18QHTF21-3.856274-PD

Oscillators Overview

The 18QHTF21-3.856274-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 3.856274 MHz with an LVCMOS output logic level. The device supports a supply voltage of 3.3V and features a power-down (standby) function. It is housed in a compact 4-SMD, No Lead package with dimensions of 3.2mm x 2.5mm. The component is RoHS compliant and designed for standard clock signal applications requiring precise frequency control.

Oscillators Feature Summary

• Integrates LVCMOS output interface for direct digital logic compatibility
• Includes standby mode capability to reduce power consumption during idle states
• Utilizes surface-mount packaging for automated assembly integration

Oscillators Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller synchronization

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct voltage and package variants. Confirm RoHS compliance status through official documentation prior to procurement. Cross-reference the part number with authorized distributors to validate authenticity and avoid counterfeit components.

Oscillators Selection Notes

Select this component when a fixed frequency of 3.856274 MHz is required with low-profile surface mount constraints. Ensure the design accommodates the 3.3V supply requirement and LVCMOS logic levels. Consider the thermal characteristics and operating temperature range specified in the official data sheet for environmental suitability.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics XO series, which specializes in precision frequency control products. The company has been manufacturing crystal components since 1973, establishing expertise in Taiwan's crystal industry. This model represents a standard single-ended output variant within their broader portfolio of oscillators and crystals.

Oscillators Replacement Considerations

Direct substitutes must match the 3.856274 MHz frequency, 3.3V supply, LVCMOS output, and 3.2x2.5mm SMD package. Verify pinout compatibility and electrical specifications before substitution. Consult the manufacturer's cross-reference list for approved equivalent parts.