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Product Detailed Parameters
- Description：50.0567 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：50.0567 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)：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 18QHTF21-50.0567-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 50.0567 MHz and utilizes LVCMOS output logic. The component requires a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes hardware enable and disable control functionality
- Utilizes a leadless SMD package for space-constrained designs
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific frequency suffix matches the required 50.0567 MHz specification. Confirm the 1.8V operating voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint is compatible with the PCB layout. Check for any specific handling requirements associated with leadless components during assembly.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside LVCMOS outputs. The enable/disable feature allows for power management in battery-operated devices. The leadless package offers advantages in high-density board layouts compared to traditional leaded packages.
Part Context
This part belongs to the Mercury Electronics 18QHTF21 series of standard oscillators. The series typically includes various frequencies such as 50.256 MHz and 96.768 MHz. All variants share similar electrical characteristics including 1.8V supply and LVCMOS outputs, differing primarily in frequency and package dimensions.
Replacement Considerations
Direct substitutes include other 18QHTF21 series parts from Mercury Electronics with matching frequencies. Cross-manufacturer replacements must match the 1.8V supply, LVCMOS output, and 4-SMD no-lead footprint. Verify pinout compatibility before substitution.
