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Product Detailed Parameters
- Description：117.3491 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：117.3491 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 18QHTF21-117.3491-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 117.3491 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V and includes enable/disable functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is engineered for precise clock signal generation in digital circuits requiring stable timing references.
Feature Summary
- LVCMOS output logic for standard digital interface compatibility
- Integrated enable and disable control functionality
- Compact 4-SMD no-lead surface mount package design
Applications
- General purpose clock signal generation
- Digital circuit timing reference
- Embedded system clock sources
Procurement Notes
Verify the exact part number suffix against official Mercury Electronics documentation to ensure correct voltage and package specifications. Confirm that the OE suffix aligns with your specific supply voltage requirements, as variations exist within the product line. Cross-reference the manufacturer's latest datasheet to validate electrical characteristics before integration into final designs.
Selection Notes
Select this component when a 1.8V supply voltage and LVCMOS output are required for space-constrained designs. The 2.0x1.6mm footprint is suitable for high-density PCB layouts. Ensure the application environment falls within the specified operating temperature range. Verify that the enable/disable feature meets the power management needs of the target system architecture.
Part Context
This oscillator belongs to the QHTF series from Mercury Electronics, which specializes in quartz frequency control products. The company has decades of experience in manufacturing quartz crystals and oscillators. The QHTF series typically offers standard frequencies with small form factors, targeting consumer electronics and industrial applications requiring reliable timing solutions.
Replacement Considerations
Direct substitutes include the 18QHTF21-117.3491-PD variant from the same manufacturer family. Both share identical core electrical specifications and package dimensions. Verify pinout compatibility and mounting requirements when transitioning between different suffix variants to ensure seamless integration without redesign.
