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Product Detailed Parameters
- Description：49.3667 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：49.3667 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)：23mA
- 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 18QHTF21-49.3667-OE is a standard quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.3667 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.
Feature Summary
- LVCMOS output logic compatibility
- Integrated enable and disable functionality
- Compact 4-SMD no lead surface mount package
Applications
- High-performance digital systems requiring precise timing
- Communication equipment clock generation
- Data processing circuitry synchronization
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your power architecture. Ensure the 4-SMD footprint matches your PCB layout constraints. Cross-reference the OE suffix with manufacturer documentation to confirm any specific ordering or packaging variations.
Selection Notes
Select this component when a stable 49.3667 MHz reference is required for LVCMOS-compatible circuits. Consider the low profile of the 4-SMD package for space-constrained designs. Evaluate the enable/disable feature if power management during idle states is necessary. Verify operating temperature ranges meet environmental specifications.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronics, designed for general-purpose timing applications. The series offers various frequencies within a standardized small outline package. It serves as a replacement for larger through-hole oscillators where board space is limited.
Replacement Considerations
Direct substitutes include other 49.3667 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Ensure pinout compatibility and voltage levels match. Verify frequency stability and phase noise specifications are equivalent or superior to maintain system performance.
