Model 702
Vishay Spectrol
7
/
8
"
(22.2 mm) Single Turn Wirewound
Precision Potentiometer
FEATURES
•
Large range of ohmic values: from 5
Ω
up to
100 kΩ
•
Bushing mount or servo mount types are
available
•
Extra taps upon request
•
Gangable up to 6 sections
RoHS
COMPLIANT
ELECTRICAL SPECIFICATIONS
PARAMETER
Total Resistance:
(Bushing 91 kΩ max.)
Tolerance:
20
Ω
and above
Below 20
Ω
Absolute Minimum Resistance
End Voltage
Linearity (Independent)
5
Ω
to 100
Ω
100
Ω
to 500
Ω
500
Ω
to 5 kΩ
5 kΩ and Above
Noise
Electrical Angle
Power Rating
Section 1
Additional Sections
Insulation Resistance
Dielectric Strength
Taps (Extra)
Phasing (CCW End Points)
STANDARD
5
Ω
to 20 kΩ
±3%
±5%
SPECIAL
5
Ω
to 100 kΩ
±1%
±3%
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
STANDARD
± 1.0 %
± 1.0 %
± 0.5 %
± 0.5 %
100
Ω
ENR
350° ± 2°
1.25 W at 70 °C ambient derated to zero at 125 °C
75 % of the rating of section 1 (0.94 W at 70 °C)
1000 MΩ minimum 500 V
DC
1000 V
RMS
, 60 Hz
9 available as special, standard tolerance ± 2°
Additional sections phased to section 1 within ± 1°
BEST PRACTICAL
± 0.75 %
± 0.50 %
± 0.35 %
± 0.25 %
ORDERING INFORMATION/DESCRIPTION
The Model 702 can be ordered from this data sheet with a variety of alternate characteristics, as shown. For most rapid service on your
order, please state:
702
MODEL
B
MOUNTING TYPE
B:
Bushing
S:
Servo
1
NUMBER OF SECTIONS
From 1 up to 6 sections
(max.)
20K
OHMIC VALUE
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
702
MODEL
S
MOUNTING
TYPE
S:
Servo
2
NUMBER OF
SECTIONS
050
OHMIC VALUE
Section N
O
1
050 = 5
Ω
100
OHMIC VALUE
Section N
O
2
100 = 10
Ω
B01
PACKAGING
Box of
1 piece
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112
For technical questions, contact: sfer@vishay.com
Document Number: 57069
Revision: 12-Jul-07
Model 702
7
/
8
"
(22.2 mm) Single Turn Wirewound
Precision Potentiometer
Vishay Spectrol
DIMENSIONS
in inches (millimeters)
± 0.010
± 0.031
BUSHING MOUNT: 702B
+ 0.0000
1
0.687
(17.45)
0.500
(12.70)
0.250
(6.35)
0.062
(1.57)
3
30°
TYP.
1
2
Ø 0.4062 MTG.
- 0.0010
(10.32)
+ 0.0000
0.308 MIN. TYP
(7.82)
Ø 0.1248
- 0.0003
(3.17)
Ø 0.875
(22.22)
± 0.015
MTG. FACE
3
/
8
- 32 UNEF - 2A
R 0.640
(16.26)
MAX.
0.062
(1.57)
0.062
(1.57)
0.062
(1.57)
+ 0.0000
± 0.010
± 0.031
1
0.687
(17.45)
0.500
(12.70)
SERVO MOUNT: 702S
± 0.015
2
1
CW
3
0.875
(22.22)
Ø 0.7500
- 0.0005
(19.05)
Ø 0.875
(22.22)
+ 0.0000
SCHEMATIC
Ø 0.750
MAX.
(19.05)
MTG. FACE
Ø 0.1248
- 0.0003
(3.17)
1
ADD 0.500 (12.70) ± 0.002 FOR EACH
ADDITIONAL SECTION
TOLERANCES: UNLESS OTHERWISE NOTED.
