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Product Detailed Parameters
- Description：86.638 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：86.638 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)：26mA
- 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 18QHTF21-86.638-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 86.638 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Provides stable clock signals via LVCMOS interface
- Supports low-power operation with standby capability
- Designed for surface-mount integration
Applications
- Digital signal processing systems
- Communication equipment timing
- Embedded control circuits
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package dimensions match the PCB footprint specifications to guarantee proper assembly and electrical connectivity.
Selection Notes
Select this component when a precise 86.638 MHz clock source is required for LVCMOS-compatible digital circuits. Consider the 1.8V operating voltage and standby feature for power-sensitive designs. Evaluate the thermal and mechanical constraints of the 4-SMD package within the application environment to ensure reliable long-term performance.
Part Context
Mercury Electronics specializes in quartz crystals and oscillators, offering frequency control solutions since 1973. The 18QHTF21 series represents their standard XO lineup, providing reliable timing for various electronic applications. This manufacturer is recognized as a pioneer in Taiwan's crystal industry, focusing on high-quality frequency control products.
Replacement Considerations
Cross-reference with other 86.638 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify pinout compatibility and voltage levels before substitution. Check datasheets for equivalent performance metrics regarding stability and phase noise.
