ENG5251B-76.8M

Overview

The ENG5251B-76.8M is a Temperature Compensated Crystal Oscillator (TCXO) manufactured by NDK. It operates at a nominal frequency of 76.8 MHz and delivers a clipped sine wave output signal. The device supports a supply voltage of 1.8V and features a standby function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 1.60mm x 1.20mm and a maximum seated height of 0.55mm. The unit provides frequency stability of ±10 ppm over the operating temperature range of -40°C to +105°C.

Feature Summary

• Temperature compensated crystal oscillator design ensuring stable frequency performance across wide thermal ranges
• Compact surface-mount form factor suitable for space-constrained electronic assemblies
• Integrated standby mode capability to reduce power consumption during inactive periods

Applications

• Wireless communication modules requiring precise timing references
• Mobile devices and smartphones utilizing high-frequency clock signals
• Embedded systems needing low-profile oscillators with standby functionality

Procurement Notes

Verify the specific ordering suffix and tape/reel specifications against the manufacturer's official documentation before procurement. Confirm that the 1.8V supply requirement aligns with the target system design. Ensure compatibility with lead-free reflow soldering processes as specified in the component datasheet. Cross-reference the part number with authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when a clipped sine wave output is required rather than a square wave. The 1.8V supply voltage makes it suitable for low-power portable applications. Consider the ±10 ppm stability specification against system jitter requirements. The small 1.60mm x 1.20mm footprint is ideal for dense PCB layouts where vertical space is limited to under 0.55mm.

Part Context

This TCXO belongs to NDK's series of miniature oscillators designed for modern mobile and wireless electronics. It complements other models in the lineup by offering a balance of size, power efficiency, and frequency stability. The 4-SMD package type is standard for automated surface-mount assembly processes used in consumer electronics manufacturing.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pinout compatibility and electrical parameters such as supply voltage and output waveform before replacing the component.

FAQ

What is the output waveform type?

The ENG5251B-76.8M produces a clipped sine wave output.

What is the operating temperature range?

The device operates within a temperature range of -40°C to +105°C.