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Posts Tagged ‘package

Transistor Package (Case) Styles

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 <<>> Semiconductor Transistor Case Packages”

TO-3, 3-Pin Through-Hole, Metal Case [case mount]
.. 4-Pin TO-3, Through-Hole, Metal Case [case mount]
.. 8-Pin TO-3, Through-Hole, Metal Case [case mount]

TO-5, Through-Hole, Metal Case [3-leads]
.. 8-Pin TO-5, Through-Hole, Metal Case [8-leads]

TO-8, Through-Hole, Metal Case [12-leads]

TO-9 Metal Can, Axial Leads, .200 Pin Circle

TO-11 Metal Can, Axial Leads, Graphic to the left

TO-12 Metal Can Axial Leads, .200 Pin Circle

TO-18, Through-Hole, Metal Case

Sumber (source): http://www.interfacebus.com/semiconductor-transistor-packages.html


<<>> “Transistor Outlines Archive”

Sumber (source): http://www.jedec.org/standards-documents/


<<>> “Discrete Packaging”

Sumber (source): http://www.fairchildsemi.com/products/discrete/packaging/pkg.html


<<>> “Semiconductor Packages”

Sumber (source): http://malaysia.rs-online.com/



Written by sunupradana

August 2, 2011 at 4:20 am

Posted in Components, Electronics

Tagged with , ,

Cheat sheet ExpressPCB component footprint

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Bertahun-tahun lalu saya menggunakan aplikasi Traxmaker untuk membuat PCB. Salah satu yang saya sukai dari aplikasi itu adalah terdapatnya sebuah file berformat PDF yang berisi dokumentasi footprint dari komponen-komponen.

Selang beberapa waktu saya kemudian beralih ke aplikasi dengan fungsi serupa yaitu ExpressPCB. Aplikasi ini gratis sehingga bebas dipergunakan tanpa perasaan sebagai “pencuri” :-D. Sayangnya file dokumentasi untuk footprint atau package tidak tersedia pada aplikasi ini. Untuk mempermudah pekerjaan, sebelum akhirnya hafal dengan sendirinya :-), maka waktu itu saya membuat sehalaman penuh berisi footprint alias cetak kaki dan bodi komponen-komponen elektronik. Sayangnya catatan (cheat sheet) itu hilang, tahun berganti … lama saya tak lagi aktif mempergunakan aplikasi itu.

Nah, sekarang karena tuntutan keperluan saya mulai akan sering mempergunakan ExpressPCB lagi. Apalagi aplikasi itu dapat berjalan mulus di lingkungan Ubuntu GNU/Linux berkat WINE. Maka supaya tidak kagok, PCB cepat selesai dan saya cepat hafal lagi maka saya buat lagi “contekan” serupa.

Kali ini lebih ringkas dan sederhana:

File yang saya buat itu, yang saya beri nama “symbols.pcb”, dapat diunduh (downloadable) di sini:



Written by sunupradana

August 1, 2011 at 6:22 pm

Eagle component naming, package [sebuah catatan pencarian]

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Ini adalah hasil pencarian saya di Internet mengenai penulisan ukuran komponen (package) pada aplikasi CadSoft Eagle.


With regards to the resistors, when you are looking through the ‘resistor’ library the parts have a ‘type’. The First half is the width in mm (at least for the EU parts) and the second part is the length. The ‘grid’ is the distance between the two solder holes. 

For example, a 0309/10 resistor is 3mm in diameter, with a 9mm length and the holes are set 10mm apart. Therefore, simply measure your resistor and use something similar.

sumber: a.d. http://arduino.cc/forum/index.php?topic=66609.0


“(1 W/0207 size to > 3 W/0617 size)” …

And what does type 207 mean? I know it a package but I don’t see 207 in the data sheet. What does types 204, 207, 309, 411 mean? …

<<>> It is the diameter and size of the resistor body in centimeters. So the 1. value in your example means 1 Watt and body size 2×7 Milimeters = 0,2×0,7 Centimeters. Forget the x and commas and you have 0207. (Like you write 2k7 for a resistor value of 2.7 kilo ohms). 
The 3 Watts resistor has a body of 6×17 milli- or 0,6×1,7 centimeters. Since it is not really healthy for a resistor to bend the wires sharp at the body you leave a milimeter or two before you bend them as seen at page 4 of your pdf-file. So this leads to the “/value”. If you check the eagle rcl.lbr pick a resistor 0207/7 and a 207/15 and place them in the schematic. They look alike but if you switch to brd you will notice the differece. The bodies are equal but the wires have a different length. So the value behind the / is the grid size of the part.

sumber: http://www.eaglecentral.ca/forums/


To find something suitable in the libraries

From the Kemet data sheet:

The C315 package has the following characteristics:

Lead spacing 2.54mm (0.1″)

Lead diameter 0.51mm (0.020″)

Package width 3.81mm (0.15″)

Package thickness Std Voltage 2.54mm (0.1″) , High Voltage 3.18mm (0.15″)


In the library rcl.lib select your capacitor symbol preference of either C-EU or C-US

From the listed capacitors the ones that fit you size requirements have the package C025-024X044

C025 = Capacitor with lead spacing of 2.5mm

024X044 = tPlace depiction of package size 2.5 x 4.4mm. This is a suitable match for the datasheet values of 2.54 x 3.18mm.

