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Product Detailed Parameters
- Description：12.6 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：12.6 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 18QHTF21-12.600-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 12.6 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.
Feature Summary
- Integrates LVCMOS output logic for digital interface compatibility
- Includes hardware enable/disable functionality for power management
- Utilizes a leadless SMD package for automated assembly
Applications
- Digital signal processing circuits
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific part number suffix against official manufacturer documentation to confirm electrical characteristics and pinout configuration. Ensure that the selected variant matches the required operating temperature range and supply voltage specifications for the target application environment before finalizing procurement orders.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside precise 12.6 MHz timing. The integrated enable pin allows for dynamic power control. Confirm that the 4-SMD no-lead footprint aligns with the PCB layout constraints and that the LVCMOS output swing meets the input requirements of the downstream logic devices.
Part Context
This model belongs to the Mercury Electronics XO series, which provides standard frequency generation solutions. The manufacturer specializes in quartz crystal products, leveraging decades of experience in frequency control components. This specific unit represents a surface-mount option within their broader portfolio of oscillators and resonators.
Replacement Considerations
Direct substitutes must match the 12.6 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pin-to-pin compatibility and electrical parameters with alternative manufacturers before integration.
