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Product Detailed Parameters
- Description：91.775 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：91.775 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 18QHTF21-91.775-PD is a crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 91.77495 MHz and utilizes LVCMOS output logic. The device requires a 2.5V supply voltage and features a power-down function for standby control. It is housed in a 4-SMD, No Lead package with dimensions of 2.5mm x 2.0mm. The component supports an operating temperature range suitable for standard industrial applications.
Feature Summary
- Integrates a power-down pin for standby mode control to reduce power consumption
- Provides stable LVCMOS output signals for digital circuit synchronization
- Utilizes a compact surface-mount package design for automated assembly
Applications
- Digital signal processing systems requiring precise clock timing
- Communication equipment utilizing standard serial interfaces
- Embedded controllers needing low-power oscillation sources
Procurement Notes
Verify the specific suffix against official datasheets to confirm voltage and package variations. Ensure compatibility with PCB footprint dimensions prior to integration. Cross-reference manufacturer part numbers to avoid substitution errors during procurement processes.
Selection Notes
Select this component when a 2.5V supply and 91.775 MHz frequency are required. Consider the 2.5x2.0mm package size for space-constrained layouts. Evaluate power-down requirements if standby functionality is necessary for system efficiency.
Part Context
This oscillator belongs to the Mercury Electronic 18QHTF21 series, designed for general-purpose timing applications. The series offers various frequencies and voltages, providing flexibility for different electronic designs while maintaining consistent performance standards across the product line.
Replacement Considerations
Direct substitutes include other 91.775 MHz LVCMOS oscillators in similar packages. Verify voltage tolerance and current consumption matches before replacement. Consult manufacturer cross-reference lists for approved alternative part numbers.
