HCM494032000ABJT

Crystals Overview

The HCM494032000ABJT is an AT-cut crystal oscillator manufactured by Citizen Finedevice Co Ltd, designed for surface-mount technology (SMD/SMT) applications. It operates at a fundamental frequency of 4.032 MHz with a load capacitance of 18 pF. The component features a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm. It exhibits an equivalent series resistance (ESR) of 150 Ohms and supports a drive level of 100 μW. The device is housed in the HC-49/US package, measuring 11.4 mm in length, 4.7 mm in width, and 4.3 mm in height. It functions within a temperature range of -10°C to +60°C.

Crystals Feature Summary

• Surface-mount construction utilizing the standard HC-49/US package format for automated assembly compatibility.
• AT-cut resonator design providing stable frequency performance under specified electrical conditions.
• Optimized for low power consumption with a defined drive level capability of 100 μW.

Crystals Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing references in communication interface circuits
• Frequency control in consumer electronic devices

Crystals Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target circuit design before procurement. Confirm that the surface-mount package dimensions align with the PCB footprint specifications. Ensure the drive level constraints are respected to maintain long-term frequency stability and prevent overdriving the crystal element during operation.

Crystals Selection Notes

Select this component when a 4.032 MHz reference is required for SMD-based designs using the HC-49/US form factor. Consider the ±30 ppm tolerance and 150 Ohm ESR characteristics for circuit impedance matching. Evaluate the -10°C to +60°C operational window against environmental conditions. Compare against alternative frequencies if system timing requirements differ from 4.032 MHz.

Crystals Part Context

This part belongs to the HCM49 series of crystals from Citizen Finedevice Co Ltd. The series encompasses various frequencies within the HC-49/US SMD package. The HCM494032000ABJT specifically addresses the need for a 4.032 MHz source, a common frequency derived from standard clock dividers in digital systems. It shares physical dimensions with other variants in the family but differs in electrical parameters such as frequency and ESR.

Crystals FAQ

What is the maximum drive level for the HCM494032000ABJT?

The maximum recommended drive level is 100 μW.

Does the HCM494032000ABJT support through-hole mounting?

No, it is designed for surface-mount (SMD/SMT) installation only.