18QHTF21-4.100-PD

Oscillators Overview

The 18QHTF21-4.100-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 4.1 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or 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. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• Low-voltage digital circuit timing
• Portable electronic devices
• Communication equipment clock sources

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application design. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4.1 MHz frequency matches the required clock signal. Check the datasheet for detailed electrical characteristics and mechanical drawing specifications before finalizing the procurement order.

Oscillators Selection Notes

Select this component when a low-profile, low-voltage oscillator is required for space-constrained designs. The LVCMOS output is suitable for direct interfacing with standard CMOS logic families. Consider the power-down feature if battery life optimization is a priority. Verify compatibility with the host controller's input impedance and drive strength requirements to ensure signal integrity.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a small form factor. The series is characterized by its suitability for modern consumer electronics and industrial applications where size and power consumption are critical constraints. The manufacturer specializes in quartz-based frequency control products.

Oscillators Replacement Considerations

Direct substitutes must match the 4.1 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Cross-reference with other manufacturers offering similar low-profile oscillators, ensuring identical pinout and electrical specifications to maintain board compatibility.