Opening the library, check the drill diameter of the pads. In my library its 0.032″ which would suit the lead diameter of 0.020″.

sumber: http://www.eaglecentral.ca/forums/


The general purpose fixed resistor devices are called either R-US (if you like the US zigzag line type of schematics symbol) or R-EU (if you prefer the European simple rectangle.] The package options are numerous, but make sense after you realize that there’s a common format: WWLL/SSwhere WW is the body width, LL is the body length, and SS is the hole spacing, all in truncated millimeters.

A typical 1/4W resistor measures about 2.5mm in diameter and 7mm long; hole spacing depends on how you bend the leads. So R-US0207/10 is a 1/4W resistor with 10mm (actually 4*2.54, or 10.16mm, since we want to stay close to a 0.1 inch (2.54mm) grid.) R-US0207/2V is the same resistor mounted vertically with 2.54mm lead spacing. 1/8W resistors are similarly designated R-US_0204/SS”

Capacitors are worse than resistors, largely because their bodies come in a wider variety of shapes (that are less standardized), and of course there are all those different types; disk, ceramic, mylar, film, electrolytic, tantalum, AC filter, etc (and those are just the FIXED value caps!) Again, threre are slightly different US and European schematic symbols C-US and C-EU in rcl.lib.

Again, there’s a plethora of packages, but there’s a standard format. In this case it’s SSS-WWWXLLL, where SSS is the lead spacing (with an extra digit this time!), WWW is the body width, and LLL is the body length.

Polarized caps are similar (CPOL-US or CPOL-EU in rcl.lbr), with a package name like TSSS-DD, where T is a type designator (E for electrolytics, TT for tantalum drops, for instance) SSS is the spacing again (only now it probably has an actual decimal point!), and DD is the diameter (for radial caps).

sumber: “Draw Electronic Schematics with CadSoft EAGLE” by westfw on August 6, 2006. http://www.instructables.com


<<>> As I am based in Europe, I use the European (EU) symbols for resistors, capacitors and inductors. If you prefer the US symbols, select them instead.
For any of the libraries, expand the library and you will see a list of components. Use the following table to help find the part you require, note SMT = Surface MounT, PTH = Plated Through Hole.


Range of values




Ceramic Capacitor (PTH)

10pF to 1nF



2.5 mm pitch, 5 mm outline

Ceramic Capacitor (PTH)

1nF to 220nF



5mm pitch, outline 3×7.5 mm

Ceramic Capacitor (SMT)

10pF to 100nF



Typical range for 0603 size,check your specific part

Caermic Capacitor (SMT)

100nF to 47uF



Typical range for 1206 size,check your specific part

Electrolytic Capacitor (PTH)

1uF to 47uF



Typical for 10-35V parts. 2 mm pitch, 5 mm diameter.

Electrolytic Capacitor (PTH)

47uF to 100uF



Typical for 10-35V parts.2.5mm pitch, 7 mm diameter.

Electrolytic Capacitor (PTH)

100uF to 220uF



Typical for 10-35V parts.  3.5 mm pitch, 8mm diameter

Electrolytic Capacitor (PTH)

470uF to 1000uF



Typical for 10-35V parts, 5 mm pitch, 13 mm diameter.

Inductor (PTH)





Inductor (PTH)





Inductor (PTH)





 1/8W resistor (PTH)




5 mm grid

1/4 to 1/2W Resistor (PTH)




7.5 mm grid

1 W resistor (PTH)




15 mm grid

3 W resistor (PTH)




17 mm grid

1/16 W resistor (SMT)




Typical power for 0603 size

1/4 W resistor (SMT)




Typical power of 1206 size

1 W resistor (SMT)




Typical power for 2512 size

The values and types listed above are typical based on component data taken from manufacturers data. Always check the sizes for your particular parts to ensure they are the correct size.


Commonly required parts and their location




Pin strip header


0.1″/2.54mm pin header

Drill holes


Select drill hole or mounting pad and size required

USB connector


Select required types, double check footprints.

Crystal or oscillator


Check footprints

Power connections


More on this later

Toggle switch


Numerous switches

Test pad/solder pad


Choose the pad to meet your requirements.

SUB-D/D-type connector




trafo or inductor-neosid


Screw terminal connectors

con-wago, con-wago500 or con-wago508

Screw block terminal, 2.54 and 5mm pitch

DC power plugs


Used for mains adapters

sumber: http://www.ianstedman.co.uk/Technical/StartingwithEagleCAD/startingwitheaglecad.html


My own screen captures, free to use and share as needed:




Dari: http://datasheet.octopart.com/C1206C106K4RACTU-Kemet-datasheet-5313890.pdf


Dari: http://media.digikey.com/



Written by sunupradana

August 1, 2011 at 5:25 pm