DECIMALS ± 0.005 ANGLES ± 2°
MECHANICAL SPECIFICATIONS
PARAMETER
Rotation
Bearing Type
Ganging
Torque (Maximum)
Servo Section 1
Bushing Section 1
Each Additional Section
Mechanical Runouts (Maximums):
Shaft Runout (TIR/In)
Pilot Dia. Runout (TIR)
Lateral Runout (TIR)
Shaft End Play
Shaft Radial Play
Moment of Inertia
Weight:
Single Section
Each Additional Section
Document Number: 57069
Revision: 12-Jul-07
SERVO
Ball bearing
360° continuous
BUSHING
Sleeve bearing
6 sections maximum Terminal alignment, added
sections within ± 10° of section 1 terminals
STARTING
0.10 oz. - in (7.20 g - cm)
0.25 oz. - in (18.00 g - cm)
0.10 oz. - in (7.20 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)
RUNNING
0.085 oz. - in (6.12 g - cm)
0.20 oz. - in (14.40 g - cm)
0.075 oz. - in (5.40 g - cm)
BUSHING
0.002" (0.05 cm)
0.002" (0.05 cm)
0.005" (0.13 cm)
0.005" (0.13 cm)
0.004" (0.10 cm)
0.12 g - cm
2
per section maximum
0.6 oz. (17.01 g)
0.2 oz. (5.67 g)
For technical questions, contact: sfer@vishay.com
www.vishay.com
113
Model 702
Vishay Spectrol
7
/ "
8
(22.2 mm) Single Turn Wirewound
Precision Potentiometer
ENVIRONMENTAL SPECIFICATIONS
Vibration
Shock
Salt Spray
15 g thru 2000 CPS
50 g
96 h
1 million shaft revolutions
900 h
MATERIAL SPECIFICATIONS
Housing and Lids
Shaft
Terminals
Bushing Mount Hardware
Lockwasher Internal Tooth:
Panel Nut:
Aluminum, anodized
Stainless steel, non-magnetic
non-passivated
Brass, plated for solderability
Steel, nickel plated
Brass, nickel plated
Rotational Life
Load Life
MARKING
Unit
Identification
Units shall be marked with Vishay Spectrol
name, model no and date code, and on each
section: resistance, resistance tolerance,
linearity and terminal identification
Operating Temperature
Range:
- 55 °C + 125 °C
POWER RATING CHART
(Ratings for cup No. 1.
Additional cups 75 % of values shown)
3
RESISTANCE ELEMENT DATA
STANDARD
RESISTANCE
VALUES
(Ω)
5
RESO-
LUTION
(%)
0.460
0.378
0.374
0.300
0.271
0.235
0.206
0.156
0.127
0.101
0.95
0.90
0.75
0.65
OHMS
PER
TURN
0.023
0.038
0.075
0.150
0.271
0.478
1.03
1.56
2.55
5.07
8.50
17.9
37.9
64.5
MAXIMUM MAXIMUM
WIRE
CURRENT VOLTAGE
TEMP.
AT 70 °C ACROSS
COEF.
COIL
AMBIENT
(ppm/°C)
(V)
(mA)
500
354
250
158
112
79.1
50.0
35.4
25.0
15.8
11.2
7.90
5.00
3.54
2.50
3.54
5.00
7.90
11.2
15.8
25.0
35.4
50.0
79.0
112.0
158.0
250.0
354.0
800
800
180
180
20
20
20
20
20
20
20
20
20
20
RATED POWER IN W
10
2
1.5
1
SPECIAL (150 °C)
STANDARD (125 °C)
20
50
100
200
500
1K
2K
5K
40
60
80
100
120
140
160
0
20
10K
20K
50K
100K
AMBIENT TEMPERATURE IN °C
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114
For technical questions, contact: sfer@vishay.com
Document Number: 57069
Revision: 12-Jul-07
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
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