Elmo DRA- X/YY User Manual

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3.3.2 Dragonfly 
Dimensions 
 
Figure  3-2: Dragonfly Dimensions 
 
3.4 Mounting 
3.4.1 Butterfly 
The Butterfly was designed for mounting on a printed circuit board (PCB). It is connected by 
2mm pitch 0.51 mm square pins. When designing the Butterfly into a device, be sure to leave 
about 1 cm (0.4") outward from the heatsink to enable free air convection around the Butterfly. 
We recommend that the Butterfly be soldered directly to the board. Alternatively, the Butterfly 
can be attached to socket connectors mounted on the PCB. If the PCB is enclosed in a metal 
chassis, we recommend that the Butterfly be screw-mounted to it as well to help with heat 
dissipation. The Butterfly has screw-mount holes on each corner of the heatsink for this 
purpose. 
3.4.2 Dragonfly 
The Dragonfly was designed for mounting on a printed circuit board (PCB). It is connected by 
2mm pitch 0.51 mm square pins. When designing the Dragonfly into a device, be sure to leave 
about 1 cm (0.4") outward from the lower board to enable free air convection around the 
Dragonfly. We recommend that the Dragonfly be soldered directly to the board. Alternatively, 
the Dragonfly can be attached to socket connectors mounted on the PCB.  
Note: Elmo recommends you leave approximately 1 cm (0.4 in) of space on the side opposite 
the terminals to allow for free air convection. 
Dragonfly/ Butterfly Installation Guide 
Installation 
MAN-DRBUIG (Ver. 1.1) 
 
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