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Specifications are subject to change without notice.
52
3339 - 5/16” Round Trimming Potentiometer
Features
I
Four-Turn / Cermet / Industrial / Sealed
I
Unique planetary drive offers precise
wiper setting of a multiturn in a
single-turn package size
I
Top and side adjust styles
Electrical Characteristics
Standard Resistance Range
...................................10 to 1 megohm
(see standard resistance table)
Resistance Tolerance .............±10% std.
(tighter tolerance available)
Absolute Minimum Resistance
..............................1% or 2 ohms max.
(whichever is greater)
Contact Resistance Variation
..............................3% or 3 ohms max.
(whichever is greater)
Adjustability
Voltage.....................................±0.05%
Resistance .................................±0.1%
Resolution.....................................Infinite
Insulation Resistance ................500 vdc.
1,000 megohms min.
Dielectric Strength
Sea Level .................................600 vac
80,000 Feet..............................250 vac
Effective Travel....................4 turns nom.
Environmental Characteristics
Power Rating (300 volts max.)
85°C.........................................0.5 watt
150°C..........................................0 watt
Temperature Range
...................................-55°C to +150°C
Temperature Coefficient
.........................................±100ppm/°C
Seal Test........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103
96 hours
(3%
TR, 10 Megohms IR)
Vibration............30G (1%
TR; 1%
VR)
Shock..............100G (1%
TR; 1%
VR)
Load Life
...............1,000 hours 0.5 watt @ 85°C
(3%
TR; 3% or 3 ohms,
whichever is greater, CRV)
Rotational Life........................200 cycles
(3%
TR; 3% or 3 ohms,
whichever is greater, CRV)
Physical Characteristics
Torque ................................3 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ........................................0.02 oz.
Marking ...........................Manufacturer’s
trademark, resistance code,
wiring diagram, date
code, manufacturer’s
model number and style
Wiper ..........Positioned at 50% nominal
Flammability............................U.L.94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90
How To Order
3339 H - 1 - 103
Model
Style
Standard or Modified
Product Indicator
-1 = Standard Product
Resistance Code
Consult factory for other available options.
Standard Resistance Table
Popular values listed in boldface. Special
resistances available.
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
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
503
104
204
254
504
105
.43
±
.05
(.017
±
.002)
DIA.
ADJ. CROSS SLOT
2.54
(.100)
.64
(.025)
.76
(.030)
6.35
(.250)
7.62
(.300)
.51
(.020)
90
°
±
1
°
REF.
2.54
±
.025
(.10
±
.01)
.38
(.015)
1
2
3
3339H
Common Dimensions
(Top Adjust)
6.35
(.250)
7.62
(.300)
.51
(.020)
1
2
3339P
3
3339S
Common Dimensions (Side Adjust)
5.97
(.235)
8.00
±
.38
(.315
±
.015)
9.53
±
.38
(375
±
.015)
.38
(.015)
8.13
±
.38
(.320
±
.015)
.64
(.025)
5.54
±
.38
(.218
±
.015)
2
3
1
.51
(.020)
4.57
(.180)
3339W
1
2
3
4.78
(.188)
8.00
±
.38
(.315
±
.015)
8.13
±
.38
(.320
±
.015)
9.53
±
.38
(375
±
.015)
5.54
±
.38
(.218
±
.015)
(..38
MIN.
2.54
±
.025
(.10
±
.01)
2.54
(.100)
2.54
(.100)
5.97
(.235)
7.62
(.300)
DIA.
.64
(.025)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
.51
(.020)
2.54
(.100)
4.57
(.180)
DIA.
.43
±
.05
(.017
.002)
DIA.
DIA.
MIN.
LONG X
WIDE X
DEEP X
(2 PLACES)
1
3
CW
CLOCKWISE
CCW
2
WIPER
THOUGH
DSTRBUION
DIMENSIONS ARE:
METRIC
(INCHES)
TOLERANCES: ±0.25 (.010) EXCEPT WHERE NOTED
*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.
SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.