7284R2KT2L.25XX [TTELEC]
7/8 Diameter 10-Turn Wirewound Precision Potentiometer; 7/8直径10圈线绕精密电位器型号: | 7284R2KT2L.25XX |
厂家: | TT Electronics |
描述: | 7/8 Diameter 10-Turn Wirewound Precision Potentiometer |
文件: | 总5页 (文件大小:78K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MODEL 7280 SERIES
7/8” Diameter
10-Turn
Wirewound
2
Precision Potentiometer
MODEL STYLES
ꢃ.81
ꢃ.8ꢂ
1/8” Shaft, 1/4” Bushing
1/8” Shaft, Servo
ꢃ.84
ꢃ.86
6mm Shaft, ꢂ/8” Bushing
1/4” Shaft, ꢂ/8” Bushing
1/4” Shaft, ꢂ/8” Bushing
ꢃ.88 (for heavy side load applications) NEW PRODUCT
ELECTRICAL
Resistance Range, Ohms
100 to 100K
±±5
Standard Resistance Tolerance
Minimum Practical Resistance Tolerance
Independent Linearity
±15
±0ꢀ.±5
Minimum Practical Independent Linearity
±0ꢀ1±5, ꢁ ꢂ00 Ohms
±0ꢀ0ꢃ±5, ≥ ꢂ00 Ohms
.ꢀ0 at ꢃ0°C derating to 0 at 1.±°C
1,000V rms
Power Rating, Watts
Dielectric Strength
Insulation Resistance, Minimum
Noise, Maximum
1,000 Megohms
100 Ohms
Actual Electrical Travel
ꢂ600° + 10° – 0°, > 100 Ohms
ꢂ600° + 10° – ±°, ≤ 100 Ohms
±ꢂ°
Tap Tolerance
End Voltage, Maximum
0ꢀ.±5 of input voltage
Specifications subject to change without noticeꢀ
2-97
Model 7280 Series
ENVIRONMENTAL (MIL-R-12934)
Operating Temperature Range
Static: –±±°C to +1.±°C
Dynamic: –40°C to +1.±°C
Temperature Cycling
± cycles, –±±°C to +1.±°C (±5 ∆R)
Shock, 6ms Sawtooth
Vibration
Moisture Resistance
100G’s (0ꢀ1ms discontinuity maxꢀ)
1±G’s, 10 to .,000 Hz (±5 ∆R, 0ꢀ1ms discontinuity maxꢀ)
Five .4 hour cycles (ꢂ5 ∆R)
High Temperature Exposure
Rotational Load Life
Rotational Life Model ꢃ.88 (1 pound Side Load)
1,000 hours at 1.±°C (±5 ∆R)
1 milꢀ shaft revꢀ + 900 hrsꢀ at rated wattage at ꢃ0°C (±5 ∆R)
1 milꢀ shaft revꢀ + 900 hrsꢀ at rated wattage at ꢃ0°C (±5 ∆R)
MECHANICAL
Total Mechanical Travel
Number of Gangs, Maximum
Weight, Nominal (single gang)
Backlash, Maximum
ꢂ600° + 1±° – 0°
.
0ꢀꢃ± ozꢀ
1°
7281, 7284, 7286
60 ozꢀ-inꢀ
.± lbꢀ-inꢀ
ꢀ010”
7283
ꢂ6 ozꢀ-inꢀ
N/A
Static Stop Strength
Panel Nut Tightening Torque, Maximum
Shaft End Play, Maximum
ꢀ00±”
Shaft Runout, TꢀIꢀRꢀ, Maximum
Pilot Diameter Runout, TꢀIꢀRꢀ, Maximum
Lateral Runout, TꢀIꢀRꢀ, Maximum
Shaft Radial Play, Maximum
ꢀ00ꢂ”
ꢀ004”
ꢀ00±”
ꢀ00ꢂ”
ꢀ00.”
ꢀ00.”
ꢀ004”
ꢀ00.”
