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Product Detailed Parameters
- Description：10.0001 MHz XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：10.0001 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 18QHTF21-10.0001-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 10.0001 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby power-down function. It utilizes a 4-pad leadless surface-mount package measuring 2.0 x 1.6 mm with a height of 0.8 mm. Maximum supply current is specified at 22 mA.
Feature Summary
- Supports low-voltage operation at 1.8V for energy efficiency
- Includes standby mode to reduce power consumption during inactivity
- Provides standard LVCMOS output signal compatibility
Applications
- Battery-powered portable electronic devices
- General-purpose digital circuit clocking
- Embedded systems requiring low-power oscillators
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure the PCB footprint matches the 2.0 x 1.6 mm 4-pad leadless package dimensions precisely to avoid assembly issues.
Selection Notes
Select this component when a precise 10.0001 MHz clock source is required with minimal power draw. Consider the 1.8V operating voltage constraint and ensure compatibility with downstream logic levels. The compact 2.0 x 1.6 mm package is suitable for space-constrained designs, while the standby feature aids in extending battery life for portable applications.
Part Context
This part belongs to the QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a small form factor. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from continuously running variants in the same package family.
Replacement Considerations
Direct substitutes include other 10.0001 MHz LVCMOS oscillators in 2.0x1.6mm packages with 1.8V operation. Verify pinout compatibility, particularly the power-down control pin assignment, when replacing with components from different manufacturers.
