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Series 270

Data Sheet

Electrocomponents

Rotary Potentiometer

Industrial

16mm Diameter

Carbon Composition

Rotary Potentiometer

Features

- Bushing

- Twist or Bend Tab

- Snap-in PC Bracket

- PC Terminal

Electrical and Mechanical Specifications

Resistance Range

500 ohms through 2 Megohms, linear

5K ohms through 200K ohms, audio

Resistance Tolerance

±30%, ±20%, ±10%

Power Rating

1/4 watts @ 55°C

(Resistance up to 100K ohms)

1/5 watts @ 55°C

(Resistance above 100K ohms)

Dielectric Strength

750 VAC for 1 minute

Maximum Operating Voltage

500 VDC

Insulation Resistance

100 Megohms minimum @ 250 VDC

Angle of Rotation

Total Rotation (Potentiometer and Switch)

Without Switch: 300°

With Switch:

315°

Effective Electrical Angle (Potentiometer)

Without Switch: 300°

With Switch:

290°

Rotational Torque

36-360 gf-cm

Stop Strength

5.76 kgf-cm minimum

Push-Pull Strength of Shaft

10 kg for 10 seconds

Rotational life

10K cycles

Operating temperature

-10°C to +70°C

Solder Heat Resistance

260°C for 5 seconds

Mounting Information

- Bushing

- Twist Tab

- Bend Tab

- Snap-in PC Bracket

- PC Terminal

1-9

CTS Electrocomponents

03/27/15

www.ctscorp.com

Electrical and Mechanical Specifications

Shaft and Bushing Information

Metal Shaft and Bushing

Single or Dual Section Potentiometer with One Shaft

Shaft Diameter

inch

.125

.156

.187

.236

.250

3.20

4.00

4.70

6.00

6.35

inch

1/4" – 32UNEF-2A

3/8" – 32UNEF-2A

Bushing Diameter

M7 X .75P

M8 X .75P

M9 X .75P

Concentric Tandem Potentiometer with Two Shafts

Outer Shaft Diameter

inch

.236

.250

6.00

6.35

Inner Shaft Diameter

inch

.156

.125

4.0

3.2

Bushing Diameter

inch

3/8" – 32UNEF-2A

M8 X.75P

M9 X.75P

Molded Shaft and Bushing

Single Section Potentiometer with One Shaft

Shaft Diameter

inch

.156

.187

.236

.250

4.00

4.70

6.00

6.35

inch

1/4" – 32UNEF-2A

3/8" – 32UNEF-2A

Bushing Diameter

M7 X .75P

M8 X .75P

M9 X .75P

Shaft with Twist Tab, Bend Tab, Snap-in PC Bracket, or PC Terminal

All metal or molded shaft diameters can be used except .187”(4.7mm), which can be used with snap-in PC bracket only.

Terminal Information

Standard:

Solder lug formed 90° to the rear on single and multi-section

PC terminals standard .438" (11.1mm) from center line of control to PC board, straight terminals extend .156" (4.0mm)

into PC board.

PC terminals formed 90° to the rear, away from panel mounting. Terminals extend .442" (11.2mm) from mounting surface.

U: PC terminals formed 90° forward toward mounting surface. Terminals extend .187" (4.7mm) beyond mounting surface.

Special:

Solder lug perpendicular to shaft. Or, solder lug formed 60° to the rear.

Wire wrap terminals — .156" (4.0mm) terminal extension beyond base, formed 60° to the rear.

2-9

CTS Electrocomponents

03/27/15

www.ctscorp.com

Electrical and Mechanical Specifications

Optional Power Switches (All SPST)

9.0

.354

15.3

.602

5.2

.205

Ø2.41

.095 HOLES(2)

0.4

.016

3.8

.150

5A @ 20 VDC

057

Rotary

3A @ 125 VAC

(UL Recognized)

Switch Actuating Torque - 2 to 10 in. oz.

