HD25 Product Description
The HD25 is a rugged optical incremental shaft encoder designed for heavy-duty industrial applications. The housing, machined from a solid billet aluminum block and finished with clear anodizing, conforms to the industrial standard size 25 package. Size 25 encoders are widely used and considered the backbone of feedback devices found in factory automation and industrial applications. The HD25 will drop directly into existing applications to provide a superior solution at a competitive cost.
Product Specifications
View here or download the specifications
ENVIRONMENTAL
| Parameter |
Value |
|
Operating Temperature
Low voltage version, CPR < 3600
High voltage version, CPR < 3600
Low voltage version, CPR ≥ 3600
High voltage version, CPR ≥ 3600
|
-40C to 100C
-40C to 85C
-25C to 100C
-25C to 85C |
Humidity
Non-sealed
Sealed |
98% non-condensing
100% condensing (NEMA IP65) |
| Vibration (10 to 2kHz, sinusoidal) |
20G |
| Shock (6 milliseconds, half-sine) |
75G |
Electrostatic Discharge
Single-ended (-S version), IEC 61000-4-2
Differential (-D version), Human Body Model |
± 4 kV
± 2 kV |
MECHANICAL
| Parameter |
Value |
| Size |
NEMA size 25 |
| Housing and Cover Material |
Anodized aluminum |
| Shaft Material |
Stainless steel |
| Weight |
17 oz. |
| Shaft Diameter |
0.3748 in. (+0.0000 in. -0.0003 in.) |
| Shaft Optional Flat Size |
.08 in. long x .03 in. deep |
| Max. Acceleration |
100000 rad / sec² |
Max. Shaft Speed (1)
Non-sealed (mechanical)
Sealed (mechanical) |
15000 rpm
6000 rpm |
Shaft Torque
Non-sealed
Sealed |
< 0.5 in-oz
3.5 in-oz typical |
Max. Shaft Load
Axial
Radial |
40 lb.
35 lb. |
| Max. Shaft Runout |
0.0003 in. T.I.R. |
| Bearing Life @ 4 Pound Load |
2.3 x 10^9 revolutions |
| Moment of Inertia |
2.8 x 10^-4 oz-in-sec² |
| Technical Bulletin TB1001 - Shaft and Bore Tolerances |
Download |
(1) The maximum speed due to electrical considerations is dependent on the CPR. See the EM1 and EM2 product pages.
PHASE RELATIONSHIP
B leads A for clockwise shaft rotation, and A leads B for counterclockwise rotation viewed from the shaft side of the encoder.
ELECTRICAL
- Specifications apply over the entire operating temperature range.
- Typical values are specified at 25°C.
- Output driver IC: ET7272B
- For complete details, see the EM1 and EM2 product pages.
| PARAMETER |
MIN. |
TYP. |
MAX. |
UNITS |
CONDITIONS |
Supply Voltage (Vs)
Low Voltage Version
High Voltage Version |
4.5
9.5 |
5.0 |
5.5
30 |
V |
|
| Supply Current |
|
|
138 |
mA |
|
| Low-level Output |
|
0.4 |
0.5 |
V |
IOL = 20mA |
| High-level Output |
|
Vs - 2.0 |
|
V |
IOH = -20mA |
| Output Rise/Fall Time |
|
700 |
980 |
nS |
10-PIN CONNECTOR PIN-OUT
| PIN |
DESCRIPTION |
| A |
A+ channel |
| B |
B+ channel |
| C |
Index+ |
| D |
+VDC |
| E |
NC |
| F |
Common |
| G |
Case ground |
| H |
A- channel |
| I |
B- channel |
| J |
Index- |
PRODUCT CHANGE NOTIFICATIONS
| Title |
Date |
Description |
Download |
| HB5M, HB6M & HD25 - PCN 7315 |
5/17/2023 |
As part of our ongoing continuous improvement efforts, we are updating our HB5M, HB6M and HD25 series of optical encoders to make product labeling clearer and permanent. The aluminum housing of these encoders will now be anodized black, and labeling will be laser etched onto the surface, providing more contrast and legibility. Previously pin-outs were machined into the housing and product labeling was printed onto an adhesive label that was placed on the side of the product. Product labeling will also now appear on the top surface of the encoder near the pin-out labeling. |
Download |
| EM1 & EM2 Update - PCN 4199 |
1/14/2014 |
Based on our continuous process improvement program, US Digital is changing the current marking method for our EM1 and EM2 encoder modules to a serialization method. This change will allow for each module to have a unique code; the current marking method is based on a date code system that includes all encoder modules produced within a specific week / year. The serialization system will be based on a hexadecimal system. |
Download |
| EM1 LED Die - PCN 1016 |
2/7/2013 |
As part of US Digital's continual assurance of supply strategy, we have qualified additional sources for our LED die used in our EM1 encoder module, which in turn impacts all of the following products:
EM1, E2, E3, E5, E6, H1, H15, H3, H5, H6, HB5M, HB6M, HD25, PE, S1, S2, S5, S6, T5 and T6
The device specification will remain the same, i.e. there will be no change to form, fit or function of the product(s) as specified by US Digital. The appropriate quality and reliability testing has been performed on representative products to ensure normal parametric distribution, consistent with US Digital's quality and reliability standards. |
Download |
Additional Information
Product Notes
-
Cables and connectors are not included and must be ordered separately.
-
US Digital® warrants its products against defects in materials and workmanship for two years. See complete warranty for details.
Datasheets
Guides and Additional Documentation
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