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Product Detailed Parameters
- Description：6.7 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：6.7 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)：21mA
- 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 18QHTF21-6.700-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 6.700 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable function for power management. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications. The unit supports an operating temperature range of -40°C to 85°C and maintains a frequency stability of ±50ppm.
Feature Summary
- Integrated enable/disable control functionality
- LVCMOS output signal compatibility
- Compact 4-SMD no-lead surface mount packaging
Applications
- General-purpose digital clock generation
- Embedded system timing references
- Consumer electronics internal clocks
Procurement Notes
Verify the specific frequency suffix matches the required 6.700 MHz target. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the LVCMOS output level is compatible with the receiving logic inputs. Check the operating temperature range requirements against the environmental conditions of the final application.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside precise timing stability. The enable/disable feature makes it suitable for battery-powered devices requiring power conservation. The small form factor fits space-constrained PCB layouts. Verify that the ±50ppm stability meets the system's jitter and tolerance specifications.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a manufacturer specializing in quartz crystals and oscillators. The series offers various frequencies within a standardized 4-SMD footprint. This specific model represents a fixed-frequency XO variant designed for cost-effective timing solutions in consumer and industrial electronics.
Replacement Considerations
Direct substitutes include other 18QHTF21 series variants with identical pinout and electrical characteristics but different frequency suffixes, such as 18QHTF21-6.300-OE or 18QHTF21-6.1679-OE, provided the frequency difference is acceptable for the application.
