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Date: Fri, 21 Oct 2011 12:28:08 -0400
Message-ID: <CAOuGh8_GqXfb4VNmkf9m4raqC38NSJH+4pxLae9y+O4wte3LQw@mail.gmail.com>
Subject: Re: [geda-user] Pager Motors
From: Bob Paddock <graceindustries AT gmail DOT com>
To: geda-user AT delorie DOT com
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On Fri, Oct 21, 2011 at 10:05 AM, Patrick Doyle <wpdster AT gmail DOT com> wrote:
> Does anybody on this list have any experience with pager motors
> (vibrational motors) such as the ones shown at
> http://pagermotors.com/Products.php?f_category=Pager?

http://jinlong-machinery.com/ might have data sheets.
They import a lot of them.  They are in New York City.

> I'm trying to figure out what the specification "1.5V @ 70mA" might
> mean in this context.  Does that mean the motor requires at least 1.5V
> in order to start spinning?

Yes.  More voltage or less voltage (stall)  will cause heat, and may
damage the motor.

Expect it to take 70mA at that voltage.

Some motors work with Cell Phone batteries which are in the 3.7 to 4.2V range.
You need to have the data sheet or do a LOT of testing.