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Product Detailed Parameters
- Description：1.0486 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：1.0486 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)：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 18QHTF21-1.0486-PD is a crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 1.0486 MHz with an LVCMOS output logic type. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for standard clock applications within specified operating temperature ranges.
Feature Summary
- Supports low voltage operation at 1.8V
- Includes standby and power-down functionality
- Utilizes LVCMOS output logic
Applications
- Portable electronic devices
- Compact embedded systems
- Standard clock signal generation
Procurement Notes
Verify the specific suffix (PD) against official datasheets to confirm the presence of the power-down feature and exact packaging configuration. Ensure compatibility with 1.8V logic levels and 2.0x1.6mm footprint requirements before integration. Cross-reference manufacturer part numbers to avoid confusion with similar variants.
Selection Notes
Select this component when a precise 1.0486 MHz clock source is required for low-power applications. The 1.8V supply and small SMD package make it suitable for space-constrained designs. Confirm that the LVCMOS output meets the input requirements of the target circuitry and that the operating temperature range aligns with environmental conditions.
Part Context
This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series is characterized by its small form factor and low voltage operation, targeting modern portable electronics. The 'PD' suffix typically indicates specific pin configurations or functional options like power-down control.
Replacement Considerations
Direct substitutes must match the 1.0486 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and electrical parameters such as load current and stability before substitution.
