AH-32.768KEWF-T

Crystals Overview

The AH-32.768KEWF-T is a surface-mount tuning fork crystal manufactured by TXC Corporation, designed for precision timing applications. It operates at a nominal frequency of 32.768 kHz with a frequency tolerance of ±30 ppm at 25°C. The component features a load capacitance (CL) of 12.5 pF and an equivalent series resistance (ESR) of 70 kOhms maximum. It utilizes a 2-SMD, no-lead package measuring 3.20mm x 1.50mm with a maximum height of 0.85mm. The device supports a wide operating temperature range from -40°C to +125°C and meets AEC-Q200 automotive reliability standards.

Crystals Feature Summary

• Complies with AEC-Q200 automotive qualification standards for enhanced reliability in vehicle electronics.
• Supports extended industrial temperature ranges up to +125°C for harsh environment operation.
• Utilizes a compact 2-SMD no-lead footprint suitable for space-constrained surface mount designs.

Crystals Applications

• Automotive electronic systems requiring certified clock sources
• Industrial equipment operating in high-temperature environments
• Real-time clock circuits in consumer electronics

Crystals Procurement Notes

Verify the specific suffix 'KEWF' against official datasheets to confirm the extended temperature rating of +125°C, as standard variants may differ. Ensure compatibility with reflow soldering profiles specified in the manufacturer's guidelines. Confirm RoHS compliance status for environmental regulations. Check for moisture sensitivity level requirements during storage and handling. Validate package dimensions against PCB footprint libraries before finalizing design.

Crystals Selection Notes

Select this component when automotive certification or high-temperature stability is required. The 12.5pF load capacitance dictates external matching capacitor values. Verify that the MCU RTC driver strength aligns with the 70kΩ ESR limit. Consider the physical size constraints of the 3.2x1.5mm package. Evaluate thermal management needs if operating near the upper temperature limit.

Crystals Part Context

This part belongs to the AH series of tuning fork crystals from TXC Corporation. It shares the same fundamental 32.768kHz frequency and 12.5pF load capacitance with other models like AH-32.768KAZF-T. The primary distinction lies in the temperature range and packaging suffix, with KEWF indicating the extended high-temperature capability compared to standard industrial grades.

Crystals Replacement Considerations

AH-32.768KAZF-T offers similar electrical parameters but typically covers a narrower temperature range (-40°C to +85°C). Micro Crystal CM7V-T1A-32.768KHZ-12.5PF-20PPM-TB-QA provides tighter frequency tolerance but requires verification of temperature ratings and package compatibility.