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Product Detailed Parameters
- Description：124.342875 M XO 1.8V 2.0X1.6 OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：124.342875 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 18QHTF21-124.342875-OE is a crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 124.342875 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Supports LVCMOS output logic for standard digital interface compatibility
- Integrates enable and disable functionality for power management
- Utilizes a surface-mount 4-SMD no-lead package design
Applications
- General clock signal generation in electronic circuits
- Digital systems requiring precise timing references
- Embedded devices utilizing LVCMOS interfaces
Procurement Notes
Verify the specific suffix 'OE' against official Mercury Electronics documentation to confirm exact electrical tolerances and pinout configurations. Ensure the required operating temperature range aligns with system constraints. Cross-reference the 124.342875 MHz frequency specification with the target circuit requirements to prevent timing mismatches during integration.
Selection Notes
Select this component when a 1.8V supply voltage is available and LVCMOS outputs are required. The 2.0x1.6mm footprint suits space-constrained designs. Confirm that the enable/disable pin requirement matches the system's power sequencing strategy. Validate that the 124.342875 MHz frequency is compatible with downstream clock dividers or processors.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, which specializes in quartz crystal frequency control products. The series offers various frequencies and package sizes. This specific model represents a high-frequency option within the 1.8V low-voltage segment of their oscillator portfolio.
Replacement Considerations
Direct substitutes include other 124.342875 MHz LVCMOS oscillators in 4-SMD 2.0x1.6mm packages from Mercury, such as variants with different suffixes if electrical parameters match. Verify pin compatibility and voltage levels before swapping.
