HD25 Industrial Rugged Metal Optical Encoder

Photos (5)
Mechanical Drawings (1)

HD25 Features

NEMA size 25 package
Anodized black aluminum housing
64 to 10,000 cycles per revolution (CPR)
256 to 40,000 pulses per revolution (PPR)
2-channel quadrature output with optional index
Single-ended or differential outputs
Sealed IP65 option

See more info below

Configure the HD25

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 black 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

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

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	I_OL = 20mA
High-level Output		Vs - 2.0		V	I_OH = -20mA
Output Rise/Fall Time		700	980	nS

7-PIN CONNECTOR PIN-OUT

PIN	DESCRIPTION
A	A channel
B	B channel
C	Index
D	+VDC
E	Case ground
F	Common
G	NC

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

HD25-Datasheet.pdf

Guides and Additional Documentation

SEI Absolute Encoder Communications Protocol

3D Model Downloads

Please configure your product first to download a 3D model.
(Note: The formats below will become links if there are 3D models available.)

SolidWorks Format
IGES Format
Parasolid Format
STEP Format

Product Configurator

For pricing, this product requires configuration.

Begin by completing either Option 1 or 2 below. Questions? Contact our support team.

Option 1: Configure the Product

Use the configuration tool to provide information regarding your product needs. Not sure what to do or need additional assistance? Our support team is here to help.

Option 2: Enter the Product Part Number Directly

If you know your product part number, enter it in the following field. The part number format looks something like this: E5-5000-394-IE-S-D-D-3...

To place an order please contact us directly with your part number.

For purchasing or volume discounts, please configure the part above, then use the completed part number and contact us!

Email us at sales@usdigital.com
Call us toll free in the US at 800.736.0194
Call us worldwide at 360.260.2468

Feedback

US Digital's mission is a commitment to quality and constant improvement. If you find an error to a product on this page, please let us know!