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Product Detailed Parameters
- Description：6.1448 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：6.1448 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)：21mA
- 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 18QHTF21-6.1448-OE is a standard LVCMOS crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 6.1448 MHz with a supply voltage of 1.8V. The device features enable and disable functionality for power management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm. The unit supports an operating temperature range of -40°C to 85°C and maintains a frequency stability of ±50ppm.
Feature Summary
- Standard LVCMOS output interface
- Integrated enable and disable control
- Compact 2.0x1.6 mm surface mount package
Applications
- Portable electronic devices requiring low power consumption
- Embedded systems utilizing 1.8V logic levels
- Timing reference sources for digital circuits
Procurement Notes
Verify the specific suffix (OE) against official Mercury United Electronics documentation to confirm pinout and electrical characteristics. Ensure the required frequency tolerance and temperature range align with system specifications. Cross-reference the package outline drawing to confirm mechanical fit within the target PCB layout before finalizing procurement orders.
Selection Notes
Select this component when a 1.8V supply and LVCMOS compatibility are required. The enable/disable feature makes it suitable for battery-powered applications where power conservation is critical. Verify that the ±50ppm stability meets the timing requirements of the connected microcontroller or communication interface.
Part Context
This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and packages. The OE suffix typically denotes specific packaging or tape-and-reel configurations. This model represents a standard fixed-frequency solution for general-purpose timing needs.
Replacement Considerations
Direct substitutes must match the 1.8V supply, LVCMOS output, and 2.0x1.6mm footprint. Check equivalent models from other manufacturers offering similar enable/disable functionality. Ensure frequency stability and temperature ranges are compatible with the original design constraints.
