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Product Detailed Parameters
- Description：13.553 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：13.553 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 18QHTF21-13.553-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 13.553 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down mode for standby functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.
Feature Summary
- Supports low-voltage operation at 1.8V
- Includes power-down capability for energy efficiency
- Provides LVCMOS output signal compatibility
Applications
- Embedded systems requiring precise clock signals
- Portable electronic devices utilizing low-power components
- Communication modules needing stable frequency references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail is stable to maintain oscillator performance. Confirm that the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge during assembly.
Selection Notes
Select this component when a small form factor is required alongside low voltage operation. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the power-down feature if battery life or thermal management is a critical design constraint. Verify that the operating temperature range meets the environmental conditions of the intended application.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 2.0x1.6mm SMD package. The series is characterized by its use of LVCMOS outputs and support for standby modes. Mercury Electronics has a long history in quartz crystal manufacturing, providing reliable frequency control solutions.
Replacement Considerations
Direct substitutes include other 18QHTF21 variants with different frequencies such as 18QHTF21-13.553-PD equivalents from the same manufacturer. Cross-referencing with other manufacturers requires matching the 1.8V supply, LVCMOS output, and 4-SMD package dimensions precisely.
