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Product Detailed Parameters
- Description：12.66 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：12.66 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 18QHTF21-12.660-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 12.66 MHz and utilizes an LVCMOS output interface. The device functions with a supply voltage of 1.8V and includes enable/disable control functionality. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm. The component is designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Supports enable and disable control for power management
- Utilizes LVCMOS output logic levels
- Compact 4-SMD no lead package design
Applications
- General electronics timing circuits
- Industrial application signal generation
Procurement Notes
Verify the specific frequency tolerance and operating temperature range against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 2.0x1.6 mm footprint matches the PCB layout requirements. Check RoHS compliance status if environmental regulations apply to the end product.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside a small form factor. The enable/disable feature makes it suitable for battery-powered devices needing power optimization. Consider the LVCMOS output compatibility with downstream digital logic. Evaluate the 12.66 MHz frequency against system clock requirements.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, a supplier specializing in quartz crystals and oscillators. The series offers various frequencies within a standardized 4-SMD no lead package. The manufacturer has experience in frequency control products since 1973, providing reliability in timing solutions.
Replacement Considerations
Direct substitutes include other 12.66 MHz XO variants from Mercury Electronics with identical 1.8V LVCMOS specifications and 4-SMD no lead packages. Cross-reference part numbers like 18QHTF21-12.660-PD if pinout or voltage differences are acceptable.
