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What does the minus sign mean in measurements in datasheet footprint drawings?
Does this product page contradict the corresponding datasheet?How these circuit diagrams in the datasheet was made?What does Limit at Min to Max values in datasheet means?What does “V.A.” mean in datasheet dimensions?Determining type of the transistors of an IC from its data-sheetCircuit breaker trip timingDC-DC Converter Datasheet - What does “Temperature Coefficient” Refer to?Position sensor PS732 feinmetallResources for finding thermal impedances for common IC packagesWhat does this value mean in a BJT datasheet?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
$begingroup$
I have seen this more than once where there is a measurement such as "4-0.7". In this context, it clearly does not mean 4 to 0.7 mm so what does it mean. See the attached picture:
Link to datasheet: https://www.ckswitches.com/media/2780/pts526.pdf
datasheet footprint drawing
asked Jul 25 at 19:09
Emil ErikssonEmil Eriksson
2152 silver badges8 bronze badges
$endgroup$
add a comment |
$begingroup$
I have seen this more than once where there is a measurement such as "4-0.7". In this context, it clearly does not mean 4 to 0.7 mm so what does it mean. See the attached picture:
Link to datasheet: https://www.ckswitches.com/media/2780/pts526.pdf
datasheet footprint drawing
asked Jul 25 at 19:09
Emil ErikssonEmil Eriksson
2152 silver badges8 bronze badges
$endgroup$
2
$begingroup$
Not confident enough to make this a proper answer but my guess would be that it's just like the ±, just without the +; it's specified to be no larger than 4 mm, and no smaller than 3.3 mm.
$endgroup$
– Hearth
Jul 25 at 19:14
2
$begingroup$
@Hearth Nah, it just means 4 pads at 0.7 mm. The long dimension is 1 mm, so it cannot be anything else.
$endgroup$
– user110971
Jul 25 at 19:24
$begingroup$
How do you know it's a minus sign and not a hyphen, em dash or en dash?
$endgroup$
– Spehro Pefhany
Jul 25 at 21:54
$begingroup$
@user110971 Now I feel dumb! Yeah, that's pretty obvious in hindsight.
$endgroup$
– Hearth
Jul 25 at 23:17
add a comment |
$begingroup$
I have seen this more than once where there is a measurement such as "4-0.7". In this context, it clearly does not mean 4 to 0.7 mm so what does it mean. See the attached picture:
Link to datasheet: https://www.ckswitches.com/media/2780/pts526.pdf
datasheet footprint drawing
asked Jul 25 at 19:09
Emil ErikssonEmil Eriksson
2152 silver badges8 bronze badges
$endgroup$
I have seen this more than once where there is a measurement such as "4-0.7". In this context, it clearly does not mean 4 to 0.7 mm so what does it mean. See the attached picture:
Link to datasheet: https://www.ckswitches.com/media/2780/pts526.pdf
datasheet footprint drawing
datasheet footprint drawing
asked Jul 25 at 19:09
Emil ErikssonEmil Eriksson
2152 silver badges8 bronze badges
asked Jul 25 at 19:09
Emil ErikssonEmil Eriksson
2152 silver badges8 bronze badges
asked Jul 25 at 19:09
Emil ErikssonEmil Eriksson
2152 silver badges8 bronze badges
asked Jul 25 at 19:09
Emil ErikssonEmil Eriksson
2152 silver badges8 bronze badges
asked Jul 25 at 19:09
Emil ErikssonEmil Eriksson
2152 silver badges8 bronze badges
2152 silver badges8 bronze badges
2
$begingroup$
Not confident enough to make this a proper answer but my guess would be that it's just like the ±, just without the +; it's specified to be no larger than 4 mm, and no smaller than 3.3 mm.
$endgroup$
– Hearth
Jul 25 at 19:14
2
$begingroup$
@Hearth Nah, it just means 4 pads at 0.7 mm. The long dimension is 1 mm, so it cannot be anything else.
$endgroup$
– user110971
Jul 25 at 19:24
$begingroup$
How do you know it's a minus sign and not a hyphen, em dash or en dash?
$endgroup$
– Spehro Pefhany
Jul 25 at 21:54
$begingroup$
@user110971 Now I feel dumb! Yeah, that's pretty obvious in hindsight.
