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Product Detailed Parameters
- Description：81.44 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：81.44 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)：26mA
- 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 18QHTF21-81.440-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 81.44 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package. The component is designed for operation within a temperature range of -40°C to 85°C.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes enable/disable control functionality for power management
- Operates on a 1.8V supply voltage
Applications
- Digital signal processing systems
- Communication equipment requiring precise clocking
- Embedded systems with low voltage requirements
Procurement Notes
Verify the specific suffix 'OE' against official Mercury Electronics documentation to confirm the enable/disable feature and packaging type. Ensure the operating temperature range meets the application's environmental requirements. Cross-reference the part number with the manufacturer's current active status list to avoid obsolete components.
Selection Notes
Select this component when a low-profile surface-mount oscillator with enable control is required. The 1.8V supply voltage makes it suitable for modern low-power digital circuits. Consider the 4-SMD no-lead package for space-constrained PCB layouts. Verify frequency stability requirements against the ±50ppm specification found in similar series parts if not explicitly stated for this variant.
Part Context
This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The 'OE' suffix likely denotes specific operational features or packaging variations compared to other suffixes like 'PD'. Mercury Electronics is a established manufacturer of frequency control products.
Replacement Considerations
Check for direct substitutes within the 18QHTF21 series with matching frequency and package. Verify pinout compatibility and electrical specifications before substitution. Consult Mercury Electronics for recommended alternatives if this specific part is discontinued.
