3339

Manufacturer Part Number3339
Description5/16 Round Trimming Potentiometer
ManufacturerBourns, Inc.
3339 datasheet
 


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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
........................................±100 ppm/°C
Seal Test........................85 °C Fluorinert
Humidity........MIL-STD-202 Method 103
96 hours
(3 % ∆TR, 10 Megohms IR)
Vibration.........30 G (1 % ∆TR; 1 % ∆VR)
Shock...........100 G (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................50 % (Actual TR) ±10 %
Flammability ............................U.L.94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90
Features
Four-Turn / Cermet / Industrial / Sealed
Unique planetary drive offers precise
wiper setting of a multiturn in a
single-turn package size
Top and side adjust styles
RoHS compliant* version available
3339 - 5/16 ” Round Trimming Potentiometer
3339H
Common Dimensions
ADJ. CROSS SLOT
(Top Adjust)
2.54
LONG X
(.100)
.64
WIDE X
(.025)
.76
DEEP X
(.030)
4.78
MIN.
(.188)
90° ± 1°
6.35
REF.
2.54 ± .025
(.250)
(.10 ± .01)
1
.51
(.020)
2
7.62
.43 ± .05
DIA.
2.54 ± .025
(.300)
(.017 ± .002)
(.10 ± .01)
DIA.
3339P
2.54
(.100)
6.35
2.54
(.250)
(.100)
1
.51
3
2
(.020)
7.62
DIA.
(.300)
3339S
Common Dimensions (Side Adjust)
8.00 ± .38
7.62
(.315 ± .015)
(.300)
DIA.
9.53 ± .38
(375 ± .015)
5.54 ± .38
(.218 ± .015)
.64
.38
(.025)
MIN.
2
(.015)
1
8.13 ± .38
(.320 ± .015)
3
2.54
(.100)
(.100)
5.08
(.200)
3339W
8.00 ± .38
(.315 ± .015)
9.53 ± .38
(375 ± .015)
5.54 ± .38
(.218 ± .015)
.64
.38
(.015) MIN.
(.025)
2
8.13 ± .38
1
(.320 ± .015)
2.54
2.54
(.100)
(.100)
3
5.08
(.200)
Customers should verify actual device performance in their specific applications.
2
WIPER
1
CCW
(2 PLACES)
CLOCKWISE
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
.38
(.015)
DIMENSIONS ARE:
3
How To Order
3339 H - 1 - 103 LF
Model
Style
Standard or Modified
Product Indicator
2.54
-1 = Standard Product
(.100)
Resistance Code
Terminations
LF = 100 % Tin-plated (RoHS compliant)
Blank = 90 % Tin / 10 % Lead-plated
(Standard)
Consult factory for other available options.
5.97
(.235)
Standard Resistance Table
Resistance
(Ohms)
10
20
.43 ± .05
50
(.017 ± .002)
100
DIA.
200
500
4.57
1,000
(.180)
2,000
2.54
5,000
10,000
20,000
25,000
50,000
100,000
5.97
200,000
(.235)
250,000
500,000
1,000,000
Popular distribution resistance values listed in
boldface. Special resistances available.
4.57
(.180)
*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.
3
CW
MM
(INCHES)
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
503
104
204
254
504
105
REV. 02/06