68PR25KLFTR [TTELEC]
3/8 Square Multiturn Cermet Trimming Potentiometer; 3/8广场多圈金属陶瓷微调电位器型号: | 68PR25KLFTR |
厂家: | TT Electronics |
描述: | 3/8 Square Multiturn Cermet Trimming Potentiometer |
文件: | 总4页 (文件大小:61K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MODEL 68
3/8” Square
Multiturn
1
Cermet Trimming
Potentiometer
ELECTRICAL
Standard Resistance Range, Ohms
Standard Resistance Tolerance
Input Voltage, Maximum
Slider Current, Maximum
Power Rating, Watts
End Resistance, Maximum
Actual Electrical Travel, Turns, Nominal
Dielectric Strength
10 to 2Meg
10ꢀ ꢁ(100 Ohms ꢂ 20ꢀꢃ
200 Vdc or rms not to exceed power rating
100mA or within rated power, whichever is less
0.5 at 85°C derating to 0 at 125°C
2 Ohms
20
900 Vrms
Insulation Resistance, Minimum
Resolution
1,000 Megohms
Essentially infinite
Contact Resistance Variation, Maximum
1ꢀ or 1 Ohm, whichever is greater
ENVIRONMENTAL
Seal
85°C Fluorinert® ꢁNo Leaksꢃ
100ppmꢄ°C
Temperature Coefficient, Maximum
Temperature Range
Thermal Shock
Moisture Resistance
Shock, 6ms Sawtooth
Vibration
–55°C to +125°C
5 cycles, –55°C to +125°C ꢁ1ꢀ ∆RT, 1ꢀ ∆VRꢃ
Ten 24 hour cycles ꢁ1ꢀ ∆RT, IR 1,000 Megohms min.ꢃ
100G’s ꢁ1ꢀ ∆RT, 1ꢀ ∆VRꢃ
20G’s, 10 to 2,000 Hz ꢁ1ꢀ ∆RT, 1ꢀ ∆VRꢃ
250 hours at 125°C ꢁ2ꢀ ∆RT, 2ꢀ ∆VRꢃ
200 cycles ꢁ3ꢀ ∆RTꢃ
High Temperature Exposure
Rotational Life
Load Life at 0.5 Watts
Resistance to Solder Heat
1,000 hours at 70°C ꢁ2ꢀ ∆RTꢃ
260°C for 10 sec. ꢁ1ꢀ ∆RTꢃ
MECHANICAL
Mechanical Stops
Torque, Starting Maximum
Weight, Nominal
Clutch Action, both ends
5 oz.-in. ꢁ0.035 N-mꢃ
.04 oz. ꢁ1.13 gramsꢃ
Fluorinert® is a registered trademark of 3M Company.
Specifications subject to change without notice.
Model 68
1-51
TOP ADJUSTMENT (Inch/mm)
Model 68W
.375 ± .015
9.53 ± 0.38
.15 ± .02
3.8 ± 0.5
.245
6.22
Max.
Metal Adjustment Screw
.090ꢄ2.29 Dia. With
.020ꢄ0.51 Wide X
Schematic Diagram
This Surface
.025ꢄ0.64 Min. Depth
.062 ± .015
1.58 ± 0.38
.060 ± .015
1.52 ± 0.38
.12 ± .02
3.1 ± 0.5
.375 ± .015
9.53 ± 0.38
.015
Standard Marking This Surface
0.38
.18
Min.
4.6
.020 ± .003
0.51 ± 0.08
Dia.
ꢁ3ꢃ ꢁ2ꢃ ꢁ1ꢃ
Terminal Pins ꢁ3ꢃ
.045 ± .015
1.14 ± 0.38
.10 .10
2.5 2.5
.187 ± .015
4.75 ± 0.38
SIDE ADJUSTMENT (Inch/mm)
Model 68P
.245
6.22
Max. Min.
.18
4.6
.375 ± .015
9.53 ± 0.38
.187 ± .015
4.75 ± 0.38
.015 ± .002
0.38 ± 0.05
Min.
Standoff
.10
2.5
ꢁ3ꢃ
ꢁ2ꢃ
ꢁ1ꢃ
Schematic Diagram
This Surface
.10
2.5
.020 ± .003
0.51 ± 0.08
.375 ± .015
9.53 ± 0.38
Dia.
