Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

Dimensional Drawings

Optional

Radial Leads

A

-+

B

GROUND

INDEX

OR

N.C.

Vcc

CHANNEL B

CHANNEL A

TERMINATION DIAGRAM

2.54

(.100)

TYP.

SQ.

1/4-32 UNEF

DIA.

3/8-32 UNEF

3/8-32 UNEF

1/4-32 UNEF

Optional

Radial Leads

Bushing Style C

Bushing Style S

(Ball Bearing)

Bushing Style A

Shaft End Style C

Bushing Style T

(Ball Bearing)

Servo Mount Style W (Ball Bearing)

9.525

(.375)

.635

(.025)

18.5

(.73)

6.35

(.250)

6.34

(.2497)

5.54

(.218)

F

3.167 + .000/ – .0076

(.1247 + .000/ – .0003)

8.636

(.34 )

4 PLCS.

2 PLCS.

Recommended Board Layout

with Bracket

Bushing with Bracket

Side Exit

Ribbon Cable Option

Rear Exit

Ribbon Cable Option

Side Exit

Ribbon Cable Option Detail

Connector

Pinout

Connector

Pinout

18.11

(.713)

11.13

(.438)

4.14

(.163)

2.54

(.100)

6.99

(.275)

9 PLCS.

DIA. MIN.

0.99

(.039)

15.88

(.625)

1.37

(.054)

21.21

(.835)

2.36

(.093)

9.53

(.375)

6.342 + .000/ – .0076

(.2497 + .000/ – .0003)

10.32 + .000/ – .0508

(.4062 + .000/ – .002)

9.53

(.375)

9.53

(.375)

DIA.

6.342 + .000/ – .0076

(.2497 + .000/ – .0003)

DIA.

1.57

(.062)

DIA.

3.167 + .000/ – .0076

(.1247 + .000/ – .003)

1.57

(.062)

9.53

(.375)

DIA.

7.14 + .000/ – .0508

(.281 + .000/ – .002)

DIA.

1.57

(.062)

1.57

(.062)

DIA.

3.167 + .000/ – .0076

(.1247 + .000/ – .003)

21.8

(.86)

DIA.

DIA.

22.2 + .0127 / – .1270

(.875 + .0005 / – .0050)

1.57

(.062)

(.010 .003)

R.

Anti-rotation Lug

View

SHAFT

LENGTH

SHAFT FLAT

LENGTH

(DIM. F)

12.7

(.050)

15.9

(.625)

19.1

(.750)

2.54

(.100)

5.08

(.200)

8.25

(.325)

A

—+ B

5

4

3

2

1

5

4

3

2

1

Consult factory for options not shown,

including:

•

Wire lead or cable options

•

Connectors

•

Non-standard resolutions

•

Special shaft/bushing sizes and

features

•

Special performance characteristics

•

PCB mounting bracket

EN - Rotary Optical Encoder

GENERAL INFORMATION

The Bourns

produces a 2-bit quadrature signal which is suitable for digital systems

where both magnitude and direction of adjustment must be provided.

The EN encoder is ideal for use as a digital panel control or as a position

sensing device in applications where long life, reliability, high resolution

and precise linearity are critical.

The EN series encoder converts rotary input into electrical signals

which can be used by microprocessors without A/D conversion.

Bourns encoder output signals are square wave digital pulses which do

not require debounce circuitry. Both features make it possible to

significantly reduce the memory overhead, wiring and wiring

interconnects required by other types of control devices.

EN optical encoders offer a useful rotational life of from 10 million to

200 million shaft revolutions, making them ideal for extended service

applications. The Bourns encoder is also compact and well suited for

situations where the available space is limited.

MM

DIMENSIONS:

(IN.)