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Product Detailed Parameters
- Description：55.4666 MHz XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：55.4666 MHz
- Function：Standby (Power Down)
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：24mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The Mercury Electronics 18QHTF21-55.4666-PD is a quartz crystal resonator designed for high-frequency applications. It operates at a fundamental frequency of 55.4666 MHz. The component utilizes a surface mount technology (SMT) package, specifically the 1812 footprint, to facilitate automated assembly processes. This resonator is engineered to provide stable oscillation with low phase noise characteristics suitable for precision timing circuits.
Feature Summary
- High stability quartz crystal construction
- Surface mount design for automated placement
- Optimized for low phase noise performance
Applications
- Wireless communication modules
- Precision clock generation circuits
- RF signal processing systems
Procurement Notes
Verify the specific ordering suffix and packaging configuration directly with Mercury Electronics or authorized distributors. Ensure that the requested quantity matches the standard reel specifications provided in the official documentation. Confirm compliance with RoHS directives and material declarations prior to final procurement authorization.
Selection Notes
Select this component when a 55.4666 MHz fundamental mode resonance is required in a compact SMT form factor. Evaluate the load capacitance requirements of the host oscillator circuit against the resonator's specified parameters. Ensure the operating temperature range aligns with the environmental conditions of the intended application system.
Part Context
This part belongs to the Mercury Electronics 18QHT series of surface mount crystal resonators. The series is characterized by its small outline dimensions and suitability for high-volume manufacturing environments. It serves as a critical timing element in modern electronic devices requiring precise frequency references.
Replacement Considerations
Consult official cross-reference lists from Mercury Electronics for verified substitute part numbers. Ensure any replacement maintains identical electrical specifications and mechanical footprint compatibility.
