Model 830
Vishay Spectrol
Document Number: 57073 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 23-Mar-07 135
1 13/16" (46 mm) Three Turn Wirewound
Bushing Mount
FEATURES
•Gangable up to 2 sections
•Large range of ohmic values: 15 Ω to 50 kΩ
•Extra taps available upon request
•Ideally suits for all industry applications
ELECTRICAL SPECIFICATIONS
PARAMETER MODEL 830
Total Resistance
Standard Range
Tolerance:
200 Ω and Above
Below 200 Ω
15 Ω to 50 kΩ
STANDARD
± 3 %
± 5 %
SPECIAL
to 150 kΩ
SPECIAL
± 1 %
± 3 %
Linearity (Independent) ± 0.25 % standard
15 Ω to 1 kΩ
1 kΩ to 5 kΩ
5 kΩ to 25 kΩ
25 kΩ and Above
± 0.15 %
± 0.10 %
± 0.075 %
± 0.05 %
Noise 100 Ω ENR
Electrical Rotation 1080° + 4° - 0°
Power Rating 3.0 W at 40 °C derated to zero at 125 °C
Insulation Resistance 1000 MΩ minimum 500 VDC
Dielectric Strength 1000 VRMS, 60 Hz
Absolute Minimum Resistance Not to exceed linearity x total resistance or 1 Ω, 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) Available as special standard tolerance ± 1°
ORDERING INFORMATION/DESCRIPTION
Model 830 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 B 1 20K BO10
MODEL BUSHING MOUNT NUMBER OF SECTIONS RESISTANCE OF EACH SECTION PACKAGING
From 1 up to 2 sections
(maximum)
Beginning with the section nearest
the mounting end
Box of 10 pieces
SAP PART NUMBERING GUIDELINES
830 B 1 203 B10
MODEL STYLE NUMBER OF SECTIONS OHMIC VALUE OF SECTION NO 1PACKAGING
Model 830
Vishay Spectrol 1 13/16" (46 mm) Three Turn Wirewound
Bushing Mount
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 57073
136 Revision: 23-Mar-07
DIMENSIONS in inches (millimeters)
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
ADD 1.010 ± 0.010 (25.65) FOR 2 GANG UNIT
3/8 - 32 UNEF - 2A
1
23
1
TOLERANCES: OTHERWISE NOTED.
DECIMALS ± 0.005 ANGLES ± 2°
CW
SCHEMATIC
2
3
1
1
MECHANICAL SPECIFICATIONS
PARAMETER
Rotation 1080° + 4° - 0°
Bearing Type Sleeve bearing
Torque (maximums): Starting
Section 1
Section 2
STARTING
1.75 oz. - in (126.02 g - cm)
2.55 oz. - in (183.62 g - cm)
RUNNING
1.26 oz. - in (90.01 g - cm)
1.85 oz. - in (133.21 g - cm)
Runouts (Maximums)
Shaft (TIR)
Pilot Dia. (TIR)
Lateral (TIR)
Shaft End Play
Shaft Radial Play
0.002" (0.05 cm)
0.002" (0.05 cm)
0.005" (0.13 cm)
0.002" min. 0.010" max. (0.05 - 0.25 cm)
0.003" max. (0.08 cm)
Weight (maximums)
Single Section
Additional Section
3.0 oz. (85.05 g)
2.5 oz. (70.80 g)
Stop Strength 750 oz. - in (static) (54.01 kg - cm)
Ganging
2 sections maximum ears of clamp band between
sections positioned 45°, ± 10° CCW from
terminal center line
Moment Inertia 5.5 g - cm2 maximum
Model 830
1 13/16" (46 mm) Three Turn Wirewound
Bushing Mount
Vishay Spectrol
Document Number: 57073 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 23-Mar-07 137
POWER RATING CHART
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
Lockwasher:
Panel Nut:
Internal tooth steel, nickel plated
Brass, nickel plated
ENVIRONMENTAL SPECIFICATIONS
Vibration 10 g thru 500 CPS
Shock 50 g
Rotational Life 500 000 shaft revolution
Load Life 900 h
Temperature Range - 55 °C to + 125 °C
Salt Spray 48 h
MARKING
Unit
Identification
Units will be marked with Spectrol name and model no, resistance and resistance tolerance, linearity, terminal
identification, and date code
020406080 100 120 140
AMBIENT TEMPERATURE IN °C
RATED POWER IN W
0
2
4
6
8
10
12
RESISTANCE ELEMENT DATA
STANDARD
RESISTANCE
VALUES
(W)
RESO-
LUTION
(%)
OHMS
PER
TURN
MAXIMUM
CURRENT
AT 70 °C
AMBIENT
(mA)
MAXIMUM
VOLTAGE
ACROSS
COIL
(V)
WIRE
TEMP.
COEF.
(ppm/°C)
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 20
1K 0.050 0.500 55 55 20
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
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 12-Mar-12 1Document Number: 91000
Disclaimer
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operating parameters, including typical parameters, must be validated for each customer application by the customer’s
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including but not limited to the warranty expressed therein.
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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.
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