Features
■ 1/4” Round / Single-Turn / Cermet
Industrial / Sealed
■ 5 standard terminal styles
■ Tape and reel packaging available
(see page 71 for details)
3329 - 1/4” Round Trimming Potentiometer
3329H
3329P-DK9-RC
Electrical Characteristics
Standard Resistance Range
ADJ. SLOT
2.79 ± .038
(.110 ± ..001)
...................................10 to 1 megohm
(see standard resistance table)
Resistance Tolerance .............±10% std.
(closer tolerance available)
Absolute Minimum Resistance
.......................................1% or 2 ohms
(whichever is greater)
Contact Resistance Variation
...........................3.0% or 3 ohms max.
(whichever is greater)
2.54
(.100)
2.54
(.100)
2
DIA.
3
1
.38
(.015)
45° REF.
.64
(.025)
WIDE
X
X
.51
DEEP
(.020)
6.35 ± .51
(.250 ± .020)
90° ± 5°
4.57
(.180)
4.75
(.187)
MIN.
5.79
(.228)
.46 ± .05
(.018 ± .002)
DIA. TYP.
6.35 ± .51
(.250 ± .020)
ADJ. SLOT
3.56
LONG
.46 ± .05
(.018 ± .002)
(.140)
.64
.43 ± .13
(.017 ± .005)
Adjustability
6.78 ± 2.24
(.267 ± .088)
WIDE
DEEP
X
X
DIA. 3 PINS
(.025)
1.02
Voltage .....................................±0.05%
Resistance ...............................±0.15%
Resolution.....................................Infinite
Insulation Resistance ................500 vdc.
1,000 megohms min.
(.040)
2
3
1
2.54
(.100)
3
3329P
2.54
(.100)
1
2.54
(.100)
2.54
(.100)
2.54
(.100)
Dielectric Strength
2
2.54
(.100)
Sea Level .................................600 vac
80,000 Feet ..............................250 vac
Adjustment Angle ...................240° nom.
6.78 ± 2.24
(.267 ± .088)
6.35 ± .51
Environmental Characteristics
(.250 ± .020)
5.82 ± .25
Power Rating @ 85°C (300 volts max.)
.................................................0.5 watt
Power Rating @ 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 106
96 hours
(.229 ± .010)
How To Order
5.08
(.200)
3329S
6.10
(.240)
6.60
(.260)
3329 H - 1 - 103
Model
Style
.38
(.015)
8.38 ± .51
(.330 ± .020)
Standard or Modified
Product Indicator
2.54
(.100)
.89
(.035)
7.75 ± 2.97
-1 = Standard Product
-DK9 = Plastic Spacer
(.305 ± .117)
2.54
(3% ∆TR, 10 Megohms IR)
2.54
(.100)
(.100)
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% CRV)
Resistance Code
2
1
3
Consult factory for other available options.
5.08
(.200)
3329W
6.10
(.240)
6.60
(.260)
8.38 ± .51
(.330 ± .020)
.38
(.015)
Standard Resistance Table
Rotational Life ........................200 cycles
(4% ∆TR; 4% CRV)
Resistance
(Ohms)
10
20
50
Resistance
Code
2.54
(.100)
2.54
.89
(.035)
Physical Characteristics
7.75 ± 2.97
100
200
500
(.305 ± .117)
2.54
Mechanical Angle ...................260° nom.
Torque .............................5.0 oz-in. max.
Stop Strength ..................5.0 oz -in. min.
Terminals ........................Solderable pins
Weight ........................................0.02 oz.
Marking .........Manufacturer’s trademark,
resistance code, date code,
(.100)
(.100)
3
1
2
100
101
201
501
102
202
502
103
203
253
503
104
200
500
5.08
(.200)
3329X
6.10
(.240)
6.60
(.260)
1,000
2,000
5,000
10,000
20,000
25,000
50,000
100,000
8.38 ± .51
(.330 ± .020)
.38
(.015)
manufacturer’s model number
2.54
(.100)
.89
(.035)
and style
7.75 ± 2.97
2.54
Wiper ...........Positioned at 50% nominal
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90
(.305 ± .117)
2.54
(.100)
(.100)
200,000
250,000
500,000
1,000,000
204
254
504
105
1
3
2
Popular values listed in boldface. Special
resistances available.
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
METRIC
(INCHES)
SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.
DIMENSIONS ARE:
*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.
Specifications are subject to change without notice.
51
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
