MODEL657 datasheet(2/3 Pages) VISHAY

2 / 3 page

Model 657

Vishay Spectrol

Industrial Rotary Position Sensor

Bushing Mount Type, Conductive Plastic

www.vishay.com

For technical questions, contact: sfer@vishay.com

Document Number: 57077

Revision: 18-Jun-07

DIMENSIONS in inches (millimeters)

0.500

(12.70)

Ø 0.2497

(6.34 - 0.01)

+ 0.0000

- 0.0003

0.030 MAX.

(0.76)

0.031

(0.79)

0.428

(10.87)

± 0.015

0.014

(0.36)

0.625

(15.81)

0.688

(17.46)

0.375

(9.53)

0.143

(3.64)

0.035 x 0.075

(0.89 x 1.91)

MINIMUM WIRE OPENING

0.151

(3.84)

0.093

(2.36)

0.042

Ø 0.375 ± 0.002 x 0.030 MAX. WIDE PILOT

(9.53 x 0.76 MAX. WIDE PILOT)

+ 0.000

- 0.051

8 - 32 UNEF - 2A

0.216

(5.49)

± 0.015

90°

± 5°

SPECTROL

657-X-X-XXX

XXXX MEX

3 2 1

SHAFT FLAT AND PHASING DIAGRAM

WITH SHAFT FLAT POSITIONED AS SHOWN, OUTPUT RATIO

TO BE e/E = 0.50 ± 0.02

DECIMALS: XX ± 0.01 INCHES (± 0.25 mm)

XX ± 0.005 INCHES (± 0.13 mm) ANGLES: ± 2°

± 0.031

SCHEMATIC

STANDARD RESISTANCE VALUES

CODE

RESISTANCE

(

Ω)

102

202

502

103

10K

203

20K

503

50K

104

100K

MATERIAL SPECIFICATIONS

Shaft

Stainless steel

Bushing

Nickel plated brass

Housing

Thermoplastic

Element

Conductive plastic on

alumina substrate

ENVIRONMENTAL SPECIFICATIONS

Rotational Life

2 million revolutions

Vibration

15 G’s at 10 to 2000 Hz

Operating Temperature

- 40 °C to + 125 °C

Storage Temperature

- 55 °C to + 150 °C

Temperature Coefficient

± 600 ppm/°C

Shock

30 G’s

Resistant to Solder Heat

350 °C for 5 s

Moisture Resistance

IP Rating

Sealed construction

IP67* application to provide

protection for wiring terminals

MARKING

Unit

Identification

Vishay Spectrol, part number, data code,

country of origin and terminal designation

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