3339_11 Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – 5/16 ” Round Trimpot® Trimming Potentiometer

*RoHS ^{VCEOARMVSAPIOILLINAASBNLTE}
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
■ For trimmer applications/processing
guidelines, click here
3339 - 5/16 ” Round Trimpot^® Trimming Potentiometer
Electrical Characteristics
Product Dimensions
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.
3339H
Common Dimensions
(Top Adjust)
ADJ. CROSS SLOT
2.54
(.100)
LONG
X
.64
(.025)
WIDE
X
(2 PLACES)
4.78 _MIN.
(.188)
6.35
(.250)
.76
(.030)
DEEP
X
2.54 ± .025
(.10 ± .01) 1
90° ± 1°
REF.
.38
(.015)
3
.51
(.020)
7.62 _{DIA. .43 ± .05}
(.300) _{(.017 ± .002)}
DIA.
2
2.54 ± .025
(.10 ± .01)
3339P
6.35
(.250)
2.54
(.100)
2.54
(.100)
1
2.54
(.100)
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 % ΔTR, 10 Megohms IR)
Vibration ....... 30 G (1 % ΔTR; 1 % ΔVR)
Shock ......... 100 G (1 % ΔTR; 1 % ΔVR)
Load Life ..1,000 hours 0.5 watt @ 85 °C
(3 % ΔTR; 3 % or 3 ohms,
whichever is greater, CRV)
Rotational Life .......................200 cycles
(3 % ΔTR; 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
REV. 07/11
7.62
(.300)
DIA.
.51
(.020)
2
3
3339S
Common Dimensions (Side Adjust)
7.62
(.300)
DIA.
8.00 ± .38
(.315 ± .015)
9.53 ± .38
(375 ± .015)
5.97
(.235)
.64
(.025)
8.13 ± .38
(.320 ± .015)
5.54 ± .38
(.218 ± .015)
.38
(.015) ^MIN.
2
1
2.54
3
(.100)
5.08
(.200)
.43 ± .05
(.017 ± .002)
DIA.
4.57
(.180)
2.54
(.100)
3339W
8.00 ± .38
(.315 ± .015)
5.97
(.235)
9.53 ± .38
(375 ± .015)
.64
(.025)
5.54 ± .38
(.218 ± .015)
.38
(.015) ^MIN. ₂
8.13 ± .38
(.320 ± .015)
1
2.54
(.100)
5.08
(.200)
4.57
(.180)
2.54
3 (.100)
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
“Trimpot” is a registered trademark of Bourns, Inc.
†“Fluorinert” is a registered trademark of 3M Co.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
2 ^WIPER
CCW ₁
CLOCKWISE
3 CW
DIMENSIONS:
TOLERANCES: ±
0.25
(.010)
MM
(INCHES)
EXCEPT WHERE NOTED
How To Order
3339 H - 1 - 103 LF
Model
Style
Standard or Modified
Product Indicator
-1 = Standard Product
Resistance Code
Terminations
LF = 100 % Tin-plated (RoHS compliant)
Blank = 90 % Tin / 10 % Lead-plated
(Standard)
Consult factory for other available options.
Standard Resistance Table
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
Popular distribution resistance values listed in
boldface. Special resistances available.