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Product Detailed Parameters
- Description：49.125 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：49.125 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)：23mA
- 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 18QHTF21-49.125-PD is a standard frequency crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 49.125 MHz and utilizes LVCMOS output logic. The device is designed for surface-mount applications, featuring a compact 4-SMD, No Lead package configuration. It functions with a supply voltage of 1.8V and includes a standby or power-down capability to manage energy consumption during idle periods. This component serves as a precise timing source for digital circuits requiring stable clock signals.
Feature Summary
- Generates a stable 49.125 MHz clock signal using LVCMOS output interface
- Supports low-power operation through integrated standby and power-down modes
- Utilizes a compact 4-SMD no-lead surface-mount package design
Applications
- Digital circuit timing reference
- Embedded system clock generation
- Communication module synchronization
Procurement Notes
Verify the exact part number against official manufacturer documentation to ensure compatibility with specific voltage and load requirements. Confirm that the 1.8V supply specification aligns with your system design. Check for any specific handling instructions related to the surface-mount package type during assembly processes.
Selection Notes
Select this component when a 49.125 MHz frequency is required with LVCMOS outputs. Ensure the 1.8V operating voltage matches the target system's power rails. Consider the 4-SMD package size for PCB layout constraints. Verify that the standby feature meets power management needs.
Part Context
This model belongs to the Mercury Electronics series of standard crystal oscillators. These devices are engineered for reliable frequency control in electronic systems. The product line emphasizes compact form factors and low power consumption suitable for modern portable and industrial electronics.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided data. Consult the manufacturer for direct equivalents.
