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Product Detailed Parameters
- Description：12.7281 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：12.7281 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 18QHTF21-12.7281-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.7281 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes enable/disable functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.
Feature Summary
- Supports LVCMOS output logic for digital interfacing
- Features enable and disable control capability
- Utilizes a small surface-mount package design
Applications
- General clock signal generation
- Digital system timing references
- Embedded electronics applications
Procurement Notes
Verify the specific part number against official manufacturer documentation to ensure compatibility with system requirements. Confirm that the 1.8V supply voltage and LVCMOS output levels align with the target circuit design. Check for any specific handling or storage instructions provided in the datasheet to maintain component integrity during assembly.
Selection Notes
Select this component when a low-voltage, small-form-factor clock source is required. Ensure the operating temperature range meets the environmental conditions of the application. Verify that the LVCMOS output drive strength is sufficient for the connected load without requiring additional buffering stages.
Part Context
This model belongs to the 18QHTF21 series of oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6mm footprint. These components are part of Mercury's broader portfolio of quartz-based frequency control products, which includes crystals and other oscillator types.
Replacement Considerations
Direct substitutes may include other 12.7281 MHz LVCMOS oscillators in a 4-SMD No Lead package with 1.8V operation. Verify pinout compatibility and electrical specifications before substitution. Consult the manufacturer for recommended alternatives if this specific part is unavailable.
