PCB-RULER-12INCH

PCB-RULER-12INCH Datasheet

PCB-RULER-ND Metric Side

Part	Datasheet
PCB-RULER-12INCH	PCB-RULER-12INCH (pdf)

PDF Datasheet Preview
PCB-RULER-ND Metric Side 12 inch ~30.5cm Our aim was to create a reliable and accurate PCB layout reference tool. We tried to include as many useful features as possible. x 12” 31.75mm x 30.48cm ° Thick - 1oz Copper ~35µm ° ENIG finish Electroless Nickel Immersion Gold ° Weight ~ 1.16oz/32.9gm Hole examples with 0.5mm thick annular rings, so the 1mm diameter hole has a 2mm diameter annular ring. Footprints of the eight most popular IC packages used by our manufacturers including a few i.e. SOT-23-5 and SC-70-5 also cover the footprints for the 3-lead versions Diameter of 7-strand wire per the company Alpha Wire. 0.5mm annular rings The trace width examples, on this side, were positioned on the edge so they could be placed over a PCB trace to estimate what width was used. A reminder that we offer support every hour of every day via phone, chat, or email. Not from the 80’s? com/woworlr Always clean your boards. Pitch examples The disclaimer we aimed for perfect, but we have humans working here and there may be errors. The heights of these examples were adjusted to be exactly as listed. The Stroke font thicknesses shown are calculated height/7 or /10, so 2mm/7 =0.286mm thick & 2/10=0.2mm. This ampacity chart shows the maximum current an external trace width in millimeters can pass and only raise its temperature by the listed value in centigrade. As noted, for internal traces, multiply the trace width by to carry the same amount of current. When calculating per IPC-2221 A , the copper thicknesses listed on the MIL side were used. The metric hole examples are centered the ruler should hang straight when hung. Annular rings = 0.6mm thick. PCB-RULER-ND MIL Side A table showing the thickness conversion from oz of copper to mils and µm. The link to the app note we used for this formula MT-094 Same as above, in MILs 12 inch ~30.5cm Transistor symbol references Many customers use these services daily, however others have no idea we could help them with these services. Some not listed are custom fan connections, heatsinks, transformers, power supplies, die-cutting of adhesives & thermal interface materials. The hole examples on the MIL side were made without annular rings for contrast. Common op-amp configurations Same as above, in MILs A bit of geek humor. * Again, we are here for you, always. Fiducial with copper vs silk The trace width examples were made with both MIL & MM on both sides for ease of comparison between the two. Current Ratings for Alpha Cables The maximum continuous current rating for a cable is limited by conductor size, number of conductors contained within the cable, maximum temperature rating of the cable, and environmental conditions such as ambient temperature and air To use the current capacity chart, determine conductor size, temperature rating, and number of conductors from the applicable product description for the cable of interest.

PDF Datasheet Preview

PCB-RULER-ND Metric Side
12 inch ~30.5cm

Our aim was to create a reliable and accurate PCB layout reference tool. We tried to include as many useful features as possible.
x 12” 31.75mm x 30.48cm ° Thick - 1oz Copper ~35µm ° ENIG finish Electroless Nickel Immersion Gold ° Weight ~ 1.16oz/32.9gm

Hole examples with 0.5mm thick annular rings, so the 1mm diameter hole has a 2mm diameter annular ring.

Footprints of the eight most popular IC packages used by our manufacturers including a few
i.e. SOT-23-5 and SC-70-5 also cover the footprints for the 3-lead versions

Diameter of 7-strand wire per the company Alpha Wire.
0.5mm annular rings

The trace width examples, on this side, were positioned on the edge so they could be placed over a PCB trace to estimate what width was used.

A reminder that we offer support every hour of every day
via phone, chat, or email.

Not from the 80’s? com/woworlr Always clean your boards.

Pitch examples

The disclaimer we aimed for perfect, but we have humans working here and there may be errors.

The heights of these examples were adjusted to be exactly as listed. The Stroke font thicknesses shown are calculated height/7 or /10, so 2mm/7
=0.286mm thick & 2/10=0.2mm.

This ampacity chart shows the maximum current an external trace width in millimeters can pass and only raise its temperature by the listed value in centigrade.

As noted, for internal traces, multiply the trace width by to carry the same amount of current.

When calculating per IPC-2221 A , the copper thicknesses listed on the MIL side were used.

The metric hole examples are centered the ruler should hang straight when hung.

Annular rings = 0.6mm thick.

PCB-RULER-ND MIL Side

A table showing the thickness conversion from oz of copper to
mils and µm.

The link to the app note we used for this formula MT-094

Same as above, in MILs
12 inch ~30.5cm

Transistor symbol references

Many customers use these services daily, however others have no idea we could help them with these services. Some not listed are custom fan connections, heatsinks,
transformers, power supplies, die-cutting of adhesives & thermal interface materials.

The hole examples on the MIL side were made without
annular rings for contrast.

Common op-amp configurations

Same as above, in MILs

A bit of geek humor. *

Again, we are here for you, always.

Fiducial with copper vs silk

The trace width examples were made with both MIL & MM on both sides for ease of comparison between the two.

Current Ratings for Alpha Cables

The maximum continuous current rating for a cable is limited by conductor size, number of conductors contained within the cable, maximum temperature rating of the cable, and environmental conditions such as ambient temperature and air To use the current capacity chart, determine conductor size, temperature rating, and number of conductors from the applicable product description for the cable of interest.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived PCB-RULER-12INCH Datasheet file may be downloaded here without warranties.

Datasheet ID: PCB-RULER-12INCH 509470