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Product Detailed Parameters
- Description：10.475 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：10.475 MHz
- Function：Enable/Disable
- 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)：22mA
- 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 18QHTF21-10.475-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.475 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.
Feature Summary
- Integrates LVCMOS output logic for digital interface compatibility
- Features 1.8V supply voltage with enable/disable control capability
- Utilizes a compact 4-SMD no-lead surface mount package
Applications
- General clock signal generation in embedded systems
- Timing reference for low-voltage digital circuits
- Space-constrained electronic designs requiring surface-mount oscillators
Procurement Notes
Verify the specific frequency tolerance and phase noise specifications against the official datasheet before integration. Confirm that the 1.8V operating voltage aligns with the target system's power rails. Ensure the 4-SMD package footprint matches the PCB layout design to prevent assembly issues.
Selection Notes
Select this component when a precise 10.475 MHz timing source is required for LVCMOS-compatible logic families. The integrated enable pin allows for dynamic power management in battery-operated devices. Consider the small form factor for high-density board layouts where space is limited.
Part Context
This part belongs to the Mercury Electronics XO series, which provides stable quartz-based timing solutions. The manufacturer specializes in frequency control products including crystals and oscillators. This specific model represents a standard configuration within their portfolio of surface-mount timing devices.
Replacement Considerations
Cross-reference with other 10.475 MHz LVCMOS oscillators in 4-SMD packages. Verify electrical compatibility regarding supply voltage and output drive strength. Check mechanical dimensions to ensure fit within the existing enclosure or PCB constraints.
