MODEL 64
1
1/4 Square
Multiturn
Cermet Trimming
Potentiometer
ELECTRICAL
Standard Resistance Range, Ohms 10 to 1Meg
Standard Resistance Tolerance 10%
Input Voltage, Maximum 200Vdc or rms not to exceed power rating
Slider Current, Maximum 100mA or within rated power, whichever is less
Power Rating, Watts 0.25 at 85C derating to 0 at 150C
End Resistance, Maximum 2 Ohms
Actual Electrical Travel, Turns, Nominal 12
Dielectric Strength 900Vrms
Insulation Resistance, Minimum 1,000 Megohms
Resolution Essentially infinite
Contact Resistance Variation, Maximum 1% or 1 Ohms, whichever is greater
ENVIRONMENTAL
Seal 85C Fluorinert (No Leaks)
Temperature Coefficient, Maximum 100ppm/C
Operating Temperature Range 65C to +150C
Thermal Shock 5 cycles, 65C to +150C (1% RT, 1% VR)
Moisture Resistance Ten 24 hour cycles (1% RT, IR 1,000 Megohms Min.)
Shock, 6ms Sawtooth 100Gs (1% RT, 1% VR)
Vibration 20Gs, 10 to 2,000 Hz (1% RT, 1% VR)
High Temperature Exposure 250 hours at 125C (2% RT, 2% VR)
Rotational Life 200 cycles (2% RT)
Load Life at 0.25 Watts 1,000 hours at 85C (2% RT)
Resistance to Solder Heat 260C for 10 sec. (1% RT)
MECHANICAL
Mechanical Stops Clutch action, both ends
Torque, Starting Maximum 3 oz.-in. (0.021 N-m)
Weight, Nominal .014 oz. (0.40 grams)
Fluorinert is a registered trademark of 3M Company.
Specifications subject to change without notice.
Model 64
1-35TOP ADJUSTMENT (Inch/mm)
Model 64W and 64Y
.050
1.27
.165 .020
.040
1.02 4.19 0.51
.250 .020
Metal Adjustment Screw
6.35 .0.51
.070 .005
Dia. With Slot
1.78 0.13
Standard Marking
On This Surface
.020 .020
Min. Wide x Min. Deep
0.51 0.51
.040
1.02 .270 .020
6.86 0.51
.020 .172
Min.
Min.
4.37
0.51 Terminal Pins (3)
Solderable
12 3
.018 .002
0.46 .05
Note: Model 64W dimensions applicable to all models except as noted.
Model 64Y
Model 64W
C
L
C
L
.10 .10
.10
.10
2.54 2.54
2.54 2.54
.02
.092
0.51
.10
2.34
2.54
Schematic Diagram
This Surface
STANDARD RESISTANCE VALUES, OHMS
10 100 1K 10K 50K 250K
20 200 2K 20K 100K 500K
50 500 5K 25K 200K 1Meg
Model 64
1-36