EAW0J-C24-HE0128L - BOURNS - Product.Network

Features

■ Absolute encoder / absolute code output

■ Digital output

■ Sturdy construction

■ Bushing mount

■ Available with PC board mounting bracket (optional)

■ *RoHS compliant

EAW - Absolute Contacting Encoder (ACE™)

Electrical Characteristics

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)

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

Electrical T ravel .....................................................................................................................................................................................................Continuous

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

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

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....................................................................................................................................................................50,000 shaft revolutions minimum

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

Mechanical Characteristics

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.)

T erminals .................................................................................................................................................................................Printed circuit board terminals

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.

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

*High probability of missing quadrature codes with maximum bounce.

General Information

*RoHS COMPLIANT

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™) is placed on a

single track for a very economical, energy-

effi cient and compact product. Bourns®

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,

medical and consumer product applications.

Recommended Control Diagram for ACE-128

RESNET

4609X-

101-472

“common” is either

on a decoded

“select” pin

(active low)

or at GND.

ACETAB:

256 byte

code

conversion

table (ROM)

P7P6P5P4P3P2P1

*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.

WARNING Cancer and Reproductive Harm

www.P65Warnings.ca.gov

EAW - Absolute Contacting Encoder (ACE™)

Pin Output Code For ACE-128

Bit/Pin correlation: b7 b6 b5 b4 b3 b2 b1 b0 = p8 p7 p6 p5 p4 p3 p2 p1

A binary “1” denotes an “open” switch and a binary “0” denotes a “closed” switch.

Positions 0-127 are seen by a clockwise rotation of the shaft.

