Series REC 34 L

www.vishay.com

Vishay Sfernice

Revision: 26-Mar-15

1

Document Number: 54019

For technical questions, contact: sferprecisionpot@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Precision Linear Transducers, Conductive Plastic,

up to 450 mm

The 34 L is a compact, accurate and adaptable motion

transducer for both industrial and military markets.

FEATURES

• Measurement range 25 mm to 450 mm

• High accuracy ± 1 % down to ± 0.025 %

• Essentially infinite resolution

• Long life

• Sealed on request

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

Note

• Nothing stated herein shall be construed as a guarantee of quality or durability.

QUICK REFERENCE DATA

Sensor type

LINEAR, conductive plastic

Output type

Wires

Market appliance

Professional

Dimensions

L x 19 mm dia. (with L = TET + 63 mm)

ELECTRICAL SPECIFICATIONS

Theoretical electrical travel (TET = E)

in increments of 25 mm

25 mm

450 mm

Independent linearity (over TET)



On request

 ± 1 % -  ± 0.1 %

 ± 0.05 % for E  100 mm

 ± 0.025 % for E  200 mm

Actual electrical travel (AET)

See table 1

Ohmic values (RT)

From 400

/cm to 2 k/cm

Resistance tolerance at 20 °C

± 20 %

Repeatability

 0.01 %

Maximum power rating

0.05 W/cm at 70 °C, 0 W at 125 °C

Wiper current

Recommended: a few μA - 1 mA max. (continuous)

Load resistance

Minimum 103 x RT

Number of tracks

1; on request 2

Insulation resistance

 1000 M, 500 V

DC

Dielectric strength

 750 V

RMS, 50 Hz

MECHANICAL SPECIFICATIONS

Mechanical travel

TET + 2 mm min.

Housing

Anodized aluminum

Operating force

On Request

0.35 N typical

(standard model)

2.50 N typical

(sealed model)

Shaft (free rotation)

Stainless steel

Termination

On request

3 wires PTFE AWG-30 L = 300 mm

cable or connector

Wiper

Precious metal multifinger

Sealing

IP65 on request

PERFORMANCE

Operating life

25 million cycles typical/1 Hz/T° = 20 °C ± 5 °C/80 % TET

Temperature range

-55 °C to +125 °C

Sine vibration on 3 axes

1.5 mm peak to peak or 15 g - 10 Hz - 2000 Hz

Mechanical shocks on 3 axes

50 g - 11 ms - half sine