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Product Detailed Parameters
- Description：75.575 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：75.575 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 18QHTF21-75.575-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 75.575 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down function for standby mode control. 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 capability for energy management
- Provides LVCMOS output signal compatibility
Applications
- Embedded computer interface boards
- General timing clock applications
- Frequency control systems
Procurement Notes
Verify the exact frequency specification of 75.575 MHz against system requirements before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD No Lead package footprint matches the PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under intended environmental conditions.
Selection Notes
Select this component when a precise 75.575 MHz reference is required for digital interfaces. The choice is driven by the need for low-power operation via the standby feature. Consider the small 2.0x1.6mm form factor for space-constrained designs. Verify compatibility with LVCMOS logic levels used in the downstream processing circuits.
Part Context
This part belongs to the Mercury Electronic Ind. Co., Ltd. family of quartz crystal oscillators. The manufacturer specializes in frequency-control products including crystals, filters, and various oscillator types. This specific model represents a standard XO variant designed for modern electronic timing needs.
Replacement Considerations
Direct substitutes include other variants within the 18QHTF21 series from Mercury Electronics, such as 18QHTF21-75.675-PD or 18QHTF21-51.075-PD, provided the frequency difference is acceptable. Cross-referencing with identical specifications from other manufacturers requires careful verification of pinout and electrical parameters.
