7280 [TTELEC]

7/8 Diameter 10-Turn Wirewound Precision Potentiometer; 7/8直径10圈线绕精密电位器


型号：	7280
厂家：	TT Electronics
描述：	7/8 Diameter 10-Turn Wirewound Precision Potentiometer 7/8直径10圈线绕精密电位器电位器
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

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

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)

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.”

ꢀ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

±K

10K

.0K

±0K

100K

0ꢀ0±9

0ꢀ0ꢂꢃ

0ꢀ0ꢂ0

0ꢀ0.4

0ꢀ0.0

0ꢀ018

0ꢀ01ꢃ

0ꢀ016

0ꢀ010

0ꢀ008

±.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

Bushing Mount with Sleeve Bearing

+0ꢀ0000

-0ꢀ000ꢂ

+0ꢀ0000

-0ꢀ000±

+0ꢀ0000

-0ꢀ000±

ꢀ1.48

ꢀ.ꢂ6.

ꢀ.±00

Diaꢀ

+0ꢀ0000

ꢂꢀ1699

+0ꢀ0000

6ꢀ0000

+0ꢀ0000

6ꢀꢂ±00

-0ꢀ00ꢃ6

-0ꢀ01.ꢃ

Mounting Surface

Dimꢀ A

+0ꢀ000

-0ꢀ00.

+0ꢀ000

-0ꢀ00.

+0ꢀ000

-0ꢀ00.

1ꢀ1.±±ꢀ0ꢂ1

.8ꢀ±8±0ꢀꢃ9

ꢀ406

ꢀ.81

ꢀ406

+0ꢀ000

10ꢀꢂ1.

+0ꢀ000

ꢃꢀ1ꢂꢃ

+0ꢀ000

10ꢀꢂ1.

ꢀꢃ±0±ꢀ016

19ꢀ1±0ꢀ41

-0ꢀ0±1

ꢀ1.±

1/4 - ꢂ. UNEF Thread ꢂ/8 - ꢂ. UNEF Thread

ꢂ/8 - ꢂ. UNEF Thread

Minꢀ

ꢂꢀ18

Slider

CCW

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

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)

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

(CCW)

(CW)

Tolerances unless otherwise specified:

Linear = .01 inches

(.25mm)

Angular = 2 degrees

2-101

Model 7280 Series

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