Features
n Single Turn / Cermet / Industrial / Sealed n RoHS compliant* version available
n Available on tape and reel n For trimmer applications/processing
guidelines, click here
n Available with a knob for finger adjust
n Available with extended shaft
n Available with cross-slot rotor
n Top and side adjust types (F, P, H, W, X
most popular)
3386 - 3/8 Square Trimpot Trimming Potentiometer
Electrical Characteristics Product Dimensions
Common Dimensions Common Dimensions
Standard Resistance Range
Side Adjust Models B,C,J,X Side Adjust Models H,S,W
......................10 ohms to 2 megohms
ADJ. SLOT ADJ. SLOT
(see standard resistance table)
.76 .76
WIDE WIDE
Resistance Tolerance ........... 10 % std.
(.030) (.030)
9.53
.76 .76
(tighter tolerance available) 9.53
X DEEP X DEEP
(.375)
(.030) (.030)
(.375)
Absolute Minimum Resistance
3.15 3.15
X LONG X LONG
....................................... 2 ohms max.
(.124) (.124)
9.53 9.53
.38 .38
Contact Resistance Variation
MIN. MIN.
(.375) (.375)
(.015) (.015)
........................... 2 % or 3 ohms max.
(whichever is greater)
5.33 5.64
Adjustability
(.210) (.222)
Voltage Divider ...................... 0.05 %
5.97 .89 5.97 .89
.51 .05 .51 .05
DIA. PINS DIA. PINS
(.235 .035) (.235 .035)
Rheostat ................................ 0.15 % (.020 .002) (.020 .002)
Resolution ................................... Infinite
2.54
4.83 3386H
3386B
Insulation Resistance ...............500 vdc.
(.100) 2
(.190)
1,000 megohms min.
32 1 13
Dielectric Strength
2.54
3.56 .25
1.40 .25
Sea Level................................ 900 vac 3.81 (.100)
(.140 .010)
(.055 .010)
(.150)
2.54
70,000 Feet ............................ 350 vac
3.81
(.100)
Adjustment Angle ................. 280 nom.
(.150)
12 3
3386S
Environmental Characteristics 3386C
32 1
Power Rating (300 volts max.)
2.44
3.81
3.56 .25
85 C ......................................0.5 watt
(.096)
(.150)
(.140 .010) 2.54
125 C .......................................0 watt
3.81
(.100)
2.54
(.150)
Temperature Range ...-55 C to +125 C (.100)
Temperature Coefficient ... 100 ppm/C
12 3
32 1 3386W
3386J
Seal Test ......................85 C Fluorinert
Humidity .......MIL-STD-202 Method 103
2.44
2.54
2.44
96 hours 3.81
(.096)
(.100)
(.096)
(.150)
(2 % TR, 10 Megohms min.)
3.81 2.54
Vibration ....... 30 G (1 % TR; 1 % VR)
(.150) (.100)
Shock ......... 100 G (1 % TR; 1 % VR)
2.54
3386X
MM
Load Life ..1,000 hours 0.5 watt @ 70 C
DIMENSIONS:
(.100) 2
(INCHES)
(3 % TR; 3 % or 3 ohms,
31
0.25
whichever is greater, CRV)
TOLERANCES: EXCEPT WHERE NOTED
2.54
(.010)
1.40 .25
Rotational Life .......................200 cycles (.100)
(.055 .010)
2.54
(4 % TR; 3 % or 3 ohms,
(.100)
How To Order
whichever is greater, CRV)
3386 P - 1 - 103 T __ LF
Standard Resistance Table
Physical Characteristics Model
Resistance Resistance
Style
Mechanical Angle ................. 310 nom.
(Ohms) Code
Standard or Modified
Torque .............................5.0 oz-in. max. 10 100
Product Indicator
20 200
Stop Strength ...............15.0 oz -in. min.
-1 = Standard Product
50 500
-EY5 = Extended Shaft
Terminals .......................Solderable pins
100 101
200 201 Resistance Code
Weight ....................................... 0.03 oz.
500 501
Optional Suffix Letter
Marking ...........................Manufacturers
1,000 102
T = Knob**
2,000 202
trademark, resistance code,
Packaging Designator
5,000 502
wiring diagram, date code,
10,000 103 Blank = Tube (Standard)
manufacturers model 20,000 203 R = Tape & Reel (W and U Pin Styles Only)
25,000 253
A = Ammo Pack (W and U Pin Styles Only)
number and style
50,000 503
Tape and reel material meets Antistatic ANSI/
Flammability ..........................U.L. 94V-0
100,000 104
ESD 5541-2003 packaging standards.
