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Product Detailed Parameters
- Description：111.15412 M XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：111.15412 MHz
- Function：Standby (Power Down)
- 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 18QHTF21-111.15412-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 111.15412 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down (standby) function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6mm.
Feature Summary
- Supports low-voltage operation at 1.8V
- Includes standby mode via power-down control
- Utilizes LVCMOS output interface
Applications
- High-speed digital signal processing systems
- Communication equipment requiring precise clocking
- Embedded systems with space constraints
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target system design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly.
Selection Notes
Select this component when a 111.15412 MHz clock source is required in a minimal footprint. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. Consider the power-down feature if system energy efficiency is a priority. Compare against other models in the 18QHTF series for alternative frequencies or package sizes if the current specifications do not fully align with the application needs.
Part Context
This part belongs to the 18QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and package sizes, including 3.2x2.5mm variants like the 18QHTF32 model. These components are designed for applications demanding reliable timing signals in compact electronic devices.
Replacement Considerations
Direct substitutes include other 111.15412 MHz oscillators with identical 1.8V LVCMOS outputs and 2.0x1.6mm packages. Verify pin compatibility and electrical characteristics before swapping. Models such as those from different manufacturers offering similar form factors may require schematic review.
