Document
Model 68
3/8” Square Multiturn Cermet Trimming Potentiometer
ELECTRICAL
Standard Resistance Range Standard Resistance Tolerance Input Voltage Slider Current Power Rating End Resistance Actual Electrical Travel Dielectric Strength Insulation Resistance Resolution Contact Resistance Variation 10 Ohms to 2 Megohms ±10% (<100 Ohms = ±20%) 200 Vdc Max. or rms not to exceed power rating 100 mA Max. or within rated power, whichever is less 0.5 Watts at 85°C derating to 0 at 125°C 2 Ohms Max. 20 turns nominal 900 Vrms 1,000 Megohms Min. Essentially infinite 1% or 1 Ohm Max., whichever is greater
ENVIRONMENTAL
Seal Temperature Coefficient Operating Temperature Range Thermal Shock Moisture Resistance Shock Vibration High Temperature Exposure Rotational Life Load Life Resistance to Solder Heat
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85°C Fluorinert® (No Leaks) ±100 ppm/°C (<100 Ohms = ±250 ppm/°C) –55°C to +125°C Five cycles –55°C to +125°C (1% ∆RT, 1% ∆VR) Ten 24 hour cycles (1% ∆RT, IR 1,000 Megohms Min.) 6 ms sawtooth, 100 G’s (1% ∆RT, 1% ∆VR) 20 G’s, 10 to 2,000 Hz (1% ∆RT, 1% ∆VR) 250 hours at 125°C (2% ∆RT, 2% ∆VR) 200 cycles (3% ∆RT) 1,000 hours at 70°C & 0.5 Watts (2% ∆RT) 260°C for 10 sec. (1% ∆RT)
MECHANICAL
Mechanical Stops Torque, Starting Weight Clutch action, both ends 5 oz.-in. Max. (0.035 N-m) 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 June 3, 2010 Website: www.bitechnologies.com Model 68 page 1 of 3
Datasheet pdf - http://www.DataSheet4U.net/
Model 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 = Sprocket = Capacity = Seat plane to centerline of sprocket hole = Reel Diameter = 18 mm Single hole, 0.050” spacing 1,000 units 0.71” (18 mm) 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 = Box = 12” (305 mm) 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
Dimensions Width = Height = Length =
P
0.57” 0.66” 20.9”
W
0.33” 0.90” 20.4”
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X
0.33” 0.90” 24.4”
ORDERING INFORMATION 68
Model Series Pin Style Optional 0.70” lead length for AP & TR packaging, pin style W & X only Resistance Prefix Resistance Value
P
F
R
10K
LF
XX
Packaging Option: no code = Box (standard) TR = Tape & Reel (Pin Styles W, X only) AP = Ammo Pack TB = Tubes (Pin Styles P, W, X only)
Optional RoHS compliant product code
CIRCUIT DIAGRAM
(2) (1) CW (3)
STANDARD RESISTANCE VALUES
10 20 50 100 200 500 1K 2K 5K 10K 20K 25K 50K 100K 200K 250K 500K 1Meg 2Meg
BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 June 3, 2010 Website: www.bitechnologies.com Model 68 page 2 of 3
Datasheet pdf - http://www.DataSheet4U.net/
Model 68
TOP ADJUSTMENT Model 68W
.375 ± .015 9.53 ± 0.38 .245 Max. 6.22 Schematic Diagram This Surface .062 ± .015 1.58 ± 0.38 Metal Adjustment Screw .090/2.29 Dia. With .020/0.51 Wide X .025/0.64 Min. Depth .15 ± .02 3.8 ± 0.5
SIDE ADJUSTMENT Model 68X
.15 ± .02 3.8 ± 0.5 .375 ± .015 9.53 ± 0.38 .245 Max. 6.22 Metal Adjustment Screw .090/2.29 Dia. With .020/0.51 Wide X .025/0.64 Min. Depth
Schematic Diagram This Surface
.12 ± .02 3.1 ± 0.5
.060 ± .015 1.52 ± 0.38
Standard Marking This Surface
.015 0.38
.375 ± .015 9.53 ± 0.38 Standard Marking This Surface .18 Min. 4.6 (3) (2) (1)
.32 ± .02 8.1 ± 0.5
.375 ± .015 9.53 ± 0.38 .18 Min. 4.6 (3) (2) (1)
.020 ± .003 Dia. 0.51 ± 0.08 Terminal Pins (3)
.020 ± .003 Dia. 0.51 ± 0.08 Terminal Pins (3)
.060 ± .015 1.524 ± 0.38 .045 ± .015 1.14 ± 0.38 .10 .10 2.5 2.5
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.045 ± .015 1.14 ± 0.38 .10 .10 2.5 2.5
.187 ± .015 4.75 ± 0.38
.187 ± .015 4.75 ± 0.38
SIDE ADJUSTMENT Model 68P
.245 6.22 Max. Schematic Diagram This Surface .18 4.6 Min. .375 ± .015 9.53 ± 0.38 Standoff .015 ± .002 Min. 0.38 ± 0.05 .020 ± .003 Dia. 0.51 ± 0.08 Terminal Pins (3) .03 Max. 0.8 Meniscus (Typ) .187 ± .015 4.75 ± 0.38
(3) (2)
(3) (2)
.10 2.5 .10 2.5
.375 ± .015 9.53 ± 0.38
Metal Adjustment Screw (1) .090/2.29 Dia. With .020/0.51 Wide X .025/0.64 Min. Depth .19 ± .02 4.8 ± 0.5
.12 ± .02 3.1 ± 0.5 .060 ± .015 1.524 ± 0.38
(1)
.187 ± .015 4.75 ± 0.38 Standard Marking This Surface
.10 2.5
BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 June 3, 2010 Website: www.bitechnologies.com Model 68 page 3 of 3
Datasheet pdf - http://www.DataSheet4U.net/
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