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Product Detailed Parameters
- Description：49.4867 MHz XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：49.4867 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)：23mA
- 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 18QHTF21-49.4867-PD is a standard frequency crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.4867 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and supports a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm. This component is designed for precise timing applications requiring low profile surface mount integration.
Feature Summary
- LVCMOS output logic compatible with standard digital interfaces
- Supports standby power-down mode to reduce current consumption
- Compact 4-SMD no-lead package suitable for space-constrained designs
Applications
- Digital signal processing timing references
- Communication equipment clock sources
- Embedded system microcontroller clocks
Procurement Notes
Verify the specific suffix 'PD' indicates the power-down feature as documented. Confirm the 1.8V supply requirement matches your circuit design. Ensure the 4-SMD footprint aligns with your PCB layout constraints. Check RoHS compliance status if required by your manufacturing standards. Validate the operating temperature range against your environmental specifications before finalizing procurement.
Selection Notes
Select this component when a 49.4867 MHz reference is required with low voltage operation. The LVCMOS output simplifies interface design compared to other logic families. The small form factor aids in high-density board layouts. Consider the power-down capability if battery life or thermal management is a priority. Compare against similar Mercury oscillators if different frequencies or packages are needed.
Part Context
Mercury Electronic Ind. Co. Ltd is a Taiwan-based manufacturer specializing in frequency control products since 1973. The company produces quartz crystals, oscillators, filters, and TCXOs. The 18QHTF series represents their line of surface mount crystal oscillators designed for modern electronic applications requiring reliable timing solutions.
FAQ
What is the output logic type?
The output logic type is LVCMOS.
Does this model support power saving modes?
Yes, it supports a standby (power down) mode.
