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Product Detailed Parameters
- Description：13.515 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：13.515 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 18QHTF21-13.515-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 13.515 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a power-down capability, allowing the unit to enter a standby mode to reduce current consumption when not in active use. The component is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly processes.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes power-down functionality for energy efficiency
- Operates on a single 1.8V supply voltage
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the specified operating range. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to prevent soldering issues during assembly.
Selection Notes
Select this component when a precise 13.515 MHz reference is required in space-constrained designs. Consider the 1.8V operation if the target system uses low-voltage logic families. The power-down feature makes it suitable for battery-operated devices where standby current reduction is critical for extending operational life.
Part Context
This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies and packaging options. Mercury is a specialized manufacturer of quartz crystals and timing components, providing solutions for consumer electronics and industrial applications.
Replacement Considerations
Direct substitutes must match the 13.515 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics before swapping.