(144 to 720gf-cm)

0.8

.031

4.37

.172

4.50

.177

16.6

.652

SERIES

TYPE

ELECTRICAL

RATING

11.15

.439

0.4

.016

4.37

.172

Ø1.40 MIN. (2)HOLES

.055

4.50

.177

0.2

.008

DIMENSION:

inch

9.1

.358

15.9

.626

SERIES

DEMI

TYPE

Push On-Pull Off

Momentary Contact

Push On

ELECTRICAL

RATING

3A @ 20 VDC

0.4

.016

3.2

.126

3.6

.142

X=12.7

.500

Y=15.5

.610

4.37

.172

4.37

.172

Ø1.40 MIN. (2)HL'S

.055

DIMENSION:

inch

3-9

CTS Electrocomponents

03/27/15

www.ctscorp.com

270X

Metal Shaft, Bushing Mount, Printed Circuit “X” Type Terminals

MOUNTING HOLE DETAIL

MOUNTING SURFACE

L±0.8

.031

9.53

.375

"A"±

0.4

.016

7.95

.313

2.39

.094

7.95±0.05

.313±.002

7.95±0.05

.313±.002

7.95

.313

CLEARANCE FOR BUSHING.

11.13

.438

15.09

.594

CLEARANCE FOR 2.4 X 1.0(.094 X .039)

LOCATING LUG. (2)HOLES.

MOUNTING SURFACE

Ø15.9

.626

3/8-32UNEF-2A

CCW

WIPER

15.9

.626

4.09

REF.

.162

CLOCKWISE

CIRCUIT

4.37±0.05

.172±.002

4.37±0.05

.172±.002

Ø1.4 MIN.

.055

(3) HOLES

RECOMMENDED PCB LAYOUT

DIMENSION:

INCH

270U

Metal Shaft, Bushing Mount, Printed Circuit “U” Type Terminals

MOUNTING SURFACE

9.53

.375

L±0.8

.031

"A"± 0.4

.016

2.39

.094

7.95

.313

CLEARANCE FOR 2.4 X 1.0 (.094 X .039)

MOUNTING LUG. (2)HOLES.

CLEARANCE FOR BUSHING

7.95

.313

8.00±0.05

.315±.002

8.00±0.05

.315±.002

Ø15.9

.626

11.30±0.05

.445±.002

11.13

.438

3/8-32UNEF-2A

9.2± 0.4

.362± .16

11.30

.445

4.37±0.05

.172±.002

4.37±0.05

.172±.002

Ø1.4 MIN.

.055

(3) HOLES

15.9

.626

CCW

WIPER

RECOMMENDED PCB LAYOUT

CLOCKWISE

CIRCUIT

DIMENSION:

INCH

4-9

CTS Electrocomponents

03/27/15

www.ctscorp.com

270V

Metal Shaft, Bushing Mount, Printed Circuit “V” Type Terminals

MOUNTING HOLE DETAIL

MOUNTING SURFACE

9.53

.375

L±0.8

.031

"A"± 0.4

.016

7.95±0.05

.313±.002

7.95±0.05

.313±.002

7.95

.313

CLEARANCE FOR BUSHING.

2.39

.094

7.95

.313

12.29

.484

CLEARANCE FOR 2.4 X 1.0(.094 X .039)

LOCATING LUG. (2)HOLES.

CENTER LINES

OF CONTROL

Ø15.9

.626

3/8-32UNEF-2A

11.2± 0.4

.441± .16

CCW

CLOCKWISE

CIRCUIT

WIPER

4.37±0.05

.172±.002

4.37±0.05

.172±.002

12.29

.484

15.9

.626

Ø1.4 MIN.

.055

(3) HOLES

DIMENSION:

INCH

RECOMMENDED PCB LAYOUT

275X

Metal Shaft, Bushing Mount, Printed Circuit “X” Type Terminals

MOUNTING HOLE DETAIL

MOUNTING SURFACE

L±0.8

.031

7.95

.313

2.39

.094

Ø15.9

.626

12.5

.492

17.00

.669

3/8-32UNEF-2A

4.5

.177

CCW

CLOCKWISE

CIRCUIT

WIPER

5.00±0.05

.197±.002

5.00±0.05

.197±.002

Ø1.4 MIN.

