■ Top and side adjust types (F, P, H, W, X
most popular)
Features
■ Single Turn / Cermet / Industrial / Sealed
■ High voltage types available
(see page 61 for details)
■ Available on tape and reel (see page 71
for details)
■ Available with a knob for finger adjust
■ Available with extended shaft
■ Available with cross-slot rotor
3386 - 3/8” Square Trimming Potentiometer
Common Dimensions
Side Adjust
3386W
Electrical Characteristics
1
2
3
Standard Resistance Range
ADJ. SLOT
.76
..................................10 to 2 megohms
(see standard resistance table)
Resistance Tolerance .............±10% std.
(tighter tolerance available)
WIDE
(.030)
2.44
(.096)
2.54
(.100)
9.53
(.375)
.76
(.030)
3.15
9.53
(.375)
X
X
DEEP
2.54
(.100)
LONG
(.124)
Absolute Minimum Resistance
.........................................2 ohms max.
Contact Resistance Variation
..............................2% or 3 ohms max.
(whichever is greater)
.38
(.015)
MIN.
5.33
(.210)
.51 ± .05
(.020 ± .002)
3386X
2.54
5.97 ± .89
(.100)
2
DIA. PINS
Adjustability
(.235 ± .035)
3
1
Voltage .....................................±0.05%
Resistance ...............................±0.15%
Resolution.....................................Infinite
Insulation Resistance ................500 vdc.
1,000 megohms min.
2.54
(.100)
2.54
(.100)
1.40 ± .38
(.055 ± .015)
3386B
4.83
(.190)
3
2
1
3.56 ± .38
(.140 ± .015)
Dielectric Strength
3.81
(.150)
3.81
(.150)
Sea Level .................................900 vac
70,000 Feet ..............................350 vac
Adjustment Angle ...................280° nom.
Standard Resistance Table
Resistance
(Ohms)
Resistance
Code
Environmental Characteristics
3386C
10
100
200
500
101
201
501
102
202
502
103
203
253
503
104
204
254
504
105
205
Power Rating (300 volts max.)
85°C.........................................0.5 watt
125°C..........................................0 watt
Temperature Range
...................................-55°C to +125°C
Temperature Coefficient
.........................................±100ppm/°C
Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103
96 hours
(2% ∆TR, 10 Megohms min.)
Vibration............30G (1% ∆TR; 1% ∆VR)
Shock..............100G (1% ∆TR; 1% ∆VR)
Load Life
20
50
100
3
2
1
200
3.56 ± .38
(.140 ± .015)
500
2.54
(.100)
2.54
(.100)
1,000
2,000
5,000
10,000
20,000
25,000
50,000
100,000
200,000
250,000
500,000
1,000,000
2,000,000
3386H
2.54
(.100)
2
1
3
2.54
(.100)
2.54
(.100)
1.40 ± .38
(.055 ± .015)
Special resistances available.
...............1,000 hours 0.5 watt @ 70°C
(3% ∆TR; 1% or 1 ohm,
whichever is greater, CRV)
Rotational Life ........................200 cycles
(4% ∆TR; 1% or 1 ohm,
How To Order
3386 P - 1 - 103 T
3386J
whichever is greater, CRV)
Model
Style
3
2
1
Physical Characteristics
Standard or Modified
Product Indicator
Mechanical Angle ...................310° nom.
Torque .............................5.0 oz-in. max.
Stop Strength ................15.0 oz -in. min.
Terminals ........................Solderable pins
Weight ........................................0.03 oz.
Marking ...........................Manufacturer’s
trademark, resistance code,
2.44
(.096)
3.81
(.150)
3.81
-1 = Standard Product
-EY5 = Extended Shaft
(.150)
Resistance Code
Optional Suffix Letter
T = Knob
3386S
1
2
3
Consult factory for other available options.
wiring diagram, date code,
manufacturer’s model
2.44
(.096)
3.81
(.150)
3.81
(.150)
number and style
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
Standard Packaging
...................................50 pcs. per tube
Wiper Positioned at 50% Nominal
Adjustment Tool ..............................H-90
METRIC
(INCHES)
DIMENSIONS ARE:
SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.
*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.
Specifications are subject to change without notice.
59
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
