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Product Detailed Parameters
- Description：12.4416 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：12.4416 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 18QHTF21-12.4416-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 12.4416 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable function for power management. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount applications.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes enable/disable control functionality
- Operates on a 1.8V supply voltage
Applications
- General clock signal generation
- Digital circuit timing reference
- Embedded system synchronization
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operational needs. Confirm that the 4-SMD package footprint aligns with your PCB layout constraints to ensure proper assembly and reliability.
Selection Notes
Select this component when a low-voltage, surface-mount oscillator with enable capabilities is required. Consider the 1.8V supply constraint and LVCMOS output compatibility with downstream logic. Evaluate the thermal performance and stability requirements relative to the standard XO classification for the target application environment.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd., which offers various frequencies within the same package form factor. The series provides standard crystal oscillators designed for cost-effective timing solutions in consumer and industrial electronics, maintaining consistent physical dimensions across different frequency options.
Replacement Considerations
Direct substitutes must match the 12.4416 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as current consumption and startup time. Cross-reference with other manufacturers offering equivalent surface-mount oscillators if Mercury parts are unavailable.
