POHR36, POHR44, POTH44, POTH50, POTH76

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Vishay MCB

Revision: 02-Mar-17

1

Document Number: 32521

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

Single-Turn Continuous Rotation Analog Displacement Sensors

FEATURES

• Conductive plastic potentiometer technology, infinite

resolution

• Servo mount anodized light alloy housing

• Precious metal contacts

• Stainless steel shaft and bearings

• Applicable standards: NFC 93255, MIL R39023

QUICK REFERENCE DATA

Sensor type

ROTATIONAL, conductive plastic

Output type

Output by turrets

Market appliance

Industrial, avionics

Dimensions

Ø 36, Ø 44, Ø 50, Ø 76

ELECTRICAL SPECIFICATIONS

PARAMETER

POHR36

POHR44

POTH44

POTH50

POTH76

Theoretical electrical travel



(TET)

350° ± 3°

350° ± 3°

350° ± 3°

350° ± 2°

350° ± 1°

Theoretical electrical travel



(on request)

-

62.5° 90° 120° 120° 182.5° 210°

90°

-

-

Useful electrical travel



(on request)

-

60° 90° 90° 119° 180° 180°

89°

-

-

Standard linearity (



± 0.5 %

± 0.5 %

± 0.5 %

± 0.25 %

± 0.1 %

Optional linearity (



± 0.25 %, ± 0.1 %,

± 0.05 %

± 0.4 %, ± 0.25 %, ± 0.1 %,

± 0.05 %, ± 0.04 %

± 0.25 %, ± 0.2 %,

± 0.1 %, ± 0.05 %

± 0.1 %, ± 0.05 %,

± 0.03 %

± 0.05 %, ± 0.02 %

Total resistance range (E3)

4.7 k

 or 10 k

4.7 k

 or 10 k

4.7 k

 or 10 k

4.7 k

 or 10 k

4.7 k

 or 10 k

± 10 %, optional: ± 20 %, ± 15 %, ± 5 %

Output smoothness

 0.1 % (on request: 0.5 %, 0.05 %, 0.025 %)

Power rating at 70 °C

2 W

2.5 W

2.5 W

3 W

4 W

Temperature coefficient

-300 ± 300 ppm/°C

Wiper current

 1 mA

Recommended



load impedance

 1000 R

n

Insulation resistance

 10 G at 500 V

DC

Dielectric strength

MECHANICAL SPECIFICATIONS

PARAMETER

POHR36

POHR44

POTH44

POTH50

POTH76

Size

15

18

18

20

30

Running and starting torque (cN cm)

first stage

2020

202535

additional stage

1818

182230

first stage

 2.2

 2.6

 6

 8

 20

additional stage

0.6

 0.6

 5

 6

 17

Weight (g)

first stage

50

80

100

100

230

additional stage

1212

505580

Protection class

IP50