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Product Detailed Parameters
- Description：10.3681 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：10.3681 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 18QHTF21-10.3681-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.3681 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of an Enable/Disable control pin, allowing for power management flexibility in embedded systems. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained printed circuit board layouts.
Feature Summary
- LVCMOS output logic interface
- Integrated Enable/Disable functionality
- Compact 4-SMD surface-mount package
Applications
- Embedded system clock generation
- Digital signal processing timing references
- Microcontroller peripheral synchronization
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current documentation to ensure compatibility with required voltage and load conditions. Confirm that the 1.8V supply specification aligns with the target system design. Check for any recent revisions to the datasheet regarding thermal or electrical characteristics before finalizing procurement specifications.
Selection Notes
Select this component when a precise 10.3681 MHz reference is required for LVCMOS-compatible digital circuits. The integrated enable/disable feature makes it suitable for battery-powered devices requiring active power management. Ensure the PCB layout supports the small 2.0x1.6mm footprint and that the system provides a stable 1.8V rail.
Part Context
This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies within a consistent 4-SMD form factor. The 'OE' suffix typically denotes specific packaging or tape-and-reel configuration options provided by the manufacturer for automated assembly processes.
Replacement Considerations
Direct substitutes must match the 10.3681 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pinout compatibility and electrical parameters such as rise/fall times and duty cycle tolerance before swapping components.
