Features
s
Recommended for reflow processing
s
Rotor design compatible with pick and
s
s
Rear adjust version available
3mm size meets EIA/EIAJ standard
trimmer footprint
place and automatic adjustment
equipment
s
Supplied in 8mm embossed tape,
compatible with automatic assembly
equipment
3303 - 3mm SMD Trimming Potentiometer
Electrical Characteristics
Standard Resistance Range
..................................100 to 1 megohm
(see standard resistance table)
Resistance Tolerance .............±25% std.
Absolute Minimum Resistance
≤
1K Ohms......................20 ohms max.
>1K Ohms .....................2% max. of TR
Contact Resistance Variation ...5% max.
Resolution...................................Infinite
Adjustment Angle....................260° ±20°
Environmental Characteristics
Resistance to Soldering Heat
.......260°C, 10 seconds, TRS max. 5%
Power Rating (50 VDC max.)
70°C .......................................0.15 watt
Temperature Range
....................................-40°C to +125°C
Temperature Coefficient
..........................................±250ppm/°C
Humidity .....................................95%RH
500 hours
TRS max. ........................................±5%
Load Life
.............@ 70°C rated power 500 hours
TRS ±5%
Rotational Cycling......................20 turns
TRS ±15%
Physical Characteristics
Torque.........................20-200g-cm max.
Mechanical Angle .................Continuous
Marking......................Part marking code
Standard Packaging
...................................2000 pcs./7” reel
Adjustment Tool ..............................H-90
How To Order
3303W, X-1
3mm Open Frame
for Reflow Soldering
3-Terminal
3.75
(.148) 1.85
(.073)
3.00
(.118)
2.50
±
0.15
(.098
±
.006)
2
.0.55
±
0.15
(.022
±
.006)
3303W, X-3
3mm Open Frame
for Reflow Soldering
3-Terminal
Low Profile
3.75
(.148)
1.85
(.073)
2
3.00
(.118)
3.00
(.188)
1.50
(.059)
1.90
(.075)
1.50
(.060)
1.90
(.075)
1
3
ADJ SLOT
2.50
±
.15 LONG
(.098
±
.006)
X
X
.55
±
.15
WIDE
(.022
±
.006)
.30
±
.15
DEEP
(.012
±
.006)
1
3
2.80
(.110)
1.40 MAX.
(.055)
0.30
±
0.15
(.012
±
.006)
1.55
(.061)
1.35
(.053)
0.90
(.035)
0.95
(.037)
1.10
(.043)
1.20
(.047)
0.95
(.037)
1.10
(.043)
0.90
(.035)
0.80
(.031)
0.90
(.035)
0.98
(.039)
0.90
(.035)
0.80
(.031)
0.99
(.039)
0.90
(.035)
0.90
(.035)
SUGGESTED PWB LAYOUT
0.90
(.035)
3303 X - 3 - 103 E
Model
Style
Orientation of Parts In Tape:
Styles W, C -Terminals Toward
Sprocket Holes
Styles X, D - Terminals Away
From Sprocket Holes (prefered)
Standard or Modified
Product Indicator
-1 = Single Slot
*-2 = Cross Slot Rotor (Optional)
-3 = Cross Slot Low Profile (Standard)
Resistance Code
Embossed Tape Designator
Consult factory for other available options.
*Not available in C and D styles
1.50
(.059)
1.60
(.063)
0.90
(.035)
0.99
(.039)
CCW
2
1
CLOCKWISE
WIPER
3
CW
1.20
(.047)
0.80
(.031)
3.20
(.126)
TOLERANCES: ± 0.30 (.012) EXCEPT WHERE NOTED
DIMENSIONS ARE:
METRIC
(INCHES)
SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.
34
Specifications are subject to change without notice.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
