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Product Detailed Parameters
- Description：12.375 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：12.375 MHz
- Function：Standby (Power Down)
- 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 18QHTF21-12.375-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 12.375 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features a standby mode for power down capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes standby functionality to reduce power consumption during idle states
- Utilizes a leadless SMD package for automated surface-mount assembly
Applications
- Digital signal processing systems requiring precise timing references
- Communication equipment utilizing standard clock frequencies
- Embedded control units needing low-power oscillation modes
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 PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to prevent mounting issues.
Selection Notes
Select this component when a fixed 12.375 MHz frequency is required with LVCMOS outputs. Consider the 1.8V operating voltage constraint for compatibility with low-voltage logic families. Evaluate the need for standby power-down features if energy efficiency is critical for the application environment.
Part Context
This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various standard frequencies with consistent packaging and electrical characteristics. The 'PD' suffix indicates the inclusion of a power-down or standby pin configuration within the package.
Replacement Considerations
Direct substitutes must match the 12.375 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal specifications before replacing.
