9.53

(.375)

5.64

(.222)

5.97 ± .89

(.235 ± .035)

.38

(.015)

Common Dimensions

Side Adjust Models H,S,W

3.56 ± .25

(.140 ± .010)

3.81

(.150)

1

32

4.83

(.190)

3386B

2.54

(.100)

1

32

3386C

1.40 ± .25

(.055 ± .010)

13

2

3386H

2.44

(.096)

3.81

(.150)

1

32

3386J

2.44

(.096)

3

12

3386S

2.44

(.096)

3

12

3386W

31

2

3386X

ADJ. SLOT

.76

(.030)

.76

(.030)

3.15

(.124)

3.56 ± .25

(.140 ± .010)

1.40 ± .25

(.055 ± .010)

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

n

Single Turn / Cermet / Industrial / Sealed

n

Available on tape and reel

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)

n

RoHS compliant* version available

n

For trimmer applications/processing

guidelines, click here

3386 - 3/8 ˝ Square Trimpot® Trimming Potentiometer

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 Divider...................... ±0.05 %

Rheostat................................ ±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 % 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; 3 % or 3 ohms,

whichever is greater, CRV)

Rotational Life .......................200 cycles

(4 % ΔTR; 3 % or 3 ohms,

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 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)

Tape and reel material meets Antistatic ANSI/

ESD 5541-2003 packaging standards.

Terminations

LF = 100 % Tin-plated (RoHS compliant)

Blank = 90 % Tin / 10 % Lead-plated

(Standard)

**Knob option is available only in standard tube

packaging. Not recommended for side load

applications.

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.

WARNING

Cancer and Reproductive Harm

www.P65Warnings.ca.gov

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.

†“Fluorinert” is a registered trademark of 3M Co.

“Trimpot” is a trademark of Bourns, Inc.

*RoHS Directive 2015/863, Mar. 31, 2015 and Annex