HC49U THD Crystal

HC49U THD Crystal

HC49U THD Crystal

HC49U HC49T crystal

The HC49U crystal is a widely used in quartz crystal oscillators known for its stability and precision in frequency control applications. It belongs to the HC49 family and is typically employed in electronic circuits that require accurate timing, such as microcontrollers, communication devices, and embedded systems.

Key Features

  1. Frequency Range: The HC49U crystal operates over a broad frequency range, commonly between 1 MHz and 176 MHz.
  2. Stability: It offers excellent frequency stability over various temperatures, making it reliable for both commercial and industrial applications.
  3. Package: The HC49U is housed in a through-hole package, making it easy to integrate into PCB designs. Also available in a low profile HC49T housing with height of 11.3 mm.
  4. Load Capacitance: It typically requires a load capacitance in the range of 18 pF to 30 pF in fundamental mode, depending on circuit requirements.

Applications

  • Microcontrollers: Provides clock signals for precise processing.
  • Communication Systems: Ensures stable carrier frequencies.
  • Timing Devices: Used in watches, timers, and clocks for accuracy.
  • Computers: Maintains system clock stability.

Advantages

  • High frequency stability
  • Low aging rate
  • Cost-effective
  • Widely available

In conclusion, the HC49U crystal is an essential component in electronics, valued for its reliability, accuracy, and versatility in frequency control applications.
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SPECIFICATIONS:

Frequency range: 1.8432 MHz - 176 MHz
Package size: HC49U 11.0 x 4.7 x 13.5 mm
HC49T 11.0 x 4.7 x 11.3 mm
Modes:

AT-cut, fundamentel 1.8432 MHz - 48 MHz
AT-cut, 3rd-overtone 26 MHz - 90 MHz
AT-cut, 5th-overtone 80 MHz - 176 MHz
Standard ESR:
  • 1.8432 MHz, fundamental, 500Ω max.
  • 2 MHz - 3MHz, fundamental, 350Ω max.
  • 3 MHz - 3.2 MHz, fundamental, 200Ω max.
  • 3.2 MHz - 4 MHz, fundamental, 150Ω max.
  • 4 MHz - 4.5 MHz, fundamental, 100Ω max.
  • 4.5 MHz - 5 MHz, fundamental, 80Ω max.
  • 5 MHz - 7 MHz, fundamental, 50Ω max.
  • 7 MHz - 10 MHz, fundamental, 35Ω max.
  • 10 MHz - 48 MHz, fundamental, 25Ω max.
  • 26 MHz - 90 MHz, 3rd-overtone, 70Ω max.
  • 80 MHz - 176 MHz, 5th-overtone, 120Ω max.
Outline dimensions:

 

HV49U crystal THD


Click for specification sheet

About

At FCD-Tech, we deliver cutting-edge Frequency Control Devices and Microwave Products designed for exceptional performance, reliability, and accuracy. Our extensive product range includes:

  • Quartz Crystals
  • Crystal Oscillators (VCXO, TCXO, OCXO, PXO, Microwave Oscillator)
  • Crystal Filters
  • Advanced Microwave Components

We proudly serve industries such as telecommunications, industrial electronics, and other sectors requiring high-precision frequency control.

Contact info

  • FCD-Tech B.V.
  • Stationsplein 99-302
    1703WE Heerhugowaard
    Netherlands
  • +31 (0)20 8932140
  • [email protected]