Starting with the long list of Transistor Derating Curves, I added in several transistor links to Transistor Derating Guidelines [which is the new page]. Or, recommendations on how to derate a transistor based on a linear equation, with no graphic [Derating Curve].
The new transistor links pick up missing devices in the list, but because I didn't have a derating chart they all point to the new page which provides the derating recommendation for each of the devices. The recommendation for each transistor is how much to decrease power dissipation over increasing temperature, mW/C [and that's all].
Two of the main links off the transistor derating page are NPN Derating Curves, and PNP Derating Curves, but I don't have any plans to add the new links to either of those pages.
Individual transistor pages not yet listed in the blog;
2N3250 Derating Curve.
2N3467 Derating Curve.
2N3485 Derating Curve.
2N3634 Derating Curve.
2N3740 Derating Curve.
A related list; How to derate FETs.
2N6764 Derating Curve.
2N6766 Derating Curve.
2N6768 Derating Curve.
How to Derate a Component.
Site Home page; Computer Bus pin Outs.
Thursday, February 12, 2009
Recommendation on how to Derate a Transistor
Tuesday, February 10, 2009
Dsub Connector Gender Changer
Added a new page to define Gender Changers. The page is linked off one of the Dictionary of Engineering Terms pages, and off the Manufacturers of D-Sub Connectors page. I'll start to add companies that manufacturer gender changers as I find them.
The graphic is an adapter and not a gender changer. D-sub is short hand for D-Subminiature.
Related pages:
Dsub Shell Dimensions.
Dsub Insert Arrangements.
Mil-C-24308 Connector Manufacturers.
IDC D-sub Shell Dimensions.
Pin/Plug D-sub Shell Dimensions.
9-pin Dsub Insert Arrangement.
25-pin Dsub Insert Arrangements.
An Insert Arrangement is another way to indicate a connector pin out. Insert Arrangements indicate the pin numbering of a connector but does not indicate what signal may be on a pin. The term Signal Assignment is used to define a particular pin with an electrical signal. Signal Assignments for any number of interface buses may be found on the Personal Computer Buses page.
It's a bit early in the day, the virus scanner is running, my server is off-line, and I just can't figure out what to say ~ so I'll have to get back to it and fix it later.