9.53
(.375)
5.64
(.222)
5.97 ± .89
(.235 ± .035)
.38
(.015)
Common Dimensions
Side Adjust Models H,S,W
3.56 ± .38
(.140 ± .015)
3.81
(.150)
132
4.83
(.190)
3386B
2.54
(.100)
132
3386C
1.40 ± .38
(.055 ± .015)
13
2
3386H
2.44
(.096)
3.81
(.150)
132
3386J
2.44
(.096)
312
3386S
2.44
(.096)
312
3386W
31
2
3386X
ADJ. SLOT
.76
(.030)
.76
(.030)
3.15
(.124)
3.56 ± .38
(.140 ± .015)
1.40 ± .38
(.055 ± .015)
3.81
(.150)
WIDE
X
X
DEEP
LONG
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
3.81
(.150)
MIN.
9.53
(.375)
5.33
(.210)
.51 ± .05
(.020 ± .002)
5.97 ± .89
(.235 ± .035)
.38
(.015)
Common Dimensions
Side Adjust Models B,C,J,X
ADJ. SLOT
.76
(.030)
.76
(.030)
3.15
(.124)
WIDE
X
X
DEEP
LONG
9.53
(.375)
9.53
(.375)
MIN.
DIA. PINS .51 ± .05
(.020 ± .002) DIA. PINS
3.81
(.150)
3.81
(.150)
Features
■ Single Turn / Cermet / Industrial / Sealed
■ Available on tape and reel
■ Available with a knob for fi nger 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
■ For trimmer applications/processing
guidelines,
click here
3386 - 3/8 ” Square Trimpot® Trimming Potentiometer
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
†“Fluorinert” is a registered trademark of 3M Co.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Electrical Characteristics
Standard Resistance Range
......................10 ohms 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 ................................... Infi nite
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 Coeffi cient ... ±100 ppm/°C
Seal Test ......................85 °C Fluorinert†
Humidity .......MIL-STD-202 Method 103
96 hours
(2 % ΔTR, 10 Megohms min.)
Vibration ....... 30 G (1 % ΔTR; 1 % ΔVR)
Shock ......... 100 G (1 % ΔTR; 1 % ΔVR)
Load Life .. 1,000 hours 0.5 watt @ 70 °C
(3 % ΔTR; 1 % or 1 ohm,
whichever is greater, CRV)
Rotational Life .......................200 cycles
(4 % ΔTR; 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
Product Dimensions
How To Order
3386 P - 1 - 103 T __ LF
Model
Style
Standard or Modifi ed
Product Indicator
-1 = Standard Product
-EY5 = Extended Shaft
Resistance Code
Optional Suffi x 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.
Standard Resistance Table
Resistance Resistance
(Ohms) Code
10 100
20 200
50 500
100 101
200 201
500 501
1,000 102
2,000 202
5,000 502
10,000 103
20,000 203
25,000 253
50,000 503
100,000 104
200,000 204
250,000 254
500,000 504
1,000,000 105
2,000,000 205
TOLERANCES: ± 0.25 EXCEPT WHERE NOTED
(.010)
DIMENSIONS: MM
(INCHES)
Popular distribution resistance values listed in
boldface. Special resistances available.
*RoHS COMPLIANT
VERSIONS
AVAILABLE
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
3386 - 3/8 ” Square Trimpot® Trimming Potentiometer
3.05 ± .38
(.120 ± .015)
Common Dimensions
Top Adjust Models M,T
3386F
5.08
(.200) 2.24 ± .38
(.088 ± .015)
31
2
3386K
90° ± 3°
2.54 ± .25
(.100 ± .010)
2
31
3386M
3386P
4.78 ± .38
(.188 ± .015)
213
1
3
2
3386R
1.22 ± .38
(.048 ± .015)
3386T
123
.76 ± .38
(.030 ± .015)
3386U
321
2
31
3.05 ± .38
(.120 ± .015)
3386Y
The Model 3386 is available with a knob for finger
adjustment. Add suffix letter "T" to order code for
F, P and X terminal styles.
