*R
oH
VE S C O
AV R M
AI SIO PL
LA N IA
BL S NT
E
Features
■
1/4” Round / Single-Turn / Cermet
■
RoHS compliant* version available
■
For trimmer applications/processing
Industrial / Sealed
■
5 standard terminal styles
■
Tape and reel packaging available
■
Listed on the QPL
for style
RJ50
per
MIL-PRF-22097 and
RJR50
per
High-Rel MIL-PRF-39035
guidelines,
click here
3329 - 1/4 ” Round Trimpot
®
Trimming Potentiometer
Electrical Characteristics
Standard Resistance Range
................................. 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)
Adjustability
Voltage .................................. ±0.05 %
Resistance ............................ ±0.15 %
Resolution ................................... Infinite
Insulation Resistance ............... 500 vdc.
1,000 megohms min.
Dielectric Strength
Sea Level................................ 600 vac
80,000 Feet ............................ 250 vac
Adjustment Angle ................. 240 ° nom.
Environmental Characteristics
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 ... ±100 ppm/°C
Seal Test ......................85 °C Fluorinert†
Humidity .......MIL-STD-202 Method 106
96 hours
(3 %
ΔTR,
10 Megohms IR)
Vibration ....... 30 G (1 %
ΔTR;
1 %
ΔVR)
except “P” pin style
Shock ......... 100 G (1 %
ΔTR;
1 %
ΔVR)
Load Life
............ 1,000 hours 0.5 watt @ 85 °C
(3 %
ΔTR;
3 % CRV)
Rotational Life .......................200 cycles
(4 %
ΔTR;
4 % CRV)
Physical Characteristics
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,
manufacturer’s model number
and style
Wiper ............... 50 % (Actual TR) ±10 %
Standard Packaging .....50 pcs. per tube
Adjustment Tool..............................H-90
Product Dimensions
3329H
3329P-DK9-RC
ADJ. SLOT
2.79 ± .038
DIA.
(.110 ± ..001)
.64
WIDE
X
(.025)
.51
X (.020) DEEP
4.75 MIN.
(.187)
2.54
(.100)
45° REF.
2
3
1
2.54
(.100)
.38
(.015)
5.79
(.228)
6.35 ± .51
(.250 ± .020)
.46 ± .05
(.018 ± .002)
DIA. TYP.
90° ± 5°
4.57
(.180)
6.35 ± .51
(.250 ± .020)
6.78 ± 2.24
(.267 ± .088)
ADJ. SLOT
3.56 LONG
(.140)
.64
X (.025) WIDE
1.02
X (.040) DEEP
.43 ± .13
(.017 ± .005)
3
2
1
.46 ± .05
(.018 ± .002)
DIA. 3 PINS
3329P
2.54
(.100)
1
2
2.54
(.100)
3
2.54
(.100)
2.54
(.100)
2.54
(.100)
6.78 ± 2.24
(.267 ± .088)
2.54
(.100)
DIMENSIONS:
6.35 ± .51
(.250 ± .020)
5.82 ± .25
(.229 ± .010)
MM
(INCHES)
EXCEPT WHERE NOTED
TOLERANCES: ±
0.25
(.010)
3329S
5.08
(.200)
6.60
(.260)
.38
(.015)
6.10
(.240)
CCW
2
1
CLOCKWISE
WIPER
8.38 ± .51
(.330 ± .020)
3
CW
7.75 ± 2.97
(.305 ± .117)
2.54
(.100)
1 2 3
2.54
(.100)
2.54
(.100)
.89
(.035)
How To Order
3329 M - 1 - 103 __ LF
Model
Style
6.10
(.240)
3329W
5.08
(.200)
8.38 ± .51
(.330 ± .020)
6.60
(.260)
.38
(.015)
2.54
(.100)
2.54
(.100)
Standard or Modified
Product Indicator
-1 = Standard Product
-DK9 = Plastic Spacer
Resistance Code
Packaging Designator
Blank = Tube (Standard)
R = Tape and Reel (M and U Pin Styles
Only)
A = Ammo Pack (M and U Pin Styles Only)
Terminations
LF = 100 % Tin-plated (RoHS compliant)
Blank = 90 % Tin / 10 % Lead-plated
(Standard)
Consult factory for other available options.
7.75 ± 2.97
(.305 ± .117) 2.54
(.100)
.89
(.035)
3
2
1
3329X
5.08
(.200)
6.60
(.260)
.38
(.015)
2.54
(.100)
2.54
(.100)
1 2 3
6.10
(.240)
8.38 ± .51
(.330 ± .020)
7.75 ± 2.97
(.305 ± .117) 2.54
(.100)
.89
(.035)
*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.
Customers should verify actual device performance in their specific applications.
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