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Product Detailed Parameters
- Description：10.519 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：10.519 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 18QHTF21-10.519-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.519 MHz and requires a 1.8V supply voltage. The device utilizes LVCMOS output logic and includes an Enable/Disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.
Feature Summary
- LVCMOS output logic interface
- Integrated Enable/Disable functionality
- Compact 4-SMD No Lead surface mount package
Applications
- General clock signal generation
- Embedded system timing references
- Portable electronic devices requiring low voltage operation
Procurement Notes
Verify the specific frequency tolerance and stability specifications against the official datasheet before integration. Confirm that the 1.8V supply requirement aligns with the target circuit design. Ensure the 4-SMD No Lead footprint matches the PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.
Selection Notes
Select this component when a precise 10.519 MHz reference is required in space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. The enable/disable feature allows for dynamic power savings in battery-operated applications. Consider the small form factor for high-density board layouts.
Part Context
This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies within a consistent 2.0x1.6 mm package. These components are designed for general-purpose timing applications where size and low voltage are critical factors.
Replacement Considerations
Direct substitutes include other 18QHTF21 variants with different frequencies, such as 18QHTF21-10.180-OE or 18QHTF21-13.1313-OE, provided the frequency difference is acceptable. Cross-brand replacements must match the 1.8V supply, LVCMOS output, and 4-SMD No Lead package dimensions.