Start/Run Torque, Maximum (per gang)
0ꢀ8 ozꢀ-inꢀ
0ꢀ6 ozꢀ-inꢀ
STANDARD RESISTANCE VALUES, OHMS
Theoretical
Resolution
(% Nominal)
Total
Resistance
Tempco
of Wire
100
.00
±00
1K
.K
±K
10K
.0K
±0K
100K
0ꢀ0±9
0ꢀ0ꢂꢃ
0ꢀ0ꢂ0
0ꢀ0.4
0ꢀ0.0
0ꢀ018
0ꢀ01ꢃ
0ꢀ016
0ꢀ010
0ꢀ008
±.0 ppm/°C
±.0 ppm/°C
±.0 ppm/°C
±.0 ppm/°C
±.0 ppm/°C
±.0 ppm/°C
±.0 ppm/°C
±.0 ppm/°C
±.0 ppm/°C
±.0 ppm/°C
2-98
Model 7280 Series
OUTLINE DIMENSIONS (Inch/mm)
Dim.
7281
7284
7286
Models 7281, 7284 and 7286
ꢀ688 ± ꢀ0ꢂ1
1ꢃꢀ4ꢃ± ± 0ꢀꢃ8ꢃ
ꢀ81. ± ꢀ0ꢂ1
.0ꢀ6.± ± 0ꢀꢃ8ꢃ
ꢀ81. ± ꢀ0ꢂ1
.0ꢀ6.± ± 0ꢀꢃ8ꢃ
A
Bushing Mount with Sleeve Bearing
+0ꢀ0000
-0ꢀ000ꢂ
+0ꢀ0000
-0ꢀ000±
+0ꢀ0000
-0ꢀ000±
ꢀ1.48
ꢀ.ꢂ6.
ꢀ.±00
Diaꢀ
Diaꢀ
Diaꢀ
Diaꢀ
Diaꢀ
Diaꢀ
B
+0ꢀ0000
ꢂꢀ1699
+0ꢀ0000
6ꢀ0000
+0ꢀ0000
6ꢀꢂ±00
-0ꢀ00ꢃ6
-0ꢀ01.ꢃ
-0ꢀ01.ꢃ
2
Mounting Surface
Dimꢀ A
+0ꢀ000
-0ꢀ00.
+0ꢀ000
-0ꢀ00.
+0ꢀ000
-0ꢀ00.
1ꢀ1.±±ꢀ0ꢂ1
.8ꢀ±8±0ꢀꢃ9
ꢀ406
ꢀ.81
ꢀ406
C
D
+0ꢀ000
10ꢀꢂ1.
+0ꢀ000
ꢃꢀ1ꢂꢃ
+0ꢀ000
10ꢀꢂ1.
ꢀꢃ±0±ꢀ016
19ꢀ1±0ꢀ41
-0ꢀ0±1
-0ꢀ0±1
-0ꢀ0±1
ꢀ1.±
1/4 - ꢂ. UNEF Thread ꢂ/8 - ꢂ. UNEF Thread
ꢂ/8 - ꢂ. UNEF Thread
Minꢀ
ꢂꢀ18
Slider
CCW
CW
ꢃ±°
Maxꢀ
ꢀ6.±
R Maxꢀ
1±ꢀ9
Dimꢀ B
Dimꢀ C
ꢀ080±ꢀ001
.ꢀ0ꢂ±0ꢀ0ꢂ
+ꢀ000
Chamfer
ꢀ016/0ꢀ41 Maxꢀ x 4±°
ꢀ8ꢃ±±ꢀ016
..ꢀ.±0ꢀ41
Diaꢀ
ꢀ06.
1ꢀ±8
Diaꢀ
-ꢀ010
+0ꢀ00
-0ꢀ.±
Dimꢀ D
ꢀꢂ1.±ꢀ016
ꢃꢀ9ꢂ±0ꢀ41
Slot: ꢀ0ꢂ.±ꢀ00±/0ꢀ81ꢂ±0ꢀ1.ꢃ Wide X
ꢀ0ꢂ.+ꢀ010-ꢀ000/0ꢀ81ꢂ+0ꢀ.±4-0ꢀ000 Deep
(Not on Rear Shaft Models)
OPTIONAL TERMINAL CONFIGURATION
40°
VIEW B
.110
SLIDER
2.794
.625 R MAX
15.9 R MAX
.020 Thickness
.060 ± .003
Dia.
1.524 ± .076
.062 ± .003
1.524 ± .076
Use Special Feature Code “FT” to order.
