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Product Detailed Parameters
- Description：6.5 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：6.5 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)：21mA
- 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 18QHTF21-6.500-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 6.5 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down standby function to reduce consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Supports low-voltage operation at 1.8V
- Includes power-down control functionality
- Utilizes LVCMOS output interface
Applications
- Portable electronic devices
- Battery-powered systems
- General-purpose timing circuits
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific manufacturing date codes or lot traceability requirements if applicable to your quality standards.
Selection Notes
Select this component when a low-profile, surface-mount oscillator is required for 1.8V logic interfaces. Consider the 2.0x1.6mm package size for space-constrained designs. Evaluate the need for power-down capabilities to manage energy efficiency in portable applications. Compare alternative frequencies within the same series if 6.5MHz does not meet the exact clocking requirement.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based timing solutions. The manufacturer has produced frequency control products since 1973. This series typically offers standard XO options with various voltage levels and package sizes, catering to diverse consumer and industrial electronics needs.
Replacement Considerations
Check for direct substitutes such as 18QHTF21-6.000-PD or 18QHTF21-50.630-PD if different frequencies are acceptable. Verify pin compatibility and electrical specifications before swapping.
