ECW1J-C28-SE0/079L - BOURNS

5 ms DELAY

DEBOUNCE

(MC 14490)

MAGNITUDE

(CUSTOMER LOGIC CIRCUITRY)

DECODE

LOGIC

UP/DOWN

COUNTER

DIRECTION

BINARY

OUTPUT

Features

n Incremental encoder / quadrature output

n Exceptionally long operating life

n Sturdy construction

n Bushing mount

n Available with PC board mounting bracket (optional)

n RoHS compliant*

ECW - Digital Contacting Encoder

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

Speciﬁcations are subject to change without notice.

Users should verify actual device performance in their speciﬁc applications.

The products described herein and this document are subject to speciﬁc legal disclaimers as set forth

on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

Electrical Characteristics

Output .................................................................................. 2-bit quadrature code, Channel A leads Channel B by 90 º electrically turning clockwise (CW)

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)

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

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

Contact Bounce (15 RPM)................................................................................................................................................................5 milliseconds maximum

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

Phase Tolerance (CH A to CH B) ............................................................................................................................................................................90 ° ± 72 °

Environmental Characteristics

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

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

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

Rotational Life..................................................................................................................................................................................200,000 shaft revolutions

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

Mechanical Characteristics

Mechanical Angle ..................................................................................................................................................................................................Continuous

Running Torque (Detented) ............................................................................................................................................ 0.5 to 1.5 N-cm (0.75 to 2.25 oz-in.)

Undetented Torque ........................................................................................................................................................ 0.17 to 1.0 N-cm (0.25 to 1.50 oz-in)

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

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

Weight ................................................................................................................................................................................Approximately 21 gms. (0.75 oz.)

Terminals ................................................................................................................................................................................................. PC pin or solder lug

Soldering Condition

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

370 °C (700 °F) max. for 3 seconds

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

260 °C (500 °F) max. for 5 seconds

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

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.

Quadrature Output Table – This table is intended to show available outputs as currently dened.

RECOMMENDED INCREMENTAL CONTROL DIAGRAM FOR USE WITH A DEBOUNCE CIRCUIT

1/4 CYCLE PER DETENT

Open Circuit

Channel A

DDDDDDDDDDDDDD DD D

Closed Circuit

Open Circuit

Closed Circuit

CCW CCW

Channel B

FULL CYCLE PER DETENT (Normally Open in Detent Shown)

Open Circuit

CW Channel A

DDD

Closed Circuit

Open Circuit

Closed Circuit

Channel B

WARNING Cancer and Reproductive Harm

www.P65Warnings.ca.gov

Speciﬁcations are subject to change without notice.

Users should verify actual device performance in their speciﬁc applications.

The products described herein and this document are subject to speciﬁc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

ECW - Digital Contacting Encoder

Dimensional Drawings

BUSHING MOUNTED - HOUSING A

Rear-Facing Terminals

BUSHING MOUNTED - HOUSING H

Front-Facing Terminals

8.51

(.335)

9.0

(.354)

1.52

(.060)

6.35

(.250)

“L” ± 0.38

(“L” ± .015)

“L” ± 0.38

(“L” ± .015)

5.69 ± 0.25

(.224 ± .010)

6.35 ± 0.25

(.250 ± .010)

DIA.

M9 X 0.75-6g SPL

14.7 ± 0.5

(.578 ± .020)DIA.

22.2 ± 0.25

(.874 ± .010)

27.68 ± 0.25

(1.090 ± .010)

28.49 ± 0.25

(1.122 ± .010)

ACB

11.1

(.437)

CHANNEL BCHANNEL A COMMON

CHANNEL BCHANNEL A

COMMON

PCB BRACKET MOUNTED - HOUSING B

Dimensions not given are the same as Bushing Mounted.

6.12 ± 0.25

(.241 ± .010)

9.02

(.355)

.762

(.030)

4 PLCS.

23.37 ± 0.51

(.920 ± .020)

17.069

(.672)

ACB

SOLDER HOLES - HOUSING C

Dimensions not given are the same as Bushing Mounted.

2.54

(.100)

5.08

(.200)

.107

(.042)

3 PLCS.

DIA.

16.002

(.630)

28.499 ± .254

(1.122 ± .010)

ACB

1.57

(.062)

15.2

(.600)

23.6

(.930)

11.4

(.450)

2.54

(.100)TYP.

1.2

(.047)DIA. 7 PLCS.

SNAP-IN MOUNT - Housing G

PCB MOUNTING DIMENSIONS

(Housing Styles B and E)

13.08

(.515)

8.51

(.335)

6.35

(.250)

8.99

(.354)

DIA.

1.52

(.060)

7.24 ± 0.25

(.285 ± .010)

22.20 ± 0.25

(.874 ± .010) 9.53

(.375)

14.68 ± 5.08

(0.578 ± 0.20) DIA.

