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Product Detailed Parameters
- Description：1.0486 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：1.0486 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 18QHTF21-1.0486-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.0486 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The component supports an operating temperature range of -40°C to 85°C and offers frequency stability of ±50ppm.
Feature Summary
- LVCMOS output logic compatible with low-voltage digital systems
- Integrated enable/disable control for efficient power management
- Compact 4-SMD no-lead surface mount package design
Applications
- Low-frequency clock generation in portable electronics
- Timing reference for microcontroller systems
- Battery-powered devices requiring power-down capabilities
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout specifications. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.
Selection Notes
Select this component when a precise 1.0486 MHz timing source is required for LVCMOS interfaces. Consider the ±50ppm stability for applications where moderate frequency accuracy is sufficient. The enable/disable feature makes it suitable for systems needing active power states. Evaluate the small form factor against available board space constraints.
Part Context
Mercury Electronics Ind. Co. Ltd is a Taiwan-based manufacturer specializing in frequency control products, including quartz crystals and oscillators. This part belongs to their XO series, designed for standard timing applications. The company has a long history in the quartz industry, providing components for various electronic sectors requiring reliable timing solutions.
Replacement Considerations
Direct substitutes must match the 1.0486 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar low-profile oscillators with enable functions.
