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Product Detailed Parameters
- Description：71.901 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：71.901 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)：26mA
- 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 18QHTF21-71.901-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 71.901 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Integrates LVCMOS output logic for digital interface compatibility
- Features enable/disable pin for active power state control
- Utilizes surface-mount SMD package for automated assembly
Applications
- Digital signal processing circuits requiring precise clock timing
- Communication equipment utilizing standard frequency references
- Embedded systems with low-voltage logic requirements
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the 4-SMD footprint matches the PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge sensitivity during installation.
Selection Notes
Select this component when a stable 71.901 MHz reference is required for LVCMOS-compatible digital interfaces. Consider the 1.8V operating voltage as a primary constraint for power budgeting. Evaluate the physical size of the 2.0x1.6mm package against available board space. Verify that the enable/disable functionality meets system power management strategies.
Part Context
This oscillator belongs to the Mercury Electronics 18QHTF21 series, which offers various standard frequencies in a small form factor. The series is designed for applications needing reliable clock sources in consumer and industrial electronics. Mercury Electronics leverages decades of quartz crystal manufacturing expertise to produce these components.
Replacement Considerations
Direct replacements must match the 71.901 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Cross-reference with other manufacturers offering similar XO specifications. Ensure electrical parameters such as phase noise and jitter meet original design requirements.