$endgroup$
– Hearth
Jul 25 at 23:17
add a comment |
2
$begingroup$
Not confident enough to make this a proper answer but my guess would be that it's just like the ±, just without the +; it's specified to be no larger than 4 mm, and no smaller than 3.3 mm.
$endgroup$
– Hearth
Jul 25 at 19:14
2
$begingroup$
@Hearth Nah, it just means 4 pads at 0.7 mm. The long dimension is 1 mm, so it cannot be anything else.
$endgroup$
– user110971
Jul 25 at 19:24
$begingroup$
How do you know it's a minus sign and not a hyphen, em dash or en dash?
$endgroup$
– Spehro Pefhany
Jul 25 at 21:54
$begingroup$
@user110971 Now I feel dumb! Yeah, that's pretty obvious in hindsight.
$endgroup$
– Hearth
Jul 25 at 23:17
2
2
$begingroup$
Not confident enough to make this a proper answer but my guess would be that it's just like the ±, just without the +; it's specified to be no larger than 4 mm, and no smaller than 3.3 mm.
$endgroup$
– Hearth
Jul 25 at 19:14
$begingroup$
Not confident enough to make this a proper answer but my guess would be that it's just like the ±, just without the +; it's specified to be no larger than 4 mm, and no smaller than 3.3 mm.
$endgroup$
– Hearth
Jul 25 at 19:14
2
2
$begingroup$
@Hearth Nah, it just means 4 pads at 0.7 mm. The long dimension is 1 mm, so it cannot be anything else.
$endgroup$
– user110971
Jul 25 at 19:24
$begingroup$
@Hearth Nah, it just means 4 pads at 0.7 mm. The long dimension is 1 mm, so it cannot be anything else.
$endgroup$
– user110971
Jul 25 at 19:24
$begingroup$
How do you know it's a minus sign and not a hyphen, em dash or en dash?
$endgroup$
– Spehro Pefhany
Jul 25 at 21:54
$begingroup$
How do you know it's a minus sign and not a hyphen, em dash or en dash?
$endgroup$
– Spehro Pefhany
Jul 25 at 21:54
$begingroup$
@user110971 Now I feel dumb! Yeah, that's pretty obvious in hindsight.
$endgroup$
– Hearth
Jul 25 at 23:17
$begingroup$
@user110971 Now I feel dumb! Yeah, that's pretty obvious in hindsight.
$endgroup$
– Hearth
Jul 25 at 23:17
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
It looks to me that it means four 0.7 mm wide pads.
Another way of writing it would be 0.7 (4 places)
answered Jul 25 at 19:18
Peter BennettPeter Bennett
39.1k1 gold badge31 silver badges72 bronze badges
$endgroup$
$begingroup$
Yes. It has to be that, because the tolerances are given either by: $ 0,8 pm 0,1 $ or $ 0,05^0_-0,05$. Note the comma instead of the period :-)
$endgroup$
– Huisman
Jul 25 at 19:22
$begingroup$
If you look at page 3, top-left, there's a measurement that reads "4-0,45±0,05". I just wanted to mention that as it furthers your statement.
$endgroup$
– C. Lange
Jul 25 at 19:23
1
$begingroup$
It's too ambiguous to be a standard notation... isn't it?
$endgroup$
– Eugene Sh.
Jul 25 at 19:25
1
$begingroup$
@EugeneSh.: The drawing shows the pads as 1 mm long and 3.7 mm apart vertically, so they can't be 4 mm wide, if the drawing is anywhere near drawn to scale.
$endgroup$
– Peter Bennett
Jul 25 at 19:32
1
$begingroup$
@PeterBennett Engineering drawings should not rely on the reader's visual estimation skills.
$endgroup$
– Eugene Sh.
Jul 25 at 19:44
|
show 2 more comments
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1 Answer
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1 Answer
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$begingroup$
It looks to me that it means four 0.7 mm wide pads.
