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Product Detailed Parameters
- Description：CRYSTAL 27.0000MHZ 18PF SMD
- Series：HC49/4HSMX
- Mfr：IQD Frequency Products
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MHz Crystal
- Frequency：27 MHz
- Frequency Stability：±50ppm
- Frequency Tolerance：±20ppm
- Load Capacitance：18pF
- ESR (Equivalent Series Resistance)：40 Ohms
- Operating Mode：Fundamental
- Operating Temperature：-20°C ~ 70°C
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：HC49/4HSMX
- Supplier Device Package：HC49/4HSMX
- Size / Dimension：0.528" L x 0.193" W (13.40mm x 4.90mm)
- Height - Seated (Max)：0.169" (4.30mm)
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Overview
LFXTAL059980REEL is a 27 MHz quartz crystal resonator from the HC49/4HSMX series by IQD Frequency Products. It features a frequency tolerance of ±20 ppm and stability of ±50 ppm with an 18 pF load capacitance. The component operates in fundamental mode with a maximum equivalent series resistance (ESR) of 40 Ohms. Designed for surface mount installation, it utilizes an HC-49/US package measuring 11.40 mm x 4.90 mm x 4.30 mm. The unit supports a commercial operating temperature range of -20°C to +70°C.
Feature Summary
- Surface mount design within standard HC-49/US footprint dimensions
- Fundamental oscillation mode operation
- Commercial grade thermal performance rating
Applications
- General purpose clock signal generation
- Microcontroller system timing references
- Consumer electronic device synchronization
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging configuration. Confirm that the designated load capacitance matches the target circuit design requirements. Check the active status of the component through official channels prior to finalizing procurement plans.
Selection Notes
Select this component when a 27 MHz reference frequency is required for surface mount assembly. Ensure the application environment remains within the specified -20°C to +70°C operational limits. Verify that the circuit impedance aligns with the 18 pF load capacitance specification for accurate frequency maintenance.
Part Context
This part belongs to the HC49/4HSMX series, representing a transition from traditional through-hole crystals to surface mount variants. It maintains the electrical characteristics of its predecessor while adapting to automated PCB assembly processes. The series provides a standardized form factor for modern electronics manufacturing.
Replacement Considerations
Cross-reference with other 27 MHz SMD crystals having identical 18 pF load capacitance and similar ESR values. Verify mechanical compatibility with the existing HC-49/US footprint before substituting.
