Features
n
Four-Turn / Cermet / Industrial / Sealed
setting of a multiturn in a single-turn
package size
n
Top and side adjust styles
n
RoHS compliant* version available
n
Unique planetary drive offers precise wiper
guidelines, click here
n
For trimmer applications/processing
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 %
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. 08/19
3339 - 5/16 ˝ Round Trimpot
®
Trimming Potentiometer
3339H
Common Dimensions
(Top Adjust)
Product Dimensions
ADJ. CROSS SLOT
2.54
LONG X
(.100)
.64
WIDE X (2 PLACES)
(.025)
.76
DEEP X
(.030)
.38
90° ± 1°
(.015)
REF.
2.54 ± .025
(.10 ± .01)
1
3
CCW
2
1
CLOCKWISE
WIPER
3
CW
4.78 MIN.
(.188)
MM
DIMENSIONS:
(INCHES)
0.25
TOLERANCES: ±
EXCEPT WHERE NOTED
(.010)
6.35
(.250)
How To Order
Model
.51
(.020)
7.62 DIA. .43 ± .05
(.300)
(.017 ± .002)
DIA.
3339 H - 1 - 103 LF
2
2.54 ± .025
(.10 ± .01)
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.
3339P
6.35
(.250)
2.54
(.100)
2.54
(.100)
1
2.54
(.100)
3
7.62
DIA.
(.300)
.51
(.020)
2
3339S
Common Dimensions (Side Adjust)
7.62
(.300)
DIA.
8.00 ± .38
(.315 ± .015)
9.53 ± .38
(.375 ± .015)
5.54 ± .38
(.218 ± .015)
.38
2
(.015) MIN.
1
Standard Resistance Table
5.97
(.235)
MIN.
4.75
(.187)
.64
(.025)
8.13 ± .38
(.320 ± .015)
.43 ± .05
(.017 ± .002)
DIA.
4.57
(.180)
2.54
(.100)
2.54
(.100)
5.08
(.200)
3
3339W
8.00 ± .38
(.315 ± .015)
9.53 ± .38
(.375 ± .015)
5.54 ± .38
(.218 ± .015)
.38
(.015) MIN.
2
5.97
(.235)
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.
.64
(.025)
8.13 ± .38
(.320 ± .015)
1
2.54
(.100)
5.08
(.200)
3
4.57
(.180)
2.54
(.100)
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
*RoHS Directive 2015/863, Mar. 31, 2015 and Annex
“Trimpot” is a trademark of Bourns, Inc. †“Fluorinert” is a registered trademark of 3M Co.
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.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns
®
products manufactured by or on behalf of Bourns, Inc. and
Unless otherwise expressly indicated in writing, Bourns
®
products and data sheets relating thereto are subject to change
and complete before placing orders for Bourns
®
products.
The characteristics and parameters of a Bourns
®
product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns
®
®
product with other components
the actual performance of the Bourns
®
®
®
product as meeting the requirements of a particular industry
®
of Bourns products are responsible for ensuring compliance with safety-related requirements and standards applicable to
®
Bourns
®
on a case-by-case basis, use of any Bourns
®
®
®
®
®
Bourns
®
®
standard products that are suitable for use in aircraft
®
standard
the user’s sole risk.
®
and the user for which such Bourns
®
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custom products shall be negotiated on a case-by-case basis by Bourns
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also apply to such Bourns custom products.
Users shall not sell, transfer, export or re-export any Bourns
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Bourns
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standard products shall
products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns
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