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Quartz Crystals

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Application Notes

Quartz Crystals

Andhra Electronics Limited manufactures high stability, low ageing crystals from 1 MHz to 170 MHz. All crystals are manufactured in a class 1000 clean room environment. Most crystals can be delivered in 7 days.

 

Package

 

Model

 

Weld Type

 

Frequency Range

 

Mode of OS

 

Features

ROHS

Compatible

Data Sheet

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Through Hole

HC-49/U
HC-49/T
HC-50/U
HC-42/U

Resistance Weld

1.8432 to 36.864 MHz

FUND

  • High Stability
  • Less than 3 ppm/year aging
  • All Metal Welded Package

   

    

 

 

20 to 150 MHz

OVERTONE

HC49U/S2 

Resistance Weld

3 to 33.5 MHz

FUND

  • Frequency Stability 10/20/30 ppm

      

 

26 to 75 MHz

OVERTONE

HC-43/U

Cold Weld

1.8432 to 36.864 MHz

FUND

  • High Stability
  • Less than 1 ppm/year aging.
  • All Metal Welded Package

      

 

20 to 150 MHz

OVERTONE

HC-49/U 3 lead

Resistance Weld

 3 to 36.864 MHz

FUND

  • High Stability
  • Less than 3 ppm/year aging.
  • All Metal Welded Package

    

 

20 to 150 MHz

OVERTONE

HC-49 U Gull Wing

Resistance Weld

1.8432 to 36.864 MHz

FUND

  • High Stability
  • Less than 3 ppm/year aging.
  • All Metal Welded Package

    

 

20 to 150 MHz

OVERTONE

HC-51/U
HC-48/U
HC-47/U

Resistance Weld

1 to 37 MHz

FUND

  • High Stability
  • Less than 3 ppm/year aging.
  • All Metal Welded Package

 

 

20 to 150 MHz 

OVERTONE

HC-36/U

Cold Weld

1 to 37 MHz

FUND

  • High Stability
  • Less than 1 ppm/year aging.
  • All Metal Welded Package

20 to 150 MHz 

OVERTONE

TO-5

Cold Weld

4 to 40 MHz  

FUND

  • High Stability
  • Less than 1 ppm/year aging.
  • All Metal Welded Package

 

    

 

20 to 125 MHz 

OVERTONE

UM-1
UM-1 Slim
UM-1 3lead

Resistance Weld

7.5 to 41 MHz 

FUND

  • High Stability
  • Less than 3 ppm/year aging.
  • All Metal Welded Package

 

 

    

 

20 to 170 MHz 

OVERTONE

UM-1 Cold Weld

Cold Weld

7.5 to 41 MHz 

FUND

  • High Stability
  • Less than 1 ppm/year aging.
  • All Metal Welded Package

20 to 170 MHz 

OVERTONE

UM-5

Resistance Weld

14 to 37 MHz 

FUND

  • High Stability
  • Less than 3 ppm/year aging.
  • All Metal Welded Package

    

 

45 to 120 MHz 

OVERTONE

Unpackaged

Monitor Crystals

4 to 10 MHz

 

  • Chrome / Gold Plating

   

 

Tuning Fork Crystal

Tubular

32.768 KHz

FUND

  • Frequency Stability 20 ppm
  • All Metal Welded Package

    

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SMD

SMD Tuning Fork 2pads

Ceramic Package

32.768KHz

FUND

  • Frequency Stability 20ppm

     

 

HC-51/U SMD

Resistance Weld

 1 to 37 MHz 

 

FUND

  • High Stability,
  • Less than 3 ppm/year aging.

 

 

20 to 85 MHz

OVERTONE

UM-1 SMD Gull Wing

Resistance Weld

7.5 to 40 MHz 

FUND

  • Metal Jacket, 3 ppm/year

     

    

 

30 to 150 MHz 

OVERTONE

HC49U/SS 

Resistance Weld

3 to 33.5 MHz

FUND

  • Frequency Stability 10/20/30 ppm

     

 

26 to 75 MHz

OVERTONE

CRYSTAL- AE 3225

Seam Weld

12 to 40 MHz

FUND

  • Frequency Stability 10/15/20 ppm

     

 

30 to 40 MHz

OVERTONE

CRYSTAL-AE 4025

Seam Weld

12 to 26 MHz

FUND

 

  • Frequency Stability 10/15/20 ppm

     

 

CRYSTAL-AE 5032

Seam Weld

10 to 40 MHz

FUND

 

  • Frequency Stability 10/15/20 ppm

     

 

CRYSTAL- AE6035

Seam Weld

8 to 40 MHz

FUND

  • Frequency Stability 10/15/20 ppm

     

 

40 to 80 MHz

OVERTONE

CRYSTAL- AE7050

Seam Weld

 8 to 40 MHz

FUND

  • Frequency Stability 5/10/15/20 ppm

     

 

40 to 80 MHZ

OVERTONE

Copyright © Andhra Electronics Ltd. May- 2008