ꢁ3ꢃ
Terminal Pins ꢁ3ꢃ
.12 ± .02
3.1 ± 0.5
ꢁ2ꢃ
ꢁ1ꢃ
.187 ± .015
4.75 ± 0.38
Metal Adjustment Screw
.090ꢄ2.29 Dia. With
.020ꢄ0.51 Wide X
.03
.060 ± .015
1.524 ± 0.38
Max.
0.8
Standard Marking
This Surface
Meniscus
ꢁTypꢃ
.025ꢄ0.64 Min. Depth
.10
2.5
.19 ± .02
4.8 ± 0.5
Model 68
1-52
SIDE ADJUSTMENT (Inch/mm)
1
Model 68X
.375 ± .015
9.53 ± 0.38
.15 ± .02
3.8 ± 0.5
.245
6.22
Max.
Metal Adjustment Screw
.090ꢄ2.29 Dia. With
.020ꢄ0.51 Wide X
Schematic Diagram This Surface
Standard Marking This Surface
.025ꢄ0.64 Min. Depth
.375 ± .015
9.53 ± 0.38
.32 ± .02
8.1 ± 0.5
.18
Min.
4.6
.020 ± .003
Dia.
0.51 ± 0.08
ꢁ3ꢃ ꢁ2ꢃ ꢁ1ꢃ
Terminal Pins ꢁ3ꢃ
.060 ± .015
1.524 ± 0.38
.045 ± .015
1.14 ± 0.38
.10 .10
2.5 2.5
.187 ± .015
4.75 ± 0.38
STANDARD RESISTANCE VALUES, OHMS
10
20
50
200
500
1K
5K
10K
20K
25K
50K
100K
200K
250K
500K
1Meg
2Meg
100
2K
CIRCUIT DIAGRAM
NOTES
Metric equivalents, based on 1 inch ꢂ 25.4mm are
rounded to the same number of significant figures
as in the original English units and are provided for
general information only.
(2)
INCH
mm
(1)
(3)
Tolerances unless otherwise specified:
Linear ꢂ .01 inches ꢁ.25mmꢃ
Angular ꢂ 2 degrees
CW
Model 68
1-53
PACKAGING
Standard: Boxes
Capacity
ꢂ
ꢂ
100 Units ꢁ68Wꢃ
50 Units ꢁAll other stylesꢃ
Option:
Tubes
All units oriented with #1 pin to same side.
Pin Style
Magazine Width
P
W
X
ꢂ
ꢂ
ꢂ
ꢂ
0.57”
0.66”
20.9”
0.33”
0.90”
20.4”
0.33”
0.90”
24.4”
Height
Length
Capacity
50 Units 50 Units 50 Units
Option:
Tape & Reel, Ammo Pack ꢁAvailable only for 68W and 68Xꢃ
All units oriented with #1 pin to the right of the direction of feed.
Seat Plane to
Centerline of
Sprocket Hole
Width
Sprocket
Capacity
Diameter
Tape Fold
Box
ꢂ
ꢂ
ꢂ
ꢂ
ꢂ
ꢂ
ꢂ
.71” ꢁ18.03 mmꢃ
18 mm
Single Hole .50” spacing
1,000 Units
14” ꢁ356 mmꢃ
12” ꢁ305 mmꢃ
Tape
Reel
Ammo
1.8” x 13” x 10”
ꢁ46mm x 330mm x 254mmꢃ
ORDERING INFORMATION
Standard:
68 P R 10K LF
Model Series
RoHS Compliant Product Code - Optional
Resistance Value
Resistance Prefix
Pin Style
Option:
68 W R 10K LF TB
Pin Style
Packaging Option:
TB ꢂ Tubes
ꢁPin styles P, W, Xꢃ
68 W F R 10K LF TR
Option:
Pin Style
Packaging Option:
AP ꢂ Ammo pack
TR ꢂ Tape & Reel
ꢁPin styles W, X onlyꢃ
Pin Style Suffix:
ꢁUsed with AP and TR packaging options.
Applicable to pin styles W & X only.
"F" designates 0.70" lead length.ꢃ
Model 68
1-54
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