Features
■ Single Turn / Cermet / Industrial / Sealed
■ Available on tape and reel
Features
■ Top and side adjust types (F, P, H, W, X
most popular)
■ High voltage types available
(see Model 3386 HV2/3386 HV3 for
details)
■ Available with a knob for finger adjust
■ Available with extended shaft
■ Available with cross-slot rotor
■ RoHS compliant* version available
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)
Absolute Minimum Resistance
.........................................2 ohms max.
Contact Resistance Variation
WIDE
(.030)
.76
2.44
(.096)
2.54
9.53
(.375)
9.53
(.375)
(.100)
X
X
DEEP
LONG
(.030)
3.15
2.54
(.100)
(.124)
.38
(.015)
MIN.
5.33
(.210)
.51 ± .05
(.020 ± .002)
.............................2 % or 3 ohms max.
(whichever is greater)
Adjustability
Voltage.................................... 0.05 %
Resistance .............................. 0.15 %
Resolution.....................................Infinite
Insulation Resistance ................500 vdc.
1,000 megohms min.
3386X
2.54
5.97 ± .89
(.100)
2
DIA. PINS
(.235 ± .035)
3
1
2.54
(.100)
2.54
(.100)
1.40 ± .38
(.055 ± .015)
3386B
4.83
(.190)
3
2
1
Dielectric Strength
3.56 ± .38
(.140 ± .015)
TOLERANCES: 0.25 (.010) EXCEPT WHERE NOTED
3.81
(.150)
3.81
(.150)
Sea Level .................................900 vac
70,000 Feet..............................350 vac
Adjustment Angle ..................280 ° nom.
MM
(INCHES)
DIMENSIONS ARE:
Standard Resistance Table
Environmental Characteristics
3386C
Resistance
(Ohms)
Resistance
Code
Power Rating (300 volts max.)
85 °C........................................0.5 watt
125 °C.........................................0 watt
Temperature Range....-55 °C to +125 °C
Temperature Coefficient .... 100 ppm/°C
Seal Test........................85 °C Fluorinert†
Humidity........MIL-STD-202 Method 103
96 hours
10
100
200
500
101
201
501
102
202
502
103
203
253
503
104
204
254
504
105
205
3
2
1
20
3.56 ± .38
50
2.54
(.100)
2.54
(.100)
(.140 ± .015)
100
200
500
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
(2 % ∆TR, 10 Megohms min.)
Vibration.........30 G (1 % ∆TR; 1 % ∆VR)
Shock...........100 G (1 % ∆TR; 1 % ∆VR)
Load Life ..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,
3386H
2.54
(.100)
2
1
3
2.54
(.100)
2.54
(.100)
1.40 ± .38
(.055 ± .015)
whichever is greater, CRV)
Popular distribution resistance values listed in
boldface. Special resistances available.
Physical Characteristics
3386J
How To Order
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,
3
2
1
3386 P - 1 - 103 T __ LF
Model
Style
Standard or Modified
Product Indicator
2.44
(.096)
3.81
(.150)
3.81
(.150)
-1 = Standard Product
-EY5 = Extended Shaft
wiring diagram, date code,
manufacturer’s model
3386S
Resistance Code
Optional Suffix Letter
T = Knob**
Packaging Designator
Blank = Tube (Standard)
R = Tape & Reel (W and U Pin Styles Only)
A = Ammo Pack (W and U Pin Styles Only)
Terminations
1
2
3
number and style
Flammability...........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Wiper................50 % (Actual TR) 10 %
Adjustment Tool ..............................H-90
2.44
(.096)
3.81
(.150)
3.81
(.150)
LF = 100 % Tin-plated (RoHS compliant)
Blank = 90 % Tin / 10 % Lead-plated
(Standard)
**Knob option is available only in standard Tube
packaging.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
†“Fluorinert” is a registered trademark of 3M Co.
Specifications are subject to change without notice.
Consult factory for other available options.
Customers should verify actual device performance in their specific applications.