NSC5021D-27M

Overview

The NSC5021D-27M is a standard CMOS crystal oscillator manufactured by NDK. It operates at a frequency of 27 MHz with a supply voltage of 3.3 V. The device features a low-profile 4-SMD, no-lead package measuring 3.20 mm in length, 2.50 mm in width, and a maximum seated height of 0.80 mm. It supports standby or power-down functionality and has a maximum supply current of 5 mA.

Feature Summary

• Integrates CMOS output driver for direct logic interface compatibility
• Supports standby mode to reduce power consumption during idle periods
• Provides stable clock generation within a compact surface-mount footprint

Applications

• Embedded system clock sources requiring low power operation
• Consumer electronics utilizing 3.3 V logic families
• Portable devices where space constraints limit component size

Procurement Notes

Verify the specific output load requirements and supply voltage tolerance against the target circuit design before procurement. Confirm that the 3.3 V operating range aligns with the system power rails. Ensure the 4-SMD package dimensions fit within the designated PCB area. Check for any required ESD protection measures during handling and assembly processes.

Selection Notes

Select this component when a precise 27 MHz reference is needed for 3.3 V digital circuits. Consider the standby feature if power management is critical. Compare the 5 mA current draw against system budget constraints. Evaluate the 0.80 mm height against vertical clearance limitations in the enclosure design.

Part Context

This oscillator belongs to NDK's series of surface-mount timing solutions designed for modern portable electronics. It replaces larger through-hole crystals by integrating the resonator and driver into a single small package. The product line focuses on reducing board space while maintaining signal integrity for high-speed digital interfaces.

Replacement Considerations

STDCRS2-27M

FAQ

Does the NSC5021D-27M support power-down modes?

Yes, the device includes a standby function to minimize current consumption when not actively transmitting clock signals.

What is the maximum supply current for this oscillator?

The maximum supply current is specified as 5 mA under normal operating conditions.