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Encoders
Rotary encoders are ideal for use as digital panel controls or position sensing devices in a wide range of applications where digital circuitry is used. These devices are available in contacting and optical types and in various resolutions. Some models are available with push momentary switch and detents.
Typical applications include temperature control, speed control, position sensing, menu selection, and volume control.
Bourns offers a Design Kit for this product line.
Contacting Encoders |
| Specifications |
3315 |
ECW |
EPS |
EAW |
| Product Photo |
 |
 |
 |
 |
| Type |
Incremental |
Incremental |
Incremental |
Absolute |
| Package Diameter |
9mm |
22mm |
22mm x 27mm |
22mm |
| Sealable |
IP67 |
IP40 |
IP40 |
IP40 |
| Detents |
No |
Yes |
Yes |
No |
| Switch |
No |
No |
Yes |
No |
| Shaft |
Plastic |
Plastic |
Plastic |
Plastic |
| Bushing |
Plastic/Metal |
Plastic |
Plastic |
Plastic |
| Terminal Configuration |
5 Pin Axial or Radial |
3 Pin Axial or Radial |
5 Pin Axial or Radial |
10 Pin Axial or Radial |
| Resolution Range |
6, 16 |
6, 9, 12, 24, 36 |
6, 9, 12, 24, 36 |
128 |
| Rotational Speed |
120 rpm max. |
120 rpm max. |
120 rpm max. |
120 rpm max. |
| Contact Rating |
TTL compatible |
10 mA @ 10 VDC |
10 mA @ 10 VDC |
10 mA @ 10 VDC |
| Rotational Life |
100,000 cycles @ 6 ppr /
25.00 cycles @ 16 ppr |
200,000 shaft revolutions |
200,000 shaft revolutions |
50,000 shaft revolutions |
| Material Declaration Sheet |
3315Y-L |
ECW-L |
|
EAW |
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| Specifications |
ES |
PEC 11 |
PEC 12 |
PEC 16 |
| Product Photo |
 |
 |
 |
 |
| Type |
Incremental/ Shaftless |
Incremental |
Incremental |
Incremental |
| Package Diameter |
20mm |
12mm |
12mm |
16mm |
| Sealable |
IP40 |
IP40 |
IP40 |
IP40 |
| Detents |
Yes |
Yes |
Yes |
Yes |
| Switch |
No |
Yes |
Yes |
Yes |
| Shaft |
None |
Metal |
Plastic |
Plastic |
| Bushing |
None |
Metal |
Metal |
Metal |
| Terminal Configuration |
3 Pin Axial |
3 Pin Axial or Radial |
3 Pin Axial or Radial |
3 Pin Axial or Radial |
| Resolution Range |
6. 9. 12, 24 |
12, 18, 24 |
12, 24 |
12, 24 |
| Rotational Speed |
120 rpm max. |
60 rpm max. |
100 rpm max. |
100 rpm max. |
| Contact Rating |
10 mA @ 10 VDC |
1 mA @ 5 VDC |
1 mA @ 5 VDC |
1 mA @ 5 VDC |
| Rotational Life |
200,000 shaft revolutions |
30,000 shaft revolutions |
30,000 shaft revolutions |
100,000 shaft revolutions |
| Material Declaration Sheet |
ES-L |
PEC_11 |
PEC_12 |
PEC_16 |
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| Specifications |
PES12 |
|
|
|
| Product Photo |
 |
|
|
|
| Type |
Incremental/ Shaftless |
|
|
|
| Package Diameter |
12mm |
|
|
|
| Sealable |
IP40 |
|
|
|
| Detents |
Yes |
|
|
|
| Switch |
No |
|
|
|
| Shaft |
None |
|
|
|
| Bushing |
None |
|
|
|
| Terminal Configuration |
3 Pin Axial |
|
|
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| Resolution Range |
24 |
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| Rotational Speed |
60 rpm max. |
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| Contact Rating |
1 mA @ 5 VDC |
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| Rotational Life |
60,000 shaft revolutions |
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| Material Declaration Sheet |
PES_12 |
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Optical Encoders
| Specifications |
EM14 |
EN |
|
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| Product Photo |
 |
 |
|
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| Type |
Incremental |
Optical/
Incremental |
|
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| Package Diameter |
14mm |
21mm x 16mm |
|
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| Sealable |
IP54 |
IP40 |
|
|
| Detents |
Yes |
No |
|
|
| Switch |
Yes |
No |
|
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| Shaft |
Metal |
Metal |
|
|
| Bushing |
Metal |
Metal |
|
|
| Terminal Configuration |
5 Pin Axial or Radial / Cables with/without connector |
5 Pin Axial or Radial / Cables with/without connector |
|
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| Resolution Range |
8, 16, 32, 64 |
25, 50, 64, 100, 125, 128, 200, 256 |
|
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| Rotational Speed |
120 rpm max. |
300 rpm max.
ball bearing model: 3000 rpm max. |
|
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| Interface Compatibility |
TTL, CMOS, HCMOS compatible |
TTL, CMOS |
|
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| Rotational Life |
100,000 and 1,000,000 cycles |
10 million and 200 million shaft revolutions |
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| Material Declaration Sheet |
|
EN-L
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Magnetic Encoders
| Specifications |
EMS22 |
|
|
|
| Product Photo |
 |
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|
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| Type |
Rotary |
|
|
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| Package Diameter |
21mm x 16mm |
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| Sealable |
IP65 |
|
|
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| Detents |
No |
|
|
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| Switch |
No |
|
|
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| Shaft |
Metal |
|
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| Bushing |
Metal |
|
|
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| Terminal Configuration |
Axial PC Pins |
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| Resolution Range |
32, 64, 128, 256, 512 PPR, and 1024 states |
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| Rotational Speed |
Up to 10,000 RPM |
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| Interface Compatibility |
TTL, CMOS |
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| Rotational Life |
100 million and 50 million shaft revolutions |
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| Material Declaration Sheet |
EMS22
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