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Product Detailed Parameters
- Description：11.985 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：11.985 MHz
- Function：Standby (Power Down)
- 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 18QHTF21-11.985-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a frequency of 11.985 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features a power-down function for standby mode. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The component ensures frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C. Maximum supply current is specified at 22mA.
Feature Summary
- Integrates LVCMOS output logic for digital interface compatibility
- Includes power-down capability to reduce consumption during standby
- Designed for surface mount assembly in space-constrained layouts
Applications
- General purpose clock signal generation
- Embedded system timing references
- Consumer electronics internal clocks
Procurement Notes
Verify the specific frequency suffix matches the required 11.985 MHz specification. Confirm the package type corresponds to the 4-SMD no lead configuration. Ensure the supply voltage requirement aligns with the 1.8V operational limit. Check that the temperature range meets the environmental conditions of the target application.
Selection Notes
Select this component when a low-profile surface mount oscillator is required. Consider the LVCMOS output for direct logic interfacing. Evaluate the 1.8V supply constraint against the system power budget. Assess the ±50ppm stability requirement against the system timing tolerance needs.
Part Context
This part belongs to the Mercury 18QHTF21 series of surface mount crystal oscillators. The series offers various frequencies and package options. Mercury Electronic specializes in quartz crystals and timing devices. The product line targets applications requiring reliable frequency control in compact form factors.
Replacement Considerations
Direct substitutes include other 11.985 MHz LVCMOS oscillators in 4-SMD packages. Verify pinout compatibility and voltage levels before substitution. Cross-reference stability and temperature ranges for equivalent performance.
