RoboteQ AX3500 Mounting Considerations, Thermal Considerations, Mechanical Specifications

Mechanical Specifications

4.20"

(106.7mm)

	6.75" (174.0mm)
0.40" (10.15mm)			0.45" (11.4mm)
	0.160" (4.0mm)
0.15" (3.8mm)			0.15" (3.8mm)
0.15"	0.120" (3.0mm)		0.15"
			(3.8mm)
(3.8mm)
1.25"			0.35" (8.9mm)
(31.75mm)			0.3" (5.1mm)
			0.3" (5.1mm)
			0.3" (5.1mm)
(33.0mm)	(5.08mm)2.0"	(25.7mm)1.01"	0.2" (5.1mm)
			0.3" (5.08mm)
			0.2" (5.1mm)
			0.6" (10.11mm)
1.63"
	1.09"	(3.8mm)	0.35" (8.9mm)
0.15"			0.15"
(3.8mm)			(3.8mm)
0.15" (3.8mm)	4.83" (174.0mm)		0.15" (3.8mm)
			0.45" (11.4 mm)

2.10"

(53.35mm)

FIGURE 115. AX3500 top view and dimensions

Mounting Considerations

The AX3500’s heatsink is located at the bottom of the board. This requires therefore that the board be mounted with spacers that are at minimum 0.6” (15mm).

0.6" (15mm) or longer spacer

FIGURE 116. Use spacers to provide clearance for heatsink

Thermal Considerations

The AX3500 is equipped with an aluminum heatsink beneath the power transistors, ensur- ing sufficient heat dissipation for operation without a fan in most applications.

When mounting the board, and if current is expected to be above 30A on average, ensure that there can be a natural or forced convection flow to remove the heat. Mounting the

204 AX3500 Motor Controller User’s Manual Version 1.9b. June 1, 2007