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Product Detailed Parameters
- Description：1.618034 MHz XO 1.8V 2.0X1.6 OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：1.618034 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 18QHTF21-1.618034-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 1.618034 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes an enable/disable function for power management. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount assembly. The component supports an operating temperature range of -40°C to +85°C and maintains frequency stability within ±50ppm under specified conditions.
Feature Summary
- LVCMOS output interface
- Enable/Disable control functionality
- Surface-mount 4-SMD No Lead package
Applications
- General clock signal generation
- Embedded system timing references
- Consumer electronics circuit boards
Procurement Notes
Verify the specific frequency suffix matches the required 1.618034 MHz specification. Confirm the package type is 4-SMD No Lead. Ensure the supply voltage requirement aligns with 1.8V systems. Check that the operating temperature range covers the intended application environment. Validate the manufacturer part number against official Mercury Electronics documentation.
Selection Notes
Select this component when a precise 1.618034 MHz clock source is required for low-voltage digital circuits. Consider the LVCMOS output compatibility with downstream logic inputs. Evaluate the thermal performance requirements against the -40°C to +85°C rating. Assess the physical space constraints for the 4-SMD No Lead footprint.
Part Context
Mercury Electronics Ind. Co. Ltd specializes in frequency control products including quartz crystals and oscillators. This model belongs to their standard XO series, offering reliable timing solutions for various electronic applications. The company has a long history in the quartz industry, providing components for diverse market segments.
Replacement Considerations
Cross-reference other 18QHTF21 series variants from Mercury Electronics for different frequencies or voltage levels. Verify pinout and electrical characteristics before substituting with generic equivalents.