Position p8 p7 p6 p5 p4 p3 p2 p1 Decimal

Output

0 0 1 1 1 1 1 1 1 127

10011111163

20011111062

30011101058

40011100056

5 1 0 1 1 1 0 0 0 184

6 1 0 0 1 1 0 0 0 152

70001100024

800001000 8

90100100072

10 0 1 0 0 1 0 0 1 73

11 0 1 0 0 1 1 0 1 77

12 0 1 0 0 1 1 1 1 79

13 0 0 0 0 1 1 1 1 15

14 0 0 1 0 1 1 1 1 47

15 1 0 1 0 1 1 1 1 175

16 1 0 1 1 1 1 1 1 191

17 1 0 0 1 1 1 1 1 159

18 0 0 0 1 1 1 1 1 31

19 0 0 0 1 1 1 0 1 29

20 0 0 0 1 1 1 0 0 28

21 0 1 0 1 1 1 0 0 92

22 0 1 0 0 1 1 0 0 76

23 0 0 0 0 1 1 0 0 12

24 0 0 0 0 0 1 0 0 4

25 0 0 1 0 0 1 0 0 36

26 1 0 1 0 0 1 0 0 164

27 1 0 1 0 0 1 1 0 166

28 1 0 1 0 0 1 1 1 167

29 1 0 0 0 0 1 1 1 135

30 1 0 0 1 0 1 1 1 151

31 1 1 0 1 0 1 1 1 215

32 1 1 0 1 1 1 1 1 223

33 1 1 0 0 1 1 1 1 207

34 1 0 0 0 1 1 1 1 143

35 1 0 0 0 1 1 1 0 142

36 0 0 0 0 1 1 1 0 14

37 0 0 1 0 1 1 1 0 46

38 0 0 1 0 0 1 1 0 38

39 0 0 0 0 0 1 1 0 6

40 0 0 0 0 0 0 1 0 2

41 0 0 0 1 0 0 1 0 18

42 0 1 0 1 0 0 1 0 82

43 0 1 0 1 0 0 1 1 83

44 1 1 0 1 0 0 1 1 211

45 1 1 0 0 0 0 1 1 195

46 1 1 0 0 1 0 1 1 203

47 1 1 1 0 1 0 1 1 235

48 1 1 1 0 1 1 1 1 239

49 1 1 1 0 0 1 1 1 231

50 1 1 0 0 0 1 1 1 199

51 0 1 0 0 0 1 1 1 71

52 0 0 0 0 0 1 1 1 7

53 0 0 0 1 0 1 1 1 23

54 0 0 0 1 0 0 1 1 19

55 0 0 0 0 0 0 1 1 3

56 0 0 0 0 0 0 0 1 1

57 0 0 0 0 1 0 0 1 9

58 0 0 1 0 1 0 0 1 41

59 1 0 1 0 1 0 0 1 169

60 1 1 1 0 1 0 0 1 233

61 1 1 1 0 0 0 0 1 225

62 1 1 1 0 0 1 0 1 229

63 1 1 1 1 0 1 0 1 245

Position p8 p7 p6 p5 p4 p3 p2 p1 Decimal

Output

64 1 1 1 1 0 1 1 1 247

65 1 1 1 1 0 0 1 1 243

66 1 1 1 0 0 0 1 1 227

67 1 0 1 0 0 0 1 1 163

68 1 0 0 0 0 0 1 1 131

69 1 0 0 0 1 0 1 1 139

70 1 0 0 0 1 0 0 1 137

71 1 0 0 0 0 0 0 1 129

72 1 0 0 0 0 0 0 0 128

73 1 0 0 0 0 1 0 0 132

74 1 0 0 1 0 1 0 0 148

75 1 1 0 1 0 1 0 0 212

76 1 1 1 1 0 1 0 0 244

77 1 1 1 1 0 0 0 0 240

78 1 1 1 1 0 0 1 0 242

79 1 1 1 1 1 0 1 0 250

80 1 1 1 1 1 0 1 1 251

81 1 1 1 1 1 0 0 1 249

82 1 1 1 1 0 0 0 1 241

83 1 1 0 1 0 0 0 1 209

84 1 1 0 0 0 0 0 1 193

85 1 1 0 0 0 1 0 1 197

86 1 1 0 0 0 1 0 0 196

87 1 1 0 0 0 0 0 0 192

88 0 1 0 0 0 0 0 0 64

89 0 1 0 0 0 0 1 0 66

90 0 1 0 0 1 0 1 0 74

91 0 1 1 0 1 0 1 0 106

92 0 1 1 1 1 0 1 0 122

93 0 1 1 1 1 0 0 0 120

94 0 1 1 1 1 0 0 1 121

95 0 1 1 1 1 1 0 1 125

96 1 1 1 1 1 1 0 1 253

97 1 1 1 1 1 1 0 0 252

98 1 1 1 1 1 0 0 0 248

99 1 1 1 0 1 0 0 0 232

100 1 1 1 0 0 0 0 0 224

101 1 1 1 0 0 0 1 0 226

102 0 1 1 0 0 0 1 0 98

103 0 1 1 0 0 0 0 0 96

104 0 0 1 0 0 0 0 0 32

105 0 0 1 0 0 0 0 1 33

106 0 0 1 0 0 1 0 1 37

107 0 0 1 1 0 1 0 1 53

108 0 0 1 1 1 1 0 1 61

109 0 0 1 1 1 1 0 0 60

110 1 0 1 1 1 1 0 0 188

111 1 0 1 1 1 1 1 0 190

112 1 1 1 1 1 1 1 0 254

113 0 1 1 1 1 1 1 0 126

114 0 1 1 1 1 1 0 0 124

115 0 1 1 1 0 1 0 0 116

116 0 1 1 1 0 0 0 0 112

117 0 1 1 1 0 0 0 1 113

118 0 0 1 1 0 0 0 1 49

119 0 0 1 1 0 0 0 0 48

120 0 0 0 1 0 0 0 0 16

121 1 0 0 1 0 0 0 0 144

122 1 0 0 1 0 0 1 0 146

123 1 0 0 1 1 0 1 0 154

124 1 0 0 1 1 1 1 0 158

125 0 0 0 1 1 1 1 0 30

126 0 1 0 1 1 1 1 0 94

127 0 1 0 1 1 1 1 1 95

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.

87C65

12C34 0.51

(.020)

2.54

(.100)

0.64 ± 0.03

(.025 ± .001)

10 PLCS.

0.76

(.030)TYP. 4 PLCS.

Bushing Mounted: Housing A with Rear Facing Terminals

PCB Bracket Mounted: Housing B

1.52

(.060)

1.02

(.040)

0.64 ± 0.03

(.025 ± .001)

10 PLCS.

2.54

(.100)

8 PLCS.

3.68 ± .38

(.145 ± .015)

9.02

(.355)

5.08

(.200)

6.32 +0.03/-0.08

(.249 +.001/-.003)

6.32 +0.03/-0.08

(.249 +.001/-.003)

8.51 ± .25

(.335 ± .010)

19.05 ± .38

(.750 ± .015)

6.35

(.250)

12.7

(.500) 1.6

(.063)

12.7

(.500) 1.6

(.063)

1.19

(.047)

1.19

(.047)

9.0

(.354)DIA.

M9 X 0.75-6g SPL

9.0

(.354)DIA.

