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Product Detailed Parameters
- Description：121.3056 MHz XO 1.8V 2.0X1.6 OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：121.3056 MHz
- Function：Enable/Disable
- 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)：28mA
- 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 18QHTF21-121.3056-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 121.3056 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Features integrated enable and disable control functionality
- Utilizes a small form factor 4-SMD no-lead package design
Applications
- General purpose clock signal generation
- Digital circuit timing reference
- Embedded system clock sources
Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to ensure correct configuration. Confirm that the OE suffix aligns with required packaging or testing specifications. Cross-reference the part number with official Mercury Electronics catalogs to validate availability and exact electrical tolerances before finalizing procurement orders.
Selection Notes
Select this component when a 1.8V supply voltage is required for low-power applications. Ensure the 121.3056 MHz frequency matches the target system clock requirements. Verify that the 4-SMD package footprint fits within the available PCB area constraints. Consider the enable/disable feature if power management during idle states is necessary for the design.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series typically offers standard XO configurations with various frequency options. Mercury Electronics has a long history in manufacturing quartz crystals and oscillators, providing reliable timing solutions for electronic components.
Replacement Considerations
Direct substitutes may include other 121.3056 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and voltage levels before substitution. Check datasheets for equivalent performance metrics regarding phase noise and stability.
