Referring to a DB107 datasheet: http://pdf.datasheetcatalog.com/datasheet_pdf/mcc/DB101_to_DB107.pdf
The pin spacing is 200mil between ~/~ and +/- (dimension G) and 300mil between ~/+ and ~/- (dimension C). The breadbord component has this spacing but in the PCB footprint it is the other way around.
Unfortunately a DB107 does fit in the PCB footprint if it is rotated by 90° so the error is hard to notice, and with the wrong pin connections a circuit can easily be damaged by pulses of reverse polarity when it is connected to AC.
Referring to a DB107 datasheet: http://pdf.datasheetcatalog.com/datasheet_pdf/mcc/DB101_to_DB107.pdf The pin spacing is 200mil between ~/~ and +/- (dimension G) and 300mil between ~/+ and ~/- (dimension C). The breadbord component has this spacing but in the PCB footprint it is the other way around. Unfortunately a DB107 does fit in the PCB footprint if it is rotated by 90° so the error is hard to notice, and with the wrong pin connections a circuit can easily be damaged by pulses of reverse polarity when it is connected to AC.