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Product Detailed Parameters
- Description：8.05 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：8.05 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)：21mA
- 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 18QHTF21-8.050-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 8.050 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes enable/disable functionality. 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 suitable for general electronic applications.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable and disable control functionality
- Compact 4-SMD no-lead surface mount package
Applications
- General clock signal generation in embedded systems
- Timing reference for microcontrollers and processors
- Digital communication interface synchronization
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 power rails. Ensure the 4-SMD no-lead footprint matches the PCB land pattern to guarantee proper soldering and mechanical stability during assembly processes.
Selection Notes
Select this component when a low-profile, 1.8V compatible clock source is required for space-constrained designs. The LVCMOS output ensures direct interfacing with standard digital logic families without additional level shifting. Consider the enable pin utility for power management strategies in battery-operated devices requiring periodic clock activation.
Part Context
This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within the same physical footprint, allowing for design flexibility. The 'OE' suffix typically denotes the enable feature, distinguishing it from continuous-output variants within the same product line.
Replacement Considerations
Direct replacements must match the 8.050 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent electrical specifications such as phase noise and stability if available in alternative manufacturer datasheets.
