Potentiometers
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647
970-2100 248-8-08-102 1 K
1
/
83
/
4
5.72 5.24 4.82 4.36 3.93
970-2102 248-8-08-252 2.5 K
1
/
83
/
4
4.62 4.23 3.89 3.52 3.17
970-2104 248-8-08-502 5 K
1
/
83
/
4
5.72 5.24 4.82 4.36 3.93
970-2106 248-8-08-103 10 K
1
/
83
/
4
5.72 5.24 4.82 4.36 3.93
970-2116 248-9-10-252 2.5 K
1
/
47
/
8
5.72 5.24 4.82 4.36 3.93
970-2118 248-9-10-502 5 K
1
/
47
/
8
4.62 4.23 3.89 3.52 3.17
970-2120 248-9-10-103 10 K
1
/
47
/
8
5.72 5.24 4.82 4.36 3.93
970-2134 249-8-08-103 10 K
1
/
83
/
4
5.72 5.24 4.82 4.36 3.93
970-2138 249-8-08-503 50 K
1
/
83
/
4
5.72 5.24 4.82 4.36 3.93
970-2140 249-8-08-104 100 K
1
/
83
/
4
5.72 5.24 4.82 4.36 3.93
970-2142 249-9-10-102 1 K
1
/
47
/
8
5.72 5.24 4.82 4.36 3.93
970-2144 249-9-10-252 2.5 K
1
/
47
/
8
5.72 5.24 4.82 4.36 3.93
970-2146 249-9-10-502 5 K
1
/
47
/
8
5.78 5.29 4.86 4.40 3.96
970-2148 249-9-10-103 10 K
1
/
47
/
8
5.72 5.24 4.82 4.36 3.93
970-2150 249-9-10-253 25 K
1
/
47
/
8
5.72 5.24 4.82 4.36 3.93
970-2152 249-9-10-503 50 K
1
/
47
/
8
5.72 5.24 4.82 4.36 3.93
970-2154 249-9-10-104 100 K
1
/
47
/
8
5.72 5.24 4.82 4.36 3.93
Models 248 and 249 Panel Control Potentiometers
The model 248/249 is a value priced panel control and has proven high performance
characteristics in a cost effective package. They are designed to become the choice when
seeking high quality, inexpensive panel or PCB mounting potentiometers. The model 248 is
conductive plastic with ±20% resistance tolerance and the 249 is cermet with
±10% tolerance. The 248 is 0.5 watts at 70¡C with a temperature coefficient of
1000 ppm/¡C. The 249 is 1.0 watts at 70¡C with a temperature coefficient of 100 ppm/¡C.
Both have 295¡ (±5¡) mechanical rotation with 265¡ (±5¡) electrical rotation. Rotational
Life: 50,000 cycles. Shaft: Plated brass. The housing and rear lid are flame retardant
plastic. Terminals: Phosphor bronze with solder plated. Operating Temperature: Ð55¡C to
+125¡C. Load Life: 1000 hours at 70¡C. Additional configurations such as rear standoffs,
solder hook terminals, rear locating lugs, audio taper and various shaft lengths in plastic or
metal are available as special order items. ManufacturerÕs literature available upon request.
Model 157 Precision Industrial Potentiometer
The model 157 features a rugged moisture resistant one piece aluminum anodized metal
housing with a rear lid, stainless steel shaft, long 2,000,000 turns rotational life, wide
operating range and solderable terminals. These 1.0 watt at 40¡C are derated to 0 watts at
125¡C. Load Life: 900 hours. Electrical Travel: 340¡ (±4¡). Mechanical Travel:
360¡ continuous. The bushing uses a sleeve bearing. Resistance Tolerance: ±20% with
600 ppm/¡C temperature coefficient. Operating Temperature: Ð55¡C to +125¡C. Optional
features that are available as special order items include mechanical stops at 340¡, internal
shaft seal, high torque,
1
/
8
" diameter shaft, shaft slot, special shaft lengths, no locating pin
and special electrical angles. ManufacturerÕs literature available upon request.
970-2050 157-1-1-102 1 K 20.81 14.12 13.01 11.77 11.00
970-2052 157-1-1-202 2 K 20.02 13.59 12.52 11.32 10.58
970-2054 157-1-1-502 5 K 21.22 14.41 13.27 12.01 11.22
970-2056 157-1-1-103 10 K 20.02 13.59 12.52 11.32 10.58
970-2058 157-1-1-203 20 K 20.02 13.59 12.52 11.32 10.58
970-2060 157-1-1-503 50 K 20.02 13.59 12.52 11.32 10.58
Shaft Shaft
Stock Mfr.Õs Ohms Dia. Length
No. Type (In.) (In.)
EACH
1-9
Stock Mfr.Õs Ohms
No. Type
EACH
1-9 10-24 25-49 50-99 100-249
970-2156 657-0-0-102 1 K 14.10 11.06 9.50 8.50
970-2158 657-0-0-202 2 K 14.10 11.06 9.50 8.50
970-2160 657-0-0-502 5 K 14.10 11.06 9.50 8.50
970-2162 657-0-0-103 10 K 14.10 11.06 9.50 8.50
970-2164 657-0-0-203 20 K 14.10 11.06 9.50 8.50
970-2166 657-0-0-503 50 K 14.10 11.06 9.50 8.50
Stock Mfr.Õs Ohms
No. Type
EACH
1-9 10-24 25-49 50-99
100-24950-9925-4910-24
Model 657 New Sealed Precision Potentiometer
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Rugged Industrial Design
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Fully Sealed Construction Provides High Immunity to Environmental Damage
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Long Life Conductive Plastic Resistor Exceeds 1,000,000 Cycles
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Wide Operating Temperature Range: Ð40¡C to +125¡C
Electrical. Total Resistance: Standard Range Ñ 1 K to 200 K; Tolerance Ñ Standard
±20%. Linearity (Independent): Standard Ñ ±5%; Special Ñ ±2%. Rotation: 240¡ ±4¡.
Power Rating: 1.0 watt at 85¡C. Dielectric Strength: 500 volts at 60 Hz minimum. Output
Smoothness: 0.2% maximum.
Visit SpectrolÕs Website at www.spectrol.com
Vishay Spectrol
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