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Product Detailed Parameters
- Description：122.55 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：122.55 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 18QHTF21-122.550-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 122.55 MHz and utilizes LVCMOS output levels. 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 with dimensions of 2.0x1.6 mm.
Feature Summary
- Supports enable and disable functionality for power management
- Utilizes LVCMOS output signal levels
- Designed in a compact surface-mount package
Applications
- General clock generation for electronic circuits
- Data communication systems requiring precise timing
- Embedded systems utilizing low-voltage logic interfaces
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Cross-reference the OE suffix to confirm any specific ordering or testing variations defined by the manufacturer.
Selection Notes
Select this component when a 122.55 MHz clock source is required within a low-voltage 1.8V environment. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the small 2.0x1.6 mm footprint if board space is limited. The enable pin allows for dynamic power control, which is beneficial for battery-operated or energy-efficient designs.
Part Context
This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options in a consistent small outline package. The 'OE' suffix may indicate specific ordering or end-of-line status details as per distributor listings.
Replacement Considerations
Direct substitutes must match the 122.55 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications before substitution.
