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Product Detailed Parameters
- Description：13.5305 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：13.5305 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)：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 18QHTF21-13.5305-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 13.5305 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features an enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained surface-mount designs.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable/disable functionality for power optimization
- Compact 4-SMD no-lead surface mount package design
Applications
- Communications equipment requiring precise timing
- Digital signal processing circuits
- Embedded systems with low-voltage requirements
Procurement Notes
Verify the specific suffix against official Mercury Electronics documentation to confirm exact electrical characteristics and packaging variations. Ensure the ordering part number matches the required frequency tolerance and load capacitance specifications for the target application. Cross-reference datasheets for temperature range and aging rate requirements before finalizing procurement orders.
Selection Notes
Select this component when a 1.8V supply voltage and LVCMOS output are mandatory for the system architecture. The 2.0x1.6mm footprint requires careful consideration of PCB layout constraints and thermal dissipation needs. Evaluate the enable/disable feature necessity for power-sensitive designs compared to continuous-operation oscillators.
Part Context
This model belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequency options within a consistent small outline package format. The 'OE' suffix typically denotes specific packaging or tape-and-reel configurations as defined by the manufacturer's catalog standards.
Replacement Considerations
Direct substitutes must match the 13.5305 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm footprint. Verify pinout compatibility and electrical parameters such as phase noise and jitter against original specifications before implementing any alternative components.