27.69 ± 0.25

(1.090 ± .010)

28.50 ± 0.25

(1.122 ± .010)

11.10

(.437)

.635

(.025) 2.54

(.100)

5.08

(.200)

PCB MOUNTING DIMENSIONS

22.68

(.893)

11.33

(.446)

8 X

3 X

.97

(.038)R

21.11

(.831)

19.76

(.778)

12.24

(.482)

10.90

(.429)

3 X 1.07

(0.042)

2.54

(.100)

2 X

Shaft Style B

6.32 + 0.03/– 0.06

(.249 + .001/– .003) DIA.

1.19

(.047)

1.6

(.063)

1.52

(.060)

.635

(.025) 3 PLCS.

2.54

(.100) 2 PLCS. 2.79

(.110)

23.87

(.940)

1.19

(.047) 11.09

(.437)

6.35

(.250)

9.52

(.375)

16.0

(.630)

3.17

(.125) DIA.

2.54

(.100)

2 PLCS.

1.19

(.047) DIA.

4 PLCS.

9.93

(.391) DIA.

14.9 ±.050

(.587 ±.020) DIA.

9.01 ±.020

(.355 ±.008)

22.2 ±.025

(.874 ±.010)

17.4 ±.025

(.685 ±.010)

15.87 ±.038

(.625 ±.015)

8.50 ±.025

(.335 ±.010)

4.75 +.076/-.050

(.187 +.003/-.002) DIA.

4.01 +.050/-.025

(.158 +.002/-.001)

3/8–32 UNEF 2A

"D" DIMENSION EXTENDS FROM SHAFT END TO BUSHING FACE

"D" = (SHAFT LENGTH, FMS) – (BUSHING LENGTH)

Shaft Style C

5.54 ± .076

(.218 ± .003)

"D" 6.32 + 0.03/– 0.06

(.249 + .001/– .003)

DIA.

Shaft Style J

"D"

4.01 + .051/ – .025

(.158 + .002/ – .001)

0.94

(.042)

4.75 ± .006/-.051

(.187 + .003/-.002) DIA.

1.57

(.062)

3.55

(.140)

Shaft Style Y

1.57

(.062)

4.7

(.185)

DIA.

9.65

(.380)

14.7

(.578)

SLOT DEPTH ("Y" SHAFT) FOR SHAFTS

< 1 " LENGTH FOR SHAFTS ≥ 1 " LENGTH

CHANNEL BCHANNEL A

COMMON

PANEL HOLE DIMENSIONS

Bushing Mounted

9.52

(.375)

3.17

(.125)

9.14

(.360)DIA.

DIA.

.25

(.010)

.13

(.005)

(IN)

Shaft Style R

1.6

(.063)

6.00 ± .127

(.236 ± .005)

DIA.

1.19

(.047)

0.78

(.031)

Speciﬁcations are subject to change without notice.

Users should verify actual device performance in their speciﬁc applications.

The products described herein and this document are subject to speciﬁc legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

ECW - Digital Contacting Encoder

How to Order

PART NUMBERING SYSTEM

ECW1 J-B24-BC0024L

Code

Rotational Life

200,000 Revolutions

Code

Description

9 mm x 1/4 " Length. Threaded M9x0.75

9 mm x 3/8 " Length. Threaded M9x0.75

(Use B shaft only.)

9 mm x 1/4 ". No Thread.

BUSHING CONFIGURATION

Code

Description

Not Applicable

Normally Open

SWITCHING CONFIGURATION (In Detent Position)

Applies to performance codes B0012 and C0024

only, use code "0" for all other performance codes.

Code

Description

9:00 Position

None

ANTI-ROTATION LUG POSITION

Code

Description

Plain with Inserted Slot (1/4 " Dia.)

Single Flatted (1/4 " Dia.)

Plain with Cross Slot (6 mm Dia.)

Split Shaft Version (.185 " Dia.)

Flatted Shaft (3/16 " Dia.)

SHAFT STYLE (See Outline Drawing for Details)

Features

Terminal Cover

Rear-Facing Terminals

Solder Holes

PCB Bracket

Hardware Included

Snap-In Mount

Forward-Facing Terminals

*Bushing code T only.

HOUSING TERMINAL CONFIGURATION

(X indicates “Equipped With”

Code

SHAFT LENGTH (FMS)

Available

Shaft Styles

B, C, J, Y

Description

1/2 " Length

5/8 " (15.9 mm) Length

3/4 " (19 mm) Length

7/8 " (22.2 mm) Length

1 " (25.4 mm) Length

1-1/8 " (28.6 mm) Length

Metric

19 mm Length

22 mm Length

24 mm Length

The sample part number demonstrates the identification

code for Bourns contacting encoders.

Boldface features are Bourns standard options. All others

are available with higher minimum order quantities.

Code

E0006

E0009

E0012

E0024

E0036

B0012

C0006

C0024

D0009

PERFORMANCE CODE

Cycles/Rev.

Detents

Code

Description

Compliant

RoHS IDENTIFIER

REV. 04/15/20

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C1753 05/17/18R