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Product Detailed Parameters
- Description：10.00001 MHz XO 1.8V 2.0X1.6 PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：10.00001 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 18QHTF21-10.00001-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 10 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down function via a Standby pin. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Supports Low Voltage CMOS (LVCMOS) output logic levels
- Includes a Standby pin for power-down control functionality
- Utilizes a surface-mount 4-SMD no-lead package design
Applications
- Battery-powered portable electronic devices
- General-purpose digital timing circuits
- Communication equipment requiring precise clock signals
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the PCB footprint matches the 2.0mm x 1.6mm SMD package dimensions to guarantee proper assembly and electrical connectivity.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside a compact form factor. The integrated power-down feature makes it suitable for applications needing energy management. Ensure the application does not require spread spectrum or higher voltage outputs, as this model is specified for standard LVCMOS operation.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-profile surface-mount oscillators. The series typically offers various frequencies within a small 2.0x1.6mm footprint. The 'PD' suffix indicates the inclusion of a power-down capability, distinguishing it from standard continuous-operation models in the same family.
Replacement Considerations
Direct substitutes include other 10MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation and standby pins. Verify pin compatibility and thermal characteristics when cross-referencing with competitors. Ensure the replacement maintains the same frequency stability and phase noise specifications if used in sensitive timing applications.
