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Product Detailed Parameters
- Description：1.1 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：1.1 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 18QHTF21-1.100-OE is a 1.1 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features an enable/disable function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. Frequency stability is rated at ±50ppm, and it supports an operating temperature range of -40°C to 85°C.
Feature Summary
- Integrated enable/disable control for efficient power management
- Compact 4-SMD no-lead surface mount package design
- LVCMOS output interface compatible with standard digital logic
Applications
- Portable electronic devices requiring low power consumption
- Embedded systems utilizing 1.8V logic levels
- Consumer electronics with space-constrained PCB layouts
Procurement Notes
Verify the specific suffix 'OE' confirms the enable pin functionality and LVCMOS output type. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm the 4-SMD no-lead footprint matches your board design constraints before ordering.
Selection Notes
Select this component when a 1.1 MHz clock signal is required with strict size limitations. The enable feature is critical for battery-operated applications needing active standby modes. Verify that the ±50ppm stability meets the timing requirements of the target microcontroller or communication interface.
Part Context
This part belongs to Mercury Electronics' 18QHTF series of high-frequency oscillators. The series focuses on small form factors suitable for modern portable electronics. Mercury Electronics is a Taiwan-based manufacturer specializing in quartz crystals and timing components since 1973.
Replacement Considerations
Check for other variants in the 18QHTF21 series with different frequencies but identical packages. Ensure substitute parts support the same 1.8V supply and LVCMOS output characteristics. Verify thermal and electrical compatibility if replacing with direct equivalents.
