Skip to main content
Electrical Engineering

Return to Question

Became Hot Network Question
added 15 characters in body; edited title
Source Link
ocrdu
ocrdu
  • 9.3k
  • 23
  • 32
  • 42

tolerance Tolerance of board to board-to-board headers

I am designing a 2 board , thetwo boards. The bottom one is the power board that contains power switches on IMS (metal clad-clad board)  , while the board on the top board is the logic board (4-layer FR4). boardBoard to board height is about 0.5".

theThe connection of signals from Toptop to bottom is through a 2.0mm0 mm dual row pin header.

  • the number of headers is about 20pcs20 pcs of 2x2 arranged in 16mma 16 mm x 20mm20 mm grid.
  • On the bottom board the only option is an SMD male Pin Headerpin header.
  • On the logic board I have multiple options: TH on the bottom layer  , or SMD on bottom layer or SMD on the top layer with holes (the female header is made for variable board heightheights).

Problem: Since there is a high number of connections I am worried about soldering tolerance which might cause the 2-boardtwo boards to not mate correctlyincorrectly.

Question1: Question 1: which of the 3three options offor female headers would be more suitable ( II am thinking SMD is better since it has less play during soldering).

Question2: Question 2: If no solution would give the required tolerance for all the headers to mate  , should I consider reducing the number of headers ? (knowing that the layout and performance will be worse)?

Any reference or guidance to where such information can be learned is highly appreciated.

tolerance of board to board headers

I am designing a 2 board , the bottom is power board that contains power switches on IMS (metal clad board)  , while the board on the top is logic board (4-layer FR4). board to board height is about 0.5".

the connection of signals from Top to bottom is through 2.0mm dual row pin header.

  • the number of headers is about 20pcs of 2x2 arranged in 16mm x 20mm grid.
  • On the bottom board the only option is SMD male Pin Header.
  • On logic board I have multiple options TH on bottom layer  , or SMD on bottom layer or SMD on top layer with holes (the female header made for variable board height)

Problem: Since there is a high number of connections I am worried about soldering tolerance which might cause the 2-board to not mate correctly.

Question1: which of the 3 options of female headers would be more suitable ( I am thinking SMD is better since it has less play during soldering).

Question2: If no solution would give the required tolerance for all the headers to mate  , should I consider reducing the number of headers ? (knowing that the layout and performance will be worse)

Any reference or guidance to where such information can be learned is highly appreciated.

Tolerance of board-to-board headers

I am designing two boards. The bottom one is the power board that contains power switches on IMS (metal-clad board), while the top board is the logic board (4-layer FR4). Board to board height is about 0.5".

The connection of signals from top to bottom is through a 2.0 mm dual row pin header.

  • the number of headers is about 20 pcs of 2x2 arranged in a 16 mm x 20 mm grid.
  • On the bottom board the only option is an SMD male pin header.
  • On the logic board I have multiple options: TH on the bottom layer, or SMD on bottom layer or SMD on the top layer with holes (the female header is made for variable board heights).

Since there is a high number of connections I am worried about soldering tolerance which might cause the two boards to mate incorrectly.

Question 1: which of the three options for female headers would be more suitable (I am thinking SMD is better since it has less play during soldering).

Question 2: If no solution would give the required tolerance for all the headers to mate, should I consider reducing the number of headers (knowing that the layout and performance will be worse)?

Any reference or guidance to where such information can be learned is highly appreciated.

Source Link
Eng Sam
Eng Sam
  • 489
  • 3
  • 12

tolerance of board to board headers

I am designing a 2 board , the bottom is power board that contains power switches on IMS (metal clad board) , while the board on the top is logic board (4-layer FR4). board to board height is about 0.5".

the connection of signals from Top to bottom is through 2.0mm dual row pin header.

  • the number of headers is about 20pcs of 2x2 arranged in 16mm x 20mm grid.
  • On the bottom board the only option is SMD male Pin Header.
  • On logic board I have multiple options TH on bottom layer , or SMD on bottom layer or SMD on top layer with holes (the female header made for variable board height)

Problem: Since there is a high number of connections I am worried about soldering tolerance which might cause the 2-board to not mate correctly.

Question1: which of the 3 options of female headers would be more suitable ( I am thinking SMD is better since it has less play during soldering).

Question2: If no solution would give the required tolerance for all the headers to mate , should I consider reducing the number of headers ? (knowing that the layout and performance will be worse)

Any reference or guidance to where such information can be learned is highly appreciated.