Model 552
Vishay Spectrol
(22.2 mm) Three Turn Wirewound
Upper Grade Precision Potentiometer
FEATURES
•
Large range of ohmic values: 5
Ω
to 20 kΩ
•
Bushing mount or servo mount designs are available
•
Gangable up to 3 sections
•
Extra taps available upon request
7
/
8
"
ELECTRICAL SPECIFICATIONS
PARAMETER
Total Resistance
Tolerance 50
Ω
and Above
Below 50
Ω
Linearity (Independent)
Total Resistance
5
Ω
to 500
Ω
500
Ω
to 2 kΩ
2 kΩ and Above
Noise
Electrical Rotation
Power Rating
Section 1
Additional Section
Insulation Resistance
Dielectric Strength
Absolute Minimum Resistance
End Voltage
Phasing (CCW End Points)
Taps (Extra)
STANDARD RANGE
5
Ω
to 20 kΩ
±3%
±5%
STANDARD
± 0.25 %
± 0.25 %
± 0.25 %
100
Ω
ENR
1080° + 4° - 0°
1.0 W at 70 °C ambient to zero at 125 °C
75 % of the rating of section 1 (0.75 W at 70 °C)
1000 MΩ minimum, 500 V
DC
1000 V
RMS
minimum, 60 Hz
Linearity x total resistance or 0.5
Ω,
whichever is greater
Linearity x total applied voltage for total resistance
above 20
Ω,
2.0 % of total applied voltage for 20
Ω
and below
Additional sections phased to section 1 within ± 2°
16 available as special, standard tolerance ± 2°
SPECIAL
45 kΩ
±1%
±3%
BEST PRACTICAL
± 0.25 %
± 0.20 %
± 0.125 %
ORDERING INFORMATION/DESCRIPTION
The Model 552 can be ordered from this data sheet with a variety of alternate characteristics, as shown. For most rapid service on your
order, please state:
552
MODEL
B
MOUNTING
B:
Bushing
S:
Servo
1
NUMBER OF SECTIONS
From 1 up to 3
10K
OHMIC VALUE OF
SECTION N
O
1
BO1
PACKAGING
Box of 1 piece
Other characteristics will be standard as described on this data sheet. 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
552
MODEL
B
STYLE
1
NUMBER OF SECTIONS
103
OHMIC VALUE OF
SECTION N
O
1
B01
PACKAGING
Document Number: 57067
Revision: 10-Jul-07
For technical questions, contact: sfer@vishay.com
www.vishay.com
129
Model 552
Vishay Spectrol
7
/
(22.2 mm) Three Turn Wirewound
Upper Grade Precision Potentiometer
BUSHING MOUNT
8
"
DIMENSIONS
in inches (millimeters)
1
0.948
(24.08)
± 0.010
0.687
(17.45)
0.312
(7.92)
± 0.015
± 0.031
± 0.015
± 10°
+ 0.0000
0.168 MIN.
(4.27)
2
1
3
45°
0.172 TYP.
(4.37)
Ø 0.1248 TYP.
- 0.0003
(3.17)
0.875
(22.22)
± 0.015
0.594 R
MAX.
(15.09)
0.062
MTG. FACE
± 0.015
Ø 0.281
- 0.001
(7.14)
1
/
4
+ 0.000
- 32 UNEF 2A
SERVO MOUNT
1
1.036
(26.31)
0.257 MIN.
(6.53)
± 0.010
± 0.031
0.375
(9.52)
0.057 MIN.
(1.45)
0.062
(1.57)
0.062
(1.57)
2
1
3
+ 0.0000
- 0.0005
Ø 0.7500
(19.05)
Ø 0.875
(22.22)
2
1
CW
3
Ø 0.750 MAX.
(19.05)
SCHEMATIC
MTG. FACE
1
TOLERANCES: UNLESS OTHERWISE NOTED.
DECIMALS ± 0.005 ANGLES ± 2°
ADD 0.782 ± 0.002 (19.86) FOR EACH
ADDITIONAL SECTION
MECHANICAL SPECIFICATIONS
PARAMETER
Mechanical Rotation
Bearing Type: Servo Mount
Bushing Mount
Torque (Maximum)
Servo: 1 Section
Bushing: 1 Section
Each Additional Section
Mechanical Runouts (Maximum)
Shaft Runout (TIR/in)
Pilot Dia. Runout (TIR)
Lateral Runout (TIR)
Shaft End Play
Shaft Radial Play
Weight (Maximum): Single Section
Additional Section
Stop Strength
Ganging
Moment of Inertia
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)
0.75 oz. (21.7 g)
0.60 oz. (17.0 g)
100 oz. - in static (7.2 kg - cm)
3 sections maximum, terminal alignment added
sections within ± 10° of section 1 terminals
0.30 g - cm
2
per section maximum
1080° + 10° - 0°
Ball bearing
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)
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130
For technical questions, contact: sfer@vishay.com
Document Number: 57067
Revision: 10-Jul-07
Model 552
7
/
(22.2 mm) Three Turn Wirewound
Upper Grade Precision Potentiometer
8
"
Vishay Spectrol
MATERIAL SPECIFICATIONS
Housing
Lids
Shaft
Terminals
Clamp Ring
Bushing Mount Hardware
Lockwasher Internal Tooth:
Panel Nut:
Glass filled phenolic (black)
Aluminum, anodized
Stainless steel, non magnetic,
non-passivated
Brass, gold plated
Stainless steel
ENVIRONMENTAL SPECIFICATIONS
Vibration
Shock
Salt Spray
Rotational Life
Load Life
15 g thru 2000 Hz
50 g
96 h
600 000 shaft revolutions
900 h
- 65 °C to + 125 °C
Steel, nickel plated
Brass, nickel plated
Operating Temperature Range
MARKING
Unit
Identification
Units will be marked with Vishay Spectrol name and model no, resistance and resistance tolerance,
linearity, terminal identification, and date code
POWER RATING CHART
(Ratings for cup N
O
1.
Additional cups 75 % of values shown)
RESISTANCE ELEMENT DATA
STANDARD
RESISTANCE
VALUES
(Ω)
5
RESO-
LUTION
(%)
0.265
0.182
0.155
0.150
0.125
0.116
0.103
0.089
0.071
0.057
0.044
0.036
0.031
OHMS
PER
TURN
0.013
0.018
0.031
0.075
0.125
0.232
0.517
0.886
1.411
2.828
4.381
7.199
14.170
MAXIMUM MAXIMUM
WIRE
CURRENT VOLTAGE
TEMP.
AT 70 °C ACROSS
COEF.
COIL
AMBIENT
(ppm/°C)
(V)
(mA)
447
316
224
141
100
70.7
44.7
31.6
22.4
14.1
10.0
7.07
4.71
2.24
3.16
4.48
7.05
10.0
14.1
22.4
31.6
44.8
70.5
100
141
212
800
800
800
180
20
20
20
20
20
20
20
20
20
3
RATED POWER IN W
10
2
20
50
100
200
1
STANDARD 125 °C
SPECIAL 150 °C
500
1K
2K
5K
0
20
40
60
80
100
120
140
160
10K
20K
45K
AMBIENT TEMPERATURE IN °C
Document Number: 57067
Revision: 10-Jul-07
For technical questions, contact: sfer@vishay.com
www.vishay.com
131
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
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 herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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1