.055

(3) HOLES

CLEARANCE FOR BUSHING.

7.95

.313

CLEARANCE FOR 2.4 X 1.0(.094 X .039)

LOCATING LUG. (2)HOLES.

MOUNTING SURFACE

7.95±0.05

.313±.002

7.95±0.05

.313±.002

9.53

.375

"A"±

0.4

.016

4.09

REF.

.162

15.9

.626

RECOMMENDED PCB LAYOUT

DIMENSION:

INCH

5-9

CTS Electromonponents

03/27/15

www.ctscorp.com

参数对比

与270X232A103B2B1相近的元器件有：270X232A102B2A1、270X232A105B1A1、270X232A103B1B1、270X232A103B2A1、270X232A104B1B1、270X232A104B2B1。描述及对比如下：

型号	270X232A103B2B1	270X232A102B2A1	270X232A105B1A1	270X232A103B1B1	270X232A103B2A1	270X232A104B1B1	270X232A104B2B1
描述	Potentiometer, Carbon Composition, 0.25W, 10000ohm, 500V, 20% +/-Tol	Potentiometer, Carbon Composition, 0.25W, 1000ohm, 500V, 20% +/-Tol	Potentiometer, Carbon Composition, 0.2W, 1000000ohm, 500V, 20% +/-Tol	Potentiometer, Carbon Composition, 0.25W, 10000ohm, 500V, 20% +/-Tol	Potentiometer, Carbon Composition, 0.25W, 10000ohm, 500V, 20% +/-Tol	Potentiometer, Carbon Composition, 0.25W, 100000ohm, 500V, 20% +/-Tol	Potentiometer, Carbon Composition, 0.25W, 100000ohm, 500V, 20% +/-Tol
是否Rohs认证	符合	符合	符合	符合	符合	符合	符合
包装说明	Panel Mount,	Panel Mount,	Panel Mount,	Panel Mount,	Panel Mount,	Panel Mount,	Panel Mount,
Reach Compliance Code	unknow	unknow	unknow	unknow	unknow	unknow	unknow
ECCN代码	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Factory Lead Time	4 weeks	4 weeks	4 weeks	4 weeks	4 weeks	4 weeks	4 weeks
构造	Rotary	Rotary	Rotary	Rotary	Rotary	Rotary	Rotary
封装直径	15.9 mm	9.35 mm	9.35 mm	15.9 mm	9.35 mm	15.9 mm	15.9 mm
封装长度	13.34 mm	18.54 mm	18.54 mm	13.34 mm	18.54 mm	13.34 mm	13.34 mm
封装形式	Panel Mou	Panel Mou	Panel Mou	Panel Mou	Panel Mou	Panel Mou	Panel Mou
额定功率耗散 (P)	0.25 W	0.25 W	0.2 W	0.25 W	0.25 W	0.25 W	0.25 W
电阻	10000 Ω	1000 Ω	1000000 Ω	10000 Ω	10000 Ω	100000 Ω	100000 Ω
电阻器类型	POTENTIOMETER	POTENTIOMETER	POTENTIOMETER	POTENTIOMETER	POTENTIOMETER	POTENTIOMETER	POTENTIOMETER
旋转角	290 deg	300 deg	300 deg	290 deg	300 deg	290 deg	290 deg
技术	CARBON COMPOSITION	CARBON COMPOSITION	CARBON COMPOSITION	CARBON COMPOSITION	CARBON COMPOSITION	CARBON COMPOSITION	CARBON COMPOSITION
容差	20%	20%	20%	20%	20%	20%	20%
工作电压	500 V	500 V	500 V	500 V	500 V	500 V	500 V
Base Number Matches	1	1	1	1	1	1	1