Model 402
Vishay Spectrol
Not for New Design
3" (76.2 mm) Single Turn Wirewound
Precision Potentiometer
FEATURES
•
Large range of ohmic values: 10
Ω
up to 150 kΩ
•
Bushing mount, servo mount and screwing
mount available
This Model 402 is only for maintenance purposes. It is not
recommended for new designs and will be obsolete in a near
future.
•
Extra taps upon request
•
Gangable up to 6 sections
RoHS
COMPLIANT
ELECTRICAL SPECIFICATIONS
PARAMETER
Total Resistance:
Tolerance: 100
Ω
and Above
Below 100
Ω:
Absolute Minimum Resistance
End Voltage
Linearity (Independent)
Total Resistance
10
Ω
to 200
Ω
200
Ω
to 2 kΩ
2 kΩ to 10 kΩ
10 kΩ and Above
Noise
Electrical Angle
Power Rating
Section 1
Additional Section
Insulation Resistance
Dielectric Strength
Taps (Extra)
Phasing (CCW End Points)
STANDARD
10
Ω
to 100 kΩ
±3%
±5%
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 voltage for
20
Ω
and below
STANDARD
± 0.50 %
± 0.25 %
± 0.25 %
± 0.25 %
100
Ω
ENR
350° ± 2°
6.0 W at 70 °C ambient derated to zero at 125 °C
75 % of the rating of section 1 (4.5 W at 70 °C)
1000 MΩ minimum 500 V
DC
1000 V
RMS
, 60 Hz
37 available as special, standard tolerance ± 1°
Additional sections phased to section 1 within ± 1°
BEST PRACTICAL
± 0.25 %
± 0.15 %
± 0.10 %
± 0.075 %
SPECIAL
150 kΩ
±1%
±3%
ORDERING INFORMATION/DESCRIPTION
The Model 402 can be ordered from this specification sheet with a variety of alternate characteristics, are as shown above. For most rapid
service on your order, please state:
402
MODEL
B
MOUNTING TYPE
B:
Bushing
S:
Servo
C:
Screw
1
NUMBER OF SECTIONS
From 1 up to 6 (Max.)
100K
OHMIC VALUE
BO1
PACKAGING
Box of 1 piece
Other characteristics will be standard as decribed 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
402
MODEL
C
MOUNTING
TYPE
C:
Screw
2
NUMBER OF
SECTIONS
101
OHMIC VALUE
Section N
O
1
101 = 100
Ω
For technical questions, contact: sfer@vishay.com
104
OHMIC VALUE
Section N
O
2
104 = 100 kΩ
B01
PACKAGING
Box of
1 piece
Document Number: 57061
Revision: 15-Jun-07
www.vishay.com
106
Not for New Design
3" (76.2 mm) Single Turn Wirewound
Precision Potentiometer
DIMENSIONS
in inches (millimeters)
0.625
(15.88)
0.312 MIN. (7.92)
1
0.062
(1.57)
± 0.010
± 0.031
Model 402
Vishay Spectrol
SCREW MOUNT: 402C
9°
TYP.
3
1
2
1.700 R MAX.
(43.18)
± 5°
0.800 (20.32)
+ 0.0000
Ø 0.7500 (19.05) MTG.
- 0.0005
+ 0.0000
Ø 0.2497
- 0.0003
(6.34)
45°
± 0.015
Ø 3.000
(76.20)
1.640 R
(41.66)
MAX.
MTG. FACE
8 - 32 UNC - 2B 0.187 ± 0.015
DEEP (4.15)
3 HOLES EQUALLY SPACED
(SCREW MOUNT ONLY)
Ø 2.250 B.C (57.15)
SERVO MOUNT: 402S
± 0.010
BUSHING MOUNT: 402B
1
± 0.015
0.705
(17.91)
0.375
(9.52)
0.062
(1.57)
± 0.010
1
0.340 MIN.
(8.64)
0.831
(21.11)
± 0.031
0.875
(22.22)
± 0.031
0.625 (15.83)
0.073 MIN. (1.85)
+ 0.0000
0.093 (2.36)
Ø 0.2497
- 0.0003
(6.34)
0.062 (1.57)
+ 0.0000
- 0.0003
0.239 MIN.
(6.07)
0.2497
- 0.0003
(6.34)
+ 0.0000
Ø 0.5937 MTG.
- 0.0010
(15.08)
+ 0.0000
± 0.15
3.000
(76.20)
± 0.0005
± 0.015
Ø 2.8750
MTG.
(73.02)
2
Ø 3.000
(76.20)
1
CW
3
Ø 3.000
(76.20)
SCHEMATIC
MTG. FACE
1
/
2
-
32 UNEF-2A
Ø 2.812 MAX.
(71.42)
MTG. FACE
1
± 0.002
ADD 0.500 (12.70) FOR EACH ADDITIONAL SECTION.
MECHANICAL SPECIFICATIONS
PARAMETER
Rotation
Bearing Type
Servo and Screw Mount:
Bushing Mount
Ganging
Torque (Maximum)
Mounting:
Servo or Screw
1 Section
Bushing 1 Section
Each additional Section
Runouts (Maximums)
Shaft (TIR/In)
Pilot dia (TIR)
Lateral (TIR)
Shaft End Play
Shaft Radial Play
Moment of Inertia
Weight (Maximums)
Each Additional Section:
Document Number: 57061
Revision: 15-Jun-07
360° (continuous)
Ball bearing
Sleeve bearing
6 sections maximum
terminal alignment, added sections, within ± 10°
of section 1 terminals
STARTING
RUNNING
0.6 oz. - in (43.20 g - cm)
1.1 oz. - in (79.21 g - cm)
1.1 oz. - in (79.21 g - cm)
1.9 oz. - in (136.82 g - cm)
0.5 oz. - in (36.00 g - cm)
0.8 oz. - in (57.61 g - cm)
BUSHING
SERVO
0.002" (0.05 cm)
0.002" (0.05 cm)
0.002" (0.05 cm)
0.002" (0.05 cm)
0.005" (0.13 cm)
0.004" (0.10 cm)
0.005" (0.13 cm)
0.005" (0.13 cm)
0.003" (0.08 cm)
0.002" (0.05 cm)
2
per section maximum
4.0 g - cm
Single section: 7.0 oz. (198.45 g)
2.0 oz. (56.70 g)
For technical questions, contact: sfer@vishay.com
www.vishay.com
107
Model 402
Vishay Spectrol
Not for New Design
3" (76.2 mm) Single Turn Wirewound
Precision Potentiometer
ENVIRONMENTAL SPECIFICATIONS
Vibration
Shock
Salt Spray
Rotational Life
Load Life
Steel, nickel plated
Brass, nickel plated
Temperature Range
15 g thru 2000 CPS
50 g
96 h
1 million shaft revolutions
900 h
- 55 °C + 125 °C
MATERIAL SPECIFICATIONS
Housing and Lids
Shaft and Clamp Rings
Terminals
Bushing Mount Hardware
Lockwasher Internal Tooth:
Panel Nut:
Aluminum, anodized
Stainless steel, non-magnetic
non-passivated
Brass, plated for solderability
MARKING
Unit
Identification
Units shall be marked with Vishay Spectrol name, model no, data code and on each section, resistance, resistance
tolerance, linearity and terminal identification
POWER RATING CHART
(Ratings for cup No. 1.
Additional cups 75 % of values shown)
RESISTANCE ELEMENT DATA
RESISTANCE
VALUES
(Ω)
MAXIMUM MAXIMUM
WIRE
RESO- OHMS CURRENT VOLTAGE
TEMP.
AT 70 °C ACROSS
LUTION PER
COEF.
COIL
TURN AMBIENT
(%)
(ppm/°C)
(V)
(mA)
0.160
0.120
0.094
0.106
0.091
0.072
0.057
0.056
0.042
0.034
0.025
0.019
0.018
0.023
0.016
0.024
0.047
0.106
0.181
0.361
0.575
1.12
2.09
3.42
5.07
9.41
18.0
34.4
775
548
347
245
173
110
77.5
54.8
34.6
24.5
17.3
11.0
7.74
6.32
7.74
10.9
17.3
24.5
34.7
54.5
77.4
109
173
245
347
545
775
949
800
800
800
20
20
20
20
20
20
20
20
20
20
20
10
10
20
50
100
200
500
1K
2K
5K
10K
20
40
60
80
100
120
140
160
RATED POWER IN W
8
6
4
2
0
STANDARD 125 °C
SPECIAL 150 °C
20K
50K
100K
150K
AMBIENT TEMPERATURE IN °C
www.vishay.com
108
For technical questions, contact: sfer@vishay.com
Document Number: 57061
Revision: 15-Jun-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
www.vishay.com
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