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18QHTF21-4.850-PD is listed in the Oscillators range at ChipApex. The manufacturer field lists Mercury Electronics Ind. Co. Ltd. Its product description is 4.85 MHz XO 1.8V 2.0X1.6 MM PD. Review the specifications below when checking this part for your BOM.
Oscillators specifications for 18QHTF21-4.850-PD
- Description：4.85 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：4.85 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：-
Oscillators datasheet and documents for 18QHTF21-4.850-PD
Oscillators Overview
The 18QHTF21-4.850-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 4.85 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and features a standby power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.
Oscillators Feature Summary
- Supports low-voltage operation at 1.8V
- Includes standby power-down capability
- Provides LVCMOS digital output signals
Oscillators Applications
- Battery-powered electronic devices
- Portable consumer electronics
- General-purpose clock signal generation
Oscillators Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 4-SMD no-lead package footprint matches the PCB design. Ensure the 1.8V supply rail stability meets the component's electrical specifications to maintain signal integrity.
Oscillators Selection Notes
Select this component when a precise 4.85 MHz reference clock is required in space-constrained designs. The choice is driven by the need for low-power consumption via the standby feature and compatibility with 1.8V logic systems. Evaluate thermal performance and size constraints relative to the 2.0x1.6mm package dimensions.
Oscillators Part Context
This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized small outline package format. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from continuous-operation variants.
Oscillators Replacement Considerations
Direct substitutes must match the 4.85 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering identical form-factor and electrical parameters.
Explore related parts through Crystals, Oscillators, Resonators, all product categories, ChipApex homepage.
