EAW0J-B24-AE0128L Bourns Inc., EAW0J-B24-AE0128L Datasheet

EAW0J-B24-AE0128L

Manufacturer Part Number

EAW0J-B24-AE0128L

Description

Absolute/Mechanical Encoder

Manufacturer

Bourns Inc.

Type

Absoluter

Datasheet

1.EAW0J-B24-AE0128L.pdf (5 pages)

Specifications of EAW0J-B24-AE0128L

Encoder Resolution

128CPR

Rotational Speed Max

120rpm

Rotational Life Cycles

50000

Contact Current

10mA

Encoder Output

Gray Code

Operating Temperature Range

-40Â°C To +85Â°C

Mounting Type

PC Board

Mounting Style

Through Hole

Termination Style

Solder Pin

Output

Digital

Shaft Type

1/4 in Diameter Plain with Inserted Slot

Product

Mechanical

Pulses Per Revolution

128

Detents

Index Output

Not Indexed

Encoder Signal

Digital

Encoder Code

Gray

Encoder Reading

Absolute

Shaft Diameter (mm)

6.35mm

Shaft Style

Plain

Built In Switch

Operating Temperature Min Deg. C

-40C

Operating Temperature Max Deg. C

85C

Terminal Type

PC Pins

Mechanical Life

50000

Encoder Type

Mechanical (Absolute)

Leaded Process Compatible

Yes

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Until now, the choice of an absolute

encoder meant an expensive, and larger-

sized product. Through the use of

combinatorial mathematics, the absolute

code pattern of the Bourns Absolute

Contacting Encoder ACE

single track for a very economical, energy-

efﬁ cient and compact product. Bourns’

ACE

that will also retain its last position in the

event of a power failure.

An intelligent alternative to incremental

encoders and potentiometers, the Bourns

ACE

automotive, medical and consumer prod-

uct applications.

Output ............................................................................................................................................................................ 8-bit code with 128 absolute states

Closed Circuit Resistance .......................................................................................................................................................................... 5 ohms maximum

Open Circuit Resistance .......................................................................................................................................................................100 K ohms minimum

Contact Rating ................................................................................................................................................. 10 milliamp @ 10 VDC or 0.1 watt maximum

Insulation Resistance (500 VDC) ................................................................................................................................................... 1,000 megohms minimum

Dielectric Withstanding Voltage (MIL-STD-202 Method 301)

Electrical Travel..................................................................................................................................................................................................... Continuous

Contact Bounce (60 RPM) ...........................................................................................................................................................2.7 milliseconds maximum*

RPM (Operating) ............................................................................................................................................................................................... 120 maximum

Operating Temperature Range ...................................................................................................................................... -40 ºC to +85 ºC (-40 °F to +185 °F)

Storage Temperature Range ......................................................................................................................................... -40 ºC to +85 ºC (-40 °F to +185 °F)

Humidity ............................................................................................................................................................... MIL-STD-202, Method 103B, Condition B

Vibration .......................................................................................................................................................................................................................... 15 G

Shock .............................................................................................................................................................................................................................. 50 G

Rotational Life ...................................................................................................................................................................50,000 shaft revolutions minimum

IP Rating ..........................................................................................................................................................................................................................IP 40

Mechanical Angle ........................................................................................................................................................................................360 ° Continuous

Running Torque ..............................................................................................................................................................0.5 to 1.5 N-cm (0.75 to 2.50 oz-in.)

Mounting Torque ....................................................................................................................................................................... 79 N-cm (7 lb.-in.) maximum

Shaft Side Load (Static) ................................................................................................................................................................... 4.5 kg (10 lbs.) minimum

Weight ................................................................................................................................................................................ Approximately 14 gms. (0.50 oz.)

Terminals ................................................................................................................................................................................ Printed circuit board terminals

Soldering Condition

Marking ..........................................................................................................................Manufacturer’s name and trademark, part number, and date code.

Hardware ............................................... One lockwasher and one mounting nut are shipped with each encoder, except where noted in the part number.

Packaging .............................................................................................................................................................................................................45 pcs./tray

*High probability of missing quadrature codes with maximum bounce.

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

Customers should verify actual device performance in their speciﬁ c applications

Speciﬁ cations are subject to change without notice.

Electrical Characteristics

Environmental Characteristics

Mechanical Characteristics

General Information

Sea Level ............................................................................................................................................................................................ 1,000 VAC minimum

Contact Bounce..........................................................................................................................................................................0.1 millisecond maximum

Manual Soldering .................................................................................................................. 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire

Wave Soldering...........................................................................................................................................96.5Sn/3.0Ag/0.5Cu solder with no-clean ﬂ ux

Wash processes ....................................................................................................................................................................................Not recommended

™

provides an absolute digital output

is ideally suited for many industrial,

™

is placed on a

Features

■

EAW - Absolute Contacting Encoder (ACE™)

“common” is either

on a decoded

“select” pin

(active low)

or at GND.

Recommended Control Diagram for ACE-128

*RoHS compliant

Absolute encoder / absolute code output

Digital output

Sturdy construction

Bushing mount

Available with PC board mounting bracket (optional)

370 °C (700 °F) max. for 3 seconds

260 °C (500 °F) max. for 5 seconds

RESNET

4609X-

101-472

ACETAB:

256 byte

code

conversion

table (ROM)

Related parts for EAW0J-B24-AE0128L

EAW0J-B24-AE0128L Summary of contents

Page 1

... ACE provides an absolute digital output that will also retain its last position in the event of a power failure. An intelligent alternative to incremental encoders and potentiometers, the Bourns ™ ACE is ideally suited for many industrial, automotive, medical and consumer prod- uct applications. Electrical Characteristics Output ...

Page 2

EAW - Absolute Contacting Encoder (ACE™) Pin Output Code For ACE-128 Bit/Pin correlation binary “1” denotes an “open” switch and a binary ...

Page 3

EAW - Absolute Contacting Encoder (ACE™) Dimensional Drawings Bushing Mounted: Housing A with Rear Facing Terminals 23.88 (.940) 22.2 ± .25 (.874 ± .010) 9.02 ± .15 (.355 ± .006) 1.19 (.047 14.9 ± 0.5 ...

Page 4

EAW - Absolute Contacting Encoder (ACE™) Dimensional Drawings Shaft Style B 6.32 + 0.03/– 0.06 DIA. (.249 + .001/– .003) 1.19 1.6 (.047) (.063) Bushing Mounted: Housing A with Rear Facing Terminals Panel Hole Dimensions PCB Board Hole Pattern w/PCB ...

Page 5

... Single Flatted (1/4 " Dia.) R Plain with Inserted Slot (6 mm Dia.) The sample part number demonstrates the identification code for Bourns contacting encoders. The part number shown is a commonly used model, typically available from stock. *Consult factory concerning special inquiries. REV. 02//25/11 Speciﬁ ...

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