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Product Detailed Parameters
- Description：12.1 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：12.1 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 18QHTF21-12.100-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 12.1 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable and disable control functionality
- Compact 4-SMD no-lead surface mount package
Applications
- General clock signal generation in electronic circuits
- Timing reference for low-voltage digital systems
- Embedded system clock sources
Procurement Notes
Verify the specific manufacturer part number against official Mercury Electronics documentation to ensure authenticity. Confirm that the required operating temperature range and load conditions match your design specifications. Check for any specific handling requirements associated with the small form factor package during assembly.
Selection Notes
Select this component when a precise 12.1 MHz timing source is required for low-voltage applications. The 1.8V supply requirement makes it suitable for modern portable or energy-efficient designs. Ensure the PCB layout accommodates the 2.0x1.6 mm footprint and provides adequate thermal relief for the SMD package.
Part Context
This oscillator belongs to the Mercury Electronics XO series, which focuses on providing reliable frequency control solutions. The company has extensive experience in quartz crystal manufacturing, offering various frequency control products including TCXOs and VCXOs. This specific model represents their standard crystal oscillator line designed for general-purpose timing needs.
Replacement Considerations
Compatible alternatives include other 12.1 MHz LVCMOS oscillators in similar 4-SMD packages from different manufacturers. Verify pinout compatibility and electrical parameters such as supply voltage and current consumption before substitution. Ensure the replacement part meets the same size constraints for board space limitations.