Another way of writing it would be 0.7 (4 places)
answered Jul 25 at 19:18
Peter BennettPeter Bennett
39.1k1 gold badge31 silver badges72 bronze badges
$endgroup$
$begingroup$
Yes. It has to be that, because the tolerances are given either by: $ 0,8 pm 0,1 $ or $ 0,05^0_-0,05$. Note the comma instead of the period :-)
$endgroup$
– Huisman
Jul 25 at 19:22
$begingroup$
If you look at page 3, top-left, there's a measurement that reads "4-0,45±0,05". I just wanted to mention that as it furthers your statement.
$endgroup$
– C. Lange
Jul 25 at 19:23
1
$begingroup$
It's too ambiguous to be a standard notation... isn't it?
$endgroup$
– Eugene Sh.
Jul 25 at 19:25
1
$begingroup$
@EugeneSh.: The drawing shows the pads as 1 mm long and 3.7 mm apart vertically, so they can't be 4 mm wide, if the drawing is anywhere near drawn to scale.
$endgroup$
– Peter Bennett
Jul 25 at 19:32
1
$begingroup$
@PeterBennett Engineering drawings should not rely on the reader's visual estimation skills.
$endgroup$
– Eugene Sh.
Jul 25 at 19:44
|
show 2 more comments
$begingroup$
It looks to me that it means four 0.7 mm wide pads.
Another way of writing it would be 0.7 (4 places)
answered Jul 25 at 19:18
Peter BennettPeter Bennett
39.1k1 gold badge31 silver badges72 bronze badges
$endgroup$
$begingroup$
Yes. It has to be that, because the tolerances are given either by: $ 0,8 pm 0,1 $ or $ 0,05^0_-0,05$. Note the comma instead of the period :-)
$endgroup$
– Huisman
Jul 25 at 19:22
$begingroup$
If you look at page 3, top-left, there's a measurement that reads "4-0,45±0,05". I just wanted to mention that as it furthers your statement.
$endgroup$
– C. Lange
Jul 25 at 19:23
1
$begingroup$
It's too ambiguous to be a standard notation... isn't it?
$endgroup$
– Eugene Sh.
Jul 25 at 19:25
1
$begingroup$
@EugeneSh.: The drawing shows the pads as 1 mm long and 3.7 mm apart vertically, so they can't be 4 mm wide, if the drawing is anywhere near drawn to scale.
$endgroup$
– Peter Bennett
Jul 25 at 19:32
1
$begingroup$
@PeterBennett Engineering drawings should not rely on the reader's visual estimation skills.
$endgroup$
– Eugene Sh.
Jul 25 at 19:44
|
show 2 more comments
$begingroup$
It looks to me that it means four 0.7 mm wide pads.
Another way of writing it would be 0.7 (4 places)
answered Jul 25 at 19:18
Peter BennettPeter Bennett
39.1k1 gold badge31 silver badges72 bronze badges
$endgroup$
It looks to me that it means four 0.7 mm wide pads.
Another way of writing it would be 0.7 (4 places)
answered Jul 25 at 19:18
Peter BennettPeter Bennett
39.1k1 gold badge31 silver badges72 bronze badges
answered Jul 25 at 19:18
Peter BennettPeter Bennett
39.1k1 gold badge31 silver badges72 bronze badges
answered Jul 25 at 19:18
Peter BennettPeter Bennett
39.1k1 gold badge31 silver badges72 bronze badges
answered Jul 25 at 19:18
Peter BennettPeter Bennett
39.1k1 gold badge31 silver badges72 bronze badges
39.1k1 gold badge31 silver badges72 bronze badges
$begingroup$
Yes. It has to be that, because the tolerances are given either by: $ 0,8 pm 0,1 $ or $ 0,05^0_-0,05$. Note the comma instead of the period :-)
$endgroup$
– Huisman
Jul 25 at 19:22
$begingroup$
If you look at page 3, top-left, there's a measurement that reads "4-0,45±0,05". I just wanted to mention that as it furthers your statement.
$endgroup$
– C. Lange
Jul 25 at 19:23
1
$begingroup$
It's too ambiguous to be a standard notation... isn't it?
$endgroup$
– Eugene Sh.
Jul 25 at 19:25
1
$begingroup$
@EugeneSh.: The drawing shows the pads as 1 mm long and 3.7 mm apart vertically, so they can't be 4 mm wide, if the drawing is anywhere near drawn to scale.