Enlarged View B
2-99
Model 7280 Series
OUTLINE DIMENSIONS (Inch/mm)
Model 7283
Servo Mount with Ball Bearing
Mounting Surface
1ꢀ.±0±ꢀ0ꢂ1
ꢂ1ꢀꢃ±±0ꢀꢃ9
ꢀꢂꢃ±±ꢀ0ꢂ1
9ꢀ±ꢂ±0ꢀꢃ9
ꢀ8ꢃ±±ꢀ016
..ꢀ.±0ꢀ41
Clamp
Ears
ꢀꢃ81
19ꢀ8
ꢀ6.±
1±ꢀ9
Diaꢀ Maxꢀ
Rꢀ Maxꢀ
ꢀ.±0
+ꢀ0000
-ꢀ000ꢂ
+0ꢀ0000
-0ꢀ00ꢃ6
ꢀ1.48
10±°
Maxꢀ
6ꢀꢂ±
Minꢀ
CCW
CW
Diaꢀ
Diaꢀ
Slider
ꢂꢀ1699
+ꢀ000
+ꢀ00±
-ꢀ010
+0ꢀ1ꢂ
-0ꢀ.±
ꢀ6.±
ꢀ8ꢃ±
..ꢀ.
-ꢀ001
+0ꢀ000
-0ꢀ0.±
Diaꢀ
1±ꢀ8ꢃ±
ꢀ080±ꢀ001
.ꢀ0ꢂ±0ꢀ0ꢂ
Diaꢀ
Chamfer
ꢀ8ꢃ±±ꢀ016
..ꢀ.±0ꢀ41
Housing Diaꢀ
ꢀ0±ꢃ
1ꢀ4±
Minꢀ
Clamp
ꢀ016/0ꢀ406 Maxꢀ x 4±°
ꢀ06.±ꢀ00±
1ꢀ±8±0ꢀ1ꢂ
ꢀ9..
Diaꢀ Maxꢀ
.ꢂꢀ4
ꢀ06.±ꢀ00±
1ꢀ±8±0ꢀ1ꢂ
OPTIONAL TERMINAL CONFIGURATION
.110
105° MAX
2.794
.020 Thickness
40°
.060 ± .003
1.524 ± .076
VIEW B
Dia.
SLIDER
.625 R MAX
15.9 R MAX
.062 ± .003
1.524 ± .076
Enlarged View B
Use Special Feature Code “FT” to order.
METRIC CONVERSIONS
1 inꢀ
1 ozꢀ
.±ꢀ4 mm
.8ꢀ4 gm
1 ozꢀ-inꢀ
1 lbꢀ-inꢀ
0,00ꢃ N-m
0,11ꢂ N-m
2-100
Model 7280 Series
SPECIAL FEATURES
Center Tap
Linearity Tape
Rear Shaft Extension (ꢃ.8ꢂ, ꢃ.86 single cup only)
Flatted Shaft
Slotted Shaft (Standard on single cup ꢃ.86 without RS)
Shaft Lock (ꢃ.81, ꢃ.86 only)
High Torque, .–6 ozꢀ-inꢀ (ꢃ.86 only)
Additional Gangs
Gold Plated Solder Lug Terminals (See Optional Terminal Configuration)
CT
LT
RS
FS
SS
SL
HT
.G
FT
2
ORDERING INFORMATION
7286 R 10K T2 L .25 XX
Model Series
Resistance Prefix
Resistance Value
Optional Special
Feature Code
Linearity
Optional
Non-Standard Tolerance
MATCHING TURNS COUNTING DIALS
ꢃ.81: RBJ, .601, .641
ꢃ.86: .606, .60ꢃ, .6.6, .6.ꢃ, .646, .64ꢃ, .1.6, .606S, .60ꢃS, .646S, .64ꢃS, RB
CIRCUIT DIAGRAM
NOTES
Metric equivalents, based on 1 inch = 25.4mm are rounded to
the same number of significant figures as in the original
English units and are provided for general information only.
(S)
INCH
mm
(CCW)
(CW)
Tolerances unless otherwise specified:
Linear = .01 inches
(.25mm)
Angular = 2 degrees
2-101
Model 7280 Series
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