I just bought a 1 MHz crystal oscillator for my am transmitter. The more voltage I apply to it the stronger the signal. The problem is that I do not know the maximum voltage it can handle. It does not have a data sheet. I would appreciate some help.

 

Does it have a part number?

 

The part number is 27861. I bought it from jameco.

 

Is it like this one? I'm pretty sure it's meant to run on 5V, to produce a 5V clock signal for a computer. I believe it's fine at 9V but I suppose its life might not be as long.

 

Almost all of those square xtal oscillators as used in appliances etc all run from 5v.

These days 3.3v is becoming more common so new models might be happy running from 3.3v.

Don't Jameco have a datasheet?

 

No data sheet.

 

FWIW, you might benefit from this project.

 

Here are the specifications.
I just went to the Jameco web site and searched for the part number.
If you click on overview, you'll see that the supply voltage is 5 ±.5V