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Product Detailed Parameters
- Description：7.045 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：7.045 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 18QHTF21-7.045-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 7.045 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V and features an Enable/Disable control function to manage power states. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output interface for digital logic compatibility
- Enable/Disable control functionality for power management
- Compact 4-SMD no-lead surface mount package
Applications
- General purpose clock signal generation
- Digital system timing references
- Embedded controller clock sources
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct enable/disable functionality and voltage specifications. Confirm package dimensions and pinout compatibility with the target PCB footprint prior to integration. Cross-reference the part number with official Mercury Electronics documentation to validate availability and revision status.
Selection Notes
Select this component when a low-voltage 1.8V supply is required alongside precise frequency stability. The enable/disable feature supports systems needing active power management. Ensure the application environment accommodates the standard XO performance characteristics and the physical constraints of the 4-SMD package form factor.
Part Context
This model belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The -OE suffix typically denotes specific operational parameters or packaging variations within the product line, distinguishing it from other variants like -PD which may indicate standby capabilities.
Replacement Considerations
Direct substitutes include other 1.8V LVCMOS oscillators with similar frequency and package dimensions. Verify electrical compatibility and pinout alignment before swapping. Consult Mercury Electronics for officially recommended cross-references to ensure performance parity.
