Document Number: 57073
Revision 16-Jul-03
www.vishay.com
110
Model 830, 860
Vishay Spectrol
For technical questions, contact sfer@vishay.com
FEATURES
830: 15 to 50K, Three-Turn
860: 20 to 200K, Ten-Turn
1 - 13/16” (46mm) Three and Ten Turn Wirewound
Precision Potentiometer
PARAMETER MODEL 830 MODEL 860
Total Resistance
Standard Range 15 to 50K20 to 200K
Special to 150KSpecial to 500K
Tolerance: STANDARD SPECIAL
200 and above ± 3% ± 1%
Below 200Ω± 5% ± 3%
Linearity (Independent) ± 0.25% standard
15 to 1KΩ± 0.15%
1K to 5KΩ± 0.10%
5K to 25KΩ± 0.075%
25K and above ± 0.05%
20 to 50± 0.15%
50 to 200± 0.10%
200 to 5K± 0.05%
5K and above ± 0.025%
Noise 100 ENR for both models
Rotation 1080° + 4° - 0°3600° + 4° - 0°
Power Rating 3.0 watts at 40°C 8.0 watts at 40°C
derated to zero at 125°C derated to zero at 125°C
Insulation Resistance 1000M minimum 500VDC
Dielectric Strength 1000VRMS, 60Hz
Absolute Minimum Resistance Not to exceed linearity x total resistance or 1,
whichever is greater
End Voltage 0.5% of total applied voltage maximum
Phasing CCW End Points sect. 2 phased to
sect 1 within 1°
Taps (Extra) 42 available as special 108 available as special
standard tolerance ± 1°standard tolerance ±1°
ELECTRICAL SPECIFICATIONS
ORDERING INFORMATION
Models 830 and 860 can be ordered from this data sheet with a variety of alternate characteristics, as shown. For most rapid service on
your order, please state:
830, 860 1 1 XXX
MODEL BUSHING MOUNT NUMBER OF SECTIONS RESISTANCE OF EACH
SECTION
Beginning with the section nearest
the mounting end
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.
www.vishay.com
111
Model 830, 860
Vishay Spectrol
Document Number: 57073
Revision 16-Jul-03
For technical questions, contact sfer@vishay.com
DIMENSIONS in inches (millimeters)
MECHANICAL SPECIFICATIONS
PARAMETER 830 860
Rotation 1080° + 4° - 0°3600° + 4° - 0°
Bearing Type Sleeve Bearing
Torque (maximums): Starting STARTING RUNNING
Section 1 1.75 oz - in(126,02gm - cm) 1.26 oz - in (90.01gm - cm)
Section 2 2.55 oz - in(183,62gm - cm) 1.85 oz - in (133,21gm - cm)
Runouts (Maximums)
Shaft(TIR) 0.002 in (0.05cm)
Pilot Dia (TIR) 0.002 in (0.05cm)
Lateral (TIR) 0.005 in (0.13cm)
Shaft End Play 0.002 in min 0.010 in Maximum (0.05 - 0.25cm)
Shaft Radial Play 0.003 in Maximum (0.08cm)
Weight (maximums)
Single Section 3.0 oz (85.05gm) 4.5 oz (127.58gm)
Additional Section 2.5 oz (70.80gm) 4.0 oz (113.40gm)
Stop Strength 750 oz - in (static) (54.01Kgm - cm)
Ganging 2 sections maximum ears of clamp band between
sections positioned 45°, ± 10° CCW from
terminal center line
Moment Inertia 5.5gm - cm2 Maximum 15.0gm - cm2 Maximum
1 - 13/16” (46mm) Three and Ten Turn Wirewound
Precision Potentiometer
2.000
(50.80)
± 0.015
0.250 MIN
(6.35)
0.062
(1.57)
0.010
(0.25)
0.312
(7.92)
± 0.015
0.030 MAX
(0.76)
3/8 - 32 UNEF - 2A
1.812
(46.02)
± 0.015
Ø 0.2497
(6.34)
+ 0.0000
- 0.0003
Ø 0.4062 MTG.