5.59
(.220)
4.83
(.190)
10.41 ± .51
(.410 ± .020)
6.60
(.260)
8.38
(.330)
231
9.53
(.375)
9.53
(.375)
4.83
(.190)
5.97 ± .89
(.235 ± .035)
.51 ± .05
(.020 ± .002)
5.33
(.210)
.38
(.015)
5.08
(.200)
MIN.
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100) 2.54
(.100)
2.54
(.100)
2.54
(.100)
2 PLCS.
2.54
(.100)
2.54
(.100)
2.54
(.100)
3.81
(.150) 3.81
(.150)
3.81
(.150)
3.81
(.150)
4.78 ± .38
(.188 ± .015)
ADJ. SLOT
5.59
(.220)
1.02
(.040)
1.40
(.055)
WIDE
X
XDEEP
LONG
ADJ. SLOT
.76
(.030)
.76
(.030)
3.15
(.124)
WIDE
X
X
DEEP
LONG
Common Dimensions
Top Adjust Models F,G,K,P,R,U,V,Y
9.53
(.375)
9.53
(.375)
4.83
(.190)
5.97 ± .89
(.235 ± .035)
.51 ± .05
(.020 ± .002)
5.64
(.222)
.38
(.015) MIN.
ADJ. SLOT
.76
(.030)
.76
(.030)
3.15
(.124)
WIDE
X
X
DEEP
LONG
3386G
3.56 ± 0.38
(.140 ± .015)
10.16
(0.40)
ADJ. SLOT
.76
(.030)
.97
(.038)
3.05
(.120)
COMMON TO
3386V
WIDE
X
X
DEEP
LONG
312
3386V
1.40
(.055)
2.54
(.100)
2.54
(.100)
2.54
(.100)
5.64
(.222)
3.56 ± .38
(.140 ± .015)
31
2
1.40
(.055)
2.54
(.100)
3.71
(.146)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
7.87
(.310)
3.71
(.146)
7.87
(.310)
ADJ. SLOT
.76
(.030)
2.54
(.100)
3.71
(.146)
WIDE
X
X
DEEP
LONG
3386H-EY5
3386X-EY5 – SHOWN
3386P-EY5
4.78
(.188)
1
13
3
2
22.54
(.100)
2.54
(.100)
2.54
(.100)
Product Dimensions
TOLERANCES: ± 0.25 EXCEPT WHERE NOTED
(.010)
DIMENSIONS: MM
(INCHES)
13CW
CLOCKWISE
CCW
2WIPER
“Trimpot” is a registered trademark of Bourns, Inc.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
3386 - 3/8 ” Square Trimpot® Trimming Potentiometer
Packaging Specifi cations
SIDE ADJUST
3386W-1
12.70
(.500)
18 ± .76
(.709 ± .030)
12.70 + .30/ - 0.25
(.500 + .012/ - .010)
8.89 + .76 /- .50
(.350 + .030/ - .020)
18 + 1.0/ - 0.5
(.709 + .040/ - .020)
27.56 ± .76
(1.085 ± .030)
4.0 ± 0.3
(.157 ± .012)
3.81 ± .71
(.15 ± .028) 3
2
1
4.83 ± .25
(.190 ± .010)
2.44 ± .25
(.096 ± .010)
.51 ± .05
(.020 ± .002)
DIA.
DIA. TYP.
REF.
ALL PINS IN-LINE ON CENTER
DIMENSIONS:
1000/REEL/BOX
2.54
(.100)
MM
(INCHES)
TOP ADJUST
3386U-1
12.70
(.500) 18.03 ± 0.7
(.710 ± .028)
12.7 ± 0.3
(.500 ± .012)
8.89 ± 0.7
(.350 ± .028)
22.98 ± .076
(.905 ± .030)
3.99 ± 0.3
(.157 ± .012)
1
3
9.53
(.375)
4.78
(.188)
10.16
(.400)
3.18 ± 0.7
(.125 ±.028)
REF.
MIN.
18.03 ± 0.7
(.710 ± .028)
18.03 ± 1.5
(.710 ± .060) DIA.
ALL PINS IN-LINE ON CENTER
DIMENSIONS:
1000/REEL/BOX
2.54
(.100)
MM
(INCHES)
Meets EIA Specifi cation 468.
DIMENSIONS: MM
(INCHES)
REV. 08/10
