Features
s
s
s
s
s
Single-turn / conductive plastic
Commercial / dust proof / fully enclosed
Cross slot rotor design suitable for
automatic adjustment equipment
Hexagon adjustment design
PC board stand-off and retention feature
s
Adjustable front/back, top/bottom
3328 - 9mm Square Trimming Potentiometer
Electrical Characteristics
Resistance Range...........100Ω - 5.0 MΩ
Resistance Tolerance
100Ω - 1.0 MΩ, ± 20%
>1.0MΩ- 5.0 MΩ, ± 30%
End Resistance .........................3% Max
Contact Resistance Variation ....3Ω or 3%
whichever is greater
Resolution ..................................(Infinite)
Adjustment Angle ...................220°±20°
Max. Operating Voltage ................200 V
Environmental Characteristics
Power Rating ..............40°C, 0.20 Watts
Temperature Range......-25°C to + 70° C
Temperature Coefficient of Resistance
............±400 ppm , 100Ω < TR
≤
1 MΩ
Load Life ......1000 hours 0.20w at 40°C,
TRS ±10%
Vibration .....20 g, TRS ± 2%, VRS ± 2%
Shock .......100 g, TRS ± 2%, VRS ± 2%
Rotational Cycling ................500 cycles,
TRS ± 3%
Physical Characteristics
Torque (Operating)..............50-200 g.cm
Stop Strength ..........................550 g.cm
Terminals .......................Solderable Pins
Marking.........Manufacturer’s trademark,
resistance code and date code
Standard Packaging ...200 Pcs. per Bag
Mechanical Angle ..................250° ± 20°
Flammability..............................UL94V-0
Wiper Position ..................50% nominal
Product Dimensions
3328P
3328W
9.60
(.378)
10.41
(.410)
4.80
(.189)
9.60
(.378)
0.76
0.76
3.05
CROSS SLOT (.120) LONG X (.030) WIDE X (.030) DEEP
2.08
HEX THRU UNIT
ACROSS FLATS
(.082)
4.01
(.158)
1.52
(.060)
1.02
(.040)
2.54
(.100)
10.41
(.410)
11.01
(.433)
14.35
(.585)
5.59
(.220)
1
2
3
2.54
(.100)
5.08
(.200)
0.38
(.015)
3.48
(.137)
2
1
5.08
(.200)
10.01
(.394)
2.54
(.100)
3
3.61
(.142)
0.15
(.006)
RECOMMENDED PWB MOUNTING PATTERN
1.30
DIA.
(.051)
RECOMMENDED PWB MOUNTING PATTERN
DIMENSIONS ARE:
METRIC
(INCHES)
10.16
(.400)
3.18
DIA. OPTIONAL
(.125)
FOR THRU
BOARD
ADJUSTMENT
2
WIPER
1.30
DIA.
(.053)
5.08
(.200)
2
WIPER
CCW
1
CLOCKWISE
ADJUSTMENT ACCESSORIES
11.51
DIA
(.453)
3
CW
5.08
(.200)
5.08
(.200)
CCW
1
2.54
(.100)
3
CW
CLOCKWISE
DIA.
5.0
(.197)
9.9
(.390)
0.48
(.019)
3.84
(.151)
H118-1 Wheel
5.54
1.19 (.218)
(.047)
1.98
ACROSS FLATS
(.019)
0.5
(.020)
1.98
(.078)
ACROSS
FLATS
14.1
(.555)
3.7
(.146)
H118-2 Shaft
Specifications are subject to change without notice.
49
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
