IA
NT
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
*R
oH
S
Model 3318 is currently available,
although not recommended for new
designs. Models
3306F
&
3306K
are preferred.
■
Adjustable front/back, top/bottom
■
RoHS compliant*
■
For trimmer applications/processing
CO
M
PL
guidelines,
click here
3318 - 6 mm Square Trimpot
®
Trimming Potentiometer
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 ................................... Infinite
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 Coefficient... ±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.
How To Order
Product Dimensions
3318K
FRONT VIEW
6.40
(.252)
0.80
±
0.10
(.031
±
.004)
2
0.80
±
0.10
(.031
±
.004)
3.20
(.126)
3.50
(.138)
1
1
0.80
±
0.10
(.031
±
.004)
2.50
(.098)
2
3
1.20
(.047)
3
0.30
(.012)
3318F
FRONT VIEW
6.40
(.252)
2.50
(.098)
0.75
(.030)
4.65
(.183)
1.20
(.047)
3.20
DIA.
(.126)
8.00
(.315)
0.75
(.030)
6.35
(.250)
3.50
±
0.50
(.138
±
.020)
1.70
(.067)
MOUNTING
SURFACE
3.20
DIA.
(.126)
1.70
(.067)
MOUNTING
SURFACE
1.85
(.073)
0.75
(.030)
REAR VIEW
2.00
±
0.10
DIA.
(.079
±
.004)
0.60
(.024)
4.50
(.177)
0.40
(.016)
0.75
(.030)
2.00
±
0.10
(.079
±
.004)
3.80
(.150)
REAR VIEW
DIA.
0.80
±
0.10
(.031
±
.004)
3318 K - 1 - 103 __
Model
Style
Standard or Modified
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
4.65
(.183)
0.60
(.024)
Standard Resistance Table
Resistance
(Ohms)
100
200
500
1,000
2,000
5,000
10,000
20,000
50,000
100,000
200,000
500,000
1,000,000
Resistance
Code
101
201
501
102
202
502
103
203
503
104
204
504
105
ADJUSTING
DIRECTION
SUGGESTED PWB LAYOUT
DIA. 2.00 + 0.10
(.079
±
.004)
1.00 + 0.10 DIA.
(.039
±
.004)
5.00
(.197)
SUGGESTED PWB LAYOUT
2.50
(.098)
1.00 + 0.10
DIA.
(.039 + .004) 3 PLACES
5.00
(.197)
5.00
(.197)
CCW
2
1
CLOCKWISE
WIPER
3
CW
Popular values listed in boldface. Others are
typically not stocked by distributors and are not
recommended for new designs.
DIMENSIONS:
TOLERANCES: ±
0.25
(.010)
MM
(INCHES)
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.
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