Model 502
www.vishay.com
Vishay Spectrol
(22.2 mm) Ten Turn Wirewound
Upper Grade Precision Potentiometer
FEATURES
• Bushing mount and servo mount designs are available
• Large ohmic value range: 15
to 100 k
• Dual gang configuration
• Improved linearity available
• Long life > 2 million shaft revolutions
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
7
/
8
"
QUICK REFERENCE DATA
Sensor type
Output type
Market appliance
Dimensions
ROTATIONAL, multi turn wirewound
Output by turrets
Professional
7
/ "
8
(22.2 mm)
ELECTRICAL SPECIFICATIONS
PARAMETER
Total resistance
Tolerance: 100
and
above
Below 100
Linearity (independent)
15
to 50
50
to 1 k
1 k to 5 k
5 k and above
Noise
Electrical rotation
Power rating:
Additional sections
Insulation resistance
Dielectric strength
Absolute minimum resistance
End Voltage
Phasing (CCW end points)
Taps (extra)
STANDARD
15
to 100 k
±3%
±5%
STANDARD
± 0.25 %
± 0.25 %
± 0.25 %
± 0.25 %
100
ENR
3600° + 4° - 0°
2.0 W at 70 °C ambient derated to zero at 125 °C
75 % of the rating of section 1 (1.5 W at 70 °C)
1000 M minimum 500 V
DC
1000 V
RMS
, 60 Hz
Linearity x total resistance or 0.5
whichever is greater
Linearity x total applied voltage for total resistance above 20
,
2.0 % of applied voltage for
20
and below
Additional sections phased to section 1 within ± 2°
54 available as special, standard tolerance ± 2°
SPECIAL
15
to 150 k
±1%
±3%
BEST PRACTICAL
± 0.15 %
± 0.10 %
± 0.075 %
± 0.05 %
ORDERING INFORMATION/DESCRIPTION
The Model 502 can be ordered from this datasheet with a variety of alternate characteristics, as shown above. For most rapid service on
your order, please state:
502
MODEL
S
STYLE
B:
Bushing
S:
Servo
2
NUMBER OF
SECTIONS
1
or
2
10K
20K
BO1
PACKAGING
Box of 1 piece
TOTAL RESISTANCE OF EACH SECTION
Beginning with the section nearest
the mounting end
Other characteristics will be standard as described on this datasheet. If special characteristics are required, such as: special linearity
tolerance, special resistance tolerance, extra taps, non-linear functions, etc., please state these on your order and allow additional lead time
for delivery.
SAP PART NUMBERING GUIDELINES
502
MODEL
S
STYLE
2
NUMBER OF
SECTIONS
103
OHMIC VALUE
SECTION N° 1
203
OHMIC VALUE
SECTION N° 2
B01
PACKAGING
Revision: 09-Apr-13
Document Number: 57064
1
For technical questions, contact:
sferprecisionpot@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Model 502
www.vishay.com
Vishay Spectrol
DIMENSIONS
in inches (millimeters)
BUSHING MOUNT: 502B/502-1
1
± 0.010
1.448
(36.78)
0.168 MIN.
(4.27)
0.312
(7.92)
3
0.687
(17.45)
± 0.015
± 0.031
2
± 0.015
1
Ø 0.1248
(3.17)
+ 0.0000
TYP.
- 0.0003
45°
± 10°
0.172 TYP.
(4.37)
± 0.015
Ø 0.875
(22.22)
0.594 R
(15.09)
MAX.
± 0.015
0.062
(1.57)
MTG. FACE
1
/
4
Ø 0.281
- 0.001
(7.14)
- 32 UNEF 2A
+ 0.000
SERVO MOUNT: 502S/502-2
1
1.536
(39.01)
± 0.010
± 0.031
0.257 MIN.
(6.53)
0.375
(9.52)
0.057 MIN.
(1.45)
0.062
(1.57)
0.062
(1.57)
2
1
3
+ 0.0000
- 0.0005
2
Ø 0.875
(22.22)
CW
3
1
ADD 1.282 ± 0.002 (32.56) FOR EACH
ADDITIONAL SECTION
0.750 MAX.
(19.05)
Ø 0.7500
(19.05)
1
SCHEMATIC
MTG. FACE
TOLERANCES: UNLESS OTHERWISE NOTED.
