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VE S CO
AV R M
AI SIO PL
LA N IA
BL S NT
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Features
■
■
■
■
■
Features
■
■
Single Turn / Cermet / Industrial / Sealed
Available on tape and reel
Available with a knob for finger adjust
Available with extended shaft
Available with cross-slot rotor
■
Top and side adjust types (F, P, H, W, X
most popular)
High voltage types available
(see Model 3386 HV2/3386 HV3 for
details)
RoHS compliant* version available
3386 - 3/8 ” Square Trimming Potentiometer
Electrical Characteristics
Standard Resistance Range
..................................10 to 2 megohms
(see standard resistance table)
Resistance Tolerance ............±10 % std.
(tighter tolerance available)
Absolute Minimum Resistance
.........................................2 ohms max.
Contact Resistance Variation
.............................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.
Dielectric Strength
Sea Level .................................900 vac
70,000 Feet ..............................350 vac
Adjustment Angle ..................280 ° nom.
Environmental Characteristics
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
(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,
whichever is greater, CRV)
Physical Characteristics
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,
wiring diagram, date code,
manufacturer’s model
number and style
Flammability ...........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Wiper................50 % (Actual TR) ±10 %
Adjustment Tool ..............................H-90
Common Dimensions
Side Adjust
ADJ. SLOT
.76
WIDE
(.030)
X .76 DEEP
(.030)
X 3.15 LONG
(.124)
.38
MIN.
(.015)
3386W
1
2
3
9.53 9.53
(.375) (.375)
2.44
(.096)
2.54
(.100)
2.54
(.100)
5.97
±
.89
(.235
±
.035)
5.33
(.210)
.51
±
.05 DIA. PINS
(.020
±
.002)
4.83
(.190)
3
2
1
3386X
2.54
(.100)
3
2
1
3386B
1.40
±
.38
(.055
±
.015)
2.54
(.100)
2.54
(.100)
3.56
±
.38
(.140
±
.015)
3.81
(.150)
3.81
(.150)
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
DIMENSIONS ARE:
MM
(INCHES)
3386C
Standard Resistance Table
Resistance
(Ohms)
10
20
50
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
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
503
104
204
254
504
105
205
3
2
1
3.56
±
.38
(.140
±
.015)
2.54
(.100)
2.54
(.100)
3386H
2.54
(.100)
1
2
3
1.40
±
.38
(.055
±
.015)
2.54
(.100)
2.54
(.100)
Popular distribution resistance values listed in
boldface. Special resistances available.
3386J
3
2
1
How To Order
3386 P - 1 - 103 T __ LF
Model
3.81
(.150)
3.81
(.150)
2.44
(.096)
3386S
1
2
3
2.44
(.096)
3.81
(.150)
3.81
(.150)
*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.
Customers should verify actual device performance in their specific applications.
Style
Standard or Modified
Product Indicator
-1 = Standard Product
-EY5 = Extended Shaft
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
LF = 100 % Tin-plated (RoHS compliant)
Blank = 90 % Tin / 10 % Lead-plated
(Standard)
**Knob option is available only in standard Tube
packaging.
Consult factory for other available options.
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