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Product Detailed Parameters
- Description：116.444444 M XO 1.8V 2.0X1.6 OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：116.444444 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 18QHTF21-116.444444-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a frequency of 116.444444 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features enable/disable control functionality. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals in electronic circuits.
Feature Summary
- LVCMOS output interface for digital compatibility
- Integrated enable and disable control capability
- Compact 4-SMD no-lead surface mount package
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the exact frequency tolerance and load capacitance requirements against the specific application design before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD package footprint matches the PCB layout constraints. Cross-reference the manufacturer datasheet for thermal and electrical specifications to guarantee reliable operation within the intended environment.
Selection Notes
Select this component when a precise 116.444444 MHz reference is required with low-voltage LVCMOS compatibility. The integrated enable feature allows for power management in battery-operated or standby-sensitive designs. Consider the small form factor for space-constrained layouts. Verify that the operating temperature range meets the environmental conditions of the final assembly.
Part Context
This part belongs to Mercury Electronic's series of standard XO oscillators. The brand has extensive experience in quartz crystal manufacturing. The product line includes various frequencies and packages. This specific model utilizes modern surface-mount technology for automated assembly.
Replacement Considerations
Direct substitutes must match the 116.444444 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical. Consult official cross-reference lists from Mercury Electronic for validated alternatives.
