industrial temperature range capability from -40°C to +105°C
• Compact surface-mount form factor suitable for space-constrained layouts

Crystals Applications

• Real-time clock circuits in consumer electronics
• Timekeeping modules in portable devices
• Low-power embedded system oscillators

Crystals Procurement Notes

Verify the specific suffix 'IET' against official CTS documentation to confirm exact packaging and tape specifications. Ensure the requested quantity aligns with standard reel sizes. Confirm that the operating environment remains within the specified -40°C to +105°C range to maintain frequency accuracy. Cross-reference the 20pF load capacitance requirement with the host circuit design before finalizing procurement orders.

Crystals Selection Notes

Select this component when a precise 32.768 kHz reference is required for timekeeping functions. The wide temperature range makes it suitable for harsh environments compared to commercial-grade alternatives. Verify that the 50 Ohm ESR matches the oscillator circuit's drive level requirements. Consider the 2-SMD package dimensions for PCB layout constraints during the initial design phase.

Crystals Part Context

This part belongs to the 435 series of tuning fork crystals from CTS-Frequency Controls. These components are distinct from standard AT-cut crystals due to their specific resonant geometry designed for lower frequencies. The series is engineered for high stability in compact packages, serving as a critical timing element in various electronic systems requiring accurate second-level counting.

Crystals Replacement Considerations

Public confirmed substitute part numbers: None.