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Product Detailed Parameters
- Description：108.0791 MHz XO 1.8V 2.0X1.6 OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：108.0791 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)：28mA
- 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 18QHTF21-108.0791-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 108.0791 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes enable/disable functionality for power management
- Designed as a standard crystal oscillator with precise frequency stability
Applications
- General-purpose clock signal generation
- Digital circuit timing references
- Embedded system clock sources
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable/disable pin configuration matches your control logic to ensure proper operation during standby or active modes.
Selection Notes
Select this component when a stable 108.0791 MHz clock source is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage and the need for an enable/disable feature. The 4-SMD no-lead package is suitable for space-constrained designs requiring surface-mount technology integration.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. Mercury Electronic has been manufacturing frequency control products since 1973 and is recognized as a pioneer in Taiwan's crystal industry. The company produces various timing components including TCXOs and VCTCXOs.
Replacement Considerations
Direct substitutes within the same series include other frequencies such as 18QHTF21-4.31818-OE, 18QHTF21-13.1313-OE, 18QHTF21-30.0075-OE, and 18QHTF21-8.300-OE. These share the same package and electrical characteristics but differ in operating frequency.