M9 X 0.75-6g SPL

2.79

(.110) 13.97

(.550)

11.1

(.437)

27.94 ± .25

(1.100 ± .010)

18.54 ± .38

(.730 ± .015)

14.7 ± 0.5

(.578 ± .020)

1.19

(.047)

9.02 ± .15

(.355 ± .006)

22.2 ± .25

(.874 ± .010)

23.88

(.940)

DIA.

87C65

12C34

2.79

(.110) 13.97

(.550)

11.1

(.437)

27.94 ± .25

(1.100 ± .010)

17.07 ± .25

(.672 ± .010)

1.19

(.047)

9.02 ± .15

(.355 ± .006)

22.2 ± .25

(.874 ± .010)

23.88

(.940)

23.37 ± .25

(.920 ± .010)

Bushing Mounted: Housing A with Forward Facing Terminals

1.52

(.060)

0.64 ± 0.03

(.025 ± .001)

10 PLCS.

2.54

(.100)

8 PLCS.

2.54 ± .25

(.100 ± .010)

6.32 +0.03/-0.08

(.249 +.001/-.003)

8.51 ± .25

(.335 ± .010)

19.05 ± .38

(.750 ± .015)

6.35

(.250)

12.7

(.500) 1.6

(.063)

1.19

(.047)

9.0

(.354)DIA.

M9 X 0.75-6g SPL

2.79

(.110) 13.97

(.550)

11.1

(.437)

27.94 ± .25

(1.100 ± .010)

14.7 ± 0.5

(.578 ± .020)

1.19

(.047)

9.02 ± .15

(.355 ± .006)

22.2 ± .25

(.874 ± .010)

23.88

(.940)

DIA.

87C65

12C34

EAW - Absolute Contacting Encoder (ACE™)

Dimensional Drawings

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.

EAW - Absolute Contacting Encoder (ACE™)

Dimensional Drawings

Panel Hole Dimensions

Shaft Style C

"D"

Shaft Style RShaft Style B

"D" DIMENSION EXTENDS FROM SHAFT END TO BUSHING FACE

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

PCB Board Hole Pattern w/PCB Bracket

6.00 ± 0.05

(.236 ± .002)

1.6

(.063)

1.19

(.047)

6.32 + 0.03/– 0.06

(.249 + .001/– .003) DIA.

5.54 ± .076

(.218 ± .003)

6.32 + 0.03/– 0.06

(.249 + .001/– .003) DIA.

1.6

(.063)

1.19

(.047)

9.5

(.375) 9.93

(.391)

3.17

(.125)

DIA.

2.54

(.100)

25.4

(1.00)

1.2

(.047)

TYP.

DIA. 10 PLCS.

DIA.

TOLERANCES EXCEPT WHERE NOTED:

.XX = ± .XXX = ±

DIMENSIONS:

.51

(.02)

.127

(.005)

(IN)

Bushing Mounted: Housing A with Rear Facing Terminals

Panel Hole Dimensions PCB Board Hole Pattern w/PCB Bracket

9.5

(.375) 9.93

(.391)

3.17

(.125)

DIA.

2.54

(.100)

25.4

(1.00)

15.24

(.600)

5.08

(.200)

1.2

(.047)

TYP.

11.43

(.450) 2 PLCS.

DIA. 14 PLCS.

2 PLCS.

PCB Bracket Mounted: Housing B

PCB Board Hole Pattern w/PCB Bracket

9.5

(.375) 9.93

(.391)

3.17

(.125)

DIA.

2.54

(.100)

25.4

(1.00)

1.2

(.047)

TYP.

DIA. 10 PLCS.

Bushing Mounted: Housing A with Forward Facing Terminals

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.

EAW - Absolute Contacting Encoder (ACE™)

How to Order

PART NUMBERING SYSTEM

EAW0J-B24-AE0128L

Code

LDescription

Compliant

Code

ARotational Life

50,000 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.)

BUSHING CONFIGURATION

Code

0Description

Non-Detented

DETENT CONFIGURATION

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 Inserted Slot (6 mm Dia.)

SHAFT STYLE (See Outline Drawing for Details)

Code

E0128

PERFORMANCE CODE

RoHS IDENTIFIER

States/Rev.

128

Detents

Features

Rear Mount Terminals

Forward Facing Terminals

PCB Bracket

Hardware Included

HOUSING TERMINAL CONFIGURATION

(X indicates “Equipped With”)

Code

SHAFT LENGTH (FMS)Available

Shaft Styles

B, C

Description

3/4 ˝ (19.05 mm) Length

Metric

19 mm Length

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. 09/19

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.

Legal Disclaimer Notice

This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and

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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change

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and complete before placing orders for Bourns® products.

The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and

statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical

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