Multi-Turn Wire-Wound Potentiometer

Series SMT
   
                  

World's Smallest Multi-Turn Potentiometer

  

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- 3, 5 and 10 Turn Versions

 
- High Resolution and Repeatability
 
- All Metal Construction
 

Since 1965, the SMT series has proven to be the precision potentiometer of choice for limited space applications where long life and high accuracy are required. A wide range of options are available to optimize the potentiometer for a given application.

Electrical Specifications

SMT 10/3

SMT 10/5

SMT 10/10

Resistance Values         (ohms)

 20 to 20K 20...50k

Resistance Tolerance  (std.)

± 3%

Resistance Tolerance (best)

± 1%

Linearity Tolerance     (standard)

>2k; ±0.3%     <=2k; ±0.5%

Electrical Angle ±5º

 1080º 1800º 3600º

End Resistance

 < 0.05%

Insulation Resistance

 100 Mohms at 500 VDC

Dielectric Strength

 500 VAC, 1 minute

Noise

 <100 ohms ENR

Power @ +40ºC              (W)

 1 1.5

Mechanical Specifications

Number of Turns

 3 5 10

Mechanical Angle +15º, -0º

 1080º 1800º 3600º

Torque: Start/Run             (Ncm)

 0.5 

Stopper Strength              (Ncm)

 10

Max. Axial Play of Shaft    (mm)

 0.2

Max. Radial Play of Shaft  (mm)

 0.06

Typical Life (# of turns)

 600,000 1 million 2 million

Bearing

 sleeve

Weight                              (g)

 20

Environmental Specifications

Operating Temperature

 -55ºC to +105ºC

Vibration

 15 g / 10Hz to 2,000 Hz

Shock

 50 g / 11ms 

IP Protection Grade

 IP40 (IP54 optional)

Standards

 MIL-R-12934

Materials

Housing

Aluminum

Bushing

Metal

Shaft

 Stainless steel

Terminals

 Gold plated  

Resolution Chart

Resistance value (ohms)

Resolution (%)

Temperature coefficient

of wire (±...ppm/K)
SMT 10/3 SMT 10/5 SMT 10/10
100 0.170 0.133 0.083 80
200 0.150 0.162 0.067 80 / 20
500 0.190 0.120 0.074 20
1k 0.160 0.095 0.059 20
2k 0.100 0.075 0.047 20
5k 0.090 0.055 0.035 20
10k 0.070 0.043 0.027 20
20k 0.050 0.034 0.022 20
50k - 0.025 0.016 20
100k - - 0.012 20

Dimensions (mm)

Options

- Rear shaft  (Ø8mm x 10mm)

 - Sealed housing - Tighter tolerances

- Special resistance values

 - Special shaft machining - Servo mount
  
P3 America, Inc.
3089C Clairemont Dr. # 363 - San Diego, Ca. 92117
Phone: (858) 277-1420      Fax: (858) 225-0439
www.p3america.com

© P3 America, Inc. 2004 - 2006. All Rights Reserved