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Product Detailed Parameters
- Description：10.178 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：10.178 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)：22mA
- 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 18QHTF21-10.178-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 10.178 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 2.0 x 1.6 mm.
Feature Summary
- LVCMOS output logic compatibility
- Enable/Disable control capability
- Compact 4-SMD surface mount package
Applications
- High-performance digital circuits requiring precise timing
- Embedded systems utilizing low-voltage logic interfaces
- Portable electronic devices constrained by space and power
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 specifications to guarantee proper soldering and mechanical stability during assembly processes.
Selection Notes
Select this component when a low-profile, low-voltage oscillator with enable control is required. The 2.0x1.6mm size suits dense layouts. Verify compatibility with LVCMOS drivers. Consider thermal operating range limits for the intended environment. Ensure the manufacturing date code meets project longevity requirements.
Part Context
This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies within the standard XO category. These components are engineered for reliability in consumer and industrial electronics, providing stable clock signals for microprocessors and communication interfaces.
Replacement Considerations
Direct substitutes include other 10.178 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as jitter and phase noise. Alternative parts must support the same enable/disable function and physical dimensions for seamless integration.
