Diode Arrays

Added a few pages to cover Diodes Arrays, off the main Diode Terms page.

One page covers Diode Arrays in a Flat package [Flat Pack Diode Arrays]. While another page covers Diode Arrays in a DIP package [DIP package Diode Arrays].

Both pages provide diode types, schematics and name designations.

Related pages, include:
Diode Manufactures,
Zener Diode Manufacturers,
Derating Diodes,
Zener Diode Terms.
Graphic; Diode Array 20-pin Flat Pack, Common Anode / Common Cathode.

How to Derate Diodes at high temperatures

A few of the last posts were related to Transistor Derating Curves. Although that was a new page addition, none of the new pages listed or linked from that page were ever listed here ~ because there were more than a few new pages. Here are a few examples:
2N3762 Transistor Derating Curve.
2N4029 Transistor Derating Curve.
2N6249 Transistor Derating Curve.

Diode Derating Curves have also been added over the last month, with no sub-pages listed here. So here are a few examples of those as well.
1N4954 Zener Diode Derating Curve.
1N5968 Zener Diode Derating Curve.
1N6036 Diode Derating Curve, TVS.

These links are just a sample, the pages have been on the web for a month now and there is no longer a need to re-list them here. However I did want to point out that new pages have been added, but not listed in this blog.

I also started a page on Diode Package Styles, or discrete component packages. The component package styles page is still small with only five sub-pages, but it's a start.

Embedded Board Standards

There are dozens of embedded board standards out there. Many board types are listed on the Industrial Board Formats page, but not every board variation. The page contains links to manufacturers that make a particular style of board.

One of the page links points to all the Mezzanine Card Manufacturers. Which then points to each of the different types of daughter cards. Two new links added include manufacturers that produce an FPGA Mezzanine Card [FMC], and an Express Mezzanine Card [EMC]. A small description of the EMC standard had already been listed as part of the Bus Definitions section, under EMC Mezzanine Bus. Neither of these two bus standards have been released yet, so there are no manufacturers that produce boards.

Another embedded board format that was added is the listing of EPIC Express Board Manufacturers, but because I just now up-loaded the page it's still a copy of the EPIC Board Manufacturers page. Again, the point of the pages is to list companies that produce cards in the listed formats. Only a very small description is provided for each board form factor.

Related: COTS Card Manufacturers, Embedded Mother Board Manufacturers, CCAs by Area.

NPN Transistor Derating Curve

In addition to adding more pages covering Transistor Derating Guidelines, two new pages were added to subdivide the listing.

One page covers NPN Transistor Derating Guidelines, while another page covers PNP Transistor Derating Guidelines. The new pages show each transistor link shown in a derating chart, even if the link points to a simular page already listed. One Temperature-Power Derating Curve may cover more than one transistor.

Power Derating for Transistors

Added two new main sections over the last few days, both of which come under the heading of Component Derating.

The first section covers Diode Temperature Derating Charts and is linked off the Diode Derating Guide Lines page. The new section covers six new pages, I won't re-list them here.

The second section covers Transistor Temperature Derating Charts and is linked off the main Component Derating page, which had not covered Transistors previously. The Transistor Derating Charts contain 27 new pages. Again, no need to relist all those pages address here.

A number of new graphic files were also added over the last few days, but I don't track those. So around 32 new pages have been added to the web site in the last few days.

All devices have a maximum current rating or power dissipation at 25C, but as the ambient air temperature is increased that maximum power dissipation must be reduced or derated.