DECIMALS ± 0.005 ANGLES ± 2°
MECHANICAL SPECIFICATIONS
PARAMETER
Rotation
Bearing type
Torque (maximums)
Servo section 1
Bushing section 1
Each additional section
Mechanical runout (maximums):
Shaft runout (TIR)
Pilot dia. runout (TIR)
Lateral runout (TIR)
Shaft end play
Shaft radial play
Weight:
Single section
Each additional section
Stop strength
Ganging
Moment of inertia
Revision: 09-Apr-13
SERVO
Ball bearing
STARTING
0.4 oz. - in (28.8 g - cm)
0.5 oz. - in (36.0 g - cm)
0.3 oz. - in (21.6 g - cm)
SERVO
0.002" (0.05 cm)
0.002" (0.05 cm)
0.002" (0.05 cm)
0.005" (0.13 cm)
0.002" (0.05 cm)
3600° + 10° - 0°
BUSHING MOUNT
Sleeve bearing
RUNNING
0.3 oz. - in (21.6 g - cm)
0.4 oz. - in (28.8 g - cm)
0.2 oz. - in (14.4 g - cm)
BUSHING
0.002" (0.05 cm)
0.002" (0.05 cm)
0.005" (0.13 cm)
0.005" (0.13 cm)
0.003" (0.08 cm)
1.20 oz. (34.0 g)
0.80 oz. (22.7 g)
100 oz. - in, static (7.2 kg - cm)
2 sections, terminal alignment, added sections, within ± 10° of section 1 terminals
0.45 g - cm
2
per section maximum
Document Number: 57064
2
For technical questions, contact:
sferprecisionpot@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Model 502
www.vishay.com
Vishay Spectrol
ENVIRONMENTAL SPECIFICATIONS
Vibration
Shock
Salt Spray
Rotational Life
Load Life
Operating Temperature Range
15
g
thru 2000 CPS
50
g
96 h
2 million shaft revolutions
900 h
- 55 °C to + 125 °C
MATERIAL SPECIFICATIONS
Housing
Lids
Shaft
Terminals
Clamp ring
Bushing mounting hardware
Lockwasher internal tooth:
Panel nut:
Phenolic (black) glass filled
Aluminum, anodized
Stainless steel, non-magnetic,
non-passivated
Brass, plated for solderability
Stainless steel
Steel, nickel plated
Brass, nickel plated
RESISTANCE ELEMENT DATA
STANDARD
OHMS
RESISTANCE RESO-
PER
VALUES
LUTION
TURN
()
(%)
15
20
50
100
200
500
1K
2K
5K
0.088
0.066
0.050
0.050
0.049
0.037
0.034
0.029
0.023
0.017
0.016
0.011
0.010
0.010
0.013
0.013
0.025
0.050
0.098
0.185
0.339
0.571
1.173
1.731
3.142
5.639
10.325
14.170
MAXIMUM MAXIMUM
WIRE
CURRENT VOLTAGE
TEMP.
ACROSS
AT 70 °C
COEF.
COIL
AMBIENT
(ppm/°C)
(V)
(mA)
365
316
200
141
100
63.2
44.7
31.6
20.0
14.1
10.0
6.32
4.47
3.65
5.48
6.32
10.0
14.1
20.0
31.6
44.7
63.2
100
141
200
316
447
548
800
800
800
180
20
20
20
20
20
20
20
20
20
20
MARKING
Unit
identification
Units shall be marked with Vishay spectrol
name and model no, resistance and resistance
tolerance, linearity, terminal identification, and
date code.
Example of a marking for a standard part:
502-11050
POWER RATING CHART
(Ratings for cup No. 1. Additional cups 75 % of values
shown)
6
5
10K
20K
50K
100K
150K
RATED POWER IN W
4
3
2
1
0
SPECIAL 150 °C
STANDARD 125 °C
20
40
60
80
100
120
140
160
AMBIENT TEMPERATURE IN °C
Revision: 09-Apr-13
Document Number: 57064
3
For technical questions, contact:
sferprecisionpot@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000
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