1
1-9 Model 23A, B, S
ELECTRICAL
Standard Resistance Range, Ohms 10 to 2Meg
Standard Resistance Tolerance ±20%
Input Voltage, Maximum 200 Vdc or rms not to exceed power rating
Power Rating, Watts 0.25 at 70°C derating to 0 at 125°C
End Resistance, Maximum 1% or 3 Ohms, whichever is greater
Actual Electrical Travel, Nominal 210°
Dielectric Strength 500 Vrms
Insulation Resistance, Minimum 100 Megohms
Resolution Essentially infinite
Contact Resistance Variation, Maximum 1% or 3 Ohms, whichever is greater
ENVIRONMENTAL
Seal 85°C Fluorinert® (No Leaks)
Temperature Coefficient, Maximum ±100ppm/°C (<200 Ohms, >1Meg = ±250ppm/°C)
Operating Temperature Range –55°C to +125°C
Thermal Shock 5 cycles, –55°C to +125°C (2% RT, 2% VR)
Moisture Resistance Ten 24 hour cycles (3% RT)
Shock, 6ms Sawtooth 100G’s (1% RT, 1% VR)
Vibration 20G’s, 10 to 2,000 Hz (1% RT, 1% VR)
High Temperature Exposure 250 hours at 125°C (2% RT, 2% VR)
Rotational Life 100 cycles (5% RT)
Load Life at 0.25 Watts 1,000 hours at 70°C (3% RT, 1% VR)
Resistance to Solder Heat 260°C for 10 sec. (1% RT)
MECHANICAL
Mechanical Stops Solid
Stop Strength, Minimum 4 oz.-in. (300 gr-cm)
Torque, Maximum 2 oz.-in. (150 gr-cm)
Weight, Nominal .005 oz. (0.14 grams)
MODEL 23A, B, S
4mm Square
Sealed Single Turn
Surface Mount
Cermet Trimming
Potentiometer
Fluorinert® is a registered trademark of 3M Company.
Specifications subject to change without notice.
1-10 Model 23A, B, S
TOP ADJUSTMENT (Inch/mm)
1
1-11 Model 23A, B, S
MODEL 23S (CROSS SLOT) & 23Z (STRAIGHT SLOT)
23Z
23S
SIDE ADJUSTMENT (Inch/mm)
RECOMMENDED PCB LAYOUT (Inch/mm)
1-12 Model 23A, B, S
23 A R 10K LF TR
Model Series
Pin Style
Resistance Prefix
Resistance Value
Packaging:
TR = Tape & Reel
RoHS Compliant Product Code - Optional
ORDERING INFORMATION
PACKAGING
Standard: Embossed Tape
All units oriented with #2 (slider) terminal adjacent to sprocket holes.
Pin Style A,B S
Tape Width = 12 mm 12 mm
Sprocket = 4 mm Pitch 4 mm Pitch
Capacity = 500 Units 200 Units
Reel Diameter = 7” (178 mm) 7” (178 mm)
CIRCUIT DIAGRAM
(1)
(2)
(3)
CW
NOTES
mm
INCH
English equivalents are based on 1 inch = 25.4mm
and are provided for general information only.
Tolerances unless otherwise specified:
Linear = ± 0.3 mm (.01 inches)
10 100 1K 10K 100K 1Meg
20 200 2K 20K 200K 2Meg
50 500 5K 50K 500K
STANDARD RESISTANCE VALUES, OHMS