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Product Detailed Parameters
- Description：12.92 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：12.92 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 18QHTF21-12.920-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.92 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes power-down capability to reduce consumption during standby
- Designed for low-voltage operation at 1.8V
Applications
- Battery-powered portable devices requiring low current consumption
- Digital communication systems utilizing LVCMOS interfaces
- Compact electronic circuits needing precise clock signals
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail is stable and within the specified operating range. Confirm that the PCB footprint matches the 4-SMD No Lead package dimensions of 2.0x1.6 mm. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.
Selection Notes
Select this component when a 12.92 MHz clock signal is required with LVCMOS outputs. Consider the 1.8V supply constraint and the need for power-down functionality. Evaluate the physical space constraints to ensure the 2.0x1.6 mm package fits the design. Compare performance metrics such as phase noise and stability if available in official documentation.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a small SMD package. The series is designed for applications requiring reliable clock sources in consumer electronics and industrial equipment. Mercury Electronics has a long history in quartz crystal manufacturing, providing frequency control solutions.
Replacement Considerations
Direct substitutes may include other 12.92 MHz LVCMOS oscillators in a 2.0x1.6mm 4-SMD package with 1.8V operation. Verify pinout compatibility and electrical specifications carefully. Cross-reference with similar models from Mercury Electronics or other manufacturers offering equivalent form factors and electrical characteristics.