$endgroup$
– Peter Bennett
Jul 25 at 19:32
1
$begingroup$
@PeterBennett Engineering drawings should not rely on the reader's visual estimation skills.
$endgroup$
– Eugene Sh.
Jul 25 at 19:44
|
show 2 more comments
$begingroup$
Yes. It has to be that, because the tolerances are given either by: $ 0,8 pm 0,1 $ or $ 0,05^0_-0,05$. Note the comma instead of the period :-)
$endgroup$
– Huisman
Jul 25 at 19:22
$begingroup$
If you look at page 3, top-left, there's a measurement that reads "4-0,45±0,05". I just wanted to mention that as it furthers your statement.
$endgroup$
– C. Lange
Jul 25 at 19:23
1
$begingroup$
It's too ambiguous to be a standard notation... isn't it?
$endgroup$
– Eugene Sh.
Jul 25 at 19:25
1
$begingroup$
@EugeneSh.: The drawing shows the pads as 1 mm long and 3.7 mm apart vertically, so they can't be 4 mm wide, if the drawing is anywhere near drawn to scale.
$endgroup$
– Peter Bennett
Jul 25 at 19:32
1
$begingroup$
@PeterBennett Engineering drawings should not rely on the reader's visual estimation skills.
$endgroup$
– Eugene Sh.
Jul 25 at 19:44
$begingroup$
Yes. It has to be that, because the tolerances are given either by: $ 0,8 pm 0,1 $ or $ 0,05^0_-0,05$. Note the comma instead of the period :-)
$endgroup$
– Huisman
Jul 25 at 19:22
$begingroup$
Yes. It has to be that, because the tolerances are given either by: $ 0,8 pm 0,1 $ or $ 0,05^0_-0,05$. Note the comma instead of the period :-)
$endgroup$
– Huisman
Jul 25 at 19:22
$begingroup$
If you look at page 3, top-left, there's a measurement that reads "4-0,45±0,05". I just wanted to mention that as it furthers your statement.
$endgroup$
– C. Lange
Jul 25 at 19:23
$begingroup$
If you look at page 3, top-left, there's a measurement that reads "4-0,45±0,05". I just wanted to mention that as it furthers your statement.
$endgroup$
– C. Lange
Jul 25 at 19:23
1
1
$begingroup$
It's too ambiguous to be a standard notation... isn't it?
$endgroup$
– Eugene Sh.
Jul 25 at 19:25
$begingroup$
It's too ambiguous to be a standard notation... isn't it?
$endgroup$
– Eugene Sh.
Jul 25 at 19:25
1
1
$begingroup$
@EugeneSh.: The drawing shows the pads as 1 mm long and 3.7 mm apart vertically, so they can't be 4 mm wide, if the drawing is anywhere near drawn to scale.
$endgroup$
– Peter Bennett
Jul 25 at 19:32
$begingroup$
@EugeneSh.: The drawing shows the pads as 1 mm long and 3.7 mm apart vertically, so they can't be 4 mm wide, if the drawing is anywhere near drawn to scale.
$endgroup$
– Peter Bennett
Jul 25 at 19:32
1
1
$begingroup$
@PeterBennett Engineering drawings should not rely on the reader's visual estimation skills.
$endgroup$
– Eugene Sh.
Jul 25 at 19:44
$begingroup$
@PeterBennett Engineering drawings should not rely on the reader's visual estimation skills.
$endgroup$
– Eugene Sh.
Jul 25 at 19:44
|
show 2 more comments
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2
$begingroup$
Not confident enough to make this a proper answer but my guess would be that it's just like the ±, just without the +; it's specified to be no larger than 4 mm, and no smaller than 3.3 mm.
$endgroup$
– Hearth
Jul 25 at 19:14
2
$begingroup$
@Hearth Nah, it just means 4 pads at 0.7 mm. The long dimension is 1 mm, so it cannot be anything else.
$endgroup$
– user110971
Jul 25 at 19:24
$begingroup$
How do you know it's a minus sign and not a hyphen, em dash or en dash?
$endgroup$
– Spehro Pefhany
Jul 25 at 21:54
$begingroup$
@user110971 Now I feel dumb! Yeah, that's pretty obvious in hindsight.
$endgroup$
– Hearth
Jul 25 at 23:17