200,000 204
Standard Packaging .....50 pcs. per tube
250,000 254
Terminations
Wiper ...............50 % (Actual TR) 10 %
500,000 504
LF = 100 % Tin-plated (RoHS compliant)
1,000,000 105
Adjustment Tool ..............................H-90
Blank = 90 % Tin / 10 % Lead-plated
2,000,000 205
(Standard)
Popular distribution resistance values listed in
**Knob option is available only in standard tube
WARNING
boldface. Special resistances available.
packaging. Not recommended for side load
Cancer and Reproductive Harm
applications.
www.P65Warnings.ca.gov *RoHS Directive 2015/863, Mar. 31, 2015 and Annex
Consult factory for other available options.
Specifications are subject to change without notice. Users should verify actual device performance in their specific
Fluorinert is a registered trademark of 3M Co.
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Trimpot is a trademark of Bourns, Inc.
3386 - 3/8 Square Trimpot Trimming Potentiometer
Product Dimensions
Common Dimensions 3386H-EY5
2.54
Top Adjust Models F,G,K,P,R,U,V,Y 3386X-EY5 SHOWN
3386U
(.100)
2.54
ADJ. SLOT
ADJ. SLOT
(.100)
.76
.81
WIDE
WIDE
(.030)
(.032)
9.53 5.97 .89
.76
2.54
X DEEP
X DEEP
(.375) (.235 .035)
(.030)
32 1 4.78 .38 (.100)
3.15
4.83 (.188 .015) 3.56
X
LONG
X LONG
(.124)
(.190) (.140)
9.53 2.54
3386V
(.375) (.100) 12 3
.51 .05
(.020 .002) 3.56
.38 (.140)
2.54
5.64
MIN.
2.54
(.015) 1.40
(.100)
(.222)
(.100) 2
(.055)
2.54
31
5.64
(.100)
7.87
3386F
(.222) 1.40
2.54
3.56 .25 (.310)
2.54
(.055)
(.100)
(.140 .010)
2.54 (.100)
2.54
(.100)
(.100)
3386Y
31
2.54
3386P-EY5
2
3.56
(.100)
5.08
2.54
(.140)
(.200) 2.34 .38
(.100)
(.092 .015)
2
3386G 7.87
31
5.08
(.310)
ADJ. SLOT
(.200)
3.05 .38
.76 3.56 0.25 2.54
WIDE 2
(.120 .015)
(.030) (.140 .010) (.100)
.97
X DEEP 4.78 2.54
(.038)
(.188) (.100)
Common Dimensions
3.05
1 3
X
LONG Top Adjust Models M,T
(.120) 3 1
10.16
2.54
(0.40) ADJ. SLOT
COMMON TO (.100) 2
.76
3386V 2.54 2.54
WIDE
(.030)
(.100) (.100)
9.53 5.97 .89
.76
X DEEP
(.375) (.235 .035)
(.030)
3.15 The Model 3386 is available with a knob for finger
4.83
X LONG
3386K
(.124) adjustment. Add suffix letter to order code for
(.190)
2.54 .25
F, P and X terminal styles.
2 PLCS.
(.100 .010)
ADJ. SLOT
9.53
3.05 .38
5.59
(.375)
.51 .05
LONG
(.120 .015)
(.220)
(.020 .002)
1.02
2
.38
5.59 8.38 WIDE
5.33 X
MIN.
(.040)
(.015)
(.220) (.330)
(.210)
1.40
DEEP
31 4.83 X
(.055)
(.190)
3386M
90 3
3386P
2.54
10.41 .51 6.60
(.100)
132
(.410 .020) (.260)
4.78 .38 2.54
3.81
(.188 .015) (.100)
(.150)
3.81
3 1
(.150)
WIPER
2
2
2.54
3386T
CCW CW
(.100) 1 3
CLOCKWISE
.76 .38
3.81
12 3 (.030 .015)
3386R
MM
(.150)
DIMENSIONS:
2.54 (INCHES)
3.81
(.100)
(.150) 2.54 0.25
TOLERANCES: EXCEPT WHERE NOTED
(.100)
(.010)
1.22 .25
(.048 .010)
312
Specifications are subject to change without notice. Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.