Andrew
Andrew Content Marketer
On Jul 23, 2025

HC-49/U-4.00MHZ-30PF Crystals by Netech – Stable Clock Source for Precision Timing

The Crystals HC-49/U-4.00MHZ-30PF by Netech are highly stable frequency control components that provide precise 4.00 MHz oscillation in a wide range of electronic devices. Designed for cost-efficiency and consistent performance, these crystals are ideal for use in microcontroller systems, digital clocks, RF applications, and communication equipment.

In this blog, we highlight the technical specifications, key benefits, and applications of the HC-49/U-4.00MHZ-30PF Crystals by Netech, showing why they are a reliable choice for time-critical electronic systems.


Technical Specifications of HC-49/U-4.00MHZ-30PF

  • Manufacturer: Netech

  • Part Number: HC-49/U-4.00MHZ-30PF

  • Frequency: 4.00 MHz

  • Load Capacitance: 30 pF

  • Package Type: HC-49/U

  • Frequency Tolerance: ±30 ppm

  • Operating Temperature: -20°C to +70°C

  • Mounting Style: Through Hole

  • Aging: ±5 ppm/year max

  • Drive Level: 1 mW typical

  • RoHS Compliant: Yes

These Crystals by Netech are known for low phase noise, long-term stability, and compatibility with a wide range of oscillator circuits.


Key Features of HC-49/U-4.00MHZ-30PF Crystal

  • 4.00 MHz Nominal Frequency – Ideal for time-base and communication protocols

  • HC-49/U Package – Industry-standard for easy PCB integration

  • ±30 ppm Frequency Tolerance – Ensures stable and accurate signal generation

  • 30 pF Load Capacitance – Perfect match for common oscillator designs

  • RoHS Compliance – Meets environmental and safety standards

These features make Crystals by Netech dependable components for accurate signal timing across embedded and RF systems.


Applications of HC-49/U-4.00MHZ-30PF

  • Microcontroller Clocks (MCUs)

  • UART/USART Interfaces

  • Digital Timers & Real-Time Clocks (RTC)

  • Modems & Communication Systems

  • Frequency Synthesizers

  • Instrumentation & Test Equipment

The consistent performance of Crystals by Netech makes them a go-to timing solution in both consumer and industrial electronics.


Wiring and Implementation Tips

Typical Setup:

[MCU XTAL Pin] - [Crystal] - [MCU XTAL Pin]  
Include 2 load capacitors (15–33pF) to GND for proper oscillation.

Ensure traces are kept short and shielded from noise sources for optimal frequency stability.


Use Case Scenario: Reliable Oscillator for Embedded Control

Scenario: An embedded systems company needed a stable 4 MHz clock for a budget-sensitive microcontroller project.
Problem: Inconsistent crystal performance from alternative suppliers.
Solution: The HC-49/U-4.00MHZ-30PF Crystals by Netech delivered consistent frequency tolerance and excellent thermal stability.
Result: Enhanced system reliability and simplified design validation.


Download Datasheet for HC-49/U-4.00MHZ-30PF

Need detailed specs or electrical characteristics?

Download HC-49/U-4.00MHZ-30PF Datasheet from Xon Electronics


Why Buy from Xon Electronics?

Xon Electronics offers genuine Crystals by Netech with:

  • Verified Netech Components
  • Worldwide Shipping – USA, India, Australia, Europe & more
  • Ready-to-Ship Inventory & Volume Discounts
  • Design Support Available
  • Secure Ordering Platform

Order your HC-49/U-4.00MHZ-30PF Crystals by Netech now at www.xonelec.com.


Conclusion

The HC-49/U-4.00MHZ-30PF Crystals by Netech are an ideal choice for accurate and stable frequency control in embedded, telecom, and timing-sensitive applications. Their industry-standard design, 30pF load capacitance, and excellent tolerance make them perfect for cost-effective circuit integration. Available now at Xon Electronics with global delivery to USA, India, Australia, Europe, and beyond.


FAQs – HC-49/U-4.00MHZ-30PF Crystal

Q1. What is the tolerance of this crystal?
±30 ppm.

Q2. What package type is it?
Standard HC-49/U through-hole.

Q3. What is the recommended load capacitance?
30 pF.

Q4. Can I use this with a microcontroller?
Yes, it is commonly used with MCUs requiring 4 MHz input clocks.

Q5. Is international shipping available?
Yes, via www.xonelec.com – to USA, India, Australia, Europe, and more.


 


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