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For technical questions, contact: sfer@vishay.com

Document Number: 54008

28

Revision: 24-May-07

Series ECS

Vishay Sfernice

Precision Rotative Transducers,

Conductive Plastic, Economic Series (ECS)

FEATURES

• Long life: 5 million cycles

• Bush or servo mounting types available

• Rear comolded terminals

• Cost effective solution for any industrial applications

Low cost industrial motion transducers, conductive plastic

track.

RoHS

COMPLIANT

SIZE

09

MODEL

78 RS

78 RB

78 PS

78 PB

ELECTRICAL SPECIFICATIONS

Theoretical Electrical Angle (TEA)

(AEA) - 3°

Independent Linearity (over TEA)

A

≤ ± 1 %, on request: B ≤ ± 0.5 % C ≤ ± 0.35 %

A

≤ ± 2 %

Actual Electrical Angle (AEA)

340° ± 5°

1 - 2 - 5 - 10 k

Ω (on request other values)

1 - 2 - 5 - 10 k

Ω

Ohmic Value Tolerances at 20 °C

Standard: ± 20 %/special: ± 10 %

± 20 %

Output Smoothness

0.1 %

Maximum Power Rating at 70 °C

0.3 W

Wiper Current

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

Tap (Current or Voltage)

1: On request

NA

Resistance Load on Wiper

≥ 1000 x R

T

End Voltage

≤ 0.5 %DC

Insulation Resistance

≥ 1000 MΩ, 500 V

DC

Dielectric Strength

≥ 500 V

MECHANICAL SPECIFICATIONS

Mechanical Angle (MA)

360° continuous

On Request: Stops

342° ± 5°

Mounting Type

Servo

Bushing

Servo

Bushing

Shaft Guiding

Sleeve bearings

Shaft

Stainless steel

Option: Flat or Screw Driver Slot On Shaft

On request

NA

Termination

Turrets

Wiper

Precious metal multi-finger contact

Starting Torque (N.cm)

≤ 0.5

Torque on Stops (N.cm)

≥ 20

Weight (g)

Bushing 17 g ± 3 g

Servo 12 g ± 3 g

PERFORMANCE

5

Temperature Range

- 55 °C to + 125 °C

Climatic Category

55/125/04

Speed Rotation (RPM)

150

Sine Vibration on 3 Axes

15 g from 10 Hz to 2000 Hz

Mechanical Shocks on 3 Axes

50 g - 11 ms - half sine