3318K
2.50
(.098)
2 31
4.65
(.183)
3.20
(.126)
0.75
(.030)
1.85
(.073)
0.40
(.016)
3.80
(.150)
4.50
(.177)
8.00
(.315)
MOUNTING
SURFACE
FRONT VIEW
REAR VIEW
FRONT VIEW
REAR VIEW
2.00 ± 0.10
(.079 ± .004)
ADJUSTING
DIRECTION
SUGGESTED PWB LAYOUT
2.50
(.098)
1.00 + 0.10
(.039 + .004)
6.40
(.252)
2.50
(.098)
0.80 ± 0.10
(.031 ± .004)
0.80 ± 0.10
(.031 ± .004)
1.20
(.047)
1.70
(.067)
0.75
(.030)
0.60
(.024)
5.00
(.197)
DIA.
3 PLACES
DIA.
DIA.
6.40
(.252)
1 3
2
3.50
(.138)
1.20
(.047)
3.20
(.126)
3.50 ± 0.50
(.138 ± .020)
MOUNTING
SURFACE
6.35
(.250)
1.70
(.067)
0.75
(.030)
0.30
(.012)
3318F
0.80 ± 0.10
(.031 ± .004)
0.60
(.024)
4.65
(.183)
2.00 ± 0.10
(.079 ± .004)
SUGGESTED PWB LAYOUT
1.00 + 0.10
(.039 ± .004)
5.00
(.197)
5.00
(.197)
3.20
(.126)
0.75
(.030)
DIA.
DIA.
2.00 + 0.10
(.079 ± .004)
DIA.
DIA.
0.80 ± 0.10
(.031 ± .004)
Features
■ Single-Turn / Carbon / Commercial
Open Frame
■ Cross slot rotor design suitable for
automatic adjustment equipment
■ Board retention feature
■ Enclosed cover
■ PC board stand-offs
■ Adjustable front/back, top/bottom
■ RoHS compliant*
■ For trimmer applications/processing
guidelines,
click here
3318 - 6 mm Square Trimpot
®
Trimming Potentiometer
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Electrical Characteristics
Standard Resistance Range
............................... 100 to 1 megohm
(see standard resistance table)
Resistance Tolerance .................. ±30 %
(tighter tolerances available)
Contact Resistance Variation ...10 % max.
Resolution ................................... Infi nite
Adjustment Angle .................210 ° ±20 °
Environmental Characteristics
Power Rating
100-500K ohms ...........................50 V
>500K ohms .................................25 V
50 °C ......................................0.1 watt
Temperature Range ... -25 °C to +100 °C
Temperature Coeffi cient ... ±1000 ppm/°C
Load Life ..1,000 hours 0.1 watt @ 70 °C
(20 % ΔTR)
Physical Characteristics
Torque (Operating) .............20-250 g-cm
Stop Strength
Knob Side ........................... 750 g-cm
Reverse Side ...................... 350 g-cm
Terminals .......................Solderable pins
Marking ......Resistance code, date code
Standard Packaging ....500 pcs. per bag
Adjustment Tool ..............................H-90
Aqueous cleaning not recommended.
Product Dimensions
1
3
CW
CLOCKWISE
CCW
2
WIPER
How To Order
3318 K - 1 - 103 __
Model
Style
Standard or Modifi ed
Product Code
-1 = 30 % TR Tolerance (Standard)
-2 = 20 % TR Tolerance
Resistance Code
Packaging Options
Blank = 500 pcs./bag (Standard)
A = Ammo Pack - 1000 pcs./box
TOLERANCES: ±
0.25
EXCEPT WHERE NOTED
(.010)
DIMENSIONS:
MM
(INCHES)
Standard Resistance Table
Resistance Resistance
(Ohms) Code
100 101
200 201
500 501
1,000 102
2,000 202
5,000 502
10,000 103
20,000 203
50,000 503
100,000 104
200,000 204
500,000 504
1,000,000 105
Popular values listed in boldface. Others are
typically not stocked by distributors and are not
recommended for new designs.
Model 3318 is obsolete.
Models
3306F & 3306K are
preferred.
*RoHS COMPLIANT
