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Product Detailed Parameters
- Description：87.351542 M XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：87.351542 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)：26mA
- 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 18QHTF21-87.351542-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 87.351542 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD package with no lead configuration, suitable for surface-mount applications.
Feature Summary
- Supports enable and disable functionality for power management
- Delivers LVCMOS output signals
- Operates on a 1.8V supply voltage
Applications
- General digital clock generation
- Embedded system timing references
- Consumer electronics signal processing
Procurement Notes
Verify the specific suffix 'PD' against official Mercury Electronics documentation to confirm it denotes the correct tape-and-reel packaging or variant designation. Ensure the part number matches the exact frequency specification of 87.351542 MHz. Cross-reference the 4-SMD package dimensions with your PCB footprint requirements. Confirm that the LVCMOS output voltage levels are compatible with your target logic family before finalizing procurement.
Selection Notes
Select this component when a precise 87.351542 MHz clock source is required for low-voltage digital circuits. The 1.8V operating voltage makes it suitable for modern portable and energy-efficient designs. The enable pin allows for dynamic power control, which is beneficial for battery-operated devices. Ensure the application environment stays within the specified operating temperature range for stable performance.
Part Context
This oscillator belongs to the QHTF series from Mercury Electronics, a manufacturer specializing in frequency control products since 1973. The series includes various SMD oscillators and crystals. This specific model represents a standard XO variant, distinct from differential oscillators like the H_K or H_EK series listed in their product portfolio.
Replacement Considerations
Direct substitutes must match the 87.351542 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify compatibility with other Mercury QHTF variants only if electrical parameters align exactly. Do not assume interchangeability with different output logic types or voltage levels.
