National Aperture, Inc. 6mm Motor Connection Specifications National Aperture, Inc.
6mm Motor
Connection Specifications
Download a PDF version of the Stage Catalog
Motor Connector:
Motor Type: MTR-6-50E-4.5v
Connector Type: 9 pin Mini-Din
Note: Mating connectors may be purchased from National Aperture, Inc
9 pin motor
Electrical Specifications:
MTR-6E-4.5v
Supply Voltage Nom. (volts) 4.5
Armature Resistance (Ohm) ±12% 37.7
Maximum Power Output (watts) * 0.11
Maximum Efficiency (%)* 50
No Load Speed (RPM) ±12% * 19,500
Friction Torque@no load speed(mNm) 0.02
No Load Current (mA) ±50%* 10
Stall Torque (mNm)* 0.22
Velocity Constant (RPM/volt) 4,727
Back EMF Constant (mV/RPM) 0.212
Torque Constant (mNm/A) 2.02
Armature Inductance (µH) 95
* Specified at nominal supply voltage
** Specified with shaft diameter = 1.5mm at no-load speed
Encoder Specifications:
MTR-6E-4.5v
Supply Voltage 2.7 to 3.3 vdc
Maximum Supply Voltage 7 vdc
Operating Current 85mA Nom@3vdc
Signal Phase Shift 90°
Maximum Signal Frequency up to 35 kHz
Operating Temperature Range -30°C to +85243C (-22°F to +185°F)
Output Signal Type 2 channel square wave
Signal Rise Time 3µs
Phase Relationship Ch. B leads Ch. A when motor rotation is clockwise as viewed from shaft end.
Pulses Per Revolution 50 (2 channels)
Quadrature 200 encoder counts
Output Signal TTL compatible
Mechanical Specifications (Motor):
MTR-6E-4.5v
Mechanical Time Constant (ms)* 9
Armature Inertia (g-cm2)* 0.01
Angular Acceleration (x103Rads/s2) 221
Rotor temperature range (°C) -30 to +85
Axial Play 0.15mm (0.0059 inches)
Bearing Play (measured at bearing)
Axial (mm) less than or equal to 0.15
Radial (mm) less than or equal to 0.03
Thermal Resistances (C°/W)
Rotor to Case 35
Case to Ambient 76
Max Shaft Load
Radial at 1.5mm from flange @ 3000RPM (N) 0.5
Axial @ standstill (N) 20
Weight 2 gram (0.070547924 ounces)
Planetary Gearheads recommended input speed (max) <8000 RPM
* Specified at nominal supply voltage
** Specified with shaft diameter = 1.5mm at no-load speed
Contact NAI
The information contained in this data sheet is subject to change without notice.
Critical dimensions or specifications should be verified with our technical support staff.
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©Copyright 1996-2012 National Aperture, Inc. - All Rights Reserved
MicroMini ™ Stage is a trademark of National Aperture, Inc.
National Aperture, Inc. • 16 Northwestern Drive • Salem, NH 03079-4810
800-360-4598 • 603-893-7393 • FAX 603-893-7857