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Product Detailed Parameters
- Description：124.342857 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：124.342857 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 18QHTF21-124.342857-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 124.342857 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range from -40°C to 85°C and maintains a frequency stability of ±50ppm across this range.
Feature Summary
- Features LVCMOS output logic for digital interface compatibility
- Includes hardware enable and disable control functionality
- Operates reliably within industrial temperature ranges
Applications
- Industrial equipment requiring precise clock signals
- Data communication systems utilizing standard frequencies
- Embedded electronics requiring low-voltage operation
Procurement Notes
Verify the specific part number suffix against official Mercury Electronics documentation to confirm exact specifications. Ensure that the required frequency tolerance and operating temperature range align with your system design requirements before procurement. Confirm package type and pinout compatibility with your PCB layout.
Selection Notes
Select this component when a 124.342857 MHz clock source is required for LVCMOS-compatible circuits. Consider the 1.8V supply requirement and the need for enable/disable control features. Evaluate the ±50ppm stability against your system's timing constraints and ensure the 4-SMD footprint fits your assembly process.
Part Context
This oscillator belongs to the Mercury Electronics XO series, designed for surface-mount applications. The manufacturer specializes in quartz-based frequency control products. This specific model provides a stable reference clock for digital logic, distinguishing it from differential oscillators or raw crystal components within the broader product catalog.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility carefully if considering alternatives from other manufacturers, as frequency accuracy and package dimensions may differ.
