HC49USM-FF5F18-3.6864MHZ

$0.26

Description：CRYSTAL 3.6864MHZ 18PF SMD
Series：HC49USM
Mfr：ILSI
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:87b813235128 Category: Crystals Brand: ILSI

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Product introduction

HC49USM-FF5F18-3.6864MHZ is listed in the Crystals range at ChipApex. The manufacturer field lists ILSI. Its product description is CRYSTAL 3.6864MHZ 18PF SMD. Review the specifications below when checking this part for your BOM.

Crystals specifications for HC49USM-FF5F18-3.6864MHZ

Description：CRYSTAL 3.6864MHZ 18PF SMD
Series：HC49USM
Mfr：ILSI
Package：Tape & Reel (TR),Cut Tape (CT)
Type：MHz Crystal
Frequency：3.6864 MHz
Frequency Stability：±30ppm
Frequency Tolerance：±30ppm
Load Capacitance：18pF
ESR (Equivalent Series Resistance)：200 Ohms
Operating Mode：Fundamental
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Surface Mount
Package / Case：HC-49/US
Size / Dimension：0.449" L x 0.186" W (11.40mm x 4.73mm)
Height - Seated (Max)：0.177" (4.50mm)

Crystals datasheet and documents for HC49USM-FF5F18-3.6864MHZ

HC49USM-FF5F18-3.6864MHZ

Crystals Overview

The ILSI HC49USM-FF5F18-3.6864MHZ is a quartz crystal resonator housed in a HC-49/US surface-mount package. It operates at a fundamental frequency of 3.6864 MHz with a specified load capacitance of 20 pF. The component features a parallel resonant mode and utilizes silver electrode construction. Key electrical parameters include a maximum equivalent series resistance (ESR) of 50 ohms and a frequency tolerance of ±30 ppm at room temperature. The unit is designed for standard through-hole or surface-mount assembly processes, providing stable oscillation for timing circuits.

Crystals Feature Summary

Fundamental mode operation for precise frequency generation
HC-49/US package format compatible with automated assembly
Silver electrode construction for reliable performance

Crystals Applications

Microcontroller clock sources
Communication module timing references
Digital logic circuit oscillators

Crystals Procurement Notes

Verify the specific suffix codes against manufacturer documentation to confirm exact tolerance, stability, and load capacitance requirements. Ensure the selected variant matches the target circuit's impedance and drive level specifications. Cross-reference the datasheet for storage conditions and soldering profiles to maintain component integrity during procurement and handling.

Crystals Selection Notes

Select this component based on the required operating frequency of 3.6864 MHz and the system's load capacitance needs. Confirm that the package style meets the PCB layout constraints. Evaluate the frequency stability requirements against the ±30 ppm specification to ensure compatibility with the application's timing accuracy standards.

Crystals Part Context

This part belongs to the HC-49/US family of quartz crystals, widely used in consumer electronics and industrial control systems. These components are known for their compact size and cost-effectiveness compared to larger ceramic packages. The HC-49/US form factor allows for high-volume production integration while maintaining consistent electrical characteristics across manufacturing batches.