(10.32)
+ 0.0000
- 0.0020
0.062
(1.57)
21 3
0.218
(5.54)
± 0.015
0.562
(14.27)
Ø 0.125
(3.18)
MTG. FACE
0.812
(20.62)
± 0.031
0.312
(7.92)
0.030
MAX
(0.76)
± 0.015
1.812
(46.02)
± 0.015
Ø 0.2497
(6.34)
+ 0.0000
- 0.0003
Ø 0.4062 MTG.
(10.32)
+ 0.0000
- 0.0020
0.062
(1.57)
0.010
(0.25)
0.062
(1.57)
0.250
MIN
(6.35)
1.218
(30.94)
± 0.015
MODEL 830 MODEL 860
12
1
2
ADD 1.010 (25.65) FOR 2 GANG UNIT
ADD 1.787 (45.39) FOR 2 GANG UNIT
± 0.010
± 0.010 TOLERANCES: OTHERWISE NOTED
DECIMALS ± 0.005 ANGLES ± 2°
SCHEMATIC
2
3
1
CW
3/8 - 32 UNEF - 2A
12 3
MTG. FACE
0.812
(20.62)
± 0.031
Document Number: 57073
Revision 16-Jul-03
www.vishay.com
112
Model 830, 860
Vishay Spectrol
For technical questions, contact sfer@vishay.com
POWER RATING CHART
ENVIRONMENTAL SPECIFICATIONS
Vibration 10g thru 500 CPS
Shock 50g
Rotational Life 500,000 shaft revolution
Load Life 900 Hours
Temperature Range
- 55°C to + 125°C
Moisture Resistant
Salt Spray 48 hours
Unit Units will be marked with Spectrol name and
Identification model no, resistance and resistance
tolerance, linearity, terminal identification,
and date code
MARKING
1 - 13/16” (46mm) Three and Ten Turn Wirewound
Precision Potentiometer
MATERIAL SPECIFICATIONS
Bushing Aluminum, nickel plated
Housing and Front Lid Molded glass filled thermoset
plastic
Rear Lid Molded glass filled nylon
Shaft Stainless steel, non magnetic,
non-passivated
Terminals Brass, plated for solderability
Mounting Hardware
Lock washer: Internal tooth Steel, nickel plated
Panel nut: Brass, nickel plated
MAXIMUM MAXIMUM
STANDARD CURRENT VOLTAGE WIRE
RESISTANCE RESO- OHMS AT 70
°
C ACROSS TEMP.
VALUES LUTION PER AMBIENT COIL COEF.
(
) (%) TURN (mA)(V) (ppm/
°
C)
MODEL 860
20 0.044 0.009 632 13 800
50 0.027 0.014 400 20 800
100 0.024 0.024 283 28 800
200 0.028 0.056 200 40 180
500 0.023 0.115 126 63 20
1K 0.018 0.182 89 89 20
2K 0.020 0.402 63 126 110
5K 0.015 0.754 40 200 20
10K 0.013 1.23 28 283 20
20K 0.010 1.97 20 400 20
50K 0.007 3.69 13 632 20
100K 0.007 6.51 8.9 894 20
200K 0.005 9.63 5.0 1,000 20
500K 0.004 20.0 2.0 1,000 20
MODEL 830
20 0.094 0.019 387 8 800
50 0.074 0.037 245 12 800
100 0.071 0.071 173 17 180
200 0.072 0.145 122 25 20
500 0.064 0.320 77 39 110
1K 0.050 0.500 55 55 110
2K 0.047 0.948 39 77 20
5K 0.035 1.73 24 125 20
10K 0.029 2.92 17 176 20
20K 0.024 4.80 12 250 20
50K 0.017 8.31 8 375 20
100K 0.015 14.5 5 600 20
150K 0.013 20.0 4 750 20
RESISTANCE ELEMENT DATA
0 20 40 60 80 100 120 140
AMBIENT TEMPERATURE IN (°C)
RATED POWER IN (WATTS)
0
2
4
6
8
10
12
860
830
Legal Disclaimer Notice
Vishay
Document Number: 91000 www.vishay.com
Revision: 08-Apr-05 1
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.