MODEL 84
1/4” Square
Multiturn
Surface Mount
Cermet Trimming
Potentiometer
ELECTRICAL
1
Standard Resistance Range, Ohms
Standard Resistance Tolerance
Input Voltage, Maximum
Slider Current, Maximum
Power Rating, Watts
End Resistance, Maximum
Actual Electrical Travel, Turns, Nominal
Dielectric Strength
Insulation Resistance, Minimum
Resolution
Contact Resistance Variation, Maximum
ENVIRONMENTAL
10 to 1Meg
±10%
200 Vdc or rms not to exceed power rating
100mA or within rated power, whichever is less
0.25 at 85°C derating to 0 at 150°C
2 Ohms
12
900 Vrms
1,000 Megohms
Essentially infinite
1% or 1 Ohms, whichever is greater
Seal
Temperature Coefficient, Maximum
Operating Temperature Range
Thermal Shock
Moisture Resistance
Shock, 6ms Sawtooth
Vibration
High Temperature Exposure
Rotational Life
Load Life at 0.25 Watts
Resistance to Solder Heat
Temperature Exposure, Maximum
MECHANICAL
85°C Fluorinert® (No Leaks)
±100ppm/°C (<100 Ohms = ±250ppm/°C)
–65°C to +150°C
5 cycles, –65°C to +150°C (1%
∆RT,
1%
∆VR)
Ten 24 hour cycles (1%
∆RT,
IR 100 Megohms Min.)
100G’s (1%
∆RT,
1%
∆VR)
20G’s, 10 to 2,000 Hz (1%
∆RT,
1%
∆VR)
250 hours at 150°C (2%
∆RT,
2%
∆VR)
200 cycles (3%
∆RT)
1,000 hours at 85°C (2%
∆RT)
260°C for 10 sec. (1%
∆RT)
215°C for 3 min. (1%
∆RT)
Mechanical Stops
Torque, Starting Maximum
Weight, Nominal
Fluorinert® is a registered trademark of 3M Company.
Specifications subject to change without notice.
Clutch action, both ends
3 oz.-in. (0.021 N-m)
.014 oz. (.40 grams)
1-73
Model 84
TOP ADJUSTMENT (Inch/mm)
SIDE ADJUSTMENT (Inch/mm)
Model 84W
.050
±
.010
1.27
±
0.25
.040
±
.010
1.02
±
0.25
.170
±
.015
4.32
±
0.38
C
L
.250
±
.020
6.35
±
0.51
.040
±
.015
1.02
±
0.38
Metal Adjustment Screw
.070
±
.005
With
1.78
±
0.13
.020
Min. Wide x
0.51
.020
Min. Depth
0.51
Model 84X
Standard Marking
On This Surface
~
Standard Marking
On This Surface
.040
±
.010
1.02
±
0.25
~
(1)
(2)
(3)
3x
.040
±
.015
1.02
±
0.38
.050
±
.010
1.27
±
0.25
(1)
.295
±
.015
7.49
±
0.38
3x
.005
Min.
0.13
(2)
(3)
.040
±
.015
1.02
±
0.38
.100
2.54
.100
2.54
C
L
Recommended PCB Layout - Models 84W and 84X
Terminal Pins:
Solderable
.018
±
.002
3x
0.46
±
.051
3x
Housing: Molded Plastic
.100
2.54
.100
2.54
C
L
.070
±
.015
1.78
±
0.38
3x
.040
±
.015
1.02
±
0.38
(2)
3x
(3)
.110
±
.015
2.80
±
0.38
.295
±
.005
7.49
±
0.13
(1)
Note: Model 84W dimensions applicable to all models
except as noted.
.100
.100 2.54
2.54
SIDE ADJUSTMENT (Inch/mm)
Model 84P
Recommend PCB Layout - Model 84P
Standard Marking
On This Surface
.105
±
.015
3x
2.67
±
0.38
.100
2.54
(2)
(3)
C
L
(1)
(1)
(1)
(2)
(3)
3x
.250
±
.020
6.35
±
0.51
.040
±
.015
1.02
±
0.38
.100
2.54
.100
2.54
(2)
3x
.040
±
.015
1.02
±
0.38
.100
2.54
(3)
3x
.125
±
.015
3.18
±
0.38
.040
±
.010
1.02
±
0.25
.210
±
.015
5.33
±
0.38
~
.375
±
.015
9.53
±
0.13
1-74
Model 84
STANDARD RESISTANCE VALUES, OHMS
10
20
50
PACKAGING
100
200
500
1K
2K
5K
10K
20K
25K
50K
100K
200K
250K
500K
1Meg
1
Standard:
Tubes
All units oriented with #1 pin to same side.
Pin Style
Width
Height
Length
Capacity
Option:
P
0.47”(11.93mm)
0.32”(8.13mm)
14.5”(368mm)
50 Units
W/X
0.37”(9.39mm)
0.47”(11.93mm)
14.5”(368mm)
16.5”(429mm)
50 Units
Magazine
=
=
=
=
Embossed Tape & Reel (84P & 84W only)
All units oriented with #1 pin to the right of the direction of feed.
Pin Style
Width
Sprocket
Capacity
Diameter
=
=
=
=
=
P
16 mm
4 mm pitch
500 Units
13” (330 mm)
W/X
24mm
4mm pitch
400 Units
13” (330mm)
Tape
Reel
ORDERING INFORMATION
Standard:
Model Series
Pin Style
Resistance Prefix
84 P R 10K LF TR
Packaging Option:
TR = Tape & Reel
(No code used for tubes)
RoHS Compliant Product Code - Optional
Resistance Value
CIRCUIT DIAGRAM
NOTES
Metric equivalents, based on 1 inch = 25.4mm are
rounded to the same number of significant figures
as in the original English units and are provided for
general information only.
Tolerances unless otherwise specified:
Linear = ± .01 inches (.25mm)
Angular = ± 2 degrees
(2)
(1)
CW
(3)
INCH
mm
1-75
Model 84
Embedded System
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