Model 68
3/8 Square
Multiturn
Cermet Trimming Potentiometer
ELECTRICAL
Standard Resistance Range 10 Ohms to 2 Megohms
Standard Resistance Tolerance 10% (<100 Ohms = 20%)
Input Voltage 200 Vdc Max. or rms not to exceed power rating
Slider Current 100 mA Max. or within rated power, whichever is less
Power Rating 0.5 Watts at 85C derating to 0 at 125C
End Resistance 2 Ohms Max.
Actual Electrical Travel 20 turns nominal
Dielectric Strength 900 Vrms
Insulation Resistance 1,000 Megohms Min.
Resolution Essentially infinite
Contact Resistance Variation 1% or 1 Ohm Max., whichever is greater
ENVIRONMENTAL
Seal 85C Fluorinert (No Leaks)
Temperature Coefficient 100 ppm/C (<100 Ohms = 250 ppm/C)
Operating Temperature Range 55C to +125C
Thermal Shock Five cycles 55C to +125C (1% RT, 1% VR)
Moisture Resistance Ten 24 hour cycles (1% RT, IR 1,000 Megohms Min.)
Shock 6 ms sawtooth, 100 Gs (1% RT, 1% VR)
Vibration 20 Gs, 10 to 2,000 Hz (1% RT, 1% VR)
High Temperature Exposure 250 hours at 125C (2% RT, 2% VR)
Rotational Life 200 cycles (3% RT)
Load Life 1,000 hours at 70C & 0.5 Watts (2% RT)
Resistance to Solder Heat 260C for 10 sec. (1% RT)
MECHANICAL
Mechanical Stops Clutch action, both ends
Torque, Starting 5 oz.-in. Max. (0.035 N-m)
Weight 0.04 oz. nominal (1.1 grams)
Specifications subject to change without notice.
Fluorinert is a registered trademark of 3M Company.
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345 Website: www.bitechnologies.com
June 3, 2010 Model 68 page 1 of 3Model 68
PACKAGING
Standard (no code): Boxes. Capacity = 100 units for 68W. 50 units for all other pin styles.
Option (TR code, available for 68W & 68X only): Tape & Reel. All units oriented with #1 pin to the right of the direction of feed.
Tape Width = 18 mm
Sprocket = Single hole, 0.050 spacing
Capacity = 1,000 units
Seat plane to centerline of sprocket hole = 0.71 (18 mm)
Reel Diameter = 14 (363 mm)
Option (AP code, available for 68W & 68X only): Ammo Pack. All units oriented with #1 pin to the right of the direction of feed.
Ammo Tape Fold = 12 (305 mm)
Box = 1.8 x 13 x 10
(46 mm x 330 mm x 254 mm)
Option (TB code): Tubes. All units oriented with #1 pin to same side. Tube capacity = 50 units.
Pin Style P W X
Dimensions Width = 0.57 0.33 0.33
Height = 0.66 0.90 0.90
Length = 20.9 20.4 24.4
ORDERINGINFORMATION
68 P F R 10K LF XX
Model Series
Packaging Option:
no code = Box (standard)
Pin Style
TR = Tape & Reel (Pin Styles W, X only)
AP = Ammo Pack
Optional 0.70 lead length for AP &
TB = Tubes (Pin Styles P, W, X only)
TR packaging, pin style W & X only
Resistance Prefix Resistance Value Optional RoHS compliant product code
CIRCUITDIAGRAM STANDARDRESISTANCEVALUES
10 200 5K 50K 500K
(2)
20 500 10K 100K 1Meg
(1) (3)
50 1K 20K 200K 2Meg
CW
100 2K 25K 250K
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345 Website: www.bitechnologies.com
June 3, 2010 Model 68 page 2 of 3