Model 3318 is currently available,
although not recommended for new
designs. Models 3306F & 3306K
are preferred.
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*
3318 - 6 mm Square Trimming Potentiometer
Electrical Characteristics
Product Dimensions
Standard Resistance Range
3318F
3318K
............................... 100 to 1 megohm
(see standard resistance table)
Resistance Tolerance .................. ±±0 ꢀ
(tighter tolerances available)
Contact Resistance Variation...10 ꢀ max.
Resolution ................................... Infinite
Adjustment Angle.................210 ° ±20 °
FRONT VIEW
FRONT VIEW
6.40
(.252)
6.40
(.252)
0.80 ± 0.10
(.031 ± .004)
2
0.80 ± 0.10
(.031 ± .004)
3.20
(.126)
Environmental Characteristics
Power Rating
3.50
(.138)
100-500K ohms ...........................50 V
>500K ohms.................................25 V
50 °C......................................0.1 watt
Temperature Range...-25 °C to +100 °C
Temperature Coefficient...±1000 ppmꢁ°C
Load Life..1,000 hours 0.1 watt @ 70 °C
(20 ꢀ ∆TR)
1
3
1
2
3
0.30
(.012)
0.80 ± 0.10
(.031 ± .004)
2.50
(.098)
0.75
(.030)
1.20
(.047)
2.50
(.098)
3.20
DIA.
0.75
(.030)
(.126)
Physical Characteristics
Torque (Operating).............20-250 g-cm
Stop Strength
Knob Side ........................... 750 g-cm
Reverse Side ...................... ±50 g-cm
Terminals .......................Solderable pins
Marking......Resistance code, date code
Standard Packaging....500 pcs. per bag
Adjustment Tool..............................H-90
Aqueous cleaning not recommended
4.65
(.183)
8.00
1.20
(.047)
(.315)
6.35
(.250)
1.70
(.067)
3.50 ± 0.50
(.138 ± .020)
3.20
(.126)
DIA.
MOUNTING
SURFACE
4.50
(.177)
1.70
(.067)
3.80
(.150)
0.40
(.016)
MOUNTING
SURFACE
REAR VIEW
How To Order
0.80 ± 0.10
(.031 ± .004)
1.85
(.073)
DIA.
0.75
(.030)
3318 K - 1 - 103 __
0.75
(.030)
Model
2.00 ± 0.10
(.079 ± .004)
Style
REAR VIEW
Standard or Modified
Product Code
0.60
(.024)
-1 = ±0 ꢀ TR Tolerance (Standard)
-2 = 20 ꢀ TR Tolerance
2.00 ± 0.10
(.079 ± .004)
0.60
(.024)
DIA.
4.65
(.183)
Resistance Code
Packaging Options
Blank = 500 pcs.ꢁbag (Standard)
A = Ammo Pack - 1000 pcs.ꢁbox
ADJUSTING
DIRECTION
SUGGESTED PWB LAYOUT
1.00 + 0.10
(.039 ± .004)
Standard Resistance Table
DIA.
2.00 + 0.10
DIA.
Resistance
(Ohms)
100
Resistance
Code
101
(.079 ± .004)
5.00
(.197)
200
201
500
501
SUGGESTED PWB LAYOUT
1,000
102
5.00
(.197)
2.50
(.098)
2,000
202
1.00 + 0.10
(.039 + .004)
DIA.
3 PLACES
5,000
502
10,000
20,000
50,000
100,000
200,000
500,000
1,000,000
103
203
5.00
(.197)
503
WIPER
2
104
204
CW
CCW
3
1
504
105
CLOCKWISE
MM
(INCHES)
DIMENSIONS:
Popular values listed in boldface. Others are
typically not stocked by distributors and are not
recommended for new designs.
0.25
TOLERANCES:
(.010)
EXCEPT WHERE NOTED
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications