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Product Detailed Parameters
- Description：58.934167 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：58.934167 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)：24mA
- 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 18QHTF21-58.934167-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 58.934167 MHz and utilizes LVCMOS output logic. The device is powered by a 1.8V supply voltage and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm. The component is RoHS compliant and classified under Moisture Sensitivity Level 1.
Feature Summary
- Supports low-voltage operation at 1.8V with LVCMOS output compatibility
- Includes standby and power-down functionality for reduced power consumption
- Utilizes a compact 4-SMD no-lead surface mount package
Applications
- General clock signal generation in electronic circuits
- Timing reference for digital systems requiring 58.934167 MHz
- Embedded devices utilizing LVCMOS interfaces
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 operational limits specified in the official datasheet. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly.
Selection Notes
Select this component when a precise 58.934167 MHz timing source is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage and the availability of power-down modes if energy efficiency is a priority. The small form factor makes it suitable for space-constrained designs, provided the thermal and electrical characteristics align with the system's environmental conditions.
Part Context
This part belongs to the QHTF series of quartz-type oscillators from Mercury Electronics. The series includes various frequencies and packages, such as H21, H22, and SWO variants. The 'PD' suffix typically indicates the inclusion of a power-down pin or feature, distinguishing it from standard continuous-operation models within the same family.
Replacement Considerations
Direct substitutes must match the 58.934167 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent performance metrics including phase noise and jitter specifications. Cross-reference with other manufacturers offering similar XO components to ensure functional compatibility without altering